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Electric or magnetic motor

Subclass of:

417 - Pumps

417321000 - MOTOR DRIVEN

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
417423100 Rotary motor and rotary nonexpansible chamber pump 297
417415000 Reciprocating rigid pumping member 104
417412000 Collapsible wall pump 86
417410300 Rotary expansible chamber pump 77
417420000 Pump magnetically coupled to rotary drive 50
417422000 Sealed service conduit 14
417411000 Including electric power generating or storage means 12
417410200 Having piezoelectric driven blade 9
417414000 Internal - external pressure balancer 4
20110194956MECHANISM FOR SEALING PFA SEAL BAGS - A seal section for use in a downhole submersible pumping system includes a housing, a bag support tube extending through the housing, a shaft positioned inside the bag support tube and a bag plate connected to the bag support tube. The bag plate preferably includes an end cap secured to the bag support tube and a locking collar threadingly engaged with the end cap. The bag plate is configured to receive the open end of a cylindrical seal bag manufactured from perflouroalkoxy polymer. The end cap includes a tapered head that tapers from a first diameter that is slightly larger than the inner diameter of the seal bag to a second diameter that is slightly smaller than the inner diameter of the seal bag. This mechanism for securing the seal bag obviates the need for o-ring or other mechanical seals between the seal bag and the bag plate.08-11-2011
20110014071PROTECTOR FOR ELECTRICAL SUBMERSIBLE PUMPS - A system and method is used to protect a motor of a submersible pumping system. A variety of motor protector features are provided to facilitate operation of the motor protector and submersible pumping system in multiple wellbore environments and applications.01-20-2011
20130216409AMPHIBIOUS PUMP - An amphibious pump is provided including a wet type motor with coolant and an absorbing mechanism of the expansion of the coolant inside the motor chamber, dividing it into two chambers, at least one expansion joint between an internal chamber of the motor, hermetically closed, and an equalization inner chambers and a means to equalize the internal pressure for the pumped fluid. The electric motor is immersed m a cooling liquid, usually oil, in a chamber, and, the other camera is filled with the aqueous solution, which communicates with the outside through the equalizer assembly, which can, for example, comprise a rubber mask with micro holes, which allows the exchange of water between the outer chamber and the chamber of the motor.08-22-2013
20110123374COMPENSATOR ASSEMBLY FOR SUBMERSIBLE PUMP SYSTEM - A submersible pump system with a pump, motor and compensator assembly. In one embodiment, the compensator assembly is made up of multiple elastomeric compensators and a housing. The elastomeric compensators, which are made up of an engaging end, a floating end and a series of alternating crests and grooves, may contain motor cooling liquid. The crests and grooves extend along the compensator's longitudinal axis. The compensators possess a degree of elasticity sufficient for a width of at least one of the respective grooves to expand and contract along with the motor cooling liquid. The crests slide along an interior wall of the housing, while the floating end moves within the housing in cooperation with expansion and contraction of the width of at least one of the grooves.05-26-2011
Entries
DocumentTitleDate
20110206544Electric Compressor Integrating Inverter - Provided is an inverter-integrated electric compressor wherein the attachability of a coil component has been improved while reliability of a connection state at the electrical joints is ensured by simplifying a mechanism which electrically connects the coil component, such as one for removing electromagnetic noise, to a motor drive circuit. An inverter-integrated electric compressor, wherein a motor drive circuit including an inverter is surrounded by a compressor housing, is characterized in that a coil component comprising a plurality of conductor wires wound in parallel is attached to the motor drive circuit through a seat, the seat is provided with a protrusion which can be fitted into a seat affixing hole provided in a case member for housing the motor drive circuit, a plurality of terminal holes are arranged in the portion where the protrusion is provided, the plurality of conductor wires pulled out from the coil component are inserted, in a one-to-one correspondence, into the plurality of terminal holes in such a manner that the mutual interval between the wires is widened, and the end of each conductor wire is connected electrically to the motor drive circuit.08-25-2011
20090196772Oil Pump - Fluid inlet and outlet portions are provided for introducing and discharging a hydraulic fluid. The fluid outlet portion includes a plurality of outlet ports. A drive shaft is provided that rotates s about its axis. A plurality of volume variable pump chambers are arranged about the drive shaft and rotated by the same. The pump chambers are arranged between the fluid inlet and outlet portions for compressing the hydraulic fluid from the fluid inlet portion before discharging the same from the fluid outlet portion. The pump chambers are exposed to the outlet ports separately one after another when the pump chambers are rotated by the drive shaft. A discharge rate varying mechanism is provided that varies a fluid discharge rate of each of the outlet ports by varying the amount of the fluid led to the outlet ports.08-06-2009
20100061867Electromagnetic Transducer Apparatus - An electromagnetic transducer apparatus (03-11-2010
20080260554Fan with attachment hooks - A device for cooling a pet includes a fan with a housing. A motor coupled with a blade positioned in the housing. The motor is electrically coupled with a power source to energize the motor to rotate the blade. At least one member is coupled with the housing. The at least one member includes a cut-out to couple the member with an animal crate to mount the fan on the crate for cooling a pet inside of the crate.10-23-2008
20090191072PUMP FOR HIGH G-LOAD APPLICATIONS - A pump for high G-load applications comprises a motor assembly coupled to an impeller mounted in a rigid housing and support structure. The motor assembly further comprises a rotor specifically designed to support large radial forces. The rotor is supported by two bearing assemblies. A stator that interacts with the rotor is supported by two rings that position it in the housing. The impeller acts upon a working fluid via an axial inlet and tangential outlet, which comprises a diffuser section to improve the overall pump efficiency. In an aspect, a first distance between the first bearing and the second bearing defines a bearing span, and the first bearing comprises a bearing bore, wherein a ratio of the bearing span to the bearing bore comprises less than 10:1.07-30-2009
20090123308COMPRESSOR - A compressor has stator of a motor is installed in a closed container, on two planes normal to the center axis 05-14-2009
20090123307ELECTRICAL DEVICE AND PLUG FOR AN ELECTRICAL DEVICE - Known pumping devices have a connection lid, a connection cap slipped over the connection lid, a hollow chamber formed between the connection lid and the connection cap, and electrical connections that extend through the connection cap into the hollow chamber. It is disadvantageous that when fuels containing water are being pumped, such as ethanol, corrosion can occur at the electrical connections and at the uninsulated cable segments that are exposed to fuel near the electrical connections, for instance at the electrical coils or flexible cables of the carbon brushes, and in the final analysis this leads to an interruption in the electrical contact and thus to failure of the pumping device. In the electrical device of the invention, corrosion of the electrical connections and of the electrical components adjoining them upstream and downstream is avoided entirely or at least greatly diminished. According to the invention, the electrical connections are each provided in separate chambers of the hollow chamber.05-14-2009
20100158719ELECTRIC VENTILATOR - An electric ventilator (06-24-2010
20100158718OIL-FREE CENTRIFUGAL BLADE COMPRESSOR AND MAGNETIC-GAS BEARING THEREOF - A magnetic-gas bearing disposed in a compressor is provided. The magnetic-gas bearing includes an axis, multiple magnetic elements, multiple magnetic coils and a static pressure gas restrictor. The magnetic elements encircle the axis, and each magnetic element has two ends wound around by the magnetic coils respectively, such that the two ends of each magnetic element form a first magnetic pole and a second magnetic pole respectively. The static pressure gas restrictor encircles the axis and has a jet opening, such that the gas pass through the jet opening to form a gas-film between the static pressure gas restrictor and the axis. Besides, an oil-free centrifugal blade compressor including the magnetic-gas bearing mentioned above is also provided.06-24-2010
20130045120SEGMENTED FAN ASSEMBLY - Systems and devices for thermodynamically regulating portions of a dynamoelectric machine are disclosed. In one embodiment, a fan assembly element includes: an axially inner shroud segment configured to form a portion of an annular assembly about a rotor of a dynamoelectric machine, wherein the axially inner shroud segment includes a rotor hub interface configured to physically connect to a complementary portion of a rotor hub; a set of fan blades physically connected to and extending axially from a face of the axially inner shroud segment; and an axially outer shroud segment physically connected to the set of fan blades.02-21-2013
20100119387DEVICE FOR SUPPLYING FUEL - Devices for supplying fuel are already known, having a supply unit which has a pump housing connected to an electrical ground and is supported on a pump mount. It is disadvantageous that during operation, the pump mount can become electrostatically charged and has no device for electrostatic discharging during operation.05-13-2010
20100074772ELECTRIC COMPRESSOR FOR AUTOMOBILE USE - An object of the present invention is to provide an electric compressor for automobile use, which can satisfy a plurality of requirements including protection of an inverter board, suppression of electromagnetic noise, vibration and noise, and the like. A cover 03-25-2010
20100074771OIL PUMP FOR A REFRIGERATING COMPRESSOR - Oil pump for hermetic refrigerating compressor comprising a tubular sleeve having an upper portion affixed to at least one of the parts of crankshaft and rotor, and a lower portion having a lower end immersed in the lubricant oil, said tubular sleeve being provided with an inner surface presenting, along at least part of its longitudinal extension, at least one helical groove upwardly extending from the lower end; and a pump body disposed inside the tubular sleeve and defining, with the adjacent helical groove of the tubular sleeve, a lubricant oil ascending channel, said pump body presenting a lower end portion mounted to one of the parts of shell, cylinder block and stator, so as to be freely displaced within the tubular sleeve, in radial directions orthogonal to the crankshaft and rotatively locked in relation to the rotor.03-25-2010
20100074770INTEGRATED-INVERTER ELECTRIC COMPRESSOR - An integrated-inverter electric compressor is provided, in which a change of the combination of weld plating layers provided on weld surfaces of an electrical connection terminal of an inverter can be allowed for easily. In an integrated-inverter electric compressor in which an inverter is integrally fitted to a compressor housing and an electrical connection terminal that electrically connects the inverter to an electric motor and/or an external power source is provided, one end of the electrical connection terminal has a wire-bonding weld surface for the inverter, the wire-bonding weld surface being provided with a weld plating layer for welding a bonding wire thereto, whereas the other end of the electrical connection terminal has weld surfaces for the electric motor and/or the external power source, the weld surfaces of two sides being respectively provided with different weld plating layers for connecting lead wires, bus bars, or terminals thereto.03-25-2010
20130078124MOTOR-DRIVEN COMPRESSOR - A motor of motor-driven compressor includes a plurality of phase coils, and a plurality of phase wires are drawn from each of the phase coils. The phase wires are bundled and form a phase wire bundle. The tip portions of the phase wires are connected electrically by a conductive ring caulked by heating. A wire joint is formed so as to connect electrically each phase wire at the tip portion of the phase wire bundle. A storage chamber is formed so as to penetrate a cluster block. The wire joint is inserted in the storage chamber. The insertion opening is closed by a cylindrical member made of rubber.03-28-2013
20130078123ELECTRIC MOTOR FOR A MOTOR-DRIVEN COMPRESSOR AND SAID MOTOR-DRIVEN COMPRESSOR - An electric motor for a motor-driven compressor is provided. The electric motor includes a stator and a rotor. The stator is fixed to a housing. The rotor is arranged outward of the stator. The rotor is mounted on a rotary shaft to rotate integrally with the rotary shaft. The stator includes slots and a stator coil wound about the slots. The rotor includes a rotary support and a magnet. The rotary support is fixed to the rotary shaft to rotate integrally with the rotary shaft. The magnet is supported by the rotary support. The arrangement of the magnetic poles of the magnet in the circumferential direction is a Halbach array.03-28-2013
20120183417COMBINED BLOWER/ROTOR FOR A COOLING FAN OF A MOTOR VEHICLE - The invention relates to a combined blower/rotor (07-19-2012
20130034456REFRIGERANT COMPRESSOR HAVING LINEAR DRIVE - A coolant compressor has a hermetically sealed compressor housing, in the interior of which lies a piston cylinder unit that compresses a coolant. The cylinder housing of the piston cylinder unit is closed at the front end thereof by a cylinder head. A linear drive is provided, comprising at least one oscillating body which is surrounded by an excitation winding and which is connected to the piston to move same along a longitudinal axis in an oscillating manner. The piston cylinder unit has at least one first permanent magnet that lies on the piston, and at least one second permanent magnet that lies on the cylinder housing. Both magnets face each other and are oriented in the same magnetic pole direction in order to generate a repelling effect between both magnets to limit the path of the piston in the region of the top or bottom dead center.02-07-2013
20130034455ELECTRIC PUMP - An electric pump may comprise a motor, an impeller driven by the motor, and a casing comprising a pump chamber that accommodates the impeller. The motor and the pump chamber may be disposed along a rotational axis of the impeller. The casing may comprise an intake port extending in a direction parallel to the rotational axis of the impeller and a discharge port extending in a direction perpendicular to the rotational axis of the impeller. The motor may have an oblong cross section that is perpendicular to the rotational axis of the impeller.02-07-2013
20130039786REFRIGERANT COMPRESSOR MAGNETIC BEARING - A magnetic bearing assembly includes a lamination stack with coil apertures extending between opposing sides. A continuous unitary insulation layer is overmoulded onto the opposing sides and within the coil apertures providing a coil aperture lining. The insulation layer includes a wall within the coil aperture adjoining coil aperture lining and bisecting the coil aperture into first and second openings. A coil portion is disposed in each of the first and second openings and electrically isolated from one another by the wall. The magnetic bearing assembly is arranged in a refrigerant compressor that includes an electric motor rotationally configured to rotationally drive an impeller via a shaft. A controller is in communication with the magnetic bearing and configured to energize the coils and provide a magnetic field rotationally supporting the shaft.02-14-2013
20130039785Device for Moving a Fluid - A device for moving a fluid, including a moving part to move the fluid, and a synchronous motor, where the synchronous motor includes a stator with at least one stator coil and a rotor with at least one rotor magnet, and where the moving part can be driven directly by the synchronous motor and acts as its rotor.02-14-2013
20090162222MOTOR-DRIVEN COMPRESSOR - A compressor includes a housing having an inlet port, a compression mechanism for compression of refrigerant introduced via the inlet port into the housing, a motor having a stator core and a coil, an inverter for driving the motor, and a rotary shaft rotated by the motor thereby to drive the compression mechanism. The compression mechanism, the motor and the inverter are aligned in the order in the housing in axial direction of the rotary shaft. The coil has a coil end projecting toward the inverter from the stator core and being disposed adjacent to an inner peripheral surface of the housing. The inlet port is located so as to face the coil end. A recess is formed on the inner peripheral surface of the housing for communicating with the inlet port. The recess extends in the axial direction of the rotary shaft toward the inverter beyond the coil end.06-25-2009
20120263612AXIAL GAP MOTOR AND PUMP DEVICE - Disclosed are a single rotor-type axial gap motor with low magnetic loss and high output, and a pump device using the axial gap motor. A first contact surface (10-18-2012
20100104459MICROPUMP ACTUATED BY DROPLETS - The invention relates to a micropump for which the pressure force is not limited by the electrowetting saturation angle, while being simple to manufacture. According to the invention, the microchannel (04-29-2010
20090155101MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor has a compression mechanism, a rotary shaft, an electric motor, a motor drive circuit, a connecting terminal and a housing assembly. The compression mechanism, the electric motor, and the motor drive circuit are disposed along the axial direction of the rotary shaft in the housing assembly having first through third housings. The first housing is used for mounting the electric motor and the compression mechanism. The second housing has a terminal mounting portion for fixing the connecting terminal. The first and second housings have fastening portions at the radially peripheral portion thereof. The third housing is joined to the second housing to form an accommodation space for accommodating the motor drive circuit. The closed casing is formed by fastening the fastening portions of the first and second housings by means of a first bolt and connecting the second housing to the open end of the first housing.06-18-2009
20090155100FLUID PUMP - The invention relates to an electric fluid pump with a semi-axial construction, in which a motor housing part (06-18-2009
20090155099PUMP FOR LIQUID COOLING SYSTEM - A pump includes a base (06-18-2009
20130028762CASCADE PUMP DEVICE - A cascade pump device may include a pump chamber, an impeller, a magnetic drive mechanism structured to rotate the impeller, and a pump case. The pump case is provided with two end faces located at both ends in an axial line direction and an intermediate part between the two end faces. The intermediate part is provided with a suction pipe and a discharge pipe and a wiring outlet part for taking out wiring lines for supplying an exciting current to a drive coil of a motor. The suction pipe and the discharge pipe are protruded in the same direction and the wiring outlet part is provided with a wiring line drawing-out guide part which determines a drawing-out direction of the wiring lines to the outer side. An angle between the drawing-out direction and a protruding direction of the suction pipe and the discharge pipe is less than 90° around the axial line.01-31-2013
20130028761PUMP DEVICE - A pump device may include a stator provided with a stator core having a ring-shaped part on a center side and a drive coil wound around the stator core, and a partition wall disposed configured to separate a pump chamber from the stator. The partition wall is provided with a protruded part in a bottomed tube-like shape which is protruded on an inner side of the ring-shaped part and an outer peripheral face of a tube shaped part structuring the protruded part is formed with a plurality of protruding parts protruding to an outer side in a radial direction. The stator core is fixed to the protruded part in a state that the plurality of the protruding parts is press-fitted to the ring-shaped part.01-31-2013
20130028760PUMP MOTOR COMBINATION - A pumping apparatus includes a housing having an inlet at a first end and an outlet at an opposite second end. An encapsulated stator defines an opening and is supported by the housing. A pressure plate includes diffuser vanes formed as part of the pressure plate. The pressure plate is formed as part of the encapsulated stator. A rotor is positioned at least partially within the opening and is rotatable with respect to the stator and an impeller is coupled to the rotor and cooperates with the pressure plate and the housing to pump a fluid from the inlet to the outlet in response to rotation of the rotor.01-31-2013
20130089442FAN MOTOR SET LOCATING STRUCTURE - A fan motor set locating structure includes a base seat and a motor set. The base seat has a bearing cup. At least one locating notch is formed on a top section of the bearing cup. A bearing is disposed in the bearing cup. The motor set includes an insulation support. One side of the insulation support is formed with a sleeve. The sleeve is capped on the bearing cup. The sleeve has at least one protrusion section protruding from the sleeve to the bearing cup corresponding to the locating notch. The protrusion section is engaged in the locating notch in abutment with the bearing. Accordingly, the motor set can be quickly fixedly assembled with the bearing cup to fix the bearing. Therefore, the number of the components is decreased and the assembling process is speeded.04-11-2013
20090304534ELECTRIC OSCILLATING DRIVE - An electric oscillating drive with at least one oscillating system (12-10-2009
20130071267ELECTRIC OIL PUMP - A pump housing of a gear pump and a stator of an electric motor are fastened to each other with bolts via a front insulator. Dowel pins are inserted in respective through-holes that are formed in the front insulator at equal intervals in a circumferential direction so as to be located next to insertion holes for the bolts. Respective end portions of each dowel pin are in contact with a bottom face of the pump housing and a pump-side surface of the stator core, and the pump housing and the front insulator are fixed to each other such that a slight gap is formed between the pump housing and the front insulator.03-21-2013
20130071266MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes an electric motor, a compression mechanism driven by the electric motor so as to compress refrigerant gas, a metal housing accommodating the electric motor and the compression mechanism, a suction passage communicable with interior of the housing wherein refrigerant gas flows through the suction passage, a discharge passage communicable with the interior of the housing wherein refrigerant gas discharged from the compression mechanism flows through the discharge passage and a check valve that is provided in at least one of the suction passage and the discharge passage, opened while the compressor is in operation and closed while the compressor is at a stop.03-21-2013
20090092507Fluid pump systems - A fluid pump system has a housing having a housing cover removably connected to a housing base. A plurality of fluid pump assemblies are inside of the housing. Each fluid pump assembly has an electric motor operatively connected to a fluid pump. Each fluid pump has a fluid inlet extending through a wall of the housing to an exterior of the housing and a fluid outlet extending through the wall of the housing to the exterior of the housing. An electrical component inside of the housing is electrically connected to each electric motor. The electrical component has an electrical connector extending through a wall of the housing to connect to a source of electrical power. The fluid pump system can dispense three different fluids, such as two detergents and a fabric softener in a laundry machine.04-09-2009
20090092506ROTOR ATTACHMENT FOR COMPRESSOR - A compressor having drive assembly including a crankshaft and a motor having a stator and a rotor. The rotor is received on a crankshaft and secured to the crankshaft via a counterweight. In one exemplary embodiment, the counterweight is shrink-fit or press-fit in position on the crankshaft and the rotor is attached to the counterweight. In one exemplary embodiment, the rotor may be secured to the counterweight by fasteners, such as bolts. The interference between the counterweight and the crankshaft is sufficiently strong to transfer driving loads from the rotor and through the counterweight to drive the crankshaft. In one exemplary embodiment, the rotor includes a central opening having a diameter larger than the diameter of the crankshaft. This allows for the rotor to fit closely to the crankshaft without touching the same. As a result, the rotor may be easily assembled as a slip-fit on the crankshafts and then secured to the counterweights.04-09-2009
20130058806DC Electric Fan - A direct-current (DC) electric fan configured for cooling purposes and for use in all places includes a base, a plurality of fixed-height interconnected inner and outer tubes extending upward from the base, and a driving motor provided in the base for driving the inner and outer tubes into reciprocal rotation, thereby simultaneously driving the fan unit mounted to each inner tube and between each two adjacent outer tubes to rotate over a predetermined rotation range. The blowing direction of each fan unit is also manually adjustable so that the blowing range of the fan can be adjusted and set according to personal needs.03-07-2013
20130058807Miniature Motor and Cooling Fan Having the Same - A miniature motor includes a base having a coupling portion. An engaging portion is provided on a periphery of the base surrounding the coupling portion to form a concave surface therebetween. A stator coil unit includes a substrate mounted on the concave surface. A rotating member is rotatably coupled with the coupling portion and includes a permanent magnet. The base includes a thermoplastic section having a reduced opening. The reduced opening is formed by heating and deforming the thermoplastic section after the stator coil unit is mounted on the concave surface, and the molten and deformed thermoplastic section takes shape to form the reduced opening after cooling. The base can be connected to a frame having an air inlet and an air outlet to form a fan housing, and the rotating member includes blades to form an impeller, providing a cooling fan including the miniature motor.03-07-2013
20110038743CENTRIFUGAL FAN - A curved portion is formed at a corner portion between a shroud and a positive pressure surface of each of a plurality of blades. The curved portion has a curvature that decreases from a suction port or the vicinity of the suction port toward a corresponding one of discharge ports. The curved portion includes a curved surface that is concave in a direction of rotation of the fan and forms a part of the positive pressure surface. The curved portion raised inwardly into an airflow path so that a shortest distance between the outer peripheral portion of a hub and a portion of the curved surface in the vicinity of the shroud may gradually decrease toward the corresponding one of the discharge ports.02-17-2011
20110058965IN-LINE FLOW MIXER - A flow-conditioning system includes a pump, process tubing coupling the pump to a source of multiple component process fluid, and an in-line flow-mixing device positioned in the process tubing upstream of the pump. A system includes a well disposed below a body of water and providing a source of multiple component fluid, a pump disposed in and exposed to the water, process tubing coupling the pump to the well, and an in-line flow-mixing device positioned in the process tubing upstream of the pump.03-10-2011
20110014068STATOR, MOTOR, and COMPRESSOR - A stator for a motor of a compressor includes a stator core, an insulator fitted on an axial end face of the stator core, and coils wound around the stator core and the insulator. The insulator has an annular portion, a plurality of circumferentially arranged tooth portions projecting radially inwardly from an inner peripheral surface of the annular portion, and a cylindrical-shaped wall section erected on an axial end face of the annular portion. The coils include crossover wires routed on an outer peripheral surface of the wall section of the insulator so as to extend obliquely relative to a plane orthogonal to an axis of the stator, as viewed in a direction orthogonal to the axis.01-20-2011
20090269222MOTOR-DRIVEN COMPRESSOR - An electric motor includes a cylindrical stator that is formed with a plurality of slots. The cylindrical stator has polyphase coils that are formed by winding a plurality of conductive wires in the slots to have polyphase, a wire bundle and an insulating tube covering the wire bundle. Each conductive wire includes a core wire and an insulator that covering the core wire. The wire bundle has a drawing portion, a connecting portion and an elongated portion that is elongated between the drawing portion and the connecting portion for increasing creepage distance between the connecting portion and the housing thereby to increase insulation resistance. The connecting portion of the wire bundle provides a neutral point of the electric motor. The elongated portion and the connecting portion of the wire bundle are covered with the insulating tube.10-29-2009
20090068035REFRIGERANT COMPRESSOR ARRANGEMENT - The invention concerns a refrigerant compressor arrangement (03-12-2009
20130064698FLUID FEED PUMP, FLUID CIRCULATION DEVICE, MEDICAL DEVICE AND ELECTRONIC DEVICE - A fluid feed pump is configured, such that a fluid is fed from an outlet channel of the fluid feed pump through an outlet buffer chamber to a fluid channel. The outlet buffer chamber is designed to have a higher compliance than a compliance of a pump chamber. The driving period of the fluid feed pump is set to a shorter period than a time constant defined by the compliance of the pump chamber and a flow resistance between an inlet of the outlet channel and an outlet of the fluid channel. This enables the fluid to be fed with high efficiency by taking advantage of the pressure oscillation occurring between the pump chamber and the outlet buffer chamber.03-14-2013
20130064697ELECTRIC COMPRESSOR - An electric compressor includes a housing, an electric motor, a compression mechanism, and a resin molding. The electric motor includes a coil having coil ends projecting from each of two end surfaces of the stator. Refrigerant flows through the housing that accommodates the electric motor. The resin molding covers each coil end and includes an opening that exposes part of the coil end to the interior of the housing.03-14-2013
20090053080COLLET ADAPTER FOR A MOTOR SHROUD - An electrical submersible pump assembly (ESP) includes a pump section, a motor section, and a seal section. In one embodiment, an exterior of the pump section defines a gripping indentation above the pump intake. Alternatively, a clamp member may be provided that surrounds the pump, wherein the clamp member defines the gripping indentation. A collet adapter is affixed to an upper end of a shroud. The collet adapter has gripping members that engage the gripping indentation for attaching the shroud to the electrical submersible pump assembly. The collet adapter is provided to ease installation of the motor shroud onto the ESP as well as to ease removal of the motor shroud from the ESP. The collet adapter of the present invention eliminates precise alignment and bolt-on requirements of typical motor shroud mounting techniques.02-26-2009
20090047152SWING TYPE FAN - A swing type fan including a frame, a motor, at least one blade, at least one first magnetic element and at least one second magnetic element is provided. The motor is fixed to the frame and has a shaft passing through the frame. The blade is disposed between the shaft and the frame and has a first side and a second side opposite to the first side. The first side of the blade is connected to the frame. The first magnetic element is disposed on the blade and is located between the first side and the second side of the blade. The second magnetic element is connected to the shaft and is corresponding to the first magnetic element. The second side of the blade swings via a magnetic force between the first magnetic element and the second magnetic element as the shaft drives the second magnetic element to rotate.02-19-2009
20120114512LOW-PROFILE BLOWERS AND METHODS - A blower configured to be positioned in confined spaces and to provide ventilation of a fluid, such as temperature controlled air, is disclosed. In various embodiments, the blower is configured to have a reduced axial thickness, which can be desired in such confined spaces. In some embodiments, the blower has an integral filter, a wire channel for the routing of one or more wires, and/or an exposed backplate. In some embodiments, the blower has a snap-fit circuit board, containment system for mounting the motor, one or more vanes for directing fluid flow, shrouded impeller, and/or integrated connector.05-10-2012
20130164158CENTRIFUGAL FAN - A side wall of a centrifugal fan includes a gap expanding portion arranged to gradually expand a gap between an impeller and the side wall from an upstream end toward a downstream end with respect to a rotation direction of a rotating portion. In the centrifugal fan, an electronic component arranging portion of a board is arranged in an area surrounded by the gap expanding portion, the impeller, and an air outlet, and accordingly does not overlap with a motor or the impeller in an axial direction. The electronic component arranging portion is arranged in an area extending, in a circumferential direction about a central axis, from a position 180 degrees upstream from a middle of the air outlet downstream to the middle of the air outlet, that is, in an area where a wind channel has a large width.06-27-2013
20130164159MOTOR ASSEMBLY FOR AN ELECTRIC FAN - A motor assembly for a fan for a radiator of a motor vehicle, has an electric motor with a stator and an outer rotor driving an impeller. A support connected to the stator has a plurality of arms for fixing to a carrier structure. A casing includes a basin-like container and a heat dissipater forming a cover for the container. The casing contains a circuit board carrying components of a control circuit connected to the motor. The container has retention attachments engaged in a snap-fitting manner in snap seats provided in the arms of the support in order to bring about relative prepositioning of the container with respect to the support before the heat dissipater is fixed to the support.06-27-2013
20120237373BLOWER - A blower includes an air pump and a motor. The pump includes an impeller and a casing housing the impeller. The casing includes a casing inlet through which air is drawn in and a casing outlet through which the air is expelled by the impeller. The motor is arranged at the casing outlet and includes a stator and a rotor. The stator includes a stator core and a plurality of coils. The stator core includes a substantially ring-shaped yoke and a plurality of teeth extending inwards from the yoke. Each coil is wound around the yoke and is partially sandwiched between two adjacent teeth. The impeller is driven by the rotor.09-20-2012
20120237372MOTOR-DRIVEN COMPRESSOR AND WIRING METHOD FOR MOTOR-DRIVEN COMPRESSOR - A cluster block is arranged on an outer peripheral surface of a stator core. A lead wire is continuous with a U-phase coil, which extends from a coil end of the stator core, and is then connected to a U-phase connector. A lead wire is continuous with a V-phase coil, which extends from the coil end, and is then connected to a V-phase connector. A lead wire is continuous with a W-phase coil, which extends from the coil end, and is then connected to a W-phase connector. The lead wires are twisted and entwined with one another.09-20-2012
20100284838VEHICLE-AIR-CONDITIONER ELECTRIC COMPRESSOR - An inverter-integrated vehicle-air-conditioner electric compressor capable of eliminating malfunctions or the like due to electromagnetic noise interference and improving the reliability is provided. In a vehicle-air-conditioner electric compressor with which an inverter unit is integrated, lead-out positions of low-voltage cables and connectors for supplying a low voltage from a low-voltage power supply to a circuit on a low-voltage ground LV are provided either in a side surface opposite to a mounting position of high-voltage components and high-voltage cables for supplying a high voltage from a high-voltage power supply to a power system circuit on a high-voltage system ground HV; or at an end farthest away from the mounting position of the high-voltage cables and the high-voltage components in an adjacent side surface or the same side surface.11-11-2010
20110280748Centrifugal Blower with Partitioned Scroll Diffuser - A centrifugal blower having at least one radial plane dividing its scroll into sub-sections which may vary as to cut-off points and axial and radial dimensions as well as axial displacement to meet requirements of individual application system flow paths.11-17-2011
20110280750Reciprocating Refrigeration Compressor - A compressor (11-17-2011
20110280749SEALED COMPRESSOR WITH EASY TO ASSEMBLE OIL PUMP - A sealed compressor has a lower end cap secured to a center shell, and defines a sealed chamber. An electric motor is received within the sealed chamber. The electric motor drives a shaft that drives a compressor pump unit. A lower bearing housing includes a bearing for supporting the shaft, and an oil pump. The oil pump includes a pump housing including one of a slot and a leg, with the bearing housing including the other of a slot and a leg. The leg is received in the slot to position the pump housing within the bearing housing. The oil pump further includes a piston to be driven by the shaft to drive the lubricant from a sump in the sealed chamber upwardly into a passage in the shaft.11-17-2011
20110142696STATOR, MOTOR, AND COMPRESSOR - A stator includes a stator core, which has a plurality of stacked electromagnetic steel sheets, caulking portions configured to fix the plurality of electromagnetic steel sheets to each other, and a plurality of slot portions open toward an inner circumference side and arrayed along a circumferential direction. A number Q (an integer of 1 or greater) of the caulking portions, a number S of the slot portions and a number P of the poles satisfy Q≦S and Q=P×n/2 (where n is an integer of 1 or greater). The stator is preferably part of a motor for a compressor.06-16-2011
20110129370COMPRESSOR - A compressor comprises: a hermetically sealed container; a stator fixedly installed within the hermetically sealed container; a first rotary member rotating, within the stator, around a first rotary shaft longitudinally extending concentrically with the center of the stator by a rotating electromagnetic field from the stator, and provided with first and second covers fixed to upper and lower parts and rotating integrally with each other; a second rotary member space for compressing a refrigerant in a compression space formed between the first and second rotary members while rotating, within the first rotary member, around the second rotary shaft extending through the first and second covers upon receipt of a rotational force from the first rotary member; a vane for transmitting the rotational force to the second rotary member from the first rotary member, and partitioning the compression space into a suction region for sucking the refrigerant and a compression region for compressing/discharging the refrigerant; and first and second bearings fixed to the inside of the hermetically sealed container, and rotatably supporting the first and second rotary members in an axial direction.06-02-2011
20110318202CEILING FAN - A ceiling fan comprising an electric motor that drives a circular plate, the circular plate has three or four equally spaced quadrants positioned adjacent its periphery each quadrant is secured to the plate to be pivotal thereto to provide limited acuate movement about the pivot axis, each quadrant having a fan blade secured thereto, the acuate movement of each quadrant being confined from a first position where the blades are within the periphery of the plate to a second position where the blades extend radially outwardly at the plate, each quadrant being attached to the plate by a coil spring which urges the quadrant into the first position, each quadrant being directly joined to the adjacent quadrant by a rigid tie bar so that any movement of one quadrant causes the same movement of all the other quadrants.12-29-2011
20120107153AUTOMATIC INFLATION PUMP - Disclosed herein is an automatic inflation pump including a housing (05-03-2012
20110300007PFA MOTOR PROTECTION BAG - A motor assembly for use in a downhole submersible pumping system includes an electric motor and a motor protection bag. The motor protection bag surrounds a portion of the exterior surface of the motor to form an impermeable, corrosion-resistant barrier. The motor protection bag comprises a seamless, elongate cylindrical having a substantially constant inner diameter and open ends. The motor protection bag may be constructed from a suitable polymer, such as perfluoroalkoxy (PFA) fluoropolymer. The motor protection bag is held in place along the exterior surface of the motor with a plurality of clamps that prohibit the migration of fluid between the exterior of the motor and the motor protection bag.12-08-2011
20110286866AC Power Unit Operating System For Emergency Vehicles - An AC operating system has an electrical distribution panel; a variable frequency drive control unit having a first variable frequency drive and a second variable frequency drive; a hydraulic oil heat exchanger; and a hydraulic power unit. The hydraulic power unit includes a housing having a first electric motor connected to the first variable frequency drive and a second electric motor connected to the second variable frequency drive. A first pump and valve assembly is connected to the first electric motor and a second pump and valve assembly is connected to the second electric motor. A motor start command is transmitted from the electrical distribution panel to at least one of the variable frequency drives. The variable frequency drive controller ramps up power to the selected motor to begin rotation of the motor to a predetermined operating speed in a predetermined amount of time.11-24-2011
20110286867Mud Pump - A mud pump is provided that includes a pump shaft having substantially circular eccentric lobes. Each lobe is rotatably mounted in a connecting rod that, in turn, moves a slide in a horizontal and linearly manner. A piston rod is operatively couples a pump module to one or both sides of each slide frame and a pump module. As the pump shaft turns, each lobe causes the slide to move side to side. As the slide moves side to side, each piston rod operates a pump module whose outputs can be coupled to a common manifold.11-24-2011
20110293448RESIN INJECTION MOLDED ROTARY MEMBER - A resin injection molded rotary member having an insertion hole into which a shaft member is inserted, the resin injection molded rotary member rotating integrally with the shaft member inserted in the insertion hole or rotating relative to the shaft member, includes a central rotation axis, first and second shaft support portions positioned at respective end portions in a direction of the central rotation axis to be in contact with the shaft member, and an intermediate portion arranged between the first and second shaft support portions, the resin injection molded rotary member (X) including a thickness defined between outer and inner surfaces in one of radially outward directions from the central rotation axis, the thickness of the resin injection molded rotary member being configured so that a thickness of the intermediate portion is smallest at a position adjacent to the first shaft support portion or the second shaft support portion.12-01-2011
20120014819ELECTRIC PUMP - An electric pump which includes a rotor rotationally supported by a housing at a rotation shaft, a stator positioned at an outer side in radial direction of the rotor and fixed to the housing, a pump portion for taking in and discharging fluid in response to a rotation of the rotor, and a can positioned in between the rotor and the stator for preventing the fluid in the pump portion from flowing into the stator. The can possesses conductivity. The stator is grounded via the can.01-19-2012
20120014818FAN STRUCTURE - A fan structure includes a frame having an inner surface, a permeable element covering the inner surface of the frame, a coil surrounded by the permeable element and a rotor assembly disposed rotatably in the frame. The rotor assembly includes a plurality of blades coupled to a shaft and a permanent magnet enclosing the blades and facing the coil. The rotor assembly rotates along the shaft to generate airflow by means of the electromagnetic effect between the permanent magnet and the coil.01-19-2012
20110268593ELECTRIC DEVICE MOUNTED IN ELECTRIC COMPRESSOR - An electric device includes: a circuit board arranged in cooling medium in a housing and having an electric element and an external coupling electrode, wherein the electric element is sealed in and mounted in a substrate, and the electric element is electrically coupled with the external coupling electrode; an external coupling terminal electrically coupled with the external coupling electrode; and a separation member for separating the external coupling terminal and a connection portion between the external coupling electrode and the external coupling terminal away from the cooling medium.11-03-2011
20120189473SYSTEMS, APPARATUSES AND METHODS FOR THE TRANSMISSION OF ENERGY AND POWER - Systems and apparatuses for delivering power and energy using deflecting beams or other oscillating members motivated to oscillate a beam assembly using an eccentrically balanced rotating body that induces deflections in the elastic beam or other oscillating member. One or more rotors may be used on the elastic beams and a mechanical output or outputs are connected to the elastic beams. The rotating body is advantageously maintained in rotation by pulses of electro-magnetic force. One or more outputs may be used to drive heat pumps, compressors, pumps or other equipment to assist in independent energy systems.07-26-2012
20110194955ELECTRIC FAN - An electric fan is provided, including a labyrinth structure with increased performance of preventing entry of a liquid into a receiving space to receive a stator and a rotor. A clearance is defined between an opposed wall portion of a base and an opposed wall portion of an impeller body, which are opposed to each other in an axial direction of a rotary shaft, to form a labyrinth structure. The opposed wall portion of the base and the opposed wall portions of the impeller body are shaped to form a volume expanding portion within the clearance. The volume expanding portion is constituted from a groove portion for expanding the clearance, having a volume larger than other portions within the clearance.08-11-2011
20130216407CENTRIFUGAL PUMP - A centrifugal pump has at least one impeller, a pump housing and an electrical motor. The pump has a Q-H pump curve having a head H08-22-2013
20090041599ELECTRO-HYDRAULIC ACTUATOR MOUNTING - An electro-hydraulic actuator includes a hydraulic pump, an electric motor operatively connected to the hydraulic pump and operable for driving the pump, an actuator moveable in response to fluid flow from the pump, and a housing for the pump, electric motor and actuator. The housing has a base member that is adapted to be modified into various configurations for forming an attachment interface for mounting of the electro-hydraulic actuator.02-12-2009
20090041598ELECTRIC COMPRESSOR - An inverter-integrated or an inverter-separated electric compressor has a control device. The control device estimates a compressor suction pressure based on the temperature of the power element of the inverter, or directly measures the compressor suction pressure by a sensor, or estimates the compressor suction pressure based on a compressor suction temperature or on a compressor housing temperature. Further, the control device calculates a motor torque based on a motor rotational speed, a motor phase current, and a motor phase voltage, estimates a compressor discharge pressure based on the compressor suction pressure and the motor torque, and estimates a compressor discharge temperature based on the compressor suction pressure and the compressor discharge pressure. An electric compressor having a discharge temperature detection means in place of a conventional thermal protector can be realized.02-12-2009
20110194954ELECTRIC PUMP UNIT - An electric pump unit includes: a unit housing; a bearing unit provided within the unit housing; a rotary portion; and a motor stator fixed to the unit housing. The rotary portion includes: a pump driving motor shaft supported by the bearing unit such that an axial position of a center of gravity of the rotary portion falls within an axial range of the bearing unit, and a motor rotor. The motor rotor includes: a disc portion which extends radially outwards from an axial end portion of the motor shaft; and a cylindrical portion which extends from an outer circumferential portion of the disc portion towards the other axial end side and surrounds an outer circumference of the bearing unit.08-11-2011
20080260555WASHER FLUID PUMP - In a washer fluid pump (10-23-2008
20100129237FLUID PUMP SYSTEM - A fluid pump system comprises an electrical drive unit and a rotary pump comprising a rotatable shaft and a drive element formed from a number of impellers attached to the shaft for causing flow within a process fluid. The electrical drive unit comprises an electrical stator and an electrical rotor attached to the shaft via a coupling, the electrical stator being disposed adjacent to the electrical rotor. The electrical stator is disposed within a first casing and the rotary pump and the electrical rotor are disposed within a second casing. The first casing contains a first fluid and the second casing contains a second fluid.05-27-2010
20100329906MOTOR FOR COMPRESSOR AND HERMETIC COMPRESSOR HAVING THE SAME - Disclosed are a motor for a compressor and a hermetic compressor having the same. An aluminum coil cheaper than a copper coil is used in the motor for the compressor, a ratio between the aluminum coil and a stator core is set, and sectional areas of main and sub slot portions of the stator core and the numbers thereof are adjusted to be suitable for usage conditions, whereby fabricating costs of the motor for the compressor and the hermetic compressor can drastically be reduced and efficiencies thereof can be improved.12-30-2010
20110229354FAN COMPRISING ANTI-DEFLAGRATION HOUSING - The fan comprises a first electromechanical module including a wheel supported by a shaft coupled to a driving motor, a second mechanical module including a body delimiting a space for receiving the first electromechanical module in which the wheel and the driving motor are received, and a third electronic module including a plurality of electronic components. The third electronic module includes a housing in which the plurality of electronic components is housed, the housing also comprising a deflagration protection exhaust comprising an upper wall and two inclined walls extending on either side of the upper wall so as to form a space extending substantially axially between the upper surface of the housing and the upper wall in order to allow the discharge of overpressures in case of deflagration.09-22-2011
20090087322ELECTRIC COMPRESSOR - The present invention has an object to provide an integrated electric compressor further downsized. An inverter control apparatus comprises: a power board 04-02-2009
20120107154Soft-Start Hermetic Compressor - The present invention relates to a hermetic compressor (05-03-2012
20090263260INVERTER DEVICE - The inverter device contains the following structure: an inverter circuit which has upper-arm switching elements that are connected on a positive side of a DC power source and lower-arm switching elements that are connected on a negative side of the DC power source; a current sensor that detects current flowing between the DC power source and the inverter circuit; and a control circuit that controls the inverter circuit by a PWM driving so that the inverter circuit outputs AC current to the motor. The control circuit provides a carrier cycle with a first correction and provides the successive cycle with a second correction, by which the current sensor can detect phase current of the motor. A ripple current caused by the first correction and a ripple current caused by the second correction are opposite in polarity.10-22-2009
20090202369Methods and Systems for Fluid Control - A magnetically coupled fluid actuator for microfluidic applications which affords the actuated fluid some degree of separation from the drive mechanism, increasing biocompatibility and making part of the device potentially disposable.08-13-2009
20090136369HERMETIC COMPRESSOR - This hermetic compressor includes a regulation mechanism, which is arranged between a lower washer and an upper end face of a bearing, for regulating a movable distance in a thrust direction of the lower washer so that the movable distance can be shorter than clearance between an inner diameter of the lower washer and an outer diameter of a main shaft portion. It is possible to prevent the inner diameter of the lower washer from coming into contact with the outer diameter of the main shaft portion by this regulation mechanism.05-28-2009
20120269660ELECTRIC MOTOR AND ELECTRIC SUBMERSIBLE PUMP - In accordance with one aspect of the present invention, an electric motor is provided that includes a housing, a stator, and a rotor, wherein the stator and the rotor are disposed within the housing. The housing, the stator, and the rotor define an internal volume within the housing, said internal volume configured to receive a dielectric fluid. The stator includes a winding including an electrical conductor disposed within a porous ceramic insulating layer, said porous ceramic insulating layer being in fluid communication with the internal volume. An electric submersible pump system is also provided.10-25-2012
20090285702COMPRESSOR - A discharge port of a compression element is positioned inside an outer circumferential surface of a stator, as seen looking in a direction of a rotation axis of a shaft, and overlaps the stator, as seen looking in a direction orthogonal to the rotation axis of the shaft. Accordingly, refrigerant gas discharged from the compression element can be made to flow mainly into spaces inside the outer circumferential surface of the stator.11-19-2009
20090285701HERMETIC TYPE COMPRESSOR - A hermetic type compressor is provided in which suction port is offset arranged in the rotating direction side of rotor from the upstream of suction port with respect to the flow of the cooling medium at the front of suction port with respect to opening of suction tube, so that low-temperature cooling medium is supplied from the upstream of suction port with respect to the flow of the cooling medium at the front of suction port, the low-temperature cooling medium is efficiently suctioned from suction port, and the low-temperature cooling medium is supplied to cylinder.11-19-2009
20090104054LIQUID FLOWING DEVICE - A liquid flowing device includes: a plate-like vibration body; and a driving section that vibrates the vibration body in a thickness direction, wherein at least a portion of an end section of the vibration body in an in-plane direction continuously becomes thinner toward an end of the vibration body.04-23-2009
20090291002INTEGRATED ELECTRIC COMPRESSOR - There is provided an integrated electric compressor that can be made small in size while reducing radio noise effectively. In an inverter of the electric compressor, a snubber circuit 11-26-2009
20090291001CENTERING COUPLING FOR ELECTRICAL SUBMERSIBLE PUMP SPLINED SHAFTS - An electrical submersible well pump assembly having a pump, a pump motor, and a seal section. The motor drives the pump via shafts rotatingly coupled with a coupling assembly. The coupling assembly includes an alignment device that maintains the shaft ends in coaxial alignment. The alignment device compressibly engages one or both of the shafts. The alignment device may be an elongated member having slots cut along its length on one or both ends configured to compress when inserted into a bore coaxially formed into the shaft ends within the coupling assembly.11-26-2009
20120294738ROTOR FOR A WIND TURBINE - The invention relates to a rotor for a wind turbine of the type having a rotor hub (11-22-2012
20110076168PORTABLE INLINE PUMP KIT - A portable inline pump kit is provided featuring a pump having a fluid output port configured to pump fluid, and having a quick disconnect power input connection to couple the pump to a source of power; a portable battery or battery pack having a power connection to be coupled by wiring to the pump; a connector having a bullet connector to couple to the quick connect power input connection of the pump, and having another bullet connector to couple to the power connection of the portable battery or battery pack; an alligator style battery connector having a bullet connector to couple to the input connection of the pump, and having a pair of alligator style battery clips to couple to terminals of a battery, including a car or boat battery; a cigarette lighter connector having a bullet connector to couple to the power input connection of the pump, and having a cigarette lighter power adapter to be coupled to a remote cigarette lighter in, e.g. a boat, a car; and a carrying case having a top case portion hingeably coupled to a bottom case portion, wherein one case portion is configured to receive, frictionally engage and store one or more of the pump, the portable battery or battery pack, the connector, the alligator style battery connector or the cigarette lighter connector, and wherein the other case portion is configured to receive, frictionally engage and store the one or more of the pump, the portable battery or battery pack, the connector, the alligator style battery connector or the cigarette lighter connector not being stored in the one case portion.03-31-2011
20110206543Fuel Pump Module with Driver Equipped Inside Fuel Tank - Provided is a fuel pump module used for a car, and more particularly, to a fuel pump module with a driver equipped inside a fuel tank capable of solving a problem of space limitation due to the installation of the driver by disposing the driver for controlling a BLDC fuel pump between a flange and a reservoir and mounting it in the fuel tank, minimizing the degradation in performance of the BLDC fuel pump caused by voltage drop and efficiency degradation due to a wire by reducing a length of a wire for electrically connecting the driver with the BLDC fuel pump, and achieving a sufficient heat radiation effect by directly transferring the heat energy generated from electrical devices such as FET, MCU, or the like, mounted in the driver to the fuel in the fuel tank through the case cover.08-25-2011
20110200466Compact Structure For An Electric Compressor - The invention relates to a system and method of providing a compressor mechanism having a front housing, center housing and rear housing. The center housing includes an integrated compressor bearing support and compressor base surface that divides the housing into cantilevered wall sections. The system and method constructed in this manner provides a compact structure for an electric compressor with the ability to reduce noise vibration harshness.08-18-2011
20110076166Turbo Charger II - A turbocharger includes a compressor arrangement for compressing fresh air for internal combustion engines, containing a compressor wheel as well as an electric motor with a rotor and stator. A rotor magnet of the rotor is designed such that it is partially or completely integrated into the compressor wheel, and the smallest diameter of the stator is 1.5- to 8-times the size of the largest outer diameter of the rotor. The turbocharger has a very spontaneous response behaviour in the transient range, as well as the possibility of an exact real-time regulation of the mass flow. It furthermore renders possible the energy recovery and this contributes to increasing the total efficiency.03-31-2011
20100061868MOTOR AND COMPRESSOR - A motor includes a rotor and a stator surrounding an outer circumferential side of the rotor. The rotor includes a rotor core, a plurality of magnets, a plurality of holes, a plurality of tightening members and a plurality of fluid passages. The rotor core has layered electromagnetic steel sheets with the magnets embedded in the rotor core along an axial direction and placed in a generally regular polygonal shape along a circumferential direction. The holes are formed axially through the rotor core. The holes are arranged radially inside vertices of the generally regular polygon shape formed by the magnets adjacent the vertices. The tightening members are inserted through at least parts of the holes to tighten the rotor core. The fluid passages are disposed between the holes of the rotor core and extend axially through the rotor core.03-11-2010
20100135830ROTATING ELECTRIC MACHINE AND COMPRESSOR - A rotating electric machine for a compressor includes a case, a plurality of teeth, coils and insulating films. The teeth are circumferentially arranged around a predetermined axis forming a center of the teeth. Each tooth has a first end disposed radially at an opposite side thereof from the predetermined axis. The a back yoke has a circular outer periphery, and a cylindrical inner periphery connecting the first ends of the teeth. The outer periphery has a plurality of concave parts opening radially inwardly toward the teeth at positions overlapping with the teeth as viewed radially. A minimum distance measured from an exposure surface of each tooth to the concave part overlapping therewith is smaller than a radial width of the back yoke at a portion where the concave parts are not provided. The exposure surfaces extend radially inwardly of the inner periphery.06-03-2010
20080240945Motor/Pump Unit - A motor/pump unit, in particular for a servo-steering system, includes a pump housing and an intermediate housing. A pump having a first pump shaft is held in the pump housing. The pump housing and the intermediate housing are connected with each other via a flange, and the first pump shaft is mounted in the flange.10-02-2008
20110200465Motor direct driven compressor system - A motor direct driven compressor system includes a motor, a coupling and a compressor, and the coupling is coupled between the motor and the compressor, and a second assembling portion, a coupling portion and a metal plate of the coupling are used for connecting a driving shaft of the motor and a transmission shaft of the compressor. With this design, the driving force of the motor can be transmitted to the compressor and provided for the operation of the compressor. In addition, errors produced by the rotation and transmission during the transmission process can be minimized, so that the compressor can be operated accurately and normally.08-18-2011
20080279701External hydraulic pump for motor vehicle transmission - This invention pertains to a motor vehicle having a standard drive train including an engine, a torque converter and a transmission, in which the hydraulic fluid required for proper operation of the torque converter and transmission is supplied by an externally mounted, electrically operated pump, with associated fluid storage tank and heat exchanger and requisite fluid circuitry. The torque converter may be offset from the central axis of the engine and transmission, and driven in the offset position by mechanical means, such as a chain or gearing.11-13-2008
20080286130Fan impeller - A fan impeller having fan blades, a base plate, a support ring and fasteners to releasably hold the fan blades between the base plate and the support ring. The base a plate includes channels each having two or more sockets that receive and releasably seat at least a portion of the fan blade. The position of the fan blade relative the axis of rotation of the impeller can be selected from the two or more sockets. The support ring includes grooves in which at least a portion of the fan blade releasably seats to hold the fan blades static relative the base plate and the support ring. The fasteners can extend between the base plate and the support ring to releasably hold the two or more blades.11-20-2008
20120294739IMPELLER, ELECTRIC AIR BLOWER USING SAME, AND ELECTRIC CLEANER USING ELECTRIC AIR BLOWER - An impeller of the present invention includes a front surface shroud including an air intake port; a back surface shroud provided facing the front surface shroud; a first inducer provided between the front surface shroud and the back surface shroud and including a plurality of first blade sections provided around a first hub portion; a second inducer including a plurality of second blade sections connected to the first blade section of the first inducer and provided around a second hub portion; and a plurality of blades connected to the second blade section of the second inducer. A multi-blade structure of the inducer thus can be realized, and an impeller of high performance and low noise can be provided.11-22-2012
20080247888Hermetic Compressor - A hermetic compressor has a bipolar permanent magnet motor where permanent magnet (10-09-2008
20100322794CENTRIFUGAL PUMP - A centrifugal pump has a pump unit and a drive unit. The pump unit includes a volute and an impeller disposed in the volute. The drive unit has a stator and a rotor having a shaft. The volute includes an inlet, an outlet and a chamber in communication with the inlet and outlet. The inlet is coaxial with the chamber. The shaft of the rotor extends into the chamber of the volute and the impeller is attached to and driven by the shaft. The volute further includes a baffle installed in the inlet. The baffle includes a guide plate angled to the axis of the inlet.12-23-2010
20100322793MOTOR AND COMPRESSOR - A motor for a compressor includes a rotor and a stator disposed radial outside of the rotor. The stator includes a stator core having oppositely facing axial end faces, insulators disposed so as to face the end faces, and coils wound on the stator core and the insulators. Each of the insulators has an annular part, a plurality of teeth protruding radially inwardly from an inner circumferential surface of the annular part at specified circumferential intervals, an outer circumferential wall having one end fixed to an end face of the annular part, and protrusions disposed on an outer circumferential surface of an outer circumferential wall of an insulator. At least one lead wire of the coils is drawn out to an outer circumferential side of the outer circumferential wall, guided along the outer circumferential wall, and passed on a side of the protrusions facing the stator core.12-23-2010
20120294737AUTONOMOUS SELF-POWERED SYSTEM FOR REMOVING THERMAL ENERGY FROM POOLS OF LIQUID HEATED BY RADIOACTIVE MATERIALS, AND METHOD OF THE SAME - An autonomous self-powered system for cooling radioactive materials comprising: a pool of liquid; a closed-loop fluid circuit comprising a working fluid having a boiling temperature that is less than a boiling temperature of the liquid of the pool, the closed-loop fluid circuit comprising, in operable fluid coupling, an evaporative heat exchanger at least partially immersed in the liquid of the pool, a turbogenerator, and a condenser; one or more forced flow units operably coupled to the closed-loop fluid circuit to induce flow of the working fluid through the closed-loop fluid circuit; and the closed-loop fluid circuit converting thermal energy extracted from the liquid of the pool into electrical energy in accordance with the Rankine Cycle, the electrical energy powering the one or more forced flow units.11-22-2012
20080219867Electric motor and electric pump unit - The invention provides an electric motor including a tubular insulator that insulates coils of each of U, V, and W phases that makes a rotor rotated by an electromagnetic force, and a stator core around which the coils are wound; and a plurality of busbars that are fixed to the insulator to relay feed of power to the coils that constitute each phase. Ring-shaped terminals directly connected to an external driving circuit board for controlling a driving current leading to each phase of the coils, without via separate connecting members, are integrally formed in the busbars, respectively.09-11-2008
20130011279SECURE CONNECTION TERMINAL FOR HERMETIC COMPRESSOR - A sealed compressor has an electric motor driving a compressor pump unit, and a shell enclosing the electric motor and compressor pump unit. An electrical connector with the shell supplies electrical power to the motor. A terminal housing is mounted to an outer surface of the shell, and a terminal plug is received within the terminal housing. The terminal plug has electric connections to connect into the electric connector within the shell. The housing includes a cover plate enclosing a chamber for the housing and which receives the terminal plug. A spring extends from the terminal plug, and reacts against a surface of the cover to bias the terminal plug to maintain the electric connection between the terminal plug and the electrical connector in the shell.01-10-2013
20110223045MOTOR, MOTOR UNIT, BLOWER, AND ELECTRIC APPARATUS - A stator core is formed of a main core including a first segment core, second segment core, and plate body, and a third segment core (I-shaped core). A rotor is disposed in a rotor insertion hole of the stator core, and an output shaft of the rotor is supported by a bearing unit. A resin molded body covers a winding of an exciting section of the motor, a circuit wiring board, and a part of a power supply connecting body. The resin molded body also covers a part of the third segment core (I-shaped core). A rotary vane or the like is mounted near the tip of the output shaft, and a blower or the like is formed.09-15-2011
20090162219Sewage Pump - A sewage pump has a shaft with an upward rotor penetrating a dividing ring base at a top end of the combination housing to integrate with a centrifugal switch. Two opposite sides inside the dividing ring base respectively have supporting elements to make a start capacitor and a run capacitor been supported therebetween so that each element within the combination housing on the dividing ring base has optimum orientation and arrangement.06-25-2009
20090129954Electric Compressor - An electric compressor incorporating an electric motor for driving a compression mechanism and containing, in a compressor housing, a joint between an external terminal for supplying power to the electric motor and an end of a wire from a stator of the electric motor. The electric compressor has a vibration proof means mechanically preventing at least one of disconnection, electrical instantaneous interruption, and damage on an insulating member that are caused by vibration at the joint and/or the vicinity of the joint. The vibration proof means can adopt various structures. When such a mechanical vibration proof means is provided in the electric compressor, vibration proof performance can be enhanced at the joint of a motor terminal with good productivity achieved, and occurrence of disconnection and instantaneous interruption of the terminal joint can be prevented.05-21-2009
20120070322ELECTRIC MOTOR-DRIVEN COMPRESSOR FOR VEHICLE - Disclosed is an electric motor-driven compressor having a structure capable of improving the performance of an electric motor of the electric motor-driven compressor for the vehicle. The electric motor-driven compressor has an angle which is formed by two straight lines passing through a center of the rotor and making contact with both end portions of one permanent magnet, and is in a range of about 48.7° to about 51°. The cogging torque and the torque ripples are minimized, the power of the electric motor is improved, and the electric motor is easily controlled.03-22-2012
20120070321COMPRESSOR FOR VEHICLE - Disclosed is a motor-driven compressor for a vehicle adapted to fix a connector of an electric motor for a vehicle compressor. The compressor for a vehicle includes a rotor configured be rotated by an electromagnetic force generated when a current flow through a coil, a stator having at least one connector fixing slot, and a connector having a body fixed to the connector fixing slot.03-22-2012
20080317613Compressor - A compressor includes a hermetic container having resonant frequency F, a compression element operable to compress refrigerant, an electric element including a shaft rotating as to drive the compression element at a predetermined operation frequency, and a rolling bearing accommodated in the hermetic container. The rolling bearing supports the shaft rotatably. The rolling element includes plural rolling elements. The predetermined operation frequency of the electric element is different from operation frequency N expressed by a following formula: N=2·F/(n·R) where n=1, 2 and R is a number of the plurality of rolling elements. This compressor is prevented from generating large noise.12-25-2008
20130216408TURBOCHARGER SYSTEM - A turbocharger system for achieving both improvement of fuel efficiency by engine downsizing and excellent shock loading resistance. The system includes: a power-assisted turbocharger mounted on a vehicle having an accessory and including a turbine disposed on an exhaust passage of an engine and driven by exhaust, a compressor disposed on an intake passage and driven by a rotational torque of the turbine, and an electric motor that assists a drive force of the compressor; and an electric motor control unit that drives the electric motor when the accessory is being driven.08-22-2013
20120087813LEAD WIRE ENGAGING STRUCTURE AND ELECTRIC APPARATUS - A lead wire engaging structure includes a first engaging portion and a second engaging portion. One end of the first engaging portion and one end of the second engaging portion are integrally provided at a first mounting portion integrally provided at a second casing wall portion. The first engaging portion forms a first gap between the first engaging portion and the second casing wall portion, and engages four lead wires in cooperation with the second casing wall portion. The first gap allows the four lead wires to pass therethrough. The second engaging portion forms a second gap between the second engaging portion and the first engaging portion. The second gap allows the four lead wires to pass therethrough. The other end portion of the first engaging portion and the other end portion of the second engaging portion are coupled to each other by a coupling portion.04-12-2012
20110223044PIEZOELECTRIC ELEMENT DRIVING CIRCUIT - A transformer T09-15-2011
20090010773Pressure Equalizer in Thrust Chamber Electrical Submersible Pump Assembly Having Dual Pressure Barriers - A well pump assembly has a rotary pump with an electrical motor that contains a motor lubricant. A thrust chamber is mounted between the motor and the pump, the thrust chamber containing a thrust chamber lubricant. Seals prevent the entry of thrust chamber lubricant into the motor chamber. A pressure equalizing chamber is mounted to the motor for admitting well fluid. A first pressure barrier in the equalizing chamber equalizes the pressure of the thrust chamber lubricant with that of the well fluid. A second pressure barrier contained within the first pressure barrier equalizes the pressure of the motor lubricant with thrust chamber lubricant.01-08-2009
20090142206HYDRAULIC CIRCUIT OF A SERVO-ASSISTED MECHANICAL TRANSMISSION - A hydraulic circuit of a servo-assisted mechanical transmission, which is provided with a number of hydraulic actuators provided with corresponding actuation chambers adapted to be filled with pressurized oil; the hydraulic circuit is provided with: a number of solenoid valves, each of which is coupled to a corresponding actuation chamber of a hydraulic actuator; a tank, which contains the oil at atmospheric pressure and is provided with an upper loading aperture; the cap, which closes the loading aperture of the tank and is provided with a through venting hole which puts the tank into communication with the external environment; a filtering element, which is coupled to the cap and is arranged under the venting hole; a hydraulic accumulator containing the pressurized oil; and an electric pump which draws from the tank and feeds the hydraulic accumulator.06-04-2009
20090232678HEAT DISSIPATION FAN - An exemplary heat dissipation fan includes a fan housing 09-17-2009
20110142694MOTOR, GAS COMPRESSOR AND AGITATION ELEMENT - The present invention refers to a motor having a constructive arrangement capable of cooling the environment in which said motor is disposed. In a preferred embodiment, said electric motor (06-16-2011
20090232677METHOD OF PRODUCING A MINI FAN AND A MINI FAN PRODUCED ACCORDING TO SAID METHOD - The invention relates to a method of producing a mini-fan that has a fan wheel equipped with fan blades (09-17-2009
20110142693BEARING STRUCTURE AND SCREW PROVIDED WITH A BEARING STRUCTURE OF THIS TYPE - A bearing structure between a rotor (06-16-2011
20090208353Motorized fan with whimsical figure appearance - A motorized fan with a whimsical figure appearance that has an electric fan and a body member, and it may also have appendages and a support base. The body member is connected to the electric fan such that the electric fan is generally located within the body member. The appendage may represent the arm, leg, tail, neck, wing, head, tongue, quill, antenna, or other body part that is connected to the body of the whimsical figure. There may be a plurality of appendages. An appendage may further contain additional embellishments to represent other features of the whimsical figure's body, such as the brush at the end of a tail, feet, hooves, the figure's head, fins, flippers, hands, ears, horns, feathers, or whiskers. Preferably, the whimsical figure is the characterization of an animal.08-20-2009
20090104055ELECTRIC COMPRESSOR MANUFACTURING METHOD AND ELECTRIC COMPRESSOR - The present invention aims to achieve a simplest possible transfer of components in an assembling process while almost perfectly preventing dirt, oil and the like from producing an adverse effect on a motor control circuit. A compressor main body assembly A is assembled by fitting, to a rear housing member 04-23-2009
20090246047Integrated-inverter electric compressor - An integrated-inverter electric compressor whose grounding effect and grounding reliability are increased by reliably grounding an inverter device to a housing and in which the size the inverter device are reduced by simplifying the grounding structure is provided. The integrated-inverter electric compressor includes an inverter device provided in an inverter container on the outer circumference of a housing. The inverter device includes an inverter module formed by integrating a power-related metal substrate and a resin case and is provided with a control-related substrate on the upper surface of the inverter module; the resin case is integrated with mounting legs provided at a plurality of locations on the circumference; the mounting legs are grounded to the power-related metal substrate and the control-related substrate; and grounding terminals, which frame-ground the substrates to the housing, are insert-molded in such a manner that the grounding terminals are securable to the inverter container with screws.10-01-2009
20100150749CENTRIFUGAL PUMP WITH OFFSET VOLUTE - A pump includes: (a) an elongated pump housing having first and second ends; (b) a primary impeller mounted in the housing for rotation about an axis, the impeller comprising a plurality of vanes whose outer tips define an impeller plane; (c) an inlet disposed in fluid communication with the primary impeller; and (d) an annular volute housing communicating with the primary impeller and with an outlet, where the volute housing is axially offset from the impeller plane.06-17-2010
20110229353MOUNTING ARRANGEMENT FOR AN OIL PUMP IN A REFRIGERATION COMPRESSOR - The refrigeration compressor includes a cylinder block carrying a crankshaft and a stator of an electric motor, whose rotor is mounted to the crankshaft; and an oil pump presenting: a tubular sleeve affixed to the crankshaft or to the rotor and having a pump body internal to the tubular sleeve and carried by the cylinder block or by the stator. A fixation rod is superiorly articulated to the cylinder block or to the stator and has a lower portion angularly and freely displaced orthogonally to the articulation axis and around which the lower end portion of the pump body is axially retained and slidably mounted, orthogonally and coplanar to the rotation axis of the rotor. The tubular sleeve is provided with an upper tubular portion having a circumferential groove, which fits and retains, rotationally and axially, a tubular metallic connector telescopically mounted and retained to the rotor or to the crankshaft.09-22-2011
20090116981FLUID PUMP - The invention relates to an electric fluid pump with a semi-axial construction, wherein the pump housing (05-07-2009
20100150751Electrical Submersible Pump System Connection Adapter - An electrical submersible pumping assembly having a seal section and a motor section, and seals that prevent leakage from the seal section and the motor section during assembly. The seals cooperate with a coupling assembly for coupling together shafts from both the seal section and motor section. The coupling assembly outer diameter enlarges at a shoulder that circumscribes its outer surface. In one example, the seal that prevents leakage from the seal assembly provides a sealing interface around the larger diameter portion of the coupling assembly, that is removable by sliding the coupling so its smaller diameter portion is adjacent the seal assembly. The motor section is sealed by another sealing assembly that includes a body that circumscribes the motor shaft to define an annulus, a sealing disk selectively fills the annulus. The sealing disk can also be slid away from within the body while coupling the shafts with the coupling assembly.06-17-2010
20120141307ELECTRIC COMPRESSOR - An electric compressor includes a compression mechanism, an electric motor for driving the compression mechanism, and a drive circuit for controlling the electric motor. The drive circuit includes an external connector made of an insulating material. The external connector has a connecting terminal that is constructed to be electrically connected to an external power source. The drive circuit further includes a circuit board electrically connected to the connecting terminal and a filter element electrically connected to the circuit board. The drive circuit is accommodated in a metal housing. The filter element is integrally formed with the external connector such that contact of the filter element with the housing is prevented.06-07-2012
20090116980Air and water conditioner by two separated air flows - This device is a water adiabatic evaporative cooler of two separated air flows contained in a cylindrical body, there is the humid peripheral flow which comprises the components of the water evaporation system, the other is the central flow designated as the ambient dry flow where the air current produces the cooling effect. The two air flows are generated by a single axial air blower, the central zone of the air blower drives the atmospheric air through a central concentric body containing an air to water heat exchanger, this is the air to be directed to the controlled ambient, while the peripheral part of the single axial blower drives the air through an external annular adiabatic evaporation chamber, from here the cool condensed moisture goes to the heat exchanger while residual humid air is evacuated to the external atmosphere.05-07-2009
20100260623FLUID TRANSPORTING DEVICE USING CONDUCTIVE POLYMER - A fluid transporting device is provided with a pump chamber that has a pump function for sucking and discharging a fluid, and is filled therein with the fluid, a casing unit which forms one portion of a wall surface of the pump chamber, a diaphragm which is formed by a conductive polymer film that is subjected to electrochemomechanical expansion and contraction, and forms one portion of the wall surface of the pump chamber, an electrolyte chamber that contains an electrolyte therein, with one portion of the electrolyte being made in contact with the diaphragm, a power supply that applies a voltage to the diaphragm, and a pressure maintaining unit that maintains a pressure to be applied to the diaphragm.10-14-2010
20100183456MICRO-FLUIDIC SYSTEM - The present invention provides a micro-fluidic system, a method for manufacturing a micro-fluidic system and a method for controlling or manipulating a fluid flow through micro-channels of such a micro-fluidic system. The inner side of the wall of the micro-channel is provided with actuator elements. These actuator elements have a shape, an orientation and a geometry that includes a varying cross sectional area along a longitudinal axis. The varying cross sectional area includes one or more openings along the longitudinal axis of the actuator element. The actuator elements can change in shape and orientation as a response to an external stimulus. Through this change of the shape and orientation, the flow of a fluid through a micro-channel may be controlled and manipulated.07-22-2010
20100221128Compact Dry-Running Piston Compressor - A compact dry-running piston compressor includes at least one cylinder for the compression of air by a corresponding piston, which may be driven by an electric motor with a crank drive made up of a crankshaft and connecting rod. The crank drive is rotatably mounted in an oil-bath-free compressor housing on pre-lubricated roller bearings and generates an internal cooling air flow inside the housing due to its movement cycle. The compressor housing includes two housing sections separated by a partition wall, in order to accommodate the crank drive within the first housing half and the electric motor in the second housing half. A roller bearing common to the crank drive and the electric motor is arranged in the partition wall lying in the cooling air flow passing through the first housing half.09-02-2010
20100150750MOTOR AND COMPRESSOR TECHNOLOGY - An interior permanent magnet type brushless direct current (BLDC) motor includes a stator having a plurality of slots. The BLDC motor also includes a rotor positioned in the stator and that is rotatable with respect to the stator. The rotor has a rotor core, a plurality of permanent magnets inserted in the rotor core, a plurality of vent holes positioned between the center of the rotor core and the permanent magnets, and a plurality of coupling holes positioned between the permanent magnets and a periphery of the rotor core.06-17-2010
20100254836Oil-Cooled Screw Compressor - In an oil-cooled screw compressor comprising, a compressor body including a pair of a male rotor and a female rotor, a motor including a stator and a motor rotor connected to one of the male and female rotors, and an oil separator container for gathering the oil from a mixture of the gaseous manner and oil to restrain the oil from proceeding with the compressed gaseous matter after the mixture of the gaseous manner and oil is discharged from the pair of male and female rotors, a rotational axis of the motor rotor and the rotational axis of the one of the male and female rotors are coaxial with respect to each other.10-07-2010
20110058967MAGNETIC INDUCTOR ROTARY MACHINE AND FLUID TRANSFER APPARATUS THAT USES THE SAME - A high-efficiency magnetic inductor rotary machine in which eddy current loss is reduced even if driven at super-high-speed rotation, and a fluid transfer apparatus that uses the same. In the magnetic inductor rotary machines, first and second stator cores are disposed coaxially such that circumferential positions of teeth are aligned, and first and second rotor cores are fixed coaxially to a rotating shaft such that salient poles are offset by a pitch of half a salient pole circumferentially, and are disposed on an inner peripheral side of the first and second stator cores. A salient pole width of the salient poles of the first and second rotor cores is configured so as to be greater than an opening width of slots of a stator.03-10-2011
20110058966FLUSHING SYSTEM - An apparatus includes a pump, a motor operatively coupled to the pump, and a flushing system. The motor includes a stator and a rotor disposed in a rotor cavity isolated from the stator. The flushing system is operable to provide a flushing medium to the rotor cavity.03-10-2011
20110058964LINEAR MOTOR AND RECIPROCATING COMPRESSOR EMPLOYING THE SAME - There are provided a linear motor for generating a linear reciprocating motion force, and a reciprocating compressor for compressing a refrigerant by employing the linear motor. The linear motor and the reciprocating compressor employing the same can reduce the number of inverter switches by employing a coil unit whose winding method is improved and a power supply apparatus whose connection to the coil unit and other circuits are improved, and can make it easy to control and reduce production costs by simplifying the circuit configuration.03-10-2011
20100239441COMPRESSOR SYSTEM FOR UNDERWATER USE IN THE OFFSHORE AREA - The invention relates to a compressor system (09-23-2010
20100254835SCROLL DEVICE INTEGRATING A FEED PUMP - A scroll device including two coupled stages on a rotary shaft, at both ends of an intermediate electric power device, wherein the first stage is formed by a first pressure variation device of an operating fluid, comprising a scroll case containing a fixed scroll and a mobile scroll relatively to the case, and with admission and outlet ports, and wherein the second stage is a feed pump which pumps the operating liquid and provides it in return.10-07-2010
20110129371CLOSED TYPE COMPRESSOR - A closed type compressor of a low overall height and small vibrations provided with a structure comprising a balancing weight (06-02-2011
20110129367MOTORIZED VACUUM PUMP - A motorized vacuum pump apparatus, may include an electric motor operating in response to an electric signal, a pumping unit connected with a motor shaft of the electric motor, and a sound absorbing unit enclosing the pumping unit and having an inlet for sucking external air, a damping chamber and an outlet, wherein the sound absorbing unit is directly combined with the electric motor, and wherein the external air is compressed and supplied by the pumping unit to the damping chamber and discharged through the outlet such that noise is reduced by damping compressed air in the damping chamber.06-02-2011
20110129368VARIABLE SPEED DRIVE SYSTEM - This disclosure relates to a control system for driving a motor. The motor may include a cut-out circuit. The control system may include a buck-boost circuit to limit the rate of change of an output voltage before the output voltage is applied to operate the motor.06-02-2011
20090041597Combined Seal Head and Pump Intake for Electrical Submersible Pump - An electrical submersible well pump assembly has a motor containing a dielectric lubricant. A seal section is mounted to the motor for reducing pressure differential between the lubricant in the motor and the well bore fluid. The seal section has a head on an end opposite the motor. A pump assembly is mounted to the head of the seal section. An intake is located in the head of the seal section for drawing well bore fluid into the pump assembly.02-12-2009
20100034674ELECTRIC FUEL PUMP CAPABLE OF SUPPLYING FUEL AT HIGH FLOW RATE - An electric fuel pump is disclosed which includes a pump portion, a motor portion, a housing, and a fuel passage. The pump portion pressurizes fuel. The motor portion drives the pump portion. The motor portion includes a rotor with a rotating shaft and a stator that surrounds an outer periphery of the rotor. The housing surrounds, at least, an outer periphery of the stator of the motor portion. The fuel passage, through which the fuel pressurized by the pump portion passes the motor portion, is made up of a clearance between the outer periphery of the stator of the motor portion and an inner periphery of the housing. The clearance extends, at least, in the axial direction of the rotating shaft of the rotor of the motor portion.02-11-2010
20090162221MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a housing having an inlet port, a compression mechanism for compression of refrigerant introduced from an external refrigerant circuit via the inlet port into the housing, an inverter having a heat-generating component, an electric motor driven by the inverter, and a rotary shaft rotated by the electric motor thereby to drive the compression mechanism. The electric motor, the compression mechanism and the inverter are aligned in the housing in axial direction of the rotary shaft. An inlet pipe is connected to the inlet port. The housing has an outer peripheral surface in contact with the inlet pipe. The heat-generating component of the inverter is disposed adjacent to or in contact with the inlet pipe so as to be thermally coupled to the inlet pipe.06-25-2009
20090162220Vacuum pump - A vacuum pump having a vacuum pumping mechanism mounted for rotation by a shaft and a brushless motor for rotating the shaft where the vacuum pumping mechanism comprises a turbo pumping mechanism comprising pumping stages, and a molecular drag pumping mechanism comprising at least one pumping stage, and a shaft supported for rotation by bearings, and where the motor comprises a permanent magnet rotor fixed relative to the shaft and the rotor has four poles and a stator has non-overlapping stator coils.06-25-2009
20090110573Apparatus and Method for Retaining and Isolating Modular Fan and Motor Sub-Assemblies in Air Moving Systems - An air moving system includes an outer housing including a plurality of housing portions, with a first of the housing portions being hingably securable to a second housing portion at a first pivot axis. The air moving system further includes a fan and motor sub-assembly that is operably disposed within the outer housing, and an isolator that is interposed between the outer housing and the sub-assembly, with the isolator being adapted to inhibit vibration transmission from the sub-assembly to the outer housing.04-30-2009
20120244023HYDRAULIC PUMP ASSEMBLY - One embodiment may include a system for distributing torque between front and rear axles of an all wheel drive vehicle and/or between left and right wheels of a two or four wheel drive vehicle comprises at least one limited slip coupling having a disc package and a piston acting thereon, the piston being actuated by a hydraulic pump assembly. This assembly has an electric motor, a hydraulic pump driven thereby, and a centrifugal regulator also driven thereby, the centrifugal regulator controlling a pressure overflow valve, connected to the oil outlet of the hydraulic pump. The assembly specifically comprises an axial piston pump having a piston drum rotatable in a pump housing and containing a number of reciprocable axial pistons, at least one centrifugal lever pivotally attached to the piston drum, and a valve member connected to the centrifugal lever and being arranged for cooperation with the mouth of an oil outlet bore in the piston drum to form the pressure overflow valve.09-27-2012
20120244022ELECTROMAGNETIC PUMP - An electromagnetic pump including a reciprocating piston in a cylinder; an electromagnetic portion that moves the piston forward; a first biasing member that moves the piston backward; a support member that supports the first biasing member and defines a pump chamber together with the cylinder and the piston; an intake valve that is incorporated into the support member, is connected to an intake port and prohibits hydraulic fluid from moving in reverse; and a discharge valve that is connected to a discharge port and prohibits the hydraulic fluid from moving in reverse. The intake valve includes a ball, an opening portion of the intake port, and a second biasing member that presses the ball against the opening portion from a side opposite to a direction in which the hydraulic fluid moves. In the opening member, an inner peripheral surface that receives the ball is formed in a taper shape.09-27-2012
20110129366METHOD FOR WINDING COIL ON OBJECT AND WATER PUMP OF CLUTCH TYPE PROVIDED WITH THE SAME - A method for winding a coil on an object, wherein the coil includes a plurality of first coils and a plurality of second coils, may have winding the first coils on an exterior circumferences of the second coils, wherein an outer circumferences of the respective second coil is enclosed and in contact with outer circumference of at least three first coils, and wherein cross-sectional area of the second coil is smaller than that of the first coil, and wherein the outer circumference of the at least three first coils are in contact each other.06-02-2011
20090068036Compressing diaphragm pump having automatic air expelling and pressure abnormal-preventing features for spray use - The present invention provides a “compressing diaphragm pump having automatic air expelling and pressure abnormal-preventing features for spray use” that comprises a hollow tubular air discharge assembly, having a plunger body and compressed spring disposed therein as well as a air passage pierced at the wall of the water exit port and a air discharge orifice pierced of the central top surface of the air discharge assembly for connecting with the plunger body; When air being mixed within the pressurized water, the resilient force of the compressed spring being bigger than the water pressure of the pressurized water. Thereby, the air mixed in the pressurized water will get into the air passage and pass the plunger opening of the plunger body via through pore, and finally dispelled out of the upper hood via the air discharge orifice of the air discharge assembly.03-12-2009
20090068034PUMPING SYSTEM WITH PRECISE RATIO OUTPUT - A precision pumping system is disclosed. The pumping system includes an electric motor assembly powering a first drive shaft driving a first pump at a first flow rate and powering a second drive shaft driving a second pump at a second flow rate. A proportioned fluid output includes a first fluid pumped by the first pump and a second fluid pumped by the second pump. The pumping system provides a desired ratio of the first fluid to the second fluid at the proportioned fluid output, relatively independently of pressure and flow rate at the output.03-12-2009
20110129365Electric fan - An electric fan has a bracket, a transmission assembly, a linking assembly, a swing object and a fan. The transmission assembly is mounted on the bracket. The linking assembly is connected to the transmission assembly. The swing object is connected pivotally to the linking assembly. The fan is connected to the swing object. The transmission assembly is actuated to drive the fan to swing up and down and provide gentle and sustained airflow so users can feel truly comfortable.06-02-2011
20110110803GAS/FLUID INHIBITOR TUBE SYSTEM - A pump assembly is disclosed. The pump has a suction opening. A motor is configured to drive the pump. The pump includes an inhibitor tube having an outlet configured to be in fluid communication with the suction opening.05-12-2011
20110110804ARMATURE FOR A SOLENOID ACTUATOR - An armature for a solenoid actuator is disclosed. The armature comprises a first face comprising a recess suitable for receiving a biasing spring in use of the armature; a second face opposite the first face; and fluid communication means for providing a fluid flow path through the armature between the recess and the second face in use of the armature. The first face is uninterrupted by the fluid communication means. The invention reduces the risk of cavitation damage during operation of the actuator. In one application, the actuator is used in a fluid pump for a selective catalytic reduction system.05-12-2011
20110033322ELECTRICAL MOTOR ACTIVATION METHOD HAVING LOAD TORQUE ADAPTATION - An electrical motor activation method for an electric motor including a rotor, connected to a motor shaft, and a stator having brushes. The stator comprises multiple commutator laminations for the commutation of windings disposed on the rotor and is activated by a pulsed or linearly controllable power source. The motor shaft is connected to a radially driven load, in particular a pump, which has a nonlinear torque curve via a motor revolution. A waviness signal is obtained from a voltage potential applied to the motor and/or from the motor current and rotor position information is obtained from the curve of said waviness signal.02-10-2011
20110033320PUMP ROTOR FOR A CANNED MOTOR PUMP - The invention relates to a pump rotor (02-10-2011
20110033321STATOR HOUSING ASSEMBLY FOR A CANNED MOTOR - A stator housing assembly (02-10-2011
20110243769MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a connector to which a first and second conductors are connected, and a connector case receiving the connector. The connector case includes a first case member and a second case member. A seal member is provided between the first and second case members. The first case member has a first sealing surface extending along the periphery of the first case member. The second case member has a second sealing surface extending along the periphery of the second case member and facing the first sealing surface. The seal member includes a main seal portion for sealing between the first sealing surface and the second sealing surface. The main seal portion has a first peripheral seal portion for sealing the periphery of the first conductor inserted therethrough and has a second peripheral seal portion for sealing the periphery of the second conductor inserted therethrough.10-06-2011
20110243767MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor is to be mounted to a first mounting of a vehicle. The compressor includes a compressor body that is electrically powered to draw in fluid for compression and to discharge the compressed fluid, and a second mounting for securing the compressor body to the first mounting. The second mounting includes a first mounting member having a first mounting hole, a second mounting member provided away from the first mounting member and having a second mounting hole, a resin member integrally formed with the first and second mounting members and provided at least between the first mounting member and the compressor body, a first fastening member inserted through the first mounting hole for securing the first mounting member to the first mounting, and a second fastening member inserted through the second mounting hole for securing the second mounting member to the compressor body.10-06-2011
20110116949STRUCTURE FOR COUPLING ROTARY SHAFTS AND PUMP DEVICE OF ROTARY TYPE - An object of the invention is to provide a structure for coupling two rotary shafts, which can be made smaller in size. A driving shaft for pumps is rotatably supported by a first bearing and a second bearing, while a rotary shaft of an electric motor is rotatably supported by the second bearing and a third bearing. Each one end of the driving shaft and the rotary shaft is inserted into the common second bearing, so that rotation of the rotary shaft is transmitted to the driving shaft.05-19-2011
20110116950INVERTER-INTEGRATED ELECTRIC COMPRESSOR - In an inverter-integrated electric compressor having an inverter unit integrated therein, the inverter unit is provided with a plurality of CAN (Controller Area Network) receiver circuits for CAN communications with a vehicle-side control unit, at least one of the CAN receiver circuits being a high-speed CAN receiver circuit allowing connection with a high-speed CAN bus and at least one of the other CAN receiver circuits being a low-speed CAN receiver circuit allowing connection with a low-speed CAN bus.05-19-2011
20110116948METHOD FOR MANUFACTURING STATOR FOR ELECTRIC WATER PUMP - A method for manufacturing a stator for an electric water pump may be used for manufacturing the stator used in the electric water pump. In the electric water pump which includes stator assembly for an electric water pump, wherein the stator assembly including a plurality of core-insulator assemblies generates a magnetic field according to a control signal and a rotor is rotated by the magnetic field generated at the stator assembly to pressurize coolant, the method for manufacturing the stator assembly may include a) stacking a plurality of pieces made of a magnetic material to form a core stack, b) molding an insulator to the core stack, c) coiling a coil to the insulator to form a core-insulator assembly so as to form a magnetic path, and d) connecting the respective core-insulator assembly in an annular shape in sequence to form the stator assembly.05-19-2011
20110116946FAN BLADE MOUNTING SYSTEM - A ceiling fan (05-19-2011
20110116947Electric water pump - The present invention relates to an electric water pump having improved performance and durability. The electric water pump may include a stator generating a magnetic field according to a control signal, a rotor rotated by the magnetic field, a pump cover having an inlet and an outlet, a body having a front surface forming a volute chamber, a stator chamber, and a rotor chamber, the stator mounted in the stator chamber and the rotor mounted in the rotor chamber, a shaft having a central axis, fixed to the rotor and mounted in the rotor chamber, and an impeller fixed to the shaft so as to rotate together with the shaft, pressurizing the coolant having flowed in through the inlet, and mounted in the volute chamber, wherein the rotor chamber is fluidly connected to the volute chamber, and the stator chamber is fluidly closed and sealed from the rotor chamber.05-19-2011
20110243770ELECTROMAGNETIC MACHINE WITH A FIBER ROTOR - An impeller is provided that may be used in compressors or turbines. In another aspect of the present invention, a fiber or a bundle of fibers is woven to form at least two blades of an impeller. Yet another aspect of the present invention employs a peripheral component woven around impeller blades. An additional conductive fiber or bundle of fibers is woven into the impeller in a further aspect of the present invention. Moreover, an aspect of the present invention provides a chilling system that includes at least one compressor, at least one wave rotor, and a refrigerant.10-06-2011
20110129369LIGHTWEIGHT INFLATION DEVICE - A lightweight inflation device for outputting a low-pressure airflow to inflate an air bladder includes a body defining an airflow chamber and a plurality of air manipulation elements disposed within the airflow chamber. At least one of the air manipulation elements is a rotor including a plurality of blades, and the inflation device includes a driving mechanism operable to rotate the blades about an axis. The inflation device further includes a nozzle operably coupled with the body and defining an air outlet to connect with a valve on the air bladder. The nozzle is shiftable into an operating position in which the air outlet extends beyond an outlet-side axial margin of the body. The nozzle is also shiftable into a storage position in which the air outlet is disposed within the airflow chamber of the body. A method of inflating an air bladder with a portable axial compressor assembly is also disclosed.06-02-2011
20100254833TERMINAL DEVICE FOR ELECTRIC COMPRESSOR - Provided is a terminal device for an electric compressor including: a partition wall arranged between a container part for a compression mechanism drive motor present with a lubricant-containing fluid to be compressed and a circuit part for supplying power to the motor; and a power supply terminal member hermetically extending through the partition wall so as to supply power to the motor. An electric communication portion of the terminal member extending between the two parts is covered with insulating varnish. Even when polyalkylene glycol-based oil is used as the lubricant-containing fluid to be compressed, it is possible to realize an electric compressor terminal device with a simple structure at a low cost which can exhibit a sufficiently high insulation performance.10-07-2010
20110211979COOLING SYSTEM FOR A MULTISTAGE ELECTRIC MOTOR - A multistage electric motor includes a plurality of motor stages connected in series, each motor stage comprising a stator, and a rotor; a plurality of cooling fluid paths, each cooling fluid path forming a recirculating loop independent of the other cooling fluid paths, each cooling fluid path in communication with the stator of one of motor stages; and a cooling fluid flowing through each cooling fluid path, the cooling fluid removing heat from the stator of each motor stage. A submersible pump including the multistage electric motor, and a method of cooling the multistage electric motor are also described.09-01-2011
20110243768MOTOR STATOR AND ROTARY COMPRESSOR - According to one embodiment, a motor stator includes a substantially cylindrical stator iron core and insulators. The stator iron core includes a yoke, teeth, and U-shaped grooves. The U-shaped grooves are formed on the circumference of the yoke in the axial direction. The insulators each include an outer circumference wall, hoisting drums, inner guards, and at least three engagement claws. The engagement claws are located spaced apart in the circumferential direction on the outside of the outer circumference wall and fitted in axial-direction ends of the U-shaped grooves, respectively. One of the engagement claws is arranged such that a first circumferential-direction side portion of the engagement claw is in contact with a first side wall of one U-shaped groove. Another is arranged such that a second circumferential-direction side portion of the engagement claw is in contact with a second side wall of another U-shaped groove.10-06-2011
20110085926MOTOR FOR COMPRESSOR AND HERMETIC COMPRESSOR HAVING THE SAME - Disclosed are a motor for a compressor and a hermetic compressor having the same. An aluminum coil cheaper than a copper coil is used in the motor for the compressor, to thusly reduce a fabricating cost. Also, a ratio of a height of end coil of a coil to an inner diameter of a stator is appropriately designed or a ratio of an entire area of slot portions to the inner diameter of the stator is appropriately designed, and simultaneously a ratio of the inner diameter of the stator to a width of the tooth portion is appropriately designed, so as to previously prevent a deterioration of damping effect, increase in noise, lowering of efficiency, reduction of driven torque, all caused due to the use of the aluminum coil.04-14-2011
20100260624SYSTEMS AND METHODS FOR ENERGIZING AND DISTRIBUTING FLUIDS - The present disclosure provides various pumps and compressors for energizing fluids. In accordance with a preferred embodiment, pumps are provided for compressing hydrogen gas produced by electrolysis at a first location. The pump includes a bore with a piston disposed in the bore, and a magnetic drive external to the bore. The piston is moved through the bore to compress the fluid using permanent magnets or electromagnets. Using the disclosed embodiments, hydrogen compressed at a first location can be directed to a second location, such as a power plant or a fueling station.10-14-2010
20110176942SEALED COMPRESSOR - A hermetic compressor includes a cylindrical hole (07-21-2011
20100040488MOTOR AND ELECTRIC PUMP - In a motor comprising a stator and a rotor disposed in an inner circumference of the stator, the stator comprises a substantially cylindrical stator core and coils made up of wound conductors, and the stator core comprises an outer circumferential portion which constitutes an outer circumferential wall of the stator and an inner circumferential portion round which the conductors are wound. The outer circumferential portion is formed of a first sintered metal made of a powder magnetic material, while the inner circumferential portion is formed of a second sintered metal made of a powder magnetic material, and the first sintered metal is a sintered metal having a higher mechanical strength than the second sintered metal. Additionally, the stator core is formed by diffusion bonding the outer circumferential portion and the inner circumferential portion being bonded together.02-18-2010
20110176941POWER PLUG SYSTEM FOR SUBMERSIBLE PUMP SYSTEM - A power plug system for use with a submersible pump. One embodiment comprises a male plug end, a female plug end, and a plurality of seals. The male plug end comprises a housing and a conductive sleeve. The housing receives an electrically conductive cable and conducts an electric current from the cable to the conductive sleeve. The female plug end comprises a housing, a conductive pin, and a female plug sleeve. The conductive sleeve is radially sealable within the female plug end through a plug end seal of the plurality of seals. The conductive sleeve and the conductive pin are conductively connectable. The female plug sleeve is radially sealable within a complementary plug end through a female plug sleeve seal of the plurality of seals. The conductive pin conductively connects to a conductive lead of the complementary plug end with insertion of the female plug sleeve therein.07-21-2011
20110076169ROTARY COMPRESSOR - The eccentric on the crankshaft of a rotary compressor, as well as the roller that surrounds the crankshaft, is replaced by an elliptical cam that acts as a double eccentric. In this manner, the elliptical cam provides for proper balancing of the crankshaft and other components of the compressor, while eliminating the need to use counterweights. Specifically, the elliptical cam is symmetrical, resulting in equal forces acting on opposing sides of the elliptical cam. This allows the elliptical cam to maintain its balance throughout its rotation, even when operating at a high rate of revolution.03-31-2011
20110070108ROTARY ELECTRIC MOTOR AND BLOWER THAT USES THE SAME - In a rotary electric motor a first stator core and a second stator core are disposed coaxially so as to be separated by a predetermined distance axially and such that circumferential positions of teeth are aligned, and a first rotor core and a second rotor core on which salient poles are disposed at a uniform angular pitch circumferentially are fixed coaxially to a rotating shaft so as to be positioned on inner peripheral sides of the first stator core and the second stator core, respectively, and so as to be offset circumferentially by a pitch of half a salient pole from each other. A first permanent magnet that is magnetically oriented such that a direction of magnetization is radially inward is disposed on an outer peripheral surface of a core back of the first stator core, and an outer peripheral surface of the first permanent magnet and the outer peripheral surface of the core back of the second stator core are linked by a frame that is made of a magnetic material.03-24-2011
20110044831MOTOR WITH HIGH PRESSURE RATED CAN - An apparatus includes a motor. The motor includes a rotor, a stator disposed around the rotor, and a first high pressure rated can separating the stator from the rotor. The first high pressure rated can at least partially defines a rotor cavity encompassing at least a portion of the rotor and a first pressure environment independent of a second pressure environment of the stator. The second pressure environment of the stator is substantially pressure balanced with respect to the ambient environment.02-24-2011
20110150676Redundant Sump Pump System - Embodiments of the invention provide a sump pump system that pumps fluid. The system can include a base with one or more inlets and one or more outlet. The system can also include a first cartridge coupled to the base and removable from the base. The first cartridge can include a first electric motor. The system can further include a second cartridge coupled to the base and removable from the base. The second cartridge can include a second electric motor. The first cartridge and/or the second cartridge can be capable of operating at any given time in order to propel fluid from inlets to the outlets.06-23-2011
20090324432Gerotor apparatus for a quasi-isothermal brayton cycle engine - According to one embodiment of the invention, an engine system comprises a housing, an outer gerotor, an inner gerotor, a tip inlet port, a face inlet port, and a tip outlet port. The housing has a first sidewall, a second sidewall, a first endwall, and a second endwall. The outer gerotor is at least partially disposed in the housing and at least partially defines an outer gerotor chamber. The inner gerotor is at least partially disposed within the outer gerotor chamber. The tip inlet port is formed in the first sidewall and allows fluid to enter the outer gerotor chamber. The face inlet port is formed in the first endwall and allows fluid to enter the outer gerotor chamber. The tip outlet port is formed in the second sidewall and allows fluid to exit the outer gerotor chamber.12-31-2009
20090317270DIAPHRAGM FOAM PUMP - A diaphragm foam pump including a diaphragm made of a flexible material defining a mixing chamber and having an inlet opening and an outlet opening. An inlet passageway is in fluid communication with a reservoir containing a foamable liquid and the inlet opening, with the inlet passageway having a one-way valve therein. The pump also includes an outlet passageway in fluid communication with the outlet opening and having a one-way valve therein, and an air inlet in the inlet passageway having a one-way valve. The diaphragm foam pump further includes an electric motor and a motor-driven element associated with said electric motor. Actuating the electric motor drives the motor driven element to repeatedly collapse and expand the diaphragm, and where expansion of the diaphragm creates a vacuum causing foamable liquid and air to flow into the mixing chamber, and collapsing of the diaphragm causes the liquid and air mixture to be forced out through the outlet passageway as foam.12-24-2009
20090317269POWER CONTROLLER - Power controller comprising a pump (12-24-2009
20090285703Motor-Driven Compressor - An energization bolt (11-19-2009
20090142207BOTTOM HOLE HOLLOW CORE ELECTRIC SUBMERSIBLE PUMPING SYSTEM - An electric submersible pumping system includes a motor comprising an inner hollow core rotor and an outer stator, a gearbox comprising a hollow core input shaft connected to the motor rotor, and a hollow core output shaft, and a pump driven by the gearbox output shaft, the pump having an intake, and wherein the pump output is directed through the hollow core output shaft and into the hollow core motor rotor. The motor section is disposed above the gearbox and pump.06-04-2009
20080310976BRUSHLESS MOTOR FUEL PUMP - The invention relates to a fuel conveying device for conveying fuel towards an internal combustion engine. The fuel conveying device comprises a housing and a head connected to the housing. Further, a fuel pump is provided, having an electronically commutated brushless motor. The control electronics for the electronically commutated brushless motor of the fuel pump are carried by or arranged within and/or on the head or housing.12-18-2008
20110211980Inverter Integrated Electric Compressor - Provided is a low-cost compressor having excellent operation stability which enables the improvement of the stability of a control circuit by shielding electromagnetic noise and the effective prevention of the vibration of a control substrate while the design flexibility is maintained at the same high level as that of conventional ones. An inverter-integrated electric compressor in which a motor is incorporated and a high-voltage circuit for motor drive including an inverter and a control substrate provided with a low-voltage circuit for control are provided in a compressor housing is characterized in that a shield plate made of a material capable of shielding an electromagnetic noise emitted from the high-voltage circuit for motor drive toward the low-voltage circuit for control is interposed between the high-voltage circuit for motor drive and the control substrate, and the shield plate and the control substrate are fixed to each other and both are fixed at a predetermined position in the compressor housing.09-01-2011
20110211981Inverter-Integrated Electric Compressor - Provided is an inverter-integrated electric compressor excellent in joining strength and joining reliability at electrical joint. An inverter-integrated electric compressor wherein a motor is incorporated and a motor drive circuit including the inverter is surrounded by a compressor housing, characterized in that a bus bar joint section at which bus bars are electrically joined together is provided in the motor drive circuit, and a tip of at least one of the bus bars, the tip being located at the bus bar joint section, is split into small joining sections.09-01-2011
20110165000Hermetic Compressor - There is provided a hermetic compressor which has a simplified structure and can satisfactorily separate a lubricating oil from a refrigerant and efficiently discharge the refrigerant from a hermetic container. A discharge passage (07-07-2011
20100296950COMPRESSOR - A compressor includes a hermetic container, a compression mechanism section disposed in the hermetic container, and a motor disposed in the hermetic container to drive the compression mechanism section. The motor has a rotor and a stator disposed so as to surround an outer periphery of the rotor. The stator includes a stator core and oil passage grooves. The stator core has a hollow circular cylindrical section and a plurality of circumferentially arranged teeth protruding radially inward from an outer peripheral surface of the hollow circular cylindrical section. The oil passage grooves are located radially outside of the teeth. The oil passage grooves are formed by cutting an outer peripheral surface of the hollow circular cylindrical section.11-25-2010
20110027110OIL FILTER FOR DOWNHOLE MOTOR - A method of controlling operation of an ESP, comprising determining at least one operating speed (rpm) at which the ESP experiences unacceptable levels of lateral vibrations; and applying a periodic modulation to the operating speed when operating the pump at the determined speed to damp the lateral vibrations.02-03-2011
20100284840Fuel Pump - A fuel pump having an electric motor and a pump stage driven by the electric motor. The pump stage includes an impeller disposed in a pump housing, and the pump housing having a pump base and a pump cover. The pump cover has an inlet port. The inlet port is thereby designed to be changeable in axial length.11-11-2010
20100284837Fluid Transfer Devices With Resilient Valve Structures And Ambulatory Infusion Devices Including Same - Fluid transfer devices for use in, for example, ambulatory infusion devices and infusions devices including fluid transfer devices.11-11-2010
20100284839PIEZOELECTRIC FAN ASSEMBLY - A piezoelectric fan assembly includes a case defining an air outlet, a fan arranged in the case, and a guide plate mounted in the case and encircling the fan. The fan includes a mandrel positioned in the case, two swing members mounted to the mandrel and each including a piezoelectric element, a circular connecting portion connected to the at least one swing member, and a number of fan blades mounted to the connecting portion to generate airflow by the swing members in response to the piezoelectric element receiving alternating current power. A wind channel is formed between the case and the guide plate. A number of openings are defined in the guide plate corresponding to the fan blades. The guide plate is to transfer airflow from the number of fan blades to the air outlet via the wind channel, through the number of openings.11-11-2010
20100284836IDLER GEAR AND JOURNAL BEARING ASSEMBLY FOR A GENERATOR - A generator includes an aluminum housing having an end plate secured to a housing portion. The housing portion and the end plate respectively include first and second bores. The end plate includes a wall with a boss providing a bore. The wall provides a lubrication passage in fluid communication with the bore. An idler gear includes a shaft having opposing first and second ends respectively supported in the first and second bores. A generator is arranged within the housing and is rotationally coupled to the idler gear. First and second impregnated carbon journal bearings respectively include a first inner and outer bearing diameter and a second inner and outer bearing diameter. The first and second outer bearing diameters are in press fit relationship with the first and second bores respectively. The inner diameters are fixed relative to their respective outer diameter.11-11-2010
20110256002Electric Compressor Having Drive Circuit Integrated Thereinto - Disclosed is a drive circuit-integrated electric compressor, which is adapted to cool a power semiconductor element in a motor drive circuit with good efficiency without increasing the temperature of sucked refrigerant gas and while suppressing increase in pressure loss in a path for cooling. Specifically disclosed is a drive circuit-integrated electric compressor into which a motor drive circuit having a power semiconductor element is incorporated integrally, characterized in that the electric compressor is configured so that the power semiconductor element in the drive circuit is cooled by refrigerant gas to be discharged.10-20-2011
20100329907MOTOR FOR COMPRESSOR AND HERMETIC COMPRESSOR HAVING THE SAME - Disclosed are a motor for a compressor and a hermetic compressor having the same. An aluminum coil is used in the motor for the compressor, and sectional areas of main and sub slot portions and the numbers thereof are adjusted to be suitable for usage conditions, whereby fabricating costs of the motor for the compressor and the hermetic compressor can drastically be reduced. Also, as the aluminum coil of the motor for the compressor is coupled to a lead wire in a welding manner, the breaking of the aluminum coil, which may occur when coupling the aluminum coil to the lead wire can be prevented, resulting in improvement of assembly reliability of the reciprocating compressor.12-30-2010
20100329905PERMANENT MAGNET DIRECT DRIVE MUD PUMP - A permanent magnet direct drive mud pump has a permanent magnet motor, a shaft connected to the permanent magnet motor, and a pump head connected to the end of the shaft opposite the permanent magnet motor. The permanent magnet motor has a housing, a stator positioned within the housing, and a rotor cooperative with the stator and positioned interior of the stator within the housing. The rotor is interconnectable with the shaft so that the rotational motion created by the permanent magnet motor can be directly imparted to the shaft and, accordingly, to the pump head without the use of a transmission.12-30-2010
20100329904Integrated Endshield and Pump Volute For An Electric Pump And Method of Forming An Electric Pump - An electric pump comprises a stator, a rotor, and an endshield. The interface plate is fixed to the stator and is configured to couple the electric motor to a pump. The pump volute is formed as an integral portion of the endshield, thereby minimizing the axial length of the electric pump. A drainage passageway is provided on the endshield to harmlessly drain away any fluid that seeps past the pump's seals. In one embodiment of the invention, the drainage passageway is a groove that faces the stator and is configured to facilitate the evaporation of and leak fluid by channeling the fluid near the stator, which warms the fluid and thereby increases the fluid's evaporation rate.12-30-2010
20110052431ELECTRO-OSMOTIC PUMP - A pump for inducing liquid movement by means of polarisation electro-osmosis, comprising a passageway forming a flow path for fluid transport, at least one polarisable means located within said passageway so as to form at least one pore through said passageway, the at least one polarisable means being shaped such that at least a section of the pore walls are curved or inclined with respect to the longitudinal axis of the passageway, the pump further comprising a non-conductive porous membrane positioned across the flow path and in close proximity to the at least one polarisable means, the membrane comprising pores extending in a direction at least partially parallel to the longitudinal axis of the passageway and having a pore size smaller than the at least one pore formed by the polarisable means.03-03-2011
20110052430FLUID MACHINE - A fluid machine for compressing or conveying fluids, in particular for compressing gases to high pressures, has a linear motor (03-03-2011
20110081263INDUCTION MOTOR AND HERMETIC COMPRESSOR - It is an object to obtain a highly efficient induction motor which does not degrade the fitting strength of shrink-fit and of which the starting torque is high, and further to obtain a highly reliable hermetic compressor which suppresses the oil amount flowing out of the hermetic compressor. According to the present invention, an induction motor includes a stator having a winding to be inserted to a plurality of stator slots formed along an inner circumferential edge of a stator iron core; and a rotor 04-07-2011
20100172773SUBMERSIBLE PUMP MOTOR PROTECTOR - According to one or more aspects of the present disclosure, a motor protector comprises a housing defining a compensator chamber; a compensator disposed in the housing having a motor fluid end in fluid communication with a motor fluid and a well fluid end, the compensator axially moveable relative to the housing in response to the expansion and contraction of the motor fluid; and a port formed through the housing to provide fluid communication from exterior of the housing to the well fluid end of the compensator. The compensator may be one selected from the group of a bellows and a plunger.07-08-2010
20100172772VEHICLE-AIR-CONDITIONER COMPRESSOR - There is provided a vehicle-air-conditioner electric compressor in which a high-voltage short circuit due to the breakage of a high-voltage system including an inverter is prevented in the event of a crash, thereby improving safety. In a vehicle-air-conditioner electric compressor (07-08-2010
20100215523FUEL SUPPLY DEVICE - Male terminals 08-26-2010
20100215522CHECK VALVE, FLUID DEVICE, AND PUMP - A check valve is housed in a valve chamber and includes a support portion and a flexible portion. The support portion extends along a principal axis thereof. The flexible portion is supported by the support portion in a manner extending from the principal axis. A diaphragm defines a lower wall of the valve chamber, and includes an inflow port for fluid at a position that is closed with the flexible portion when the flexible portion is displaced. A bottom plate defines an upper wall of the valve chamber, and faces the diaphragm with the flexible portion arranged therebetween. An uneven portion is provided in at least one of mutually facing areas of an upper principal surface, which is one of two principal surfaces of the flexible portion and faces the bottom plate, and a lower principal surface of the bottom plate, the uneven portion being partially uneven.08-26-2010
20100166576Magnetic Air Car - A magnetic air car uses a magnetic motor to compress input air and save moderately compressed high-pressure air in storage tanks. The compressor and storage tanks deliver the high-pressure working air and operational flows to several stages of compressors that boost the pressures during driving to very high-pressure, then ultra high-pressure, then super high-pressure, and finally to extremely high-pressure. A pneumatic torque converter uses jets of the extremely high-pressure to turn an input shaft of a transmission and differential. These, in turn, drive the powered wheels of a car. The compressors float a connecting shaft with matching vanes and impellers on opposite ends on air bearings to reduce shaft turning friction to near zero. The balance of forces between the two ends of a coupled turbo pair allow a simple air bearing design to operate safely and reliably at high rotational speeds.07-01-2010
20100166575Magnet Embedded Rotor, Electric Motor Using the Same Rotor, and Compressor Using the Same Motor - A magnet embedded rotor is provided in which permanent magnets are embedded in the iron core of the rotor at a fixed interval. Notch parts are formed at the first protruding part and both the sides of the first protruding parts on the outer face between salient poles in the iron core of the rotor correspond to the multiple permanent magnets. Non-magnetic parts for preventing the short circuit of magnetic flux are formed at both the edges of the permanent magnets. A bridge part between the non-magnetic parts and the notch parts are narrowed as much as possible to an extent to cause a magnetic saturation, and one or multiple of the second protruding part extending to the direction of the outer face are formed at the notch parts.07-01-2010
20100196173LINEAR COMPRESSOR - A linear compressor having an electromagnet; an oscillating body that moves back and forth in the alternating field of the electromagnet; a piston that is connected to the oscillating body and that reciprocates in a cylinder and delineates a pump chamber; and an elastically deformable plate that forms at least one of the end faces of the pump chamber.08-05-2010
20090202368ELECTRIC FUEL PUMP - In a fuel pump, a case member and a discharge-side cover define a fuel passage. A holder is held between the case member and the discharge-side cover. Brush terminals are supported by the holder to conduct electricity between power receiving terminals and brushes. The power receiving terminals have connector portions that are connected with the brush terminals. A wall of the discharge-side cover and a wall of the holder clamp the connector portions therebetween. The wall of the discharge-side cover and the wall of the holder partition an installation space, which is isolated from the fuel passage and in which the connector portions are enclosed.08-13-2009
20110020154STATOR OF ROTARY ELECTRIC MOTOR AND FUEL PUMP - A stator of a rotary electric motor has core segments. All or some of the core segments have terminal mounting members for mounting terminals to which coils are connected. The terminal mounting member and the bobbin for each of the core segments are molded by resin and integrated with the corresponding core segment.01-27-2011
20100021319Pump - A pump includes: a pump chamber for which a capacity is changeable; an inlet channel which allows a working fluid to flow into the pump chamber; an inlet side fluid resistance element disposed between the pump chamber and the inlet channel; an outlet channel which allows the working fluid to flow out of the pump chamber; and a pipeline element formed inside the outlet channel, wherein a rotational flow generation structure, which generates a rotational flow of the working fluid, is provided in the pump chamber, and wherein the outlet channel is located adjacent to the rotational center of the rotational flow.01-28-2010
20110217191Inverter-Integrated Electric Compressor - Provided is an inverter-integrated electric compressor whose inverter section is molded using a urethane resin and which is excellent in joining reliability of electrically connected section. An inverter-integrated electric compressor, wherein the compressor incorporates a motor and wherein a motor drive circuit including the inverter is provided in a containing space surrounded by a compressor housing. A crimping section of a terminal of a conducting wire connected to the inverter is molded, together with the inverter, in a resin charged into the containing space. A gap at the crimping section, the gap being open to the outside, is previously covered and sealed by a gap sealant.09-08-2011
20110217190Inverter-Integrated Electric Compressor - Disclosed is a low-cost, inverter-integrated electric compressor with which a high degree of design freedom is maintained, high vibration resistance can be achieved by reliable anchoring of the circuit components, the weight can be reduced easily, and which has excellent operational stability. An inverter-integrated electric compressor has a built-in motor and has a substrate provided with a motor drive circuit including an inverter. In the inverter-integrated electric compressor, after electric components including the substrate have been fixed in a housing space surrounded by a compressor housing and have been assembled, the housing space is filled with an insulating resin, and at least a part of the electric components are sealed by the solidified filling resin. The inverter-integrated electric compressor is characterized in that a resin frame, which has a concave retaining part provided with a concave part formed in a concave shape along the outlines of the circuit components provided on the substrate and has a vent hole provided in the concave retaining part, is mounted on the substrate, and a resin injection space, which can be filled with resin, is formed between the circuit components on the substrate and the resin frame.09-08-2011
20110217189REFRIGERANT COMPRESSOR - Refrigerant compressor, comprising an electric drive unit (09-08-2011
20110020153MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a compression mechanism for compressing refrigerant, an electric motor for driving the compression mechanism, an inverter for controlling the operation of the electric motor, and a motor harness for electrically connecting the electric motor to the inverter. The compression mechanism and the electric motor are mechanically connected each other. The electric motor has first and second coil ends. The first coil end is located on the side of the compression mechanism and the inverter is located on the side of the second coil end. The motor harness is led out from the first coil end.01-27-2011
20090010774Air Compressor and Reservoir For Topping Off Low Pressure Tires - A small volume capacity pump is used to pressurize a small air tank, and the tank is used to top off pressure in an automobile tire or other receptacle. The tank preferably has a reservoir measuring 200-300 cc, and is pressurized to at least 500 psi. The pump preferably has a low volume capacity of 200-300 cc/min, thus requiring at least 15-45 minutes to refill the reservoir to its full operating pressure when empty. A pump can be operated by a DC or AC motor, which can be housed along with, or separately, from the pump. Especially preferred embodiments also include an automatic pressure regulator that can be set to deliver a desired pressure to a receiving device, and a trigger that controls release of air from the tank to the regulator.01-08-2009
20100196174IPM MOTOR AND VACUUM INHALING APPARATUS USING THE SAME - Provided is a high speed and high efficiency IPM (Interior Permanent Magnet) motor and a slim type vacuum inhaling apparatus using the same, which establishes a passage path of introduced air into a path of air-cooling the inside of a stator and a circuit element to thus cool heat that is produced from the IPM motor without a special heat radiator. The IPM motor includes: a stator having a number of tees which are protruded so as to form a number of slots on the inner circumferential wall of a cylindrical body, and a stator coil which is partially wound around the slots; and an IPM type rotor having a rotor core at the central side of which a rotating shaft is mounted, and a number of permanent magnets which are fitted into a number of permanent magnet insertion holes which are formed on the identical circumference of the rotor core, and which is rotated by the stator.08-05-2010
20110008190ELECTRIC FAN WITH MULTIPLE SELECTION OF OSCILLATING ANGLES - An electric fan includes a fan shaft driven by a fan motor supported by a motor support. An oscillating device includes a rotational shaft connected to the motor support for driving the motor support to oscillate. A transmission gear has an axle connected to the rotational shaft and a gear wheel mounted around the axle and driven by a synchronous motor. An oscillating angle limiting switch detects a rotational angle of the rotational shaft and the gear wheel and sends a signal indicative of the rotational angle. A circuit board has a processor coupled to the oscillating angle limiting switch and receives the signal. A comparing program compares the rotational angle indicated by the signal with a selected one of a plurality of preset rotational angles. The synchronous motor is driven when the rotational angle indicated by the signal is equal to the selected preset rotational angle.01-13-2011
20110135515CIRCULATING PUMP UNIT - A circulation pump assembly (06-09-2011
20120039729Motor and Cooling Fan utilizing the same - A motor includes a base, a stator, a rotor, a circuit board and a heat-conducting insulator. The base includes a cooling plate. The stator is coupled to the base. The rotor is rotatably coupled to the base and aligned with the stator. The circuit board is received in the base and electrically connected to the stator. The heat-conducting insulator is disposed between the cooling plate and the circuit board, and abuts with the cooling plate and one face of the circuit board.02-16-2012
20110142695ELECTRIC COMPRESSOR - The present invention provides an electric compressor in which a lead wire on the motor driving circuit side can be electrically connected positively to a sealed terminal. Because the sealed terminal is formed from a terminal body which is made of a metal having electrical conductivity and whose end is provided with a male threaded portion, and a joining nut made of a metal having electrical conductivity and which is different from the material for the terminal body, and is threadably mounted on the male threaded portion of the terminal body, it is possible to positively join the joining nut of a different material to the terminal body and to positively join the lead wire of the same material as the joining nut to the joining nut by welding, whereby it becomes possible to electrically connect a lead wire on the driving circuit housing chamber side positively to the sealed terminal.06-16-2011
20090116982HERMETIC RECIPROCATING COMPRESSOR WITH THRUST BALL BEARING - A hermetic compressor includes a hermetic container that stores lubricating oil, an electrically-driven element having a stator and a rotor, a shaft having a compressing element driven by the electrically-driven element, and including an eccentric shaft portion, a cylinder block, a piston, a coupling device that connects the piston and the eccentric shaft portion, a main bearing, and a thrust ball bearing that supports a vertical load by the self weight of the rotor and the shaft. The thrust ball bearing includes a plurality of balls having a diameter of 3 mm or less, a holder portion holding the balls and formed of a polymeric material, and an upper washer and a lower washer disposed above and below the balls, respectively, and the viscosity grade of the lubricating oil is from ISO VG3 to ISO VG10.05-07-2009
20100278665FIXATION STRUCTURE FOR COMPRESSOR - Provided is a compressor fixation structure that can reduce the occurrence of condensation. In a fixation structure for a compressor that has an electric motor and a compression mechanism provided adjacently to the electric motor and driven by the electric motor, when forming a motor housing for the electric motor and a compression mechanism housing for the compression mechanism separately from each other, a fixation part to be fixed to an object to which the compressor is to be attached is provided in the compression mechanism housing. Consequently, the compression mechanism housing is integrated with the object, and the heat capacity of the compression mechanism including the compression mechanism housing can be assumed to be a larger capacity which includes the heat capacity of the object.11-04-2010
20080219866Generation and Management of Mass Air Flow - Systems and methods for generating high velocity mass air flows are disclosed. High velocity mass air flow (air charging) devices are needed in a variety of research, industrial, commercial, and consumer applications. The exemplary systems and apparatus described incorporate an electric motor subassembly, an air effector subassembly, a highly intelligent apparatus controller subassembly (and interfaces), and linked sensors, connectors, and wiring. The exemplary method described includes the operational apparatus controller subassembly (e.g., elements, logic, and behavior) that controls the entire apparatus' functions and interactions.09-11-2008
20100254834HERMETIC CRANKCASE HEATER - A heater is provided inside a hermetic compressor to heat the fluid in an oil sump of the compressor. The heater can be substantially submerged in the fluid even at low fluid levels. The heater can raise the temperature of the fluid to a predetermined temperature to substantially maintain non-lubricant fluids in a gaseous state and prevent non-lubricant fluids from mixing with the lubricant in the sump. A feed through assembly in the compressor housing is used to supply power to both the compressor motor and the heater.10-07-2010
20100239442PROTECTION SYSTEM FOR SUBSEA SEAWATER INJECTION PUMPS - This invention relates to a pump system, especially for boosting the flow rate of a fluid through a pipe (09-23-2010
20100098562PUMPING DEVICE - The invention relates to a pumping device comprising: a housing (04-22-2010
20110064593RECIPROCATING COMPRESSOR - The present invention relates to a reciprocating compressor in which a piston is linearly reciprocated inside a cylinder, for sucking a refrigerant into a compression space, and compressing and discharging the refrigerant, and more particularly, to a reciprocating compressor which can reduce the number of inverter switch required to apply power to a motor (coil section) to one by connecting a stationary member and a movable member by a plate spring, having an outer stator consist of blocks encompassing an inner stator, and varying the length of the lower pole of each block.03-17-2011
20120045353INVERTER-INTEGRATED ELECTRIC COMPRESSOR - Provided is an inverter-integrated electric compressor in which the layout of a wiring path connected to an IPM is optimized, the wiring path is simplified, and the noise interference due to disturbance is suppressed, thereby improving the controllability. In an inverter-integrated electric compressor in which an inverter box is provided on the outer periphery of a housing accommodating a compressor and a motor, the inverter box integrally accommodating an inverter device, the inverter device includes an IPM constituting an inverter circuit, and UVW output terminals arranged on one side of the IPM are disposed, in the inverter box, so as to face a glass-sealed terminal that applies power from the inverter device to the motor.02-23-2012
20120045352PUMP AND PUMP ASSEMBLY - Provided is a fluid pump assembly. The pump has a pair of housings magnetically coupled to each other. The first housing contains a drive motor and a magnetic assembly. The second housing contains a magnetic assembly and a blade for imparting movement to a fluid. As the first magnetic assembly is rotated by the drive motor, the magnetic connection to the assembly in the second housing causes the second magnet to rotate, driving the blade.02-23-2012
20120045351Electronically commutated DC motor for a liquid pump - An electronically commutated DC motor for a liquid pump, comprising a pump housing, a suction connection and a pressure connection, a substantially disk-shaped pump rotor mounted rotatably in the pump housing, the rotor comprising an impeller having a plurality of pump vanes and a permanent magnet, a partition separating a pump space from a dry space, wherein the partition is disposed in an axial gap between the pump rotor and a plurality of axially parallel oriented stator poles of the DC motor, which are each provided with an insulating body and a stator winding, the stator poles adjoin a stator yoke, which is connected to a metallic heat-conducting body, and the stator containing the stator poles, the stator windings, the stator yoke and the heat-conducting body is disposed in a motor housing made of plastic material. By providing that the stator is surrounded by a flexible foil, and at least a large part of the foil is disposed inside the motor housing radially around the stator windings, a simple solution ensures good shielding against interference in an existing electronically commutated DC motor, without requiring modifications to the existing design.02-23-2012
20110008191PISTON AND CYLINDER COMBINATION DRIVEN BY LINEAR MOTOR WITH CYLINDER POSITION RECOGNITION SYSTEM AND LINEAR MOTOR COMPRESSOR, AND AN INDUCTIVE SENSOR - The present invention discloses a piston and cylinder combination driven by linear motor with cylinder position recognition system, comprising a support structure (01-13-2011
20120057999MOTOR-DRIVEN COMPRESSOR - The motor-driven compressor includes a housing, a compression mechanism, a rotary shaft and an electric motor all disposed in the housing, a protective film and a fixing resin. The electric motor is adapted to rotate the rotary shaft thereby to drive the compression mechanism. The electric motor has a rotor fixed on the rotary shaft and a stator supported by the housing. The rotor has a permanent magnet and a magnet hole in which the permanent magnet is inserted. The magnet hole extends in an axial direction of the rotor. The protective film is formed on a surface of the permanent magnet for improving corrosion resistance of the permanent magnet. The fixing resin is filled in at least part of a gap between the permanent magnet and a wall of the magnet hole for fixing the permanent magnet to the wall of the magnet hole.03-08-2012
20120114511Cooling Fan - A cooling fan comprises a housing and a motor. The housing includes a support portion, a cover portion and a lateral wall portion, with the lateral wall portion disposed between the cover portion and the support portion, with the lateral wall portion, support portion and the cover portion defining a compartment, and with the lateral wall portion having at least one lateral air inlet and at least one lateral air outlet penetrating through the lateral wall portion and communicating with the compartment. The motor is mounted inside the compartment of the housing and contains a stator and a impeller, with the impeller rotatably mounting to the stator, and further containing a hub with a top and a plurality of blades, with the top facing the cover portion, with the top and the cover portion delimiting a lateral flow path in the compartment, and with each blade being contained in the lateral flow path.05-10-2012
20120063931Electrical Submersible Pump System Having High Temperature Insulation Materials - Electric submersible well pumping systems operable in well temperatures of above about 180° C. (356° F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed around magnet wires that are threaded through slots in the stator. Slot insulation of E-base polyimide or perfluoropolymer TE film surrounds the magnet wires in the stator slots. Sheets of E-base polyimide or perfluoropolymer TE film extend around and between phase loops of the magnet wire at the lower end of the stator. The motor contains a PAO oil having additives to dissipate acid generated by epoxy used in the motor.03-15-2012
20120156066CONCENTRIC MULTI-STAGE CENTRIFUGAL PUMP WITH START STAGE - A multi-stage concentric centrifugal pump includes a start stage. An inner impeller stage is driven by drive shaft while an electric motor drive is selectively switched on for starting, and off for normal operation to drive an outer impeller stage. The electric motor driven outer stage builds required system pressure and flow at engine starting, and then permits the electric motor to be switched off and allow the outer stage to act as a free rotating disk to improve operating efficiency of the pump.06-21-2012
20110076167Electric Motor II - An electric motor conveys media and includes a stator, a rotor with a rotor magnet, and a media throughput opening between the stator and rotor. An operationally reliable delivery of media at low cost and with low maintenance is achieved with the electric motor.03-31-2011
20110091337INTEGRATED-INVERTER ELECTRIC COMPRESSOR - It is an object to provide an integrated-inverter electric compressor in which variations in sealing performance hardly occur, thus reliably enhancing the waterproofing performance of an inverter accommodating section. An integrated-inverter electric compressor in which an inverter accommodating section (04-21-2011
20110103979ELECTRIC COMPRESSOR - The present invention provides an electric compressor which enables prescribed insulation performance to be ensured even if poly alkyl glycol type lubricating oils are used. The electric compressor is provided with an insulating cover which is provided so as to cover a connection section between a terminal body and a lead wire on the motor side, and on a surface on the side of a first insulating member of the insulating cover, there is provided a cutoff section which cuts off a leakage path by abutting against the first insulating member, whereby the leakage path between the first insulating member and the insulating cover is cut off.05-05-2011
20100290932MOTOR AND COMPRESSOR WITH THE SAME - In a motor, one ends of a plurality of electric wires with the other ends connected to the motor side are connected to a terminal rod, and the terminal rod is exposed to the exterior of a motor casing via a terminal base. The terminal rod is provided with a flange portion and a crimping portion. A concave part is formed on an end surface of the crimping portion, and a communication part providing communication between an outer surface and the concave part is formed. The terminal base is provided with a depression to be fitted to the flange portion of the terminal rod, a seal portion having a diameter reduced from the depression, and a through portion passing from the seal portion through to the exterior of the motor casing. A seal member is put on the terminal rod. In a state that the electric wires are inserted into the concave part of the crimping portion, the outer surface of the crimping portion is pressurized, so that the electric wires are fixed to the crimping portion. With such a configuration, it is possible to reduce electric resistance between the electric wires from the motor side and the terminal rod and strongly combine the electric wires and the terminal rod.11-18-2010
20120251355MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor has a housing and a partition. A compressing portion and an electric motor as the drive source of the compressing portion are accommodated in a first area. A drive circuit for the motor is arranged in a second area so as to have dissipation of the drive circuit. The compressor further includes a conductive member electrically connected to the circuit and fixed to the partition, and an electrical connection portion electrically connecting the conductive member to the motor. The connection portion is partly received in a passing area formed between the housing and the motor. The housing has a suction port and a discharge port. The discharge port is located at a position farther from the partition than the suction port and the passing area. An insertion member in the passing area restricts flow of refrigerant in the housing toward the discharge port via the passing area.10-04-2012
20120121447ELECTRICALLY DRIVEN TURBOCHARGER DEVICE - Inside of a gas-tight housing, an electric motor, an inverter and a compressor are housed. Further, an intake air pipe is connected to the gas-tight housing. Inside of the gas-tight housing, an intake air flow passage is formed. Further, a connection opening of an outside air induction pipe provided with a flow rate regulating valve is arranged so as to face a suction opening of a compressor. When the delivery air flow rate as well as the delivery air pressure of the compressor is reduced due to the pressure loss and the like of the intake air ‘a’ which passes through the air flow passage and cools the electric motor and the inverter, an outside air ‘o’ of low temperature is induced so that: the capacity shortage as well as the performance deterioration of the compressor is constrained; and the over-heating of the compressor is constrained.05-17-2012
20100247351AXIAL FLOW FAN, IN PARTICULAR FOR A MOTOR VEHICLE - An axial flow fan is provided that is arranged in a rotatable manner around an axis in a stationary shroud ring, with fan blades. The shroud ring has an essentially cylindrical annular surface with an axial extension from a leading edge to a trailing edge and the fan blades have an axial depth from an inflow edge to an outflow edge. The outflow edges of the fan blades in an axial direction project beyond the trailing edge of the annular surface and form a blade overhang and flow guidance elements are arranged radially outside the fan blades as well as in the axial region of the blade overhang.09-30-2010
20100247352POWER CONNECTORS FOR PUMP ASSEMBLIES - A pump assembly includes a pump housing, a motor coupled to the pump housing being operated to drive fluid through the pump housing, and a control module operatively coupled to the motor. The control module has a power connector with power contacts, where the power connector has a plug interface. The pump assembly also includes first and second plug assemblies configured to be selectively coupled to the power connector. The first and second plug assemblies have first and second mating interfaces both configured to mate with the plug interface of the power connector. The first plug assembly includes a line cord having a pump plug at one end of the line cord and an outlet plug at an opposite end of the line cord. The second plug assembly includes a conduit box having plug contacts configured to be field wired to a power cable within the conduit box.09-30-2010
20100247350TURBOMOLECULAR PUMP DEVICE AND CONTROLLING DEVICE THEREOF - A turbomolecular pump having a pump main unit having, at least, a rotary vein provided on a rotor, a static vein for working in cooperation with the rotary vein to perform a vacuum exhaust, and a motor for driving the rotor, comprising: a controlling device that includes a motor driving circuit for converting into thermal energy, in a regenerative braking resistance, the regenerative electric current that is produced at the time of regeneratively driving the motor; and a cooling device for cooling the controlling device. A rod-shape heating resistive element is used as the regenerative braking resistance, where this resistive heating element is routed along the inner peripheral surface of an end portion 09-30-2010
20100247349INTEGRATED-INVERTER ELECTRIC COMPRESSOR - A common mode coil can be installed without having to increase the planar area for an inverter accommodating section so that high performance and size reduction and compactness of an inverter device can be achieved. In an integrated-inverter electric compressor (09-30-2010
20100247348TERMINAL DEVICE FOR ELECTRIC COMPRESSOR - A terminal device for an electric compressor has a partition wall and a terminal member for supplying electricity to an electric motor for driving a compression mechanism. The partition wall is located between an electric motor-storing section, which stores the electric motor and in which lubricating oil-containing fluid to be compressed is present, and a circuit section for supplying electricity to the electric motor. The terminal member extends through the partition wall in a sealed and insulated manner. An electricity conduction wire at an end of a lead wire for supplying electricity to the electric motor is directly connected to the end of the terminal member which is on the electric motor-storing section side. An insulation cover is provided so as to extend from the electric motor-storing section—side end of the terminal member to an insulation cover tube of the electricity conduction wire of the lead wire for supplying electricity to the electric motor. The terminal device can exhibit high insulation performance even if polyalkylene glycol-based oil is used as lubricating oil-containing fluid to be compressed. Further, the terminal device has a simple structure not requiring a cluster, can ensure high insulation performance, and can be constructed at low cost.09-30-2010
20100247347INDUCTION MOTOR AND HERMETIC COMPRESSOR - The present invention is directed to provide an induction motor having an ideal efficiency at the normal operation time, while obtaining a high locked-rotor torque without having to use a special drive circuit. According to the induction motor related to the present invention, the induction motor has a rotor 09-30-2010
20100247344HEAT DISSIPATING FAN - A heat-dissipating fan has a housing and an impeller. The housing has a receiving space and one or more guide rings. The receiving space forms an airflow inlet and an airflow outlet. The guide ring is mounted near the airflow outlet and has one or two guide surfaces formed thereon and facing the airflow inlet. The impeller is mounted rotatably in the receiving space and has a hub and multiple blades. Airflow channels formed between adjacent blades each have a cross-section narrowed from a top end of the guide ring to the airflow outlet. Each blade has a receiving notch formed in a bottom edge thereof, corresponding to a cross-section of the guide ring and defines a gap between the blade and the guide ring. Airflow is speeded up in the airflow channels based on Venturi effect, such that a heat-dissipating efficiency of the fan is improved.09-30-2010
20100247342MOTOR-DRIVEN SUPERCHARGER - A motor-driven supercharger is provided with a stator assembly (09-30-2010
20100247343MOTOR-DRIVEN SUPERCHARGER - A motor stator (09-30-2010
20100247345Production Tubing Member with Auxiliary Conduit - A tubing member for use in well operations comprises a solid core extruded casing surrounding a production tubing passage arranged to receive produced fluids from a well therethrough and one or more auxiliary conduits arranged for communicate with well equipment. The casing is rectangular in cross section having a pair of opposed flat sides which can be wound onto a spool such that the flat sides are parallel to an axis of rotation of the spool. A longitudinal extending central axis of the production tubing and of each auxiliary conduit are situated spaced apart from one another along a common diametrical axis arranged to be parallel to the flat sides of the casing and the spool axis. The unitary casing provides good protection for electrical lines, hydraulic lines and other communication lines in the conduits alongside production tubing in a low cost and easy to manufacture tubing member.09-30-2010
20100247346TERMINAL DEVICE FOR ELECTRIC COMPRESSOR - Provided is a terminal device for an electric compressor in which each inputting female terminal of a cluster holding a plurality of inputting female terminals for input into an electric motor built in a compressor in a resin housing is engaged with the inner end of each sealed terminal of a sealed terminal device. The terminal device is characterized in that a resin housing storing section for storing the resin housing is formed in a compressor housing, and in that the resin housing stored in the resin housing storing section is clamped between the compressor housing and a terminal plate of the sealed terminal device mounted on the compressor housing. The terminal device can prevent coming off of the inputting female terminal and undesired positional shifting of the resin housing, and can improve its assembling ability.09-30-2010
20120315165VACUUM PUMP - A vacuum pump comprises pumping elements arranged in a pumping chamber. An electric motor drives the pumping element. A frequency inverter is provided for changing the rotational speed of the electric motor. The frequency inverter is arranged in a frequency inverter housing immediately connected to the pump housing. An air cooler and a liquid cooler are arranged in the frequency inverter housing to cool the frequency inverter.12-13-2012
20120128513ELECTRIC PUMP UNIT - An electric pump unit for a transmission, which supplies a hydraulic pressure to the transmission, includes: a pump which takes in and discharges oil; and a pump driving electric motor including a motor shaft connected to the pump, a motor rotor fixedly provided on the motor shaft, and a motor stator disposed around a circumference of the motor rotor. The pump and the electric motor are integrated with a lid that tightly closes an opening in a recess portion which is formed on a transmission housing of the transmission and into which the oil is introduced, and are accommodated within the recess portion.05-24-2012
20120128511COMPRESSOR - The present invention relates to a compressor in which a rotary member suspended on a stationary member is rotated to compress the refrigerant. The rotary member is suspended on a first stationary member and rotatably supported on a second stationary member spaced apart from the first stationary member to thereby achieve the structural stability, improve the operation reliability and reduce the vibration. The components can be easily centered and assembled with an excellent assembly property. In addition, a mounting structure of an elastically-supported vane is improved to ensure the lubrication performance and the operation reliability. Moreover, a mounting structure of a roller-incorporated vane is improved to reduce vibration and prevent refrigerant leakage, which leads to high compression efficiency.05-24-2012
20100209266ELECTRIC COMPRESSOR INTEGRAL WITH DRIVE CIRCUIT - An electric compressor integral with a drive circuit incorporates a compression mechanism section, a motor for driving the compression mechanism section, and a motor drive circuit. A refrigerant gas chamber having a refrigerant gas expansion space, into which refrigerant gas is introduced, is formed between a drive circuit installation section and a motor installation section, by a first partition wall provided on the drive circuit side and a second partition wall provided on the motor side, the side opposite the drive circuit side. The refrigerant gas chamber is interrupted by the first partition wall against the drive circuit installation section and is communicated with the motor installation section by a through hole that is provided in the second partition wall and through which the refrigerant gas can pass. Heat generating components, particularly in the drive circuit, can be easily and effectively cooled, and also on the motor installation side, cooling of the motor and lubrication of a bearing section can be easily and excellently performed.08-19-2010
20120213649ELECTRIC COMPRESSOR - An electric compressor, wherein an inverter device, which controls the operation of an electric motor by commands from an external control unit, is provided with a drive IC which computes drive signals of the electric motor based on the same, a switching circuit which converts the drive signals to rotation control signals of the electric motor, and an output signal control IC which cuts off input of the drive signals to the switching circuit at the time of an abnormality and wherein, furthermore, the drive IC is provided with a comparator which compares drive signals which are input to the switching circuit and computed values of the drive signals at a control unit inside the drive IC and, when the drive signals and the computed values do not match, the comparator makes the output signal control IC cut off input of the drive signals to the switching circuit.08-23-2012
20120219435MOTOR-PUMP ASSEMBLY FOR TRANSMISSION VALVE BODY - A pumping system for an automatic transmission includes a valve body containing transmission fluid having an upper level, a hydraulic pump mounted on a wall of the valve body, and an electric motor driveably connected to the pump.08-30-2012
20120219436ELECTRONIC APPARATUS - According to one exemplary embodiment, an electronic apparatus is provided with: a casing which includes a first casing portion having a first thickness and a second casing portion having a second thickness; a fan case which are provided in the first casing portion and the second casing portion, and which includes a first fan case portion having a first extent and a second fan case portion having a second extent; and a fan which includes a first blade portion having a first size and a second blade portion having a second size so that at least a part of the second blade portion is provided in the second fan case portion.08-30-2012
20120251356MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that prevents electric leakage from a drive circuit while suppressing the generation of noise. The motor-driven compressor includes a compressor mechanism that compresses a refrigerant, a motor mechanism that actuates the compressor mechanism, a drive circuit that drives the motor mechanism. The drive circuit is connected to a power supply. An inner housing accommodates the compressor mechanism and the motor mechanism in a sealed state and holds the drive circuit. An outer housing accommodates the inner housing and includes a mounting portion that can be mounted to another member. An intermediate member arranged between the inner housing and the outer housing and between the drive circuit and the outer housing. The intermediate members include anti-vibration and thermal insulation properties. A protector protects the drive circuit from an external impact, wherein the protector is arranged on the outer housing.10-04-2012
20120251354ELECTRIC OIL PUMP - An electric oil pump including an electric motor, a first pump element that is driven to suck and discharge oil by output torque of the electric motor, a second pump element that is driven to suck and discharge the oil by the output torque of the electric motor, and a torque transmission switching member disposed on a torque transmission path extending between the electric motor and the second pump element. The torque transmission switching member is actuated to allow torque transmission between the electric motor and the second pump element when viscosity of the oil is not higher than a predetermined value, and interrupt the torque transmission between the electric motor and the second pump element when viscosity of the oil is higher than the predetermined value.10-04-2012
20120171059Turbocharger with integrated actuator - A turbocharger having a turbine with a wastegate, and a compressor including a compressor housing, a compressor wheel, and a wastegate actuator. The turbine wheel includes blades defining an inlet. The compressor housing has an inlet wall leading to the inlet, and a shroud wall surrounding the blades. The actuator includes a base that is integral with the inlet wall, and an electric motor that is attached to the base. The shroud wall forms a first port that is in direct fluid communication with the actuator chamber, and the inlet wall forms a second port that is in direct fluid communication with the actuator chamber. Air from the first port to passes through the actuator housing and out the second port. This airflow convectively cools the working components of the actuator, while the connection of the motor to the inlet wall conductively cools the motor.07-05-2012
20120251357MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor to be mounted to an attachment section of a vehicle includes a fluid compression unit, an electric drive unit for the compression unit and a case. The case has a main body formed from a resin and covering at least the compression unit, and a mounting portion that is provided integrally with the main body and configured to be mounted to the attachment section. The mounting portion has a tubular body provided integrally with the main body and a fastening member inserted into the tubular body for mounting the tubular body to the attachment section. The main body is interposed between the compression unit and the tubular body.10-04-2012
20120251353LATERAL THRUSTER FOR A VESSEL - A lateral thruster for a vessel with a housing (10-04-2012
20120076679Inverter-Integrated Electric Compressor - Provided is an inverter-integrated electric compressor having high heat resistance, which is capable of suppressing thermal interference among a plurality of power devices. Specifically provided is an inverter-integrated electric compressor which comprises a built-in motor and a substrate provided with a motor drive circuit including an inverter, an electric component including the substrate being affixed in a housing space surrounded by a compressor housing, wherein a plurality of power semiconductor elements which constitute the motor drive circuit are disposed radially around a drive shaft of the motor in a plane crossing the drive shaft. For example, the planar shape of the power semiconductor element is formed into a rectangle, and a gap having a sectorial planar shape is formed between the power semiconductor elements adjacent to each other.03-29-2012
20120076678ELECTRICALLY POWERED PUMP - An electrically powered pump including a housing having a plurality of coils disposed in a circumferential direction of the housing, an outer rotor rotatably disposed on an inner circumferential side of the housing and having a plurality of permanent magnets, an inner rotor disposed on an inner circumferential side of the outer rotor so as to be rotatable about a rotation axis eccentric relative to a central axis of the outer rotor, the inner rotor having a plurality of slots which extend in a radial direction of the inner rotor, and a plurality of connection plates each having an outer radial end portion pivotably supported on an inner circumferential portion of the outer rotor and an inner radial end portion slidably received in the respective slots, the connection plates dividing a space formed between the outer rotor and the inner rotor into a plurality of chambers.03-29-2012
20100047091Motor-pump unit - The invention relates to a motor-pump unit having an electric motor and a pump, the pump having a suction inlet and a pressure outlet, and the electric motor comprising a motor housing which is enclosed by a cooling housing, whereby a cavity is formed, it being possible for cooling liquid to be fed to the cavity via a cooling-housing inflow and to be conducted away therefrom via a cooling-housing outflow, and the cooling-housing outflow being in flow connection with the suction inlet. In order to develop the motor-pump unit such that, if required, a flow connection can easily be made from the cooling-housing inflow to the suction inlet via the cavity and the cooling-housing outflow, it is proposed that the motor-pump unit has a connecting device which is disposed laterally alongside the pump and has a first connection, which is connected in a releasable manner to the cooling-housing inflow via a first flow channel, and a second connection, which is connected in a releasable manner to the cooling-housing outflow via a second flow channel and is connected to the suction inlet.02-25-2010
20100047090FUEL DELIVERY MODULE - A fuel delivery module comprising a substantially fuel tight housing having a fuel inlet and at least one fuel outlet, a fuel pump located in a first chamber defined within the housing, said fuel pump comprising an electric motor and a positive displacement pump assembly drivingly connected to the motor for pumping fuel from the fuel inlet to said fuel outlet, at least a substantial part of said housing being formed from a plastic material. Electrical conductors are connectable to the electric motor within a high pressure region of the first chamber, said electrical conductors being arranged to extend within a wall region of the housing from a high pressure region of the first chamber to a low pressure region before exiting the housing from said low pressure region.02-25-2010
20100047089HIGH TEMPERATURE MONITORING SYSTEM FOR ESP - An electric submersible pump device, comprising an electric motor having stators and coils; a pump coupled with the electric motor; a thermocouple or RTD for measuring temperature of the motor windings.02-25-2010
20100047088ROLLER VANE PUMP WITH INTEGRATED MOTOR - A pump includes a housing with an inlet and an outlet, and a stator that generates a rotating magnetic field and defines a pumping chamber. A rotor mounted for axial rotation within the pumping chamber has salient poles to interact with the field. The rotor mounts eccentrically such that a gap between the rotor body and stator varies circumferentially. The rotor defines hollows intermediate the salient poles with cylindrical rollers for free radial movement therein. Fluid-filled volumes are formed between the housing, the rotor and the rollers. On each side of a plane passing through the rotor axis and the housing axis, the pumping chamber is in fluid communication with the inlet or outlet, respectively. The volume expands on one side of the plane and contracts on the other. As the rotor spins, the expanding volume draws fluid from the inlet and the contracting volume expels fluid from the outlet.02-25-2010
20090097993Hermetic compressor - A hermetic compressor capable of insulating connectors (04-16-2009
20100008800COOLING FAN UNIT AND METHOD FOR DRAWING OUT LEAD WIRES THEREOF - A cooling fan unit includes a hook groove locking a plurality of lead wires drawn out of a circuit board and being formed in a wall of a housing in a direction of drawing out the lead wires. The hook groove has a lead wire through path which extends substantially perpendicularly from an end edge of the wall of the housing and a lead wire guide which extends substantially perpendicularly from a bottom of the lead wire through path. At least two of the plurality of lead wires are crossed with each other between the hook groove and a connection portion of the circuit board with respect to the plurality of lead wires, so that at least one second lead wire inhibits displacement of a first lead wire, which is aligned closest to the lead wire through path out of the plurality of lead wires accommodated in the lead wire guide, to a direction of being disengaged from the lead wire through path.01-14-2010
20120224985ELECTRIC SUBMERSIBLE PUMP FLOATING RING BEARING AND METHOD TO ASSEMBLE SAME - A floating ring bearing for an electric submersible pump (ESP) assembly disposable within a cased wellbore and a method to assemble the same are disclosed. The ESP assembly includes a motor, a pump, and a shaft coupling the pump to the pump motor. One or more floating ring bearings are disposed within the motor and the pump, each floating ring bearing circumscribing the shaft to radially support the shaft. A floating ring is disposed within each floating ring bearing. The floating ring circumscribes the shaft so that the floating ring rotates about the shaft in response to rotation of the shaft.09-06-2012
20080286131ELECTRIC SUBMERSIBLE PUMPS - A method of pumping wellbore fluid, comprising the steps of: installing an electric submersible pump in a wellbore; and operating the pump at more than 4,500 rpm to pump the wellbore fluid. Pumping in this manner provides a number of advantages in use in that the required high-speed motor and pump is shorter for a given power than existing arrangements, and provides increased reliability due to reduced complexity. A much shorter motor/pump combination also allows such equipment to be used in deviated boreholes with a reduction in damage due to mishandling and bending, as well as facilitating assembly and testing in the manufacturer's plant.11-20-2008
20090060761BRUSHLESS ELECTRIC MOTOR AND ELECTRIC PUMP - The invention relates to a brushless electric motor with a rotor assembled with permanent magnets, a stator performed with coils, at least one magnetic field sensor for sensing the actual position of the rotor, and with a control circuit for supplying the coils of the stator with current in due time, where between the rotor and the stator a mug-shaped housing is located, being closed by a base versus the control circuit and the at least one magnetic field sensor, where the mug-shaped housing is made out of a non-magnetic material, and where the at least one magnetic field sensor is arranged outside the mug-shaped housing at the base thereof. The invention further relates to an electric pump.03-05-2009
20120257996VEHICLE A/C COMPRESSOR ASSEMBLY - A vehicle a/c compressor assembly for a hybrid or electric vehicle includes an electric motor housing, an AC electric motor in the electric motor housing, a compressor housing and a compressor in the compressor housing. The AC electric motor is drivingly coupled to the compressor exterior to the motor housing and the compressor housing.10-11-2012
20120257995Submersible pump and motor rotation indication circuit - This patent addresses a need to be able to tell in which direction of rotation an electric motor is turning when connected to a pump, and in particular, a submersible pump where the direction of the motor shaft is not installed where visual observance of the direction of rotation is possible. This patent covers the modification of any existing motors or pumps to include any device, circuit, or change to sense, measure, or pick up the direction of rotation of an electric pump or motor for the purpose of knowing the direction the motor or pump is turning when operating or bumped for observation.10-11-2012
20120082573ALUMINUM WOUND LINE-START BRUSHLESS PERMANENT MAGNET MOTOR - A line-start brushless permanent magnet motor assembly includes an unconventional combination of a rotor assembly including a plurality of permanent magnets mounted thereon, and a stator assembly including aluminum winding coils. The unique combination of construction features leads to significant motor performance enhancements at lower incremental cost. The line-start brushless permanent magnet motor assembly may be incorporated into a hermetic compressor, such as may be used in an air conditioning system, to meet high efficiency standards (e.g., seasonal efficiency energy rating). The disclosed embodiments have an efficiency of at least 90% with winding coils consisting essentially entirely of aluminum.04-05-2012
20120263611HANDHELD BLOWING DEVICE AND METHOD OF THEREFOR - A handheld blowing device has a pair of side body members. The pair of side body members forms an interior section when connected together. One end of the pair of side body members is closed and a second end of the pair of side body members form a tapered open end. A blowing fan is positioned in the interior section. A motor is coupled to the blowing fan and positioned in the interior section. A power supply is coupled to the motor and positioned in the interior section.10-18-2012
20120263610ELECTRIC SUBMERSIBLE PUMP (ESP) THRUST MODULE WITH ENHANCED LUBRICATION AND TEMPERATURE DISSIPATION - A thrust module and a seal module for use in an electric submersible pump assembly is provided. The thrust module provides increased lubrication and heat dissipation while increasing sealing redundancies within the module. The thrust module includes a thrust bearing that absorbs thrust from the primary pump. A circulation pump assembly is coupled to the thrust bearing to circulate fluid through the thrust bearing and dissipate heat generated in the thrust bearing through a plurality of fins formed on an exterior surface of the circulation pump assembly. The seal module has labyrinth discs positioned within the seal module that inhibit fluid flow through the seal module. The seal module also includes check valves that release fluid from and allow fluid into the seal module at predetermined pressures. The sealing assembly is interposed between the thrust bearing and a primary pump of the electric submersible pump.10-18-2012
20090016912Internal Gear Fuel Pump - A fuel pump has a housing (01-15-2009
20120230850ELECTRIC PUMP UNIT - A motor housing that accommodates a pump-driving electric motor and a controller that controls the electric motor is fixed to a pump body of a pump that sucks and discharges oil. A sealed motor chamber that accommodates the electric motor is formed within the motor housing. A cooling oil is filled in the motor chamber,09-13-2012
20120230849MOTOR-DRIVEN COMPRESSOR AND MOUNTING METHOD FOR MOTOR-DRIVEN COMPRESSOR - A stator core includes an insertion hole that has an opening in an outer peripheral surface of the stator core and a bent portion in the stator core. A cluster block includes an insertion piece, which is inserted into the insertion hole via the cornered portion. The cluster block is attached to the stator core by engaging the insertion piece with the insertion hole.09-13-2012
20110123373REFRIGERANT COMPRESSOR - Hermetically encapsulated refrigerant compressor (05-26-2011
20110123372VANE PUMP AND EVAPORATIVE LEAK CHECK SYSTEM HAVING THE SAME - An upper casing and a lower casing cooperate together to define a pump chamber, in which a rotor is rotatably received. A surface of the lower casing, which is opposed to one end surface of the rotor in an axial direction of the rotor, has a recess that is recessed for a predetermined amount away from the rotor in the axial direction of the rotor. A surface of a plate portion of the upper casing, which is opposed to the other end surface of the rotor in the axial direction of the rotor, has a recess that is recessed for a predetermined amount away from the rotor in the axial direction of the rotor. An outer peripheral edge of each of the recesses is placed radially inward of an outer peripheral edge of the rotor in an axial view of the rotor.05-26-2011
20110123371VANE PUMP AND EVAPORATIVE LEAK CHECK SYSTEM HAVING THE SAME - An upper casing receives a rotor, which is rotated by a drive force of a motor. The upper casing includes a pump chamber, which receives the rotor, a planar surface portion, which is formed around an opening of the pump chamber, and a through hole. A lower casing includes a planar surface portion, which is formed around the opening of the pump chamber, and a through hole. The lower casing closes the opening of the pump chamber to form the pump chamber in cooperation with the upper casing. A resilient sheet is placed between the lower casing and a mount portion of the motor and includes a through hole. A screw is received through the through holes of the upper casing, the lower casing and the resilient sheet to securely connect the upper casing, the lower casing and the resilient sheet to the mount portion. A lower casing side surface of the resilient sheet includes a plurality of primary protrusions.05-26-2011
20110123370ELECTRIC WATER PUMP - The present invention provides an electric water pump, in which the direction and angle of a volute casing, through which coolant is suctioned and discharged, with respect to an electric motor fixedly mounted in a vehicle body can be freely adjusted during assembly according to vehicle model. The electric water pump of the present invention may preferably include an electric motor for rotating an impeller; a volute cover including an inlet and an outlet and forming a front portion of a spiral chamber; an interface including a mechanical seal, interposed between the electric motor and the interface, and interposed between the electric motor and the volute cover to form a rear portion of the spiral chamber, and a rotatable connection member to allow the interface to be rotated at a desired angle with respect to the electric motor and connected by a bolt such that the direction and angle of the inlet and the outlet of the volute cover are adjusted.05-26-2011
20080298986ELECTRIC COMPRESSOR HAVING MAGNETS DISPOSED IN MAGNET SLOTS OF ROTOR CORE - In a method for assembling an electric compressor which contains a rotor having built-in magnets, magnets in a pre-magnetization state are inserted into a plurality of slots of a magnetizing jib made with a nonmagnetic material. After magnetizing the magnets, the magnetizing jib is fitted to the rotor to have the magnets transferred into magnet slots. A magnetizing method and an assembly method for implementing high reliability electric compressors at low manufacturing cost is implemented12-04-2008
20080298985FUEL PUMP ASSEMBLY FOR A FUEL PUMP MODULE - A fuel pump assembly includes a fuel pump, and an electric motor for rotatably driving the fuel pump and including a motor armature and a commutator positioned between the motor armature and the fuel pump.12-04-2008
20110002799Method for locking a stator lamination in a motor - An electrical submersible pumping system (ESP) having a stator lamination stack that is anchored to prevent the stack from spinning. The ESP includes a motor section having a housing with an axial bore. A groove circumscribes an inner surface of the housing and a snap ring is set in the groove. A portion of the snap ring projects into the bore and exerts an axial compression force onto the lamination stack The snap ring includes a gap that aligns with a bead of material that is set in the groove; engagement between the bead and gap prevents the snap ring from spinning in the groove. The bead, that in an embodiment is a weld, can extend across all or a portion of the groove and can also provide coupling between the lamination stack and the housing.01-06-2011
20110002798FLUID TANK AND FLUID PUMP WITH EXTERIOR MOTOR - A fluid tank assembly may include a fluid tank having a wall defining an internal volume in which a fluid is received and a fluid pump. The fluid pump may have a motor including an electrically driven motor, a pumping element driven to rotate by the motor, a dividing wall disposed between and separating the motor and the pumping element, and a magnetic coupling between the motor and the pumping element and operative through the dividing wall to couple the motor with the pumping element. The motor may be located outside of the internal volume of the fluid tank and the pumping element may be located inside of the internal volume of the fluid tank.01-06-2011
20120269661MOUNTING ARRANGEMENT OF THE SUSPENSION SPRINGS IN A REFRIGERATION COMPRESSOR - The suspension spring mounting arrangement is applied to a refrigeration compressor comprising a shell (10-25-2012
20120128512TURBOCOMPRESSOR SYSTEM - A turbocompressor system including a high speed motor (05-24-2012
20110236235INVERTER MODULE AND INTEGRATED-INVERTER ELECTRIC COMPRESSOR - An object is to provide an inverter module that can ensure satisfactory anti-vibration strength, moisture resistance, and isolation for each of the upper and lower boards of the inverter module and that can reduce the weight and cost, and to provide an integrated-inverter electric compressor. In an inverter module (09-29-2011
20110236234MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a housing, a rotary shaft, a compression mechanism and an electric motor. The housing includes a suction port and a discharge port. The compression mechanism is disposed in the housing and compresses refrigerant flowed through the suction port into the compression mechanism and discharges the refrigerant through the discharge port. The electric motor is disposed in the housing and drives the rotary shaft to rotate to drive the compression mechanism. The electric motor includes a rotor fixedly mounted on the rotary shaft and a stator fixed to the housing. The rotor includes a permanent magnet and a compressor interior environment improvement agent containing at least one of an absorbent for absorbing moisture and a neutralizer for neutralizing acid.09-29-2011
20110236233Double Sealing Labyrinth Chamber for Use With a Downhole Electrical Submersible Pump - A labyrinth seal assembly for an electrical submersible pumping system that communicates downhole pressure to a pump motor while sealing wellbore fluids from the motor. The labyrinth seal assembly includes a chamber circumscribing a pump shaft, labyrinth tubes, upper and lower shaft seals, and inner and outer guide tubes coaxially circumscribing the shaft. One labyrinth tube has an end in fluid communication with the wellbore fluid and another has an end in fluid communication with the pump motor. The labyrinth tubes extend into the chamber from opposite directions and each have an opening distal from where they enter the chamber. A port is provided in the inner guide tube distal from the upper shaft seal, and a port in the outer guide tube is provided proximate the upper shaft seal. Thus a labyrinth path is provided between the upper shaft seal and the chamber.09-29-2011
20100232990CENTRIFUGAL DISCHARGE PUMP WITH BLADED IMPELLER FOR DISHWASHERS AND SIMILAR ELECTRIC HOUSEHOLD APPLIANCES - A centrifugal discharge pump (09-16-2010
20120087814Miniature Heat-Dissipating Fan - A miniature heat-dissipating fan includes a stator and a rotor. The stator has a first leakage flux absorber and a coil layer that is arranged on the first leakage flux absorber and has a plurality of coils. An annular wall is formed on an outer edge of the first leakage flux absorber of the stator to define an air inlet, an air outlet and a compartment. The first leakage flux absorber has a shaft tube in the compartment and the coil layer is mounted around the shaft tube. The rotor is received in the compartment of the stator and has an impeller, a second leakage flux absorber and a permanent magnet. The impeller has a shaft rotatably inserted in the shaft tube of the stator and both the second leakage flux absorber and the permanent magnet are attached to a bottom of the impeller.04-12-2012
20120087812Folding Personal Fan - A personal motorized cooling fan designed to retract and fold into a vertical tower for economy of shipping, storage and desk space. Each fan blade includes a blade portion and a root portion that rides in a race that guides the blades as they splay during rotation. When the fan is turned on, the rotation of the shaft and therefore race, combined with centrifugal force, causes the blades to splay forming a radial array. A protective cage including an array of longitudinal members expands in a fan-like manner. The cage is engaged with ribbons of stretch fabric that retract and fold along with the cage and blades after use. The entire assembly folds tidily into a slender tower.04-12-2012
20120087811MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a shell, an electric motor, a first conductor electrically connected to an external power source, a second conductor electrically connected to the electric motor, a connector connecting the first conductor and the second conductor and a connector case. The connector case has a first case member, a second case member, a first and a second seal members interposed between the first and the second case members, a hole through which the first conductor is inserted and a third seal member sealing between the first conductor and the connector case. A first main seal of the first seal member and a second main seal of the second seal member cooperate to form a cylindrical seal portion for sealing the second conductor that is inserted through the cylindrical seal portion when the first and the second seal members are joined.04-12-2012
20120321492Fan with flexible drive shaft - An electric motor driven fan device has a base member with walls forming an enclosure, an electrically powered motor located within the enclosure and having an output shaft coupled via a bearing mounted in an upper wall of the base member to one end of a flexible drive shaft rotatably enclosed in a bendable sheath secured to the base member. The other end of the flexible drive shaft is coupled via a second bearing to a driven shaft secured to a multi-bladed fan. The other end of the bendable sheath is secured to the outer race of the second bearing. The predominant mass of the device is at the bottom, which reduces the footprint of the lower portion. The bendable sheath enables the attitude of the fan to be manually adjusted.12-20-2012
20120093667Power Cable For High Temperature Environments - An electrical power cable for high temperature environments comprises two or more sheathed conductors; each sheathed conductor comprising an electrical conductor, an electrical insulator surrounding the electrical conductor, and a sheath surrounding the electrical insulator; and a bonding material interconnecting the sheaths of the two or more sheathed conductors positioned adjacent to one another to form a cable.04-19-2012
20120328459PUMP - The invention relates to a pump (12-27-2012
20120100020HERMETIC COMPRESSOR - There is provided a hermetic compressor capable of supplying oil even in a low-speed operation. The hermetic compressor includes a hermetic contained filled with oil in a base thereof, a rotatably crank shaft having a screw-shaped oil groove in an outer portion thereof, and an oil feeder having an upper portion in which a lower portion of the crank shaft is inserted, the oil feeder having a lower portion immersed in oil of the hermetic container.04-26-2012
20120100019Motor - A motor including a casing, a rotor, a stator and a separation member is disclosed. The rotor is rotatably coupled with the casing. The stator is disposed in the casing and drives the rotor to rotate. The stator includes a claw-pole member, an insulation member and a coil unit. The claw-pole member is coupled with the insulation member. The insulation member has a connection portion. The coil unit has a plurality of windings connected to each other via the connection portion. The coil unit is electrically connected to a circuit board, and a portion of the coil unit that is wound around the connection portion is an exposing portion. The separation member is disposed between the exposing portion of the coil unit and the casing.04-26-2012
20120288384HEAT-DISSIPATION FAN - A heat-dissipation fan includes a first plate, a second plate, a ring wall, a spacing rib, a stator and a fan wheel. The first plate comprises a vent, and an accommodating space can be defined by the first plate, the second plate and the ring wall. The spacing rib is disposed at the accommodating space. A passage is formed between the spacing rib and the ring wall, and an end portion of the spacing rib and the ring wall are spaced apart to form an opening. The passage is in communication with the vent, and the opening is in communication with the passage and the accommodating space. The fan wheel can be driven by the stator, and the dust adhered to the accommodating space may be discharged through the opening, the passage and the vent via airflow generated by rotating fan wheel.11-15-2012
20120288383AIR FEED BLOWER, ESPECIALLY FOR A VEHICLE HEATER - An air feed blower, especially for a vehicle heater, includes an electrically driven blower drive motor (11-15-2012
20120288382SEALED COMPRESSOR - A sealed compressor comprises an electric element; a compression element; and a sealed container accommodating the electric element and the compression element; wherein the compression element includes a cylinder block defining a compression chamber; a piston which is reciprocatable inside the compression chamber; and a valve plate disposed to close an opening end of the compression chamber and having a discharge hole which provides communication between inside and outside of the compression chamber; the piston has a first groove on a tip end surface thereof which faces the valve plate, the first groove having a predetermined width and extending from an outer peripheral edge portion of the tip end surface toward a portion of the tip end surface which faces the discharge hole; and a tip end portion of the first groove is positioned in the portion of the tip end surface which faces the discharge hole and is inclined.11-15-2012
20100183457INVERTER-INTEGRATED ELECTRIC COMPRESSOR - Provided is a highly reliable inverter-integrated electric compressor that is capable of suppressing electromagnetic noise interference from a power-system metal board on which a semiconductor switching devices are bare-mounted and preventing malfunction of the inverter device. In an inverter-integrated electric compressor in which an inverter accommodating section provided on a housing accommodates an inverter device, the inverter device includes an inverter module in which a power-system metal board on which at least semiconductor switching devices are bare-mounted and a CPU board on which is mounted a control and communication circuit having a device operating at low voltage, such as a CPU, are modularized via a resin case, wherein the inverter module has a metal shield plate supported by the resin case and interposed between the power-system metal board and the CPU board.07-22-2010
20130011281ELECTRICALLY DRIVEN GAS COMPRESSOR - A horizontal type electrically driven gas compressor includes an electric motor installed in a suction chamber of a housing, a gas compression mechanism section installed in the housing and driven by the electric motor, a sucked refrigerant guide path for guiding a refrigerant from the suction chamber to the gas compression mechanism section, and a lubricating oil supply path for supplying a lubricating oil, which has been collected and stagnated in a bottom portion of the suction chamber, to the sucked refrigerant guide path, the lubricating oil supply path fluidly connecting the sucked refrigerant guide path and the bottom portion of the suction chamber at the position of the bottom portion of the suction chamber.01-10-2013
20130011280AXIAL FLOW COMPRESSOR - An axial flow compressor includes: an electric motor including a rotating shaft; a compression portion including a driving shaft connected without a speed-up gear to the rotating shaft of the electric motor and a rotor rotating together with the driving shaft, the compression portion driving the driving shaft and thereby compressing a working fluid; and a velocity reducing portion having a space for reducing the flow velocity of a working fluid discharged from a discharge opening of the compression portion. The rotating shaft of the electric motor is connected to the end of the driving shaft on the side of the discharge opening; and the velocity reducing portion is disposed so as to surround the electric motor.01-10-2013
20130011278SEALING GROMMET FOR CONNECTION BETWEEN TERMINAL HOUSING AND INTERIOR OF SEALED COMPRESSOR - A sealed compressor has an electric motor received within a hermetically sealed shell. The electric motor drives a compressor pump unit. An electric connection provides electric power to the motor. A terminal housing is mounted on the shell, with a terminal plug for supplying electrical power from outside of the shell into a connector within the shell. A grommet is at an opening in the shell which allows passage of the electric connector from the terminal plug to the electric connection. The grommet has a first surface positioned on an opposed side of a wall of a housing spaced from the shell, and a second surface sealing against the shell. The grommet has an interior portion allowing passage of the electrical connections from the terminal plug into the electric connector within the shell.01-10-2013
20090162223SUBMERSIBLE PUMP - A bore-hole pump has an electrical drive motor (06-25-2009
20130017103MOTOR PUMPAANM KODAMA; TakuroAACI Ueda-cityAACO JPAAGP KODAMA; Takuro Ueda-city JPAANM YAMASHITA; TadashiAACI Ueda-cityAACO JPAAGP YAMASHITA; Tadashi Ueda-city JPAANM TANAKA; TomohideAACI Ueda-cityAACO JPAAGP TANAKA; Tomohide Ueda-city JP - A motor pump includes a base body, a pump, and a motor. The motor includes a tubular yoke having a bottom and an opening on a base body side, a bearing, a rotation shaft, a rotor, a commutator, a brush and a brush shaft. The bearing is fitted to an inside of a bearing hole of the base body, The brush holder is fitted to an inside of the yoke and engages with an outer peripheral surface of the bearing. The brush holder and the bearing are disposed so as to be spaced from the base body in an axial direction of the rotation shaft. The motor-side seal member is provided between the yoke and the base body. The base body constitutes a stopper that prevents the brush holder from being extracted from the yoke.01-17-2013
20110158831FAN AND MOTOR THEREOF - A motor including a bearing structure, a rotor structure, a stator structure and a magnetic body is disclosed. The rotor structure includes a shaft disposed on the bearing structure. The stator structure is disposed corresponding to the rotor structure. The magnetic body is disposed opposite to the shaft and includes a first magnetic element and a second magnetic element. The first magnetic element is disposed around the second magnetic element. A fan including the motor is disclosed as well. The shaft of the fan and the motor thereof are provided with higher axial attraction in operation such that it reduces the abrasion of the shaft and the noise of the motor and the fan.06-30-2011
20130136633ELECTRIC MOTOR AND ELECTRIC UNIT INCLUDING THE SAME - A pump housing, a fixing member and a holding member are assembled in the axis direction of an oil pump to fix a stator and a rotor of a brushless motor. The holding member is made of metal material and has a cylindrical shape that extends from its bottom portion toward one side in the axial direction. The fixing member is a cylindrical metal member. Stepped portions, extending in the circumferential direction, are formed in the outer periphery of the holding member and the inner periphery of the fixing member, and contact each other. The outer periphery of the holding member engages with the inner periphery of the fixing member. The outer periphery of the other end portion of the fixing member is fitted to the inner periphery of a flange portion projecting from the end face of the pump housing, which is adjacent to the brushless motor.05-30-2013
20130136631FAN - A fan includes blades and a motor. The motor includes a rotor holder; a shaft; a sleeve; a holder; and a thrust plate. A radial bearing portion arranged to support the shaft in a radial direction is defined in a radial gap defined between the shaft and the sleeve. A lower seal portion having a lower surface of a lubricating oil defined therein is defined between the thrust plate and the holder, while an upper seal portion having an upper surface of the lubricating oil defined therein is defined between the holder and the sleeve. The holder includes a connection channel defining portion arranged to define a connection channel to connect an upper space defined between the upper seal portion and an inside of the rotor holder with a lower space at which the lower seal portion is arranged.05-30-2013
20130142680ELECTRIC PUMP - An electric pump includes a motor, a bracket including a support surface arranged to be perpendicular to a rotation shaft of the motor and a bush attachment bore provided to be perpendicular to the support surface, and a bush fitted to the bush attachment bore. The bush attachment bore includes a base portion formed in a shape similar to a portion of the bush fitted to the bush attachment bore, the bush attachment bore including an expansion portion integrally formed with the base portion and extending in a circumferential direction of the motor.06-06-2013
20110274570HIGH-PRESSURE CLEANING DEVICE - A high-pressure cleaning device has a housing which surrounds a motor pump unit which comprises a liquid-cooled electric motor and a pump. The pump has a suction inlet and a pressure outlet. Liquid, which is subsequently subjected to pressure by the pump, can be supplied to the electric motor for the purpose of cooling it. The electric motor is configured as a fan-less asynchronous motor and the motor pump unit is mounted via vibration-damping buffer elements.11-10-2011
20110274569HERMETIC COMPRESSOR AND MANUFACTURING METHOD THEREOF - A hermetic compressor is provided. The hermetic compressor may include a hermetic container; a stator shrink fitted and fixed to an inner wall of the hermetic container; a rotor rotatably provided at an inner portion of the stator; a crankshaft combined with the rotor; a compression device combined with the crankshaft that draws in and compresses refrigerant and discharges the refrigerant to an inner space of the hermetic container; a bearing positioned to be separated from the compression device on the crankshaft; and a bearing support shrink fitted and fixed to an inner wall of the hermetic container that supports the bearing. An outer diameter of the stator and an outer diameter of the bearing support may be larger than an inner diameter of the hermetic container.11-10-2011
20110274568Blower for a dehumidifier - A blower for a dehumidifier has a casing, a cover, a small low-voltage motor and a fan. The fan is mounted between the casing and the small low-voltage motor. The cover is mounted on the small low-voltage motor and the fan. The fan draws air in axially from the casing and exhausts air out radially from the cover. Since the small low-voltage motor is directly attached to the cover, the blower has simplified structure. Furthermore, because the fan is mounted between the small low-voltage motor and the casing, the airflow does not pass through the small low-voltage motor. Therefore, dust does not collect on the small low-voltage motor.11-10-2011
20130177458DRY-TYPE CABLE WIRE OUTLET DEVICE FOR A SUBMERSIBLE ELECTRICAL PUMP - A dry-type cable wire outlet device for a submersible electrical pump includes a wire outlet box positioned in a wellbore, a cable protection pipe, a wire outlet sealing device and a cable. The wire outlet box is connected to the top of a submersible electrical pump. One end of the cable protection pipe is connected to the top of the wire outlet box, and the other end extends out of the well cover of the wellbore. The cable is positioned in the cable protect pipe and connected with the submersible electrical pump through the wire outlet box. The wire outlet sealing device is connected to the well cover, and an end of the cable protection pipe extending outside the well cover is positioned in the wire outlet sealing device. When the device is in use, the opening at the top end of the cable protection pipe is no longer exposed.07-11-2013
20080213106Lifting Piston Fuel Pump and Method for Starting and Operating a Motor Vehicle Heating System - The invention relates to a reciprocating piston fuel pump (09-04-2008
20130136632MOUNTING ASSEMBLY FOR AN ELECTRIC FAN - A mounting assembly for a ceiling fan, adapted to attach a rotating fan blade assembly to a ceiling suspension and electric motor assembly, said electric motor assembly including an electrical rotor and an electrical stator, said stator being horizontally disposed within said rotor and connected to said rotor via a double row angular ball bearing.05-30-2013
20130094979Multi-Mode Motor For Switching Among Motor Power Supplies - A motor is configured to operate in one of at least two modes in response to determining that a power provided by a power supply for the motor crosses certain thresholds. For example, first and second windings apply a rotating force to a rotating armature of a single motor. The first and second windings are electrically coupled to first and second commutators, respectively, which transmit power to the first and second windings from a first and second power source, respectively. In other aspects, different power sources power the motor, and the motor operates at different speeds depending on the power source applied. For example, the change in power sources is effected in response to detecting a change in applied power past a threshold, thus effecting the motor's operation in a second, different speed. So configured, a single motor can reduce deployment of bulky and expensive add-on equipment.04-18-2013
20130101447CENTERING COUPLING FOR SPLINED SHAFTS SUBMERSIBLE PUMPING SYSTEMS AND ELECTRICAL SUBMERSIBLE PUMPS - A submersible pumping system, electrical submersible pump, and method of providing enhanced alignment of motor and driven shafts of submersible pumping systems and electrical submersible pumps, are provided. An example of an electrical submersible pump system includes a pump, a pump motor, and a seal section. The motor drives the pump via motor and driven shafts rotatingly coupled with a coupling assembly. The coupling assembly maintains the shaft ends in coaxial alignment with an alignment device. The alignment device is profiled on opposite ends for mating engagement with the centering profiles extending into the shaft ends.04-25-2013
20130101446HIGH EFFICIENCY IMPELLER - An impeller vane includes at least one groove on a high pressure or working surface of the impeller vane to increase pump efficiency and reduce pump power requirements. The impeller vane includes a groove or a plurality of grooves formed on the high pressure surface of the vane. The grooves extend from a leading end of the vane to a trailing end of the vane. The grooves define ridges on either side of each groove that extend the length of the groove.04-25-2013
20130121856ROTOR AND MOTOR - A rotor includes a first rotor core, a second rotor core, a field magnet, and an auxiliary magnet. The first rotor core includes a first core base and a plurality of first hook-shaped poles. The second rotor core includes a second core base and a plurality of second hook-shaped poles. The first and second hook-shaped poles are alternately arranged in a circumferential direction of the rotor. The field magnet is arranged between the first and second core bases in an axial direction. The field magnet cause the first hook-shaped poles to function as first poles and the second hook-shaped poles to function as second poles. The auxiliary magnet includes at least two interpolar magnet portions, which are integrally formed. Each interpolar magnet portion is arranged in a void between the first hook-shaped pole and the second hook-shaped pole and magnetized in the circumferential direction.05-16-2013
20130129538MINIATURIZED SYRINGE PUMP SYSTEM AND MODULES - Provided is a liquid handling device for use in a liquid handling system including a plurality of the liquid handling devices assembled in side-by-side relationship at a center-to-center spacing of X. The device includes a barrel, plunger, motive device and electronics assembled together in an envelope having a front portion including at least the barrel and plunger, and a rear portion including at least a portion of the electronics. The rear portion has a thickness greater than X but no greater than 2X, and the front portion has a thickness no greater than X and is laterally offset relative to a center plane of the envelope, whereby the liquid handling device can be assembled with another reversely oriented liquid handling device at a center-to-center spacing of X and a total combined width no greater than 2X.05-23-2013
20130129537REFRIGERANT COMPRESSOR - A refrigerant compressor according to the present invention is configured that at least one member constituting an electric element and a compression element is made of a rubber material. This rubber material is nitrile rubber, in which: Condition 1: bound acrylonitrile content is within a range of 35 to 51% by weight; Condition 2: organic compound having carbon atom, which is capable of creating double bond with sulfur atom, nitrogen atom or carbon atom and is also capable of creating single bond with sulfur atom or nitrogen atom, is not used as a vulcanizing accelerator in the process for creating cross-linkage; and Condition 3: no phthalic ester is contained.05-23-2013
20130129536Flow Locking System and Method - Embodiments of the invention provide a pumping system and method including a flow locking feature. A pump controller includes a user interface configured to initially receive and set a plurality of programmed flow rate settings, a maximum locked flow rate, and a minimum locked flow rate. The pump controller is also configured to disable resetting of the maximum flow rate and the minimum flow rate once they are initially received and set and to allow resetting of the plurality of programmed flow rate settings throughout operation of the pumping system. The pump controller is further configured to operate a pump motor in order to maintain a first flow rate set by one of the plurality of programmed flow rate settings as long as the first flow rate is between the minimum locked flow rate and the maximum locked flow rate.05-23-2013
20080199330ELECTRIC SHOWER-WASTE PUMP AND CONTROL UNIT - An electric shower-waste pump and control unit for pumping run-off shower water from a waste outlet to a drain, the unit comprising a housing having a first chamber and a separate second chamber which is water-tightly sealable, a removable housing cover for closing the housing, an electric pump provided in the first chamber, electronic control circuitry provided in the second chamber, and a removable second chamber cover for water-tightly sealing the second chamber against ingress of water leakage from the pump.08-21-2008
20110223043PIEZOELECTRIC FAN AND COOLING DEVICE - A piezoelectric fan includes reinforcing plates that increase the rigidity of a portion of the vibrating plate corresponding to a gap between a piezoelectric element and a fixing plate. First ends of the reinforcing plates are attached to portions of the vibrating plate on both sides of piezoelectric elements in the width direction, and second ends of the reinforcing plates are attached to a fixed end of the vibrating plate such that the second ends and the fixing plate sandwich the fixed end of the vibrating plate therebetween and such that the reinforcing plates extend over the gap. The reinforcing plates prevent vibration of the portion of the vibrating plate corresponding to the gap, prevent a portion of vibration energy generated by expansion and contraction of the piezoelectric elements from being consumed in the portion corresponding to the gap, and increase the amplitude of the vibration of blade ends.09-15-2011
20110229355FUEL PUMP - A fuel pump has collar members, which are inserted in end portions of brush insertion holes of an end cover on an opposite side from brushes. The fuel pump has brush terminals press-fitted into the collar members. The brush terminals are connected to annular terminals, which are inserted in a secondary mold member by molding. Tip end portions of the collar members are press-fitted into the secondary mold member. Because of the press-fitting, an insulative resin intervenes between the brush terminals or between the annular terminals, to which different voltages are applied. Accordingly, passage of a leak current through fuel can be prevented, and electric corrosion can be prevented.09-22-2011
20110250082HERMETIC COMPRESSOR - A compression device a rotor and stator in a case, a shaft coupled to the rotor, and a compressor coupled to the shaft to suction, compress, and discharge refrigerant within the case. At least one bearing is used to support the shaft, and the shaft has a diameter that is 0.114 times equal to or larger than and 0.138 times equal to or smaller than an outer diameter of the stator at at least one reference position.10-13-2011
20120275940PORTABLE FAN - Portable battery-operated fan comprises a two-part base of which the lower part can be detached to allow the fan to stand on its own or attached to permit the fan to be placed in a cup or bottle holder. A facsimile of an element of sports apparatus such as a golf ball, basketball, or bowling pin is pivotally attached to the fan and provides a mounting place for a DC motor which is driven by a battery in the lower base. A shrouded fan is attached to an end or a side of the sports apparatus facsimile so as to provide cooling air flow on demand.11-01-2012
20120275939Electrically Driven Compressor System for Vehicles - An electrically driven compressor system for vehicles has a hollow shell, inside which there is a transmission set and a scroll set. The outer surrounding of the hollow shell is formed with a chamber. A control circuit board is disposed in the chamber. A processing chip is provided on the side of the control circuit board that faces the bottom of the chamber. A thermal paste is coated on the end surface of the processing chip towards the bottom of the chamber. The end surface of the processing chip with the thermal paste coating urges against the bottom surface of the chamber.11-01-2012
20120275938VENTILATING FAN - A ventilating fan comprises a ventilating fan body, a ventilating fan mounting member, and a power supply case. A power supply wire disposed in the ventilating fan body to be connected to a blower is provided with an internal terminal at a leading end of the power supply wire. The power supply case projects from the power supply opening to be located outside the cylinder of the ventilating fan mounting member, and is fixed to the ventilating fan mounting member from the indoor side. An external terminal is mounted on an indoor side of the power supply case. An external electric wire for supplying electric power to the ventilating fan is connected with the external terminal in the power supply case, and the internal terminal is connected with the external terminal, so that the connection operation becomes simpler.11-01-2012
20100284835PUMP GEAR AND PUMP ASSEMBLY FOR A GENERATOR - A pump gear includes a pump gear body having involute teeth that each have an involute surface that extends between a tooth tip and a tooth base. The involute surface includes at least reference points A-D, with reference point A near the base, reference point D near the tip, reference point B between reference points A and D, and reference point C between reference points B and D. The reference points A-D have associated respective roll angles, ε11-11-2010
20100316511CENTRIFUGAL FAN - A centrifugal fan is provided, in which the value of static pressure with respect to the flow rate, namely, the flow rate-static pressure characteristic may be set to a relatively arbitrary value without increasing noise. An impeller of the centrifugal fan comprises an impeller body, a plurality of stems, a blade mounting member, a plurality of main blades, and a plurality of sub blades. The main blades are shaped to suck air into a casing through a suction port when the impeller rotates in a direction of normal rotation. The sub blades are shaped to suck air into the casing through the suction port when the impeller rotates in a direction of reverse rotation opposite to the direction of normal direction.12-16-2010
20130156617Short-Shaft Electric Compressor - The invention relates to an electric compressor (06-20-2013
20130156615SELF CONTAINED ELECTROOSMOTIC PUMP AND METHOD OF MAKING THEREOF - A pump comprises a plurality of electroosmotic membranes comprising one or more positive electroosmotic membranes and one or more negative electroosmotic membranes; and a plurality of electrodes comprising one or more cathodes and one or more anodes. The electrodes are pre-charged, chargeable, rechargeable or combinations thereof and the cathode and anode are operatively coupled to each other. The positive electroosmotic membranes and negative electroosmotic membranes are disposed alternatively and at least one cathode is disposed on one side of one of the membranes and at least one anode is disposed on another side of that membrane, and wherein at least one cathode or anode is disposed between a positive electroosmotic membrane and a negative electroosmotic membrane. The pump is an electroosmotic pump.06-20-2013
20130156616THIN FAN AND MANUFACTURING METHOD THEREOF - A manufacturing method of a thin fan comprises the steps of: providing a plastic material containing a plurality of metal particles; molding the plastic material into a housing; removing a part of a surface of the housing to form a circuit layout area at the housing; and forming a metal layer in the circuit layout area.06-20-2013
20120282121PLURAL COMPONENT PUMP SYSTEM - A plural component pump system is provided for delivering plural liquid components at a selected ratio. The pump system includes a first brushless DC motor configured to drive a first pump that pumps a first liquid component to an output and a second brushless DC motor configured to drive a second pump that pumps a second liquid component to the output. The pump system includes a first controller configured to control the first motor and a second controller configured to control the second motor. The pump system also includes a communication interface between the first controller and the second controller. The first controller is configured to send a signal to the second controller using the communication interface and the second controller is configured to control the second motor based on the signal to deliver the first and second liquid components to the output at the selected ratio.11-08-2012
20120282120ELECTRIC CABLE, ELECTRIC MOTOR AND ELECTRIC SUBMERSIBLE PUMP - In accordance with one aspect of the present invention, an electric motor is provided that includes a housing, a stator, and a rotor, wherein the stator and rotor are disposed within the housing. The housing, the stator, and the rotor define an internal volume within the housing, said internal volume configured to receive a dielectric fluid. The electric motor further includes at least one electric cable configured to electrically power the electric motor, wherein the electric cable includes at least one electrical conductor disposed within at least one protective layer, and wherein the electrical conductor and the protective layer define at least one channel configured to deliver the dielectric fluid to the internal volume. An electric submersible pump system is also provided.11-08-2012
20130183173POSITIVE DISPLACEMENT PUMP - A positive displacement pump (07-18-2013
20130183174SOLENOID PUMP - A solenoid pump for moving a fluid is disclosed. The pump includes a solenoid coil that generates an electromagnetic field for moving a plunger relative to a stationary core. Magnetic components of the solenoid pump direct the electromagnetic field to provide a substantially balanced magnetic force on the plunger.07-18-2013
20110311381Solid State Sump Pump Control - The present invention provides a sump pump control system. The system includes a mounting fixture fabricated from a corrosion resistant material, and an electrical control comprising solid state electrical components supported by the mounting fixture. The sump pump control system also includes a diving bell cover. The diving bell cover has an open bottom, and is dimensioned to cover the electrical components. The diving bell cover is releasably secured to a support surface of the mounting fixture. The electrical control controls the operation of a sump pump. Should water rise to a level of the electrical components due to failure of the sump pump or due to quickly rising water, the diving bell cover will prevent water from contacting the electrical components. A method of removing water from a subterranean vault is also provided herein.12-22-2011
20110311380PUMP ASSEMBLY - An electric motor includes a housing and at least one heat pipe for dissipating heat is integrated in the housing. Substantially all functional elements of the motor are disposed in the housing.12-22-2011
20120288381MODULATING LIQUID PUMP - The present invention relates to a modulating liquid pump. This pump comprises an inlet port for receiving a liquid and an outlet port for delivering said liquid, an electromagnetic pump placed between the inlet port and the outlet port and comprising a piston for pumping said liquid, said modulating pump further including a regulating means, for regulating the pressure of the liquid. This pump is noteworthy in that said regulating means is of the electric type and is capable of regulating the travel of said piston according to an electrical setpoint signal (Vc). Application to fuel oil burners.11-15-2012
20120020819BUSH BEARING FABRICATING METHOD THEREOF AND HERMETIC COMPRESSOR HAVING THE SAME - Disclosed are a bush bearing, a fabricating method thereof and a hermetic compressor having the same. A lubricant member of the bush bearing can be adhered onto a housing or press-fitted therein so as to remarkably increase the thickness of the lubricant member, whereby the bush bearing can be more resistant to abrasion, and upon applying the same to the compressor, abrasion of a crank shaft or the bush bearing can be reduced.01-26-2012
20120020818AIR COMPRESSOR STRUCTURE FOR PAINT SPRAYING - An air compressor structure for paint spraying includes: a housing having an internal receiving space; an envelope body mated with the housing and having an internal chamber and an outlet in communication with the chamber; a magnetization unit disposed in the receiving space, the magnetization unit including a main body and at least one magnetic member disposed on the main body, the main body having a first end and a second end, a first winding assembly and a second winding assembly being respectively positioned on two sides of the magnetic member; and a first membrane and a second membrane disposed in the receiving space and arranged beside the first and second ends of the magnetization unit. The magnetization unit can reciprocally drive the first and second membranes to vibrate and produce compressed air. The compressed air is output and directly supplied to a paint spray gun for paint spraying operation.01-26-2012
20120027629FUEL PUMP - A fuel pump has a motor portion and a pump portion, wherein fuel is sucked from an inlet port into the pump portion when an impeller is rotated and the pressurized fuel is discharged out of the fuel pump from an outlet port. A stator has multiple stator cores on which respective stator coils are wound to form a star-connection winding. A terminal sub-assembly is provided in an axial side portion of the stator. The terminal sub-assembly has multiple conductive members and each end portion of the stator coils is respectively connected to connecting portions of the conductive members, which are arranged at equal intervals in a circumferential direction of the terminal sub-assembly.02-02-2012
20130195695HOLLOW ROTOR MOTOR AND SYSTEMS COMPRISING THE SAME - In one or more embodiments, the present invention provides electric motors and related systems comprising (a) a motor housing; and (b) a hollow rotor configured to rotate within and be driven by a stator contained within the motor housing; wherein the motor housing is characterized by a largest cross-sectional area of the motor housing, and wherein the hollow rotor defines a flow channel characterized by a smallest cross-sectional area of the flow channel, wherein the smallest cross-sectional area of the flow channel is at least 25% of the largest cross-sectional area of the motor housing, and wherein the hollow rotor has a first end portion defining a fluid inlet, and a second end portion defining a fluid outlet; the fluid inlet, the flow channel and the fluid outlet being configured to allow passage of a fluid from the fluid inlet to the fluid outlet via the flow channel.08-01-2013
20130195696ELECTRIC PUMP - To provide an electric pump that does not easily suffer malfunction of its driver due to vibration and whose components can be reduced in number, an electric pump includes a pump unit, a motor unit for driving the pump unit, and a driver chamber having a driver for controlling the pump unit. At least a space inside the driver chamber on one side of a substrate of the driver is filled with an amount of potting material for anchoring the substrate, whereas a space inside the driver chamber on the other side of the substrate is left as an unfilled space free from filling with potting material along the face direction of the substrate.08-01-2013
20130202461MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a connector-receiving portion provided on the outer surface of a housing. A wiring connection portion is provided in the connector-receiving portion and supplies electricity from an external power source to a motor drive circuit. The wiring connection portion includes a first terminal, a second terminal, and a metal plate for connecting the first and the second terminals to each other. The first and the second terminals have a first end-connection portion and a second end-connection portion, respectively. The second end-connection portion of the first terminal is electrically connected to the external power source, and the second end-connection portion of the second terminal is electrically connected to the motor drive circuit.08-08-2013
20130202462MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a wiring connection portion provided in a connector-receiving portion and adapted for supplying electricity from an external power source to a motor drive circuit. The wiring connection portion includes first and second terminals, each of which has a first end-connection portion at an end and a second end-connection portion at another end. The second end-connection portion of the first terminal is electrically connected to the external power source, while the second end-connection portion of the second terminal is electrically connected to a conductive member. The wiring connection portion further includes a coupling member coupling the first and second terminals. The coupling member includes a first metal plate connected to the first end-connection portion of the first terminal, a second metal plate connected to the first end-connection portion of the second terminal, and a wire mesh coupling the first and second metal plates.08-08-2013
20120063935Inverter-Integrated Electric Compressor - An inverter-integrated electric compressor configured in such a manner that a motor is incorporated within a compressor, a control circuit board is provided to an inverter section which is provided with a motor drive circuit for driving the motor, and electric component parts including the control circuit board is fixed within a containment space surrounded by a compressor housing, wherein the control circuit board is fixed within the housing space through a board-fixing section, and a board vibration-isolating member, said board vibration-isolating member consisting of an electrically insulative elastic material, is provided between the control circuit board and the board-fixing section. A frame member having a convcave holding section may be loaded on the control circuit board, and a board vibration-isolating member, said board vibration-isolating member consisting of an electrically insulative elastic material, may be provided between the control circuit board and the frame member. The inverter-integrated electric compressor has highly reliable performance and configured in such a manner that the vibration of the control circuit board of the motor drive circuit is suppressed as much as possible.03-15-2012
20120063934Electrical Submersible Pump System Having High Temperature Slot, End Bell and Phase-to-Phase Insulation - Electric submersible well pumping systems operable in well temperatures of above about 180° C. (356° F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed around magnet wires that are threaded through slots in the stator. Slot insulation of E-base polyimide or perfluoropolymer TE film surrounds the magnet wires in the stator slots. Sheets of E-base polyimide or perfluoropolymer TE film extend around and between phase loops of the magnet wire at the lower end of the stator. The motor contains a PAO oil having additives to dissipate acid generated by epoxy used in the motor.03-15-2012
20120063933Electrical Submersible Pump System Having Improved Magnet Wire Leads - Electric submersible well pumping systems operable in well temperatures of above about 180° C. (356° F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed around magnet wires that are threaded through slots in the stator. Slot insulation of E-base polyimide or perfluoropolymer TE surrounds the magnet wires in the stator slots. Sheets of E-base polyimide or perfluoropolymer TE film extend around and between phase loops of the magnet wire at the lower end of the stator. The magnet wires in the stator have lead portions that extend The motor contains a PAO oil having additives to dissipate acid generated by epoxy used in the motor.03-15-2012
20120063932Electrical Submersible Pump System Having High Temperature Insulation Materials and Buffered Lubricant - Electric submersible well pumping systems operable in well temperatures of above about 180° C. (356° F.) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed around magnet wires that are threaded through slots in the stator. Slot insulation of E-base polyimide or perfluoropolymer TE film surrounds the magnet wires in the stator slots. Sheets of E-base polyimide or perfluoropolymer TE film extend around and between phase loops of the magnet wire at the lower end of the stator. The motor contains a PAO oil having additives to dissipate acid generated by epoxy used in the motor.03-15-2012
20120093666Systems and Methods for Insulating Y-Points of Three Phase Electric Motors - Systems and methods for insulating the Y-points of three-phase electric motors commonly used in ESP systems, in which the Y-points are not grounded or tied to a reference voltage, and may consequently experience high voltages. One embodiment is an apparatus for insulating the Y-point of the motor using an electrically insulating enclosure. The enclosure has apertures that extend from a cavity therewithin the to the exterior of the enclosure. The cavity accommodates the Y-point of the motor. The conductors which are connected at the Y-point junction extend from the cavity to the coils of the three-phase motor, and possibly to an instrument package. Seals are formed at the apertures to provide an electrically insulating barrier between the Y-point and the exterior of the enclosure. The cavity may be filled with an insulating material such as potting compound or oil.04-19-2012
20130209290ELECTRIC SUBMERSIBLE PUMPING SYSTEM FOR DEWATERING GAS WELLS - A pumping system includes a submersible high speed electric motor operable to rotate a drive shaft; a high speed pump rotationally fixed to the drive shaft; an isolation device operable to expand into engagement with a tubular string, thereby fluidly isolating an inlet of the pump from an outlet of the pump and rotationally fixing the motor and the pump to the tubular string; and a cable having two or less conductors, a strength sufficient to support the motor, the pump, and the isolation device, and in electrical communication with the motor. A maximum outer diameter of the motor, pump, isolation device, and cable is less than or equal to two inches.08-15-2013
20130209291TURBOCHARGER SYSTEM - A turbocharger system includes: a high-pressure stage turbocharger including a high-pressure stage turbine disposed on an exhaust passage and driven by exhaust, and a high-pressure stage compressor disposed on an intake passage and driven by a rotational torque of the high-pressure stage turbine; and a low-pressure stage turbocharger including a low-pressure stage turbine disposed on the exhaust passage of a more downstream side than the high-pressure stage turbine and driven by exhaust, and a low-pressure stage compressor disposed on the intake passage of a more upstream side than the high-pressure stage compressor and driven by a rotational torque of the low-pressure stage turbine, wherein the high-pressure stage turbocharger includes an electric motor that assists a drive force of the high-pressure stage compressor.08-15-2013

Patent applications in class Electric or magnetic motor

Patent applications in all subclasses Electric or magnetic motor