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INCLUDING SHAFT TRANSMISSION TRAIN, BRAKE, CLUTCH, OR ATTENDANT ACTUATED DRIVE MEANS

Subclass of:

415 - Rotary kinetic fluid motors or pumps

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
415122100INCLUDING SHAFT TRANSMISSION TRAIN, BRAKE, CLUTCH, OR ATTENDANT ACTUATED DRIVE MEANS88
20110188996CENTRIFUGAL PUMP - A sealless-type centrifugal pump provides a centrifugal pump that is free from leakage without using a shaft seal mechanism. The centrifugal pump includes a casing that forms a pump chamber having a liquid inflow port and an outflow port, an impeller disposed in the pump chamber and rotatably supported by a pivot bearing, and a magnetic coupling device including a driven permanent magnet built into the impeller and a driving magnet that rotationally drives the driven permanent magnet through a partition. The impeller supported in the direction of the rotation axis with respect to the casing is driven by the magnetic coupling device, and pressure is applied to liquid introduced from the direction of the rotation axis through the inflow port to send the liquid through the outflow port in a radial direction. The magnetic coupling device is disposed on a line inclined from an impeller rotating surface to the inflow port side toward the center of the rotation axis.08-04-2011
20130039745CENTRIFUGAL PUMP - A centrifugal pump that comprises a casing in which an impeller is arranged. The impeller has a back side that faces a back plate of the centrifugal pump, and one or more vanes for pumping the fluid. The back side of the impeller comprises a segmented scraper for scraping from the back plate material that has been deposited from the fluid. The segmented scraper comprises multiple protrusions, wherein each protrusion of the multiple protrusions is facing the back plate, and an aggregated radial extension of the protrusions equals a radius of the impeller within an interval of ±10%, ±25% or even up to ±40%.02-14-2013
20080253880Counter-rotation drive - The mechanical counter-rotation drive according to the present invention is based on the laws of relative motion of an eccentric part of one of at least two shafts, which are constitutive parts of this drive, with respect to the plates of a determined shape whose motion is confined by pins arranged in a determined arrangement, is illustrated in FIG. 10-16-2008
20100061839SHAFT COUPLING ARRANGEMENT - A shaft coupling arrangement and a corresponding method for coupling shafts are disclosed herein. The shaft coupling arrangement includes an input shaft operable to rotate about a first axis. The shaft coupling arrangement also includes an output shaft operable to rotate about a second axis. The shaft coupling arrangement also includes a gearing arrangement operable to engage the input and output shafts together for rotation in the same angular direction at different angular speeds. In one embodiment of the invention, the gearing arrangement includes a plurality of nested bevel gears. In another embodiment of the invention, the gearing arrangement can include a single layshaft.03-11-2010
20130084164POWER GENERATION APPARATUS - A power generation apparatus includes an expander and a power transmission shaft that extracts a rotational driving force generated by the expander to the exterior of a housing of the expander. The housing of the expander contains a driving unit of the expander within a space enclosed by a partition wall of the housing. The power transmission shaft includes a magnetic coupling, divided between the interior and exterior of the housing of the expander through the partition wall. The rotational driving force extracted via the magnetic coupling is used as auxiliary power that supplements the power of a driving source provided separately from the expander when driving a rotating machine using the power of the driving source. A clutch mechanism and a speed variator are provided in a power transmission path that transmits the rotational driving force extracted by the power transmission shaft to the driving source.04-04-2013
20130028712GAS TURBINE ENGINE SYSTEMS INVOLVING TIP FANS - Gas turbine engine systems involving tip fans are provided. In this regard, a representative gas turbine engine system includes: a multi-stage fan having a first rotatable set of blades and a second counter-rotatable set of blades, the second rotatable set of blades defining an inner fan and a tip fan and being located downstream of the first set of rotatable blades; and an epicyclic differential gear assembly operative to receive a torque input and differentially apply the torque input to the first set of blades and the second set of blades.01-31-2013
20130089409NON-LUBRICATED ARCHITECTURE FOR A TURBOSHAFT ENGINE - A turbine engine for a helicopter, the helicopter including a main gearbox, a rotor, and a speed-reducing device housed entirely within the main gearbox of the helicopter while also being connected to the rotor, the turbine engine including a casing, a gas generator with a gas generator shaft, and a free turbine for being driven in rotation by a gas stream generated by the gas generator, the free turbine including a free turbine shaft. When the turbine engine is fastened to the gearbox of the helicopter, the free turbine shaft extends axially into the main gearbox of the helicopter to be connected directly to the speed-reducing device.04-11-2013
20130051984TORQUE FRAME AND ASYMMETRIC JOURNAL BEARING FOR FAN DRIVE GEAR SYSTEM - A fan drive gear system for a gas turbine engine includes a torque frame and a journal bearing. The torque frame has an arm that extends therefrom, the journal bearing is mounted on the arm. When the fan drive gear system is in an unloaded condition an outer circumferential surface of the journal bearing is disposed at an angle so that it is non-parallel with respect to an axis of the arm. When the fan drive gear system is in a loaded condition the outer circumferential surface is disposed substantially parallel to the axis of the arm. In another aspect, the journal bearing includes a main body, a first wing, and a second wing. The first and second wings extend from the main body and are asymmetric with respect to one another.02-28-2013
20130071232RAM AIR TURBINE WITH INTEGRATED HEAT EXCHANGER - A ram air turbine system for generating electrical power in an aircraft when the system is exposed to an airstream exterior of the aircraft. The ram air turbine system includes a turbine, a housing defining an interior, a gearbox having a speed-increasing gear train, and a generator.03-21-2013
20130058761MULTI-STAGE INTEGRALLY GEARED COMPRESSOR - A multi-stage integrally geared compressor includes a first process stage, a second process stage and a gearbox for coupling the two process stages to each other at different rotational speeds. The gearbox further couples a compressor drive shaft to the two process stages at a further rotational speed, which is different from the rotational speeds of the process stages.03-07-2013
20090232640ASSEMBLY FOR DRIVING GAS TURBINE ACCESSORIES - The invention provides an assembly for driving accessories of a gas turbine, the assembly comprising: a gearbox having a front side face and a rear side face opposite the front face and having mounted therein a first gear train made up of three toothed wheels meshing with one another, and a second gear train made up of four toothed wheels meshing with one another; a power transmission shaft that is coupled in rotation with the first and second gear trains by means of a toothed wheel pair, and that emerges from the front side face of the gearbox; and nine distinct gas turbine accessories mounted against the side faces of the gearbox, and each including a respective drive shaft that is coupled in rotation with one of the toothed wheels of the two gear trains.09-17-2009
20120237336GAS TURBINE ENGINE GEAR TRAIN - An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. The star gears are supported on respective journal bearings. Each of the journal bearings includes a peripheral journal surface and each of the star gears includes a radially inner journal surface that is in contact with the peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.309-20-2012
20120237335GAS TURBINE ENGINE WITH GEARED ARCHITECTURE - A geared architecture with a flex mount for a fan drive gear system.09-20-2012
20120237334GAS TURBINE ENGINE GEAR TRAIN - An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. The star gears are supported on respective journal bearings. Each of the journal bearings includes a peripheral journal surface and each of the star gears includes a radially inner journal surface that is in contact with the peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.309-20-2012
20120308362DUAL INPUT DRIVE AGB FOR GAS TURBINE ENGINES - A mechanical drive system of an aircraft gas turbine engine includes a tower shaft operatively connected to first and second shafts in an accessory drive gearbox. The first shaft rotates at a rotational speed lower than the rotational speed of the tower shaft and the second shaft rotates at a rotational speed equal to or higher than the rotational speed of the tower shaft.12-06-2012
20120099963ENGINE MOUNT SYSTEM FOR A TURBOFAN GAS TURBINE ENGINE - A gas turbine engine according to an exemplary aspect of the present invention includes a gear train defined along an engine centerline axis, and a spool along the engine centerline axis which drives the gear train, the spool includes a low stage count low pressure turbine.04-26-2012
20110299974LUBRICATING AND COOLING EPICYCLIC STEPDOWN GEARING - A lubricating and cooling epicyclic stepdown gearing, for example in an aeroengine turbomachine, including a cylindrical casing mounted on a planet-carrier of the gearing and forming a centrifugal scoop surrounding stationary oil-delivery strips, the cylindrical casing including radial ducts feeding nozzles pointing towards zones where the planet gears mesh with outer ring(s) of the gearing.12-08-2011
20120189430RING GEAR MOUNTING ARRANGEMENT WITH OIL SCAVENGE SCHEME - A turbine engine includes an input shaft and a fan shaft rotatable about an axis. The fan shaft supports fan blades. An epicyclic gear train is connected between the input shaft and the fan shaft. The epicyclic gear train includes a plurality of star gears, a carrier supporting the plurality of star gears, a sun gear that meshes with the plurality of star gears and a ring gear surrounding and meshing with the plurality of star gears such that the sun gear is rotatable in a first direction and the ring gear is rotatable in a second, opposite direction. The ring gear includes first and second portions that each have an inner periphery with teeth. The first and second portions include respective recesses facing one another to provide an internal annular cavity.07-26-2012
20110262268TURBO-MACHINE WITH BLADE WHEELS - The invention describes a turbo-machine with blade wheels, comprising a housing (10-27-2011
20120063887DOUBLE FAN FOR A HEAT EXCHANGER, IN PARTICULAR A COOLANT RADIATOR OF A MOTOR VEHICLE - The utilization of double fans for engine cooling of motor vehicles is known. Said fans generate a flow of air which then serves to cool a heat exchanger, in particular a coolant radiator for motor vehicles. The double fan is herein characterized by an optimal use of the surface of the coolant radiator that is to be cooled, so as to be able to achieve a cooling performance as high as possible. The assembly of the double fan has up to now been such that a separate electric motor is provided for each blower. The double fan (03-15-2012
20120107100RADIATOR FAN ASSEMBLY STRUCTURE AND METHOD OF FORMING - A radiator fan assembly structure has a base board with a seating surface and a stator installing surface; a stator inserting and positioning part, configured in the center of the stator installing surface of the base board; a stator set, has a silicon-steel plate, a coil and an insulate frame; and a plastic assembly seat formed integrally on the stator set, which is formed through a projection from the center of the insulate frame of the stator set. The shape of the plastic assembly seat enables it to be inserted into the stator inserting and positioning part. An axis is combined with the plastic assembly seat, with its root part fixed on the center of the plastic assembly seat. A rotor blade assembly has a wheel hub, blades, a bush, a bearing assembly and a magnet ring. The radiator fan runs smoothly and quietly.05-03-2012
20120107099TURBO BLOWER AND HIGH SPEED ROTATING BODY USED IN SAME - The present invention relates to a turbo blower and a high speed rotation body used in the turbo blower. The turbo blower includes: i) a motor having a motor shaft; ii) a gear housing accommodating a bull gear fitted on the motor shaft and a pinion gear engaged with the bull gear; iii) a high speed rotation body that includes a rotary shaft having the pinion gear on the external circumferential surface, an impeller fitted on one end of the rotary shaft, and a rotation body housing accommodating the rotary shaft, the pinion gear, and at least one first composite bearing and partially cut off to expose the pinion gear, and is partially accommodated in the gear housing; and iv) a scroll portion covering the impeller and discharging compressed air.05-03-2012
20090297337Geared Turbine Machine For A Machine Train, Machine Train With And Gear For Geared Turbine Machine - A machine train includes a drive unit, preferably a steam turbine with axial exhaust flow, a geared turbine machine, and an additional compressor. The geared turbine machine has an integrated gear train with a drive pinion for driving turbine machine rotors via a large gear, and an output pinion of a rotational speed reduction power gear for driving the additional compressor.12-03-2009
20090104019Offset drive for gas turbine engine - A gas turbine engine including a gas generator module and a reduction gearbox module. The gas generator module has an axis which extends longitudinally along a centreline of the gas generator module, and the reduction gearbox module has an axis which extending longitudinally along the centreline of the reduction gearbox and is offset from said generator axis. The reduction gearbox is driven by an intermediate shaft angled relative to the turbine output shaft.04-23-2009
20090290976Gearbox assembly - An assembly for a gas turbine engine includes an intermediate case and a gearbox. The intermediate case defines an annular transition duct. The gearbox comprises a plurality of lobes and is integrally formed with the annular transition duct.11-26-2009
20110142598Drive Train for a Wind Turbine - A drive train for a wind turbine, comprising a main bearing arrangement in the form of a single locating bearing arranged to support a main shaft. An outer raceway of the main bearing is coupled to a support structure, such as a base frame of a nacelle, via flange parts arranged on the outer raceway and the support structure, respectively. The flange parts define interfacing surfaces extending in a plane which is arranged non-parallel, preferably substantially perpendicular, to the rotational axis of the main shaft. Thereby a service friendly design is obtained, in which the main bearing and/or the main shaft can be repaired and/or replaced without having to remove the rotor from the nacelle.06-16-2011
20090074566WIND POWER GENERATING DEVICE - A wind power generating device includes a housing, a transmission unit, at least one winding disc, at least one magnetic disc, and a rotating unit. When there are a plurality of winding discs and a plurality of magnetic discs, the winding discs and the magnetic discs are axially spaced and alternately arranged in the housing behind the transmission unit. When the magnetic discs are directly rotated by the rotating unit and the winding discs are indirectly rotated by the rotating unit via the transmission unit, magnetic bodies on the magnetic discs and windings on the winding discs are quickly moved in a relative motion to produce relatively large flux change, enabling the wind power generating device to have increased power generation capacity.03-19-2009
20120243971EPICYCLIC GEAR TRAIN - An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. Each of the star gears is supported on a respective journal bearing. Each journal bearing includes an internal central cavity and at least one passage that extends radially from the internal cavity to a peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.3.09-27-2012
20130142626TANK SLOSHING ENERGY RECOVERY SYSTEM - A hydrodynamic energy recovery system for effecting mixing of gases within a headspace of a liquid-containment vessel containing a liquid enables mixing of the gases by converting energy of moving or sloshing liquid in a liquid-filled lower portion of the vessel into energy for moving the gases. The system includes (1) a hydro-driven actuator that is movably driven in response to the movement of the liquid in the vessel, (2) a mixing device driven by the actuator such that motion of the mixing device effects mixing of the gases contained in the headspace above the liquid, and (3) a motion converter for converting motion of the actuator into motion for driving the mixing device. The mixing device can be driven without the need to run electrical power within the vessel and without the transfer of motion through an external wall of the vessel.06-06-2013
20110085890HARMONIZATION OF MULTIPLE GEAR TRAIN CONFIGURATIONS - A gear arrangement is disclosed herein. The gear arrangement includes a housing. The gear arrangement also includes a plurality of gears at least partially disposed in the housing and engaged with respect to one another. The gear arrangement also includes a support post mounted to the housing. The support post supports at least one of the gears. The support post has a first portion extending away from the housing and encircled by one of the gears. The support post also has a pin projecting away from the first portion. The first portion and the pin are eccentric to one another such that the first portion is centered on a first axis and the pin is centered on a second axis. The first and second axes are parallel to and spaced from one another. The gear arrangement also includes a plurality of pin apertures defined by the housing. The plurality of pin apertures are positioned about a circle and each is operable to receive the pin for adjustably positioning the first portion in one of a plurality of different positions.04-14-2011
20110176911ASSEMBLING TITANIUM AND STEEL PARTS BY DIFFUSION WELDING - A method of assembling together titanium parts and steel parts by diffusion welding, the method interposing two thin layers of niobium or vanadium and copper respectively between a titanium part and a steel part, evacuating the assembly of parts and interposed metal layers, and subjecting the assembly to hot isostatic compression at a temperature lying in a range 900° C. to 950° C. and at a pressure lying in a range 1000 bars to 1500 bars for about two hours. The method can be applied to fabricating turbine shafts for turbomachines.07-21-2011
20120121390GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT - A gas turbine engine includes a spool along an engine centerline axis which drives a gear train, said spool includes a low pressure compressor with four (4) stages.05-17-2012
20120308363CENTRIFUGAL PUMP APPARATUS - This centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a permanent magnet provided in one surface of the impeller, and a permanent magnet provided in an inner wall of the blood chamber, for attracting the permanent magnet. A centerline of the permanent magnet is arranged at a position different from that of a centerline of a sidewall of the blood chamber such that a rotation centerline of the impeller matches the centerline of the sidewall of the blood chamber during pump operation. Therefore, high torque transmission efficiency is obtained.12-06-2012
20110305558GEAR-DRIVEN TURBO COMPRESSOR - Provided is a gear-driven turbo compressor capable of increasing a natural frequency of a shaft by shortening the length of an overhang from a radial bearing to a shaft end, reducing an effort of replacing lubricant and an environmental burden by greatly reducing the amount of the lubricant, and reducing the necessity for maintenance by reducing a problem of the radial bearing caused by depleted materials of the lubricant.12-15-2011
20090074565TURBINE ENGINE WITH DIFFERENTIAL GEAR DRIVEN FAN AND COMPRESSOR - A gas turbine engine (03-19-2009
20120107098GAS TURBINE ENGINE ROTOR TIE SHAFT ARRANGEMENT - Independent axial preloading of compressor and turbine disks in a gas turbine engine rotor is achieved by a dual tie shaft arrangement wherein a forward tie shaft engages forward and aft portions of a compressor hub within which the compressor disks are disposed to axially and compressively preload the compressor disks between the forward and aft portions of the compressor hub. An independent tie shaft engages an aft portion of a turbine hub within which turbine disks are disposed and an aft portion of the compressor hub to axially and compressively preload the turbine disks between the turbine and compressor hubs.05-03-2012
20120121388COMBINED AXLE STRUCTURE OF A STATOR ASSEMBLY FOR A RADIATOR FAN - A combined axle structure of a stator assembly for a radiator fan, of which said radiator fan comprises: a pedestal, a stator assembly, a rotor blade unit and a reverse axle. The pedestal includes a sustaining face and a stator assembly face. The stator assembly includes silicon-steel sheet, coil and insulated frame. The insulated frame is mated with a metal bearing block, which is designed like a cup, and includes a bottom wall and a circumferential wall. The top of the circumferential wall is positioned into the insulated frame. An axle socket is set at the center of the bottom wall, allowing for insertion of the bottom of the reverse axle. An embedded locator is set centrally into the stator assembly face of the pedestal, allowing for mating with the bottom of the metal bearing block.05-17-2012
20120121389COMPACT AND STRENGTHENED ROTOR ASSEMBLY OF A RADIATOR FAN - A compact, strengthened rotor assembly of a radiator fan, the radiator fan having a baseplate, a stator assembly, a rotor assembly and a reverse axle. The reverse axle is erected at the center of the baseplate or stator assembly and protruded upwards. The rotor assembly has a hub with a top wall and a circumferential wall. A magnetic ring is set annularly into the circumferential wall. Several blades are set annularly onto the exterior of the circumferential wall. A metal sleeve is located at the center of the top wall and protruded downwards. A mating portion is set at the top of the metal sleeve for mating with the top wall. A holding portion is formed within the metal sleeve for assembly and positioning of a bearing, and the bearing is used for pivoting of the reverse axle. The thickness of the top wall ranges between 0.2 mm and 0.5 mm.05-17-2012
20120163959RISERLESS RECIRCULATION/TRANSFER PUMP AND MIXER/PRE-MELTER FOR MOLTEN METAL APPLICATIONS - A pump for processing molten metal having an enlarged tubular body which houses a centrifugal lifting pump at its bottom end. The bottom end has a curved shape that aids in the formation and sustainability of: a) a forced vortex; b) a highly forced vortex; and c) a super forced vortex, depending on the application when it which receives the ejected molten metal from the lifting pump's impeller. The lifting pump is controlled to cause the vortex to climb up the inner wall of the body up to and out of an outlet formed in the upper end of the body. A recirculation centrifugal pump is mounted coaxially to and rotates with the lifting impeller.06-28-2012
20120315129Wind Turbine - A wind turbine that includes a rotor and a generator is described. The rotor includes a rotor hub that is rotatably mounted on a frame and one or more rotor blades. The generator includes a generator stator and a generator rotor with a carrying structure that carries magnetic or electromagnetic elements. One or more circumferentially arranged substantially axial protrusions that extend into the generator rotor carrying structure are attached to the rotor. Flexible couplings are arranged between one or more of the axial protrusions and the carrying structure.12-13-2012
20120315130GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT - A gas turbine engine includes a fan section, a gear arrangement configured to drive the fan section, a compressor section and a turbine section. The compressor section includes a low pressure compressor section and a high pressure compressor section. The turbine section is configured to drive compressor section and the gear arrangement. An overall pressure ratio, which is provided by a combination of a pressure ratio across said low pressure compressor section and a pressure ratio across said high pressure compressor section, is greater than about 35. The pressure ratio across the high pressure compressor section is between about 7 and about 15, and a pressure ratio across the fan section is less than or equal to 1.45.12-13-2012
20120213628GAS TURBINE ENGINE WITH GEARED ARCHITECTURE - A geared architecture with a flex mount for a fan drive gear system.08-23-2012
20120171018GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT - A gas turbine engine includes a fan section, a gear arrangement configured to drive the fan section, a compressor section and a turbine section. The compressor section includes a low pressure compressor section and a high pressure compressor section. The turbine section is configured to drive compressor section and the gear arrangement. An overall pressure ratio, which is provided by a combination of a pressure ratio across said low pressure compressor section and a pressure ratio across said high pressure compressor section, is greater than about 35. The pressure ratio across the low pressure compressor section is between about 3 and about 8 whereas the pressure ratio across the high pressure compressor section is between about 7 and about 15.07-05-2012
20120171017ANTI-ROTATION FOR THRUST WASHERS IN PLANETARY GEAR SYSTEM - A bushing for use in a planetary gear system has a cylindrical body portion defining a bore extending along a central axis to be received on a planetary gear shaft. A tab extends axially beyond a nominal body portion of the bushing and is received in a notch in a thrust washer adjacent to the bushing to prevent rotation of the thrust washer. A gear cage and an air turbine starter incorporating the bushing, along with a method of installing the bushing are also disclosed.07-05-2012
20120257960Engine Bearing Support - A turbofan engine comprises an engine case. A gaspath extends through the engine case. A fan has a circumferential array of fan blades. A fan case encircles the fan blades radially outboard of the engine case. A plurality of fan case vanes extend outward from the engine case to the fan case. A front frame assembly includes a plurality of vanes extending radially across the gaspath. A transmission couples a shaft to a fan shaft to drive the fan. A bearing assembly couples the shaft to the front frame assembly. A bearing support extends aftward and radially inward from the front frame assembly to the bearing assembly.10-11-2012
20120263578GAS TURBINE ENGINE FRONT CENTER BODY ARCHITECTURE - A method for servicing a gas turbine engine includes providing access from a forward section of the gas turbine engine to a gearbox contained within a bearing compartment.10-18-2012
20120321445AUTOMATIC SWING MECHANISM - An automatic swing mechanism has: a base, a lifting rod that can swing relative to the base and a driving mechanism that connects the base and the lifting rod, a flow passage that the flow can pass through is arranged in the base, and the driving mechanism comprises an impeller and a transmission mechanism. The impeller is pivotally arranged in the flow passage and can be rotated by the water passing through the flow passage. The transmission mechanism is connected between the impeller and the lifting rod to transform the rotation of the impeller to the swing of the lifting rod. The automatic swing mechanism drives the lifting rod swing by using the power of water, and the stuff arranged in the lifting rod can swing, such as handheld shower.12-20-2012
20120269617Cooling Fan - A cooling fan comprising a base, a lid, a fan wheel, and an auxiliary shaft assembly is disclosed. The lid is arranged above the base. The fan wheel has a shaft rotatably coupling with the base and a highest point spaced from the lid by a first gap. The auxiliary shaft assembly is arranged between a top of a hub of the fan wheel and a bottom face of the lid, with a second gap formed between the auxiliary shaft assembly and the top of the hub or between the auxiliary shaft assembly and the bottom face of the lid, wherein the second gap is smaller than the first gap. Alternatively, the auxiliary shaft assembly has a first auxiliary shaft protruding from the top of the hub and a second auxiliary shaft disposed on the bottom face of lid, with a second gap formed between the first and second auxiliary shafts smaller than the first gap.10-25-2012
20120269616TURBINE DRIVESHAFT FOR RAM AIR TURBINE - A driveshaft for an aircraft ram air turbine includes a tubular body and a flange. The tubular body defines an axis of rotation and includes a forward portion and a frusto-conical portion located rearward of the forward portion. The flange adjoins the forward portion of the tubular body opposite the frusto-conical portion, and has a forward face and an opposite rear face. A ratio of an outer diameter of the forward portion of the tubular body to an inner diameter of the forward portion of the tubular body is in a range of approximately 1.423 to 1.425.10-25-2012
20120087778MACHINE UNIT LAYOUT SYSTEM - Provided is a machine unit layout system that simplifies the layout of a compressor unit and an expander unit and is extremely effective in terms of not only the reliability of the entire machine but also maintainability. Two separate compressors, a low-pressure-side compressor and a high-pressure-side compressor (04-12-2012
20120087777GUIDING APPARATUS FOR GUIDING THE MOVEMENT OF A POOL CLEANER - A guiding apparatus (04-12-2012
20130115053MAGNETIC DRIVE PUMP - The disclosure offers a sealless magnetic drive pump for improving the stiffness of a stationary shaft, and more particularly to, a metal magnetic drive pump with an anti-corrosion casing liner. The magnetic drive pump is used in manufacture processes related to corrosive fluid. The pump is especially used in a highly corrosive and high-temperature (up to 200° C.) condition to improve the stiffness of a front support. The stationary shaft includes a metal front support integrated with the pump casing at a pump inlet and encapsulated with a resin enclosure made of a fluoropolymer; a rear shaft seat positioned on a sealed bottom side of a containment shell for offering auxiliary support for the stationary shaft; an impeller including a channel for reducing an inlet flow velocity to offer a low NPSHr.05-09-2013
20130149110OFF AXIS PUMP WITH INTEGRATED CHAIN AND SPROCKET ASSEMBLY - An off axis hydraulic pump for an automatic motor vehicle transmission includes an integrated chain and sprocket assembly. A first, chain drive sprocket is mounted on a shaft driven by an input to a torque converter and a second, driven chain sprocket is attached to a stub shaft which drives the pump. A multi-link chain encircles the sprockets and transfers drive torque from the torque converter input to the stub shaft. The first, chain drive sprocket is retained on the input shaft by a retainer cap which includes seals between both the shaft and a torque converter housing. The second, driven chain sprocket is retained on the stub shaft by a snap ring or similar component.06-13-2013
20130149111GAS TURBINE ENGINE WITH FAN VARIABLE AREA NOZZLE FOR LOW FAN PRESSURE RATIO - A nacelle assembly for a high-bypass gas turbine engine includes a fan variable area nozzle movable relative a fan nacelle to vary a fan nozzle exit area and adjust a pressure ratio of the fan bypass airflow during engine operation.06-13-2013
20130149112GAS TURBINE ENGINE WITH FAN VARIABLE AREA NOZZLE - A nacelle assembly for a high-bypass gas turbine engine includes a fan variable area nozzle movable relative to a fan nacelle to vary a fan nozzle exit area and adjust a pressure ratio of the fan bypass airflow during engine operation.06-13-2013
20130149113GAS TURBINE ENGINE WITH FAN VARIABLE AREA NOZZLE FOR LOW FAN PRESSURE RATIO - A gas turbine engine includes a fan section with twenty (20) or less fan blades and a fan pressure ratio less than about 1.45.06-13-2013
20120275904GAS TURBINE ENGINE LUBRICATION - A turbine engine includes a fan shaft and at least one tapered bearing mounted on the fan shaft. The fan shaft includes at least one radially extending passage adjacent the at least one tapered bearing. A fan is mounted for rotation on the tapered bearing. An epicyclic gear train is coupled to drive the fan. The epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear, and a ring gear that surrounds and meshes with the star gears. Each of the star gears is supported on a respective journal bearing. The epicyclic gear train defines a gear reduction ratio of greater than or equal to about 2.311-01-2012
20130195624GEARED TURBOFAN ENGINE WITH COUNTER-ROTATING SHAFTS - A mid-turbine frame is incorporated into a turbine section of a gas turbine engine intermediate a high pressure turbine and a low pressure turbine. The high pressure and low pressure turbines rotate in opposite directions. A plurality of vanes redirect the flow downstream of the high pressure turbine as it approaches the low pressure turbine.08-01-2013
20120020774ASSEMBLY BETWEEN A COMPRESSOR SHAFT TRUNNION AND A BEVEL GEAR FOR DRIVING AN ACCESSORY GEARBOX OF A TURBOMACHINE - The invention relates to an assembly between a compressor shaft trunnion and a bevel gear for driving an accessory gearbox of a turbomachine. The assembly comprises a bevel gear, a compressor shaft trunnion arranged coaxially inside the bevel gear, torque transmission means between the compressor shaft trunnion and the bevel gear, a lock nut for preventing the bevel gear from moving axially on the compressor shaft trunnion, the lock nut being suitable for being screwed onto the bevel gear and including a shoulder projecting radially outwards and suitable for coming into axial abutment firstly upstream against a stop nut screwed onto an upstream end of the compressor shaft trunnion, and secondly downstream against a bearing surface of the compressor shaft trunnion, and an anti-rotation pin for preventing the lock nut from rotating.01-26-2012
20130195625INTEGRAL SCROLL AND GEARBOX FOR A COMPRESSOR WITH SPEED CHANGE OPTION - The volute is cast integrally with the gearbox base to allow closer radial tolerances to be used to improve efficiency. In the preferred embodiment, compressors for multi-stage compression are assembled with intercoolers and the integral volute is cast together with the impeller housing and the lower gearbox housing and the associated intercooler. Efficiency increases of 2% or more are achievable. In multistage applications, efficiency gains in the early stages are compounded in each subsequent stage. Speed changes that change center distance between bull gear and pinion are accommodated by an offset opening in the inlet and diffuser that can line up with the impeller shaft as well as an offset opening in the fluid seal despite a pinion gear change, by reorientation and remounting of those parts.08-01-2013
20130202414RELATIVISTIC MECHANICAL DEVICE - A mechanical device includes a prime mover, and a number of rotating masses. Each mass is rotated simultaneously around centers of rotation in two or three planes that are at right angles to each other. The device includes one or more timing devices that are synchronized. The timing devices fix the relationship of the two simultaneous input rotations. In this device, internal energy creates an internal differential that is equalized by an external acceleration of the total mass, and internal energy is transferred to the exterior.08-08-2013
20130202416DRIVE DEVICE - [Object] To provide a drive device capable of increasing the drive precision of a movable member for generating power and capable of suppressing the generation of abraded particles.08-08-2013
20130202415GAS TURBINE ENGINE COMPRESSOR ARRANGEMENT - A gas turbine engine includes a fan section, a gear arrangement configured to drive the fan section, a compressor section and a turbine section. The compressor section includes a low pressure compressor section and a high pressure compressor section. The turbine section is configured to drive compressor section and the gear arrangement. The engine includes a combination of quantities providing beneficial operation.08-08-2013
415123000 Brake or clutch 12
20120201658METHOD FOR PROTECTING THE PASSAGE OF AIR IN A DRIVE PART COUPLING IN AN UNPROTECTED ENVIRONMENT, COUPLING FOR IMPLEMENTATION, AND ROTOR LINE FITTED WITH SUCH COUPLINGS - A method to prevent blockage of air passages in curvic couplings between drive parts and to prevent potential damage to the drive parts during weakening of protective elements. To this end, axial abutments are formed by ring gears of the curvic couplings. A coupling includes two rings, each ring being on the end of one drive part and engaged with the other so as to transmit to the drive part a rotation around a central axis while allowing air to pass between male and female portions of the teeth of the rings behind a bearing area. The rings are extended in an at least partially radial manner relative to each other to form an outer ring extension and an inner ring extension respectively facing elements surrounding the drive part that are mounted onto the other ring. The rotor lines can be used in turbine engines.08-09-2012
20120237337MOTOR-GENERATOR CONNECTION SHAFT VENT - An example method of reducing loads on a connection shaft includes disengaging a connection shaft from a motor-generator such that the connection shaft is not rotatably coupled to the motor-generator. The method communicates a fluid away from the motor-generator through a communication path established within the connection shaft. An example turbomachine connection shaft is configured to selectively rotatably couple a turbomachine rotor and a motor-generator. The connection shaft establishes a communication path that selectively vents the motor-generator.09-20-2012
20110299975BRAKE SYSTEM FOR A WIND TURBINE - The invention relates to a brake system for a wind turbine having a machine house rotatably mounted in horizontal plane on a tower, at least one stop brake (12-08-2011
20110188997BRAKE MECHANISM FOR AIR TURBINE STARTER - A brake assembly (08-04-2011
20100189548ROTATION ARRANGEMENT - A selective rotation arrangement for a shaft, the arrangement including a housing mountable spaced from the shaft and an engagement member with distal and proximal ends which is selectively movable relative to the housing towards or away from the shaft between an operating position towards the shaft and a rest position clear of the shaft, the engagement member having a gear member at the distal end thereof which is engageable with the shaft in the operating position to permit turning of the shaft by the engagement member, but is disengaged from the shaft in the rest position.07-29-2010
20120201657GAS TURBINE ENGINE BRAKING METHOD - The present disclosure discloses an engine braking system, especially for vehicles powered by a gas turbine. The engine braking system allows for control of engine braking force; control of over-speed of the power turbine and further includes means of recovering some or all of the braking energy of the engine braking system. Dissipative engine braking devices include an auxiliary compressor, or electrical generator, or an eddy current clutch or an eddy current brake, or fluid pump. Several methods of controlling the engine braking force of a dissipative braking device are disclosed and include (1) a continuously variable transmission (“CVT”); (2) an electrical generator and an optional thermal storage device; (3) an eddy current clutch; and (4) a fluid pump system. The various control devices may be operated automatically by appropriate algorithms. One of these control methods utilizes an eddy current clutch assembly. An innovative configuration of eddy current clutch assembly based on a brushless alternator is disclosed. Additional innovations include vehicle braking systems that utilize some or all the braking features to recoup a portion of braking energy available with either or both of a hybrid transmission and a dissipative braking device such as a compressor, an electrical generator or a fluid pump system.08-09-2012
20100021284REGENERATIVE BRAKING FOR GAS TURBINE SYSTEMS - The present invention is directed to an energy storage system comprised of a heat block having a relatively high specific energy capacity. The heat block can be used, for example, with a regenerative braking system for gas turbine powered vehicles to improve fuel efficiency.01-28-2010
20090028693EXPANSION TURBINE - A braking mechanism is provided that is suitable for an expansion turbine that rotates at high speed. Upper end salient poles 01-29-2009
20120148385AXIAL COUPLING WITH COMPENSATED FORCES - The invention relates to a drive train (06-14-2012
20130011241FAN DISK APPARATUS AND METHOD - An apparatus for a gas turbine engine comprises a spool lock for locking a compressor spool and a lift for removing a rotor from the compressor spool. The spool lock comprises an outer ring configured for attachment to a compressor case of the gas turbine engine, an inner ring configured to support a compressor spool within the compressor case, and a web extending between the outer ring and the inner ring. The lift comprises a beam configured for attachment to a flange of the gas turbine engine, a support strut configured to support the beam above the compressor spool, and a hoist configured to support the rotor for removal from the compressor spool.01-10-2013
20130101398Impulse wind machine - An impulse wind machine comprises the following: 04-25-2013
20130195626BEARING - A clutch bearing (08-01-2013
415124000 Hand or foot operated crank, pedal or traction wheel 1
20120321446FAIL-SAFE MANUAL ROTATOR COVER - A gearbox includes an outer housing including manual rotation access passage and a manual rotation shaft coupled to a spool of an engine to rotate the engine spool. The gearbox also includes coupled to the outer housing that includes a flapper valve that, in a closed position, prevents a lubricant from escaping from the outer housing via the manual rotation access passage.12-20-2012
415124100 Runner supported portion engages shaft transmission train (e.g., peripheral gear drive, etc.) 5
20130039746TURBOCOMPRESSOR AND TURBOREFRIGERATOR - Provided is a turbocompressor (02-14-2013
20090041575Driving Apparatus for a Wave Power Device - Driving apparatus for a wave power device, in which a turbine is placed in a substantially stationary open tubular element, the tubular element extending through the water surface into the water, and in which the amount of water flowing into and out of the tubular element due to a varying wave height around the tubular element, has to pass the turbine; alternatively, the tubular element being placed substantially horizontally below the water surface, a flow of water passing through it, the turbine being connected to a supported turbine shaft, and the turbine shaft being provided with a co-rotating eccentric part, the eccentric part being surrounded by a freely rotatable eccentric bearing connected to the eccentric part, and the eccentric bearing forming the driving part of a fluid pump.02-12-2009
20120288358CONTRA-ROTATING PROPELLER SYSTEM FOR AN AIRCRAFT TURBINE ENGINE - A contra-rotating propeller system for an aircraft turbine engine, including a free power turbine including a first rotor and a second rotor contra-rotating relative to the first rotor, a first contra-rotating propeller and a second contra-rotating propeller to be rotated about a longitudinal axis of the propeller system relative to a stator of the system, and a mechanical transmission device. The mechanical transmission system is provided between the first propeller and the second propeller.11-15-2012
20110206498EPICYCLIC GEARBOX - An epicyclic gear train includes planetary gears rotatably mounted on spindles supported by an annular carrier and including axially spaced apart forward and aft sets of output teeth extending radially outwardly from a planetary gear hub and axially spaced apart forward and aft roller bearings disposed between planetary gears and spindles. The forward and aft roller bearings are axially aligned with or adjacent to spaced apart forward set of output teeth and input gear respectively. A ring gear meshes with forward set of output teeth and an external gear meshes with aft set of output teeth. An input gear fixedly attached to hub aft of aft set of output teeth and engaged with a sun gear. The output teeth, input gear, ring gear, external gear, and sun gear may all be helical. A turbofan gas turbine engine may include counter-rotatable first and second fan stages driven by a low pressure turbine through the gear train.08-25-2011
20090003992Reduced gearbox size by separate electrically powered engine oil system - An accessory system for use in a gas turbine engine, which system includes a gearbox adapted to be arranged radially outward of a main axis of the gas turbine engine and inside a nacelle, one or more engine accessories respectively connected to and driven by the gearbox, and a gas turbine engine oil system driven by a source other than the gearbox.01-01-2009
415124200 Shaft transmission train having flexible means or coupling 7
20130071233Device for Driving an Auxiliary Unit - A device for driving an auxiliary unit, in particular a high-pressure pump, includes a rotatably supported drive shaft of an internal combustion engine, wherein the drive shaft and a unit shaft of the auxiliary unit are operatively connected to each other by a coupling. The unit shaft has a first bearing on the side facing away from the coupling, and the coupling is a second bearing for the unit shaft. The device provides a low-cost, acoustically inconspicuous, tolerance-insensitive coupling solution for connecting, for example, a high-pressure pump camshaft to an available intake or exhaust camshaft.03-21-2013
20110076136GAS COMPRESSOR MAGNETIC COUPLER - Provided in some embodiments is a gas compression system that includes a gas compressor having a drive shaft, an impeller drive shaft magnetically coupled to the drive shaft, and a shroud disposed between the drive shaft and the impeller drive shaft. In other embodiments provided is method that includes magnetically coupling a first drive shaft to a second drive shaft, receiving a rotational torque at the first drive shaft, transmitting the rotational torque from the first drive shaft to the second drive shaft via the magnetic coupling, and rotating a gas compressor impeller coupled to the second drive shaft.03-31-2011
20100196141FUEL CELL COMPRESSOR SYSTEM - The invention provides a fuel cell compressor system that comprises a motor, including a motor shaft driven by the motor; a drive housing at least partially surrounding the motor shaft; a first gear set driven by the motor shaft; a carrier torque tube driven by the first gear set; and an impeller. The impeller includes an impeller shaft driven by the second gear set, so that the impeller shaft is configured to rotate at a speed greater than motor speed. Embodiments of the invention may also include a first bearing supporting the carrier torque tube and a second bearing supporting the impeller shaft. Embodiments of the invention may also include a seal system.08-05-2010
20110188998Combustion exhaust energy conversion system - An energy conversion system that comprises a turbine rotor mounted inside an exhaust stack or chimney. The turbine is connected to a generator with a flexible drive shaft.08-04-2011
20120263579GAS TURBINE ENGINE FRONT CENTER BODY ARCHITECTURE - A gas turbine engine includes a central body support that provides an inner annular wall for a core flow path. The central body support includes first splines. A geared architecture interconnects a spool and a fan rotatable about an axis. A flex support interconnects the geared architecture to the central body support. The flex support includes second splines that intermesh with the first splines for transferring torque there between.10-18-2012
20130170958GAS TURBINE ENGINE FRONT CENTER BODY ARCHITECTURE - A gas turbine engine includes a central body support that provides an inner annular wall for a core flow path. The central body support includes a first mount feature. A geared architecture interconnects a spool and a fan rotatable about an axis. A flex support interconnects the geared architecture to the central body support. The flex support includes a second mount feature that cooperates with the first mount feature for transferring torque there between. A method of disassembling a front architecture of a gas turbine engine includes the steps of accessing forward-facing fasteners that secure a central body support to a flex support, wherein the flex support includes a geared architecture supported thereon, removing the fasteners, and decoupling first and second mount features respectively provided on the central body support and the flex support.07-04-2013
20130129485PUMPING DEVICE THAT PROVIDES LINEAR CURRENT - A pumping device ensures that the fluid materials such as water and liquid are transmitted from one area to another area. The pumping device includes an outer flexible pipe forming an enclosed volume between a first suction area and a destination area, which has a flexible shaft through winch the rotational motion from the said pumping device is transferred and at least one impeller to which rotational motion is transferred through this flexible shaft and multiple centering components ensuring that the flexible shaft is centered and/or bedded inside the outer flexible pipe.05-23-2013

Patent applications in class INCLUDING SHAFT TRANSMISSION TRAIN, BRAKE, CLUTCH, OR ATTENDANT ACTUATED DRIVE MEANS

Patent applications in all subclasses INCLUDING SHAFT TRANSMISSION TRAIN, BRAKE, CLUTCH, OR ATTENDANT ACTUATED DRIVE MEANS