Class / Patent application number | Description | Number of patent applications / Date published |
092120100 | DISPLACEMENT CONTROL OF PLURAL CYLINDERS ARRANGED IN PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS | 76 |
20080223206 | Pressure Booster - In a pressure booster having a cylinder mechanism, a floating mechanism is disposed between pistons and a piston rod, the floating mechanism being capable of absorbing offset (off centered) loads that are imposed on the pistons from the piston rod. The floating mechanism is constituted from swing bolts connected to both ends of the piston rod, support plates mounted onto end surfaces of the pistons and which swingably support the swing bolts therein, and fixing plates disposed between the ends of the piston rod and the support plates. | 09-18-2008 |
20110061524 | HYDRAULIC MODULE - A hydraulic module with two inclined-axis drive systems. The hydraulic module comprises a yoke ( | 03-17-2011 |
20120060684 | FLUID WORKING MACHINE AND METHOD OF OPERATING A FLUID WORKING MACHINE - The present invention relates to a fluid working machine comprising a controller and a working chamber, an electronically controllable low pressure valve associated therewith and a fast high pressure valve associated therewith, characterised in that the working chamber has associated therewith a slow high pressure valve for controlling the connection of the working chamber to a secondary high pressure manifold. A fluid working machine according to the invention may be operated to rotate its shaft to a certain position, for example to allow easy maintenance of a wind turbine generator. | 03-15-2012 |
20120180650 | AXIAL PISTON MACHINES - The invention relates to an axial piston machine of a kind that has a plurality of pistons each reciprocating in a respective cylinder in a direction substantially parallel or at an angle less than 30 degrees to a crankshaft axis. The crankshaft axis presents a crank that is at an angle to the crankshaft axis and to which a reciprocator is mounted. The reciprocator effects the controlled movement of the pistons in their cylinders via a connection mechanism that connects each said piston with said reciprocator. The machine includes at least one pair of rotational constraint mechanisms to constrain the movement between the reciprocator and the pistons. | 07-19-2012 |
20140060317 | Axial Piston Machine Having an Inclined-Axis Construction - An axial piston unit ( | 03-06-2014 |
20140076155 | ROTARY THREE DIMENSIONAL VARIABLE VOLUME MACHINE - An embodiment may have two rotary discs including a second disc (a cap) and a first disc; and a rotary ‘cam’ (having ports) placed in the central hole of the first disc. A cap is half the diameter of the first disc. Both face each other and maintain contour complementarity (wall height of the second disc+radial depth of the first disc is constant at contact); either, when both discs rotate on their axes, placed the second disc's radius apart, or when the second disc rotates and revolves on the face of stationary first disc. The cap seals the cavity underneath during the two motions, and without jeopardizing the sealing, permits entry and exit of the radial ridges and furrows of the first disc into it. The ridges sweep the floor (under surface) of the cap and divide the cavity into variable volume compartments that suck and expel fluid simultaneously through the ‘cam’. The machine is designed to work as rotary pump, compressor, turbine or internal combustion engine. | 03-20-2014 |
20140150643 | Cam Engine - The invention relates to a cam engine used in different field of the mechanical engineering, as internal-combustion engines, compressors, pumps etc. The cam engine comprises cylinders ( | 06-05-2014 |
20140352525 | AXIAL PISTON MACHINE HAVING A BASKET - Mounting structure for housing-free hydraulic axial piston machines of the bent axis or swash plate design, having a closing plate on which a cylinder block unit with displacing pistons arranged therein is supported, and having a drive or driven shaft. The mounting structure here is designed in the manner of a basket and has a receptacle for the drive or driven shaft and at least two struts which are in each case connected at one end to the receptacle and at the other end to the closing plate in such a manner that the closing plate, the cylinder block unit and the drive or driven shaft are held—analogously as in a housing—in a functionally ready position. | 12-04-2014 |
092120200 | Parallel cylinders | 63 |
20080236384 | Axial Piston Machine - The invention relates to an axial position machine ( | 10-02-2008 |
20090013863 | Bent Axis Pump - A bent axis pump wherein the coupling between a cylinder body and a connecting pin of a back body takes place by the interposition of a bush suitable for guiding the rotation of the cylinder body limiting the friction between the cylinder body and the pin. The pin life is considerably extended. | 01-15-2009 |
20090064855 | Capacity-variable type swash plate compressor - A capacity-variable type swash plate compressor in which a link mechanism is hardly worn and superior durability is demonstrated. According to the compressor in the invention, a link mechanism comprises a swash plate arm and first and second intermediate arms. The first and second intermediate arms include pairs of first guided surfaces extending in parallel to a virtual plane P and having back sides thereof facing each other in front and back in the direction of rotation of a drive shaft, and each are formed into a plate shape extending from the side of a lug plate to the side of a swash plate. First and second lug arms of the lug plate are formed with first and second lug-side storage recesses having first guiding surfaces. The first and second intermediate arms are stored in the first and second lug-side storage recesses. | 03-12-2009 |
20090120279 | Bearing restricting device in swash plate hydraulic pump or motor - In a swash plate hydraulic pump or motor structured so that a convex arc surface on the back surface of a swash plate is supported on a concave arc surface of a swash plate support via a bearing in a manner enabling the arc surface to swing in the circumferential direction that follows the arc path. A restricting pin is included for restricting movements of the bearing. The assembly structure prevents the restricting pin from coming out of the swash plate and the swash plate support. One end of the restricting pin is supported rotatably on a side surface of the swash plate. An intermediate portion of the restricting pin is engaged in an engagement hole formed in a holder of the bearing in a loosely fitting manner. Finally, the other end of the restricting pin is inserted into a support rod supported rotatably around its axis on the swash plate support to permit movement of the restricting pin in a pin axial direction. | 05-14-2009 |
20090139396 | Wobble Plate Compressor - [Object of the Invention] An object of the present invention is to provide a wobble plate compressor equipped with a mechanism for preventing the rotation of the wobble plate which is simply structured, producible at low cost, and does not cause heavy noise or vibration. | 06-04-2009 |
20100000401 | AXIAL-PISTON MACHINE HAVING AN ANTIWEAR LAYER - An axial piston machine having a control plate and a cylinder drum rotating relative to the control plate. The control plate rubs or slides on a second sliding side of the cylinder drum via a first sliding side. One of the sliding sides has a carbon-containing layer. | 01-07-2010 |
20100236400 | AXIAL PISTON MACHINE WITH ROTATION RESTRAINT MECHANISM - A recipricator restraint assembly for a Z-crank axial piston machine is described. The assembly includes two gimbal arms each linked together at gimbal link joint that intersect at a point T. Point T lying in a medial plane M being defined as the plane passing through the point of coincidence of the crank and crankshaft axes to which the line that bisects the crank angle is normal. Each of the gimbal arms is pivotally mounted at an identical distance L from point T. A cylinder gimbal is pivotally mounted from the cylinder cluster and a recipricator gimbal is pivotally mounted from the recipricator. The recipricator gimbal pivot axis is equidistant from point X and T as is the cylinder gimbal pivot axis. The orientations of the pivot axes of the two gimbal arms being mutual reflections in the medial plane M resulting in the point T lying on the medial plane M as the crankshaft rotates with respect to the cylinder cluster, and thus ensuring homo-kinetic rotational restraint between the recipricator and the cylinder cluster. | 09-23-2010 |
20110017060 | HYDRAULIC PUMP - A pump has an axial drive shaft with a cam fence that extends radially outwardly from an axis of the drive shaft. The cam fence axially displaces, in respective cylinders, each of a plurality of elongate pistons arranged in parallel to and around the axis and angularly spaced apart from each other. The axial position of an outer margin of the cam fence varies as a function of its radial angle with the axis. In one part of the operation of the pump, a piston is withdrawn to uncover a radial inlet port to draw fluid into the cylinder from an internal reservoir volume formed in the drive shaft. In a second part of the operation, the drive shaft is further rotated to open a cylinder end port by means of a rotary valve and closing the side port of the cylinder with a portion of the drive shaft body. In a third part of the operation, the piston is advanced to push fluid out of the cylinder end port into an output chamber. The pump is double-ended such that opposed ends of any piston are drawing in fluid, and pushing out fluid, at the same time. | 01-27-2011 |
20110030549 | RETRACTION BALL FOR A HYDROSTATIC PISTON MACHINE - A retraction ball and a system made of a retraction ball and an elastic element for a hydrostatic piston machine is provided, having at least one recess for accommodating an elastic element, and at least one structural element being disposed in the recess for locking the elastic element. | 02-10-2011 |
20110088547 | Wobble Plate-Type Variable Displacement Compressor - Disclosed is a wobble plate type variable displacement compressor that uses a constant velocity universal joint mechanism, which comprises an inner ring and an outer ring, balls that are held between guide grooves of the inner ring and the outer ring to transmit power, wherein a wobble plate is connected and fixed to the outer ring. In the compressor, the wobble plate is provided with a cylindrical part which extends in the axial direction of a swash plate, and in the relative rotation structure between the swash plate, and the wobble plate and the outer ring, the swash plate is supported to be able to relatively rotate only in relation to the wobble plate via a bearing interposed at least between the cylindrical part and the inner diameter portion of the swash plate, without being supported to be able to rotate relative to the outer ring. With this wobble plate type variable displacement compressor using the specified constant velocity universal joint mechanism, the relative rotation structure between the wobble plate and the outer ring, and the swash plate, can be improved, workability and productivity can be improved, and the cost and weight can be reduced. | 04-21-2011 |
20110197752 | AXIAL PISTON MULTI CIRCUIT MACHINE - An axial multi circuit machine has a housing and centrally mounted drive shaft A cylinder barrel has a plurality cylinders with a piston placed in each cylinder In one embodiment the drive shaft rotates the cylinder barrel with respect to a stationary wedge and in another embodiment the drive shaft rotates the wedge with respect to the stationary cylinder barrel A cylinder head with a cylinder having at least one port for receiving and discharging a fluid to a first fluid circuit and a second cylinder having a second port for discharging fluid to a second fluid circuit The first and second fluid circuits are independent and can be at different pressures and flow rates Alternatively, the machine may function as a motor and receive fluid by means of one or more of the fluid circuits which in turn imparts a driving force to the drive shaft | 08-18-2011 |
20110252958 | Machine Housing of a Hydraulic Machine - A machine housing of a piston machine is disclosed. The machine housing is formed in two parts. The machine housing has a main housing which is closed off by a connection plate. Here, the connection plate is screwed to the main housing by means of a plurality of screws, and is positioned with low tolerances with respect to said main housing by means of two centering pins. Here, the centering pins are arranged with twofold rotational symmetry with respect to a shaft axis of a drive shaft of the piston machine. In contrast, screw positions do not have rotational symmetry with respect to said shaft axis. This prevents incorrect mounting of the connection plate. | 10-20-2011 |
20120000354 | Hydrostatic Axial Piston Machine - A hydrostatic axial piston machine ( | 01-05-2012 |
20120192710 | Oil-Free Air Compressor for Rail Vehicles - An oil-free compressor for a rail vehicle includes a multi-piece compressor housing, a first piston cylinder supported in a first opening in the compressor housing, a second piston cylinder supported in a second opening in the compressor housing, and a multi-piece crankshaft assembly supported by the compressor housing. The crankshaft assembly is linked to pistons of the first and second piston cylinders by respective connecting rods. The connecting rods connect to a wrist pin associated with each of the pistons, and the wrist pins are respectively supported by a dry lubricant bushing to the associated piston. The compressor housing may have at least a first housing portion and a second housing portion. The first housing portion and the second housing portion may form respective halves of the compressor housing that are secured together with mechanical fasteners. | 08-02-2012 |
20120210865 | RECIPROCATING PUMP FLOW CONTROL - A multi-throw reciprocating pump is provided. The pump provides active stroke control. Fluid flow is controlled by canceling out at least a portion of a discharge stroke of one plunger with a suction stroke of another plunger. Controlling the degree to which the discharge stroke is cancelled out is used to control the actual volume of fluid being pumped. | 08-23-2012 |
20120247319 | SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR - A housing has a peripheral wall that surrounds a crank chamber. The peripheral wall has a valve chamber that is recessed radially inward from an outer surface of the peripheral wall with respect to the axis. A bimetal member, which deforms in correspondence with the temperature in the crank chamber, is arranged in the valve chamber. A valve body, which is supported by the bimetal member, is arranged in the valve chamber. The peripheral wall has a first oil discharge passage and allows communication between the crank chamber and the valve chamber, and a second oil discharge passage through which the valve chamber and a suction chamber communicate with each other. When the temperature in the crank chamber exceeds a predetermined value and deforms the bimetal member to move the valve body, communication between the first and second oil discharge passage is permitted through the valve chamber. | 10-04-2012 |
20150075362 | Hydrostatic Axial Piston Machine - A hydrostatic axial piston machine ( | 03-19-2015 |
20150075363 | Hydrostatic Axial Piston Machine Utilizing A Bent-Axis Construction - A hydrostatic axial piston machine ( | 03-19-2015 |
20150075364 | Hydrostatic Axial Piston Machine Employing A Bent-Axis Construction With A Constant Velocity Joint For Driving The Cylinder Drum - A bent-axis hydrostatic axial piston machine ( | 03-19-2015 |
20150075365 | Hydrostatic Axial Piston Machine Employing A Bent-Axis Construction - A bent-axis hydrostatic axial piston machine ( | 03-19-2015 |
20150122115 | Hydrostatic Axial Piston Machine - A hydrostatic axial piston machine includes a drive shaft and a plurality of cylinder sleeves in which a spherical or ball-shaped section and a spherical or ball-shaped piston are inserted to delimit a respective displacer chamber. The sections are secured on a rotor, while the pistons are secured on a piston disk or piston drum. The piston disk is configured to be tilted at different pivoting angles relative to the rotor in a variable-displacement machine, or the piston disk is tilted continuously relative to the rotor in a constant-displacement machine. The rotor and the piston disk are coupled to one another for conjoint rotation by a driving device. The rotor and the piston disk can also be coupled indirectly by a drive shaft of the machine. A sliding joint axial with respect to a drive shaft is arranged between the rotor and the piston disk. | 05-07-2015 |
20150135943 | Cylinder Block For A Compressor, In Particular Swash Plate Compressor, And Swash Plate Compressor - A cylinder block ( | 05-21-2015 |
20150354355 | ADAPTATION OF A HYDRAULIC MOTOR - The invention relates to a hydraulic axial piston machine ( | 12-10-2015 |
20160024756 | HYDRAULIC ACTUATOR - A hydraulic actuator is disclosed. The hydraulic actuator may have a cylinder barrel. The hydraulic actuator may also have a piston rod reciprocally received by the cylinder barrel. The piston rod may have at least one first piston rod end extending out of the cylinder barrel. The hydraulic actuator may further have an intermediate element attached to the at least one first piston rod end by a first set of screws extending in a first direction. In addition, the hydraulic actuator may have a connecting element attached to the intermediate element by a second set of screws extending in a second direction opposite to the first direction. | 01-28-2016 |
20160130944 | AXIAL PISTON MACHINE - An axial piston machine ( | 05-12-2016 |
092013000 | WITH ADJUSTABLE MEANS TO VARY STROKE OF WORKING MEMBER | 38 |
20090049981 | MECHANISM FOR VARYING CYLINDER STOP POSITION AND SUBSTRATE PROCESSING APPARATUS INCLUDING SAME - A cylinder stop position varying mechanism is employed in a cylinder having a piston and a shaft. The cylinder stop position varying mechanism includes a stopper fitted onto the shaft; a pair of limiters for stopping a reciprocating movement of the piston by contact with the stopper; and a limiter moving mechanism for varying positions of the limiters. The cylinder is driven by a hydraulic pressure, and the limiter moving mechanism is provided to each of the pair of limiters to control positions of the limiters independently. | 02-26-2009 |
20090078113 | Reciprocating Piston Machine, in Particular a Compressor for a Vehicle Air-Conditioning Unit - A reciprocating piston machine ( | 03-26-2009 |
20090095148 | Hydrostatic Axial Piston Machine - A hydrostatic axial piston machine, in particular a swashplate machine, has a cylinder drum ( | 04-16-2009 |
20090095149 | Axial Piston Machine - An axial piston machine utilizing a swashplate design has a cylinder drum ( | 04-16-2009 |
20090095150 | Axial Piston Machine Utilizing A Swashplate Design - A hydrostatic axial piston machine utilizing a swashplate design has a cylinder drum ( | 04-16-2009 |
20090107327 | Capacity-variable type swash plate compressor - A capacity-variable type swash plate compressor in which the preferable operability of a link mechanism and reduction of manufacturing cost are realized is provided. According to the compressor in the present invention, a link mechanism includes one swash plate arm and intermediate arms. The intermediate arms include first and second intermediate arms. The first and second intermediate arms are joined while being rotatably supported by a lug member and the swash plate arm via a lug-side pin which constitutes a lug-side axis and a swash-plate-side pin which constitutes a swash-plate-side axis and clamping the lug member and the swash plate arm via the lug-side pin and the swash-plate-side pin so as to allow a sliding movement. | 04-30-2009 |
20090199705 | AXIAL PISTON MACHINE AND CONTROL PLATE FOR AN AXIAL PISTON MACHINE - In the case of a control plate for an axial piston machine having at least two control openings ( | 08-13-2009 |
20090241766 | VARIABLE DISPLACEMENT COMPRESSOR - A variable displacement compressor includes a housing, a rotary shaft, a bearing, a seal member, a shaft seal chamber, a discharge refrigerant passage and a partition. The partition is provided in the shaft seal chamber for partitioning the shaft seal chamber into a first seal chamber to which the discharge refrigerant passage is opened and a second seal chamber part of the periphery of which is formed by the bearing and the seal member. The partition is provided with a first guide passage through which refrigerant containing lubricating oil flowed from the discharge refrigerant passage into tho first seal chamber is substantially all supplied to the seal member of the second seal chamber. | 10-01-2009 |
20100089230 | Axial Piston Machine With an Elongated Guide Element for a Cage Segment - The invention relates to an axial piston machine ( | 04-15-2010 |
20100132544 | AXIAL PISTON MACHINE HAVING A RETURN DEVICE - The invention relates to an axial piston machine comprising a pivoting cradle having variable tilt. The axial piston machine has at least one adjustment device extending substantially in the longitudinal direction of the axial piston machine. The axial piston machine further comprises a return element for returning to a position of the pivoting cradle. The return element and the adjustment device are disposed in a plane extending parallel to an axis of rotation of the axial piston machine and perpendicular to a pivoting axis of the pivoting cradle. | 06-03-2010 |
20100206161 | AXIAL PISTON MACHINE IN A SWASH-PLATE CONSTRUCTION HAVING AN ADJUSTING DEVICE - An axial piston machine in a swash-plate construction with an actuating device. The actuating device comprises a actuating piston and a mating piston. The actuating piston and the mating piston are connected to the swash plate each with the first end thereof and can be applied with the second end thereof with a force acting in the direction of the first end. For resetting the swash plate in the direction of a resting position, an elastic element is provided on the actuating piston and on the mating piston, which is supported on a spring bearing arranged on the first side facing the swash plate of the actuating piston or of the mating piston. In the other direction, the elastic element is supported on a second spring bearing arranged on the end facing away from the swash plate of the actuating piston or of the mating piston. When the swash plate is deflected from the resting position, the second spring bearing of the actuating piston or of the mating piston is supported on a counter bearing on the housing side. The second spring bearing of the respective other actuating bearing or mating bearing is supported on a counter bearing on the piston side. | 08-19-2010 |
20110232476 | ROTARY MACHINE WITH PISTONS AND A BARREL - The invention relates to a rotary machine with pistons ( | 09-29-2011 |
20110271828 | Axial Piston Machine having Bent Axis Construction - An axial piston machine having bent axis construction, having a drive shaft rotatably supported in a housing and ending in a drive flange comprising a face on the drive shaft side, is disclosed in which ball races are formed for receiving piston heads. The piston heads are rotatably retained in the ball races by means of deformable rings. The axial piston machine having bent axis construction possesses characteristics so that pressure relief of the ball head is ensured for all cases. The rings at the inner surface comprise at least one groove running so as to connect the ring faces to each other. | 11-10-2011 |
20110271829 | Rotary Hydraulic Machine and Controls - A variable capacity hydraulic machine has a rotating group located within a casing and a control housing secured to the casing to extend across and seal an opening in the casing. The control housing accommodates a control circuit and a pair of sensors to sense change in parameters associated with the rotating group. One of the sensors is positioned adjacent the barrel on the rotating group to sense rotational speed and the other senses displacement of the swashplate. The control housing accommodates a control valve and accumulator to supply fluid to the control valve. | 11-10-2011 |
20110315006 | HYDROSTATIC MACHINE - A hydrostatic machine, has first and second axial-piston units arranged on a common axis and having pistons which cooperate with an adjustable swash plates, wherein the first axial-piston unit has a first one of the swash plates associated with it while the second axial-piston unit has a second one of the swash plates associated with it, and a coupling mechanism which couples the first and the second swash plates mechanically and adjustably. | 12-29-2011 |
20120097022 | PUMP UNIT - A pump unit includes a variable capacity pump, and a balanced piston mechanism having a piston body, connected to an operation section of a variable swash plate, provided inside a cylinder, capable of sliding in an axial direction. The balanced piston mechanism has first, second and third pressure receiving chambers provided in the cylinder. Primary side and the secondary side working fluid pressures of an actuator switching valve are respectively introduced to the first receive pressure chamber and the second pressure receiving chamber, and a set pressure that has been previously set, corresponding to a working fluid differential pressure arising before and after passing through the actuator switching valve, in a steady state of the operating position of the actuator switching valve is introduced to the third pressure receiving chamber. | 04-26-2012 |
20130139679 | PISTON ASSEMBLY FOR A FLUID TRANSLATING DEVICE - A piston assembly for use in the cylinder block of a fluid translating device such as a hydraulic pump or motor. The piston assembly has an inner core having a working end, a driven end and an axial stem. An outer sleeve is positioned about an axial stem of the inner core of the piston assembly. The outer sleeve is composed of a material, which is made from a material being lighter weight than steel, and secured to the axial stem. A slipper includes a piston receiving portion for pivotally receiving the driven end of the piston assembly. The piston assembly and slipper include a lubrication passage providing a path for pressurized fluid. | 06-06-2013 |
20130213214 | SWASHPLATE PIVOT BEARING - The invention relates to a swashplate pivot bearing ( | 08-22-2013 |
20140360351 | FLUID PRESSURE ROTARY MACHINE - A fluid pressure rotary machine includes a cylinder block that is fixed to a rotary shaft and includes a plurality of cylinder bores, a piston disposed to be free to slide in each cylinder bore such that a volume chamber is defined thereby, a swash plate that causes the piston to reciprocate such that the volume chamber expands and contracts, and a valve plate that slides against the cylinder block and includes an intake port and a discharge port communicating with the volume chamber. The valve plate includes a sliding surface formed to project in a spherical shape against the cylinder block. The cylinder block includes a sliding surface formed as an indentation corresponding to the shape of the sliding surface of the valve plate. A minute gap is formed between the sliding surface of the valve plate and the sliding surface of the cylinder block in an outer edge position. | 12-11-2014 |
20150068394 | Hydrostatic Variable Displacement Axial Piston Machine, in particular Hydrostatic Variable Displacement Axial Piston Motor - A hydrostatic axial piston machine includes a swashplate with an oblique surface formed thereon. Working pistons, which revolve and are supported by the oblique surface, are axially positioned on the swashplate with respect to a drive shaft. An adjusting cylinder, coupled to the swashplate, is configured to produce a pivoting moment and pivot the swashplate about a pivoting axis. Displacement of the working cylinders per revolution around the drive shaft is adjustable by adjusting a pivoting angle of the oblique surface. The adjustment of the pivoting angle is configured to pass beyond zero degrees, such that the direction of rotation of the drive shaft is changeable. The pivoting axis is at a distance from an axis of rotation of the drive shaft, such that an internal counter pivoting moment counteracting the pivoting moment is produced during operation of the axial piston machine when the working pistons are subjected to pressure. | 03-12-2015 |
20150300333 | Hydraulic Rotary Machine - A sliding layer ( | 10-22-2015 |
20150377209 | HYDRAULIC ROTARY APPARATUS - A gap between an outer peripheral surface of a cylinder block and an inner periphery surface of a housing serves to reduce an agitation resistance of an operating oil with a simple arrangement. So this reduces an agitation loss and improves or increases a conversion efficiency between a hydraulic energy and a rotational energy. | 12-31-2015 |
20160024923 | ENHANCED WASTE HEAT RECOVERY SYSTEM - A method for improving the efficiency of an internal combustion engine changes the volume in a piston chamber of an expander device. The expander device generally operates at a fixed expander device speed to perform work on a swash plate expander shaft. The swash plate expander shaft is connected to a first end of a piston in the piston chamber. | 01-28-2016 |
20160025080 | APPARATUS INCLUDING SWASHPLATES FIXED ON SHAFT ASSEMBLY AND PISTON ASSEMBLIES - An apparatus includes a shaft assembly and swashplates fixed on the shaft assembly facing opposite to each other. At least two double rod cylinders are configured to reciprocate parallel to the shaft assembly between the swashplates. The at least two double rod cylinders are configured to push against the swashplates in either direction. This is done in such a way that the at least two double rod cylinders generate rotational force in the same direction at the shaft assembly. The apparatus may be used as a fluid motor, a fluid compressor (also called a pump) or an internal combustion engine (either with or without a guide path provided by or formed in the swashplates). | 01-28-2016 |
20160047366 | VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSOR - A fourth pin that slides on a rotary shaft is provided to a swash plate. A guiding surface for guiding the fourth pin is provided to the rotary shaft. The fourth pin is guided by the guiding surface, the swash plate is supported by the rotary shaft via the fourth pin, and a force having a component in a direction orthogonal to the direction of movement of a movable body acting on the swash plate is thereby reduced. Accordingly, there is a reduction in the force, which has a component in a direction orthogonal to the direction of movement of the movable body, acting on a coupling section of the movable body via a third pin from the swash plate. As a result, when the inclination of the swash plate is changed, unwanted tilting of the movable body relative to the direction of movement is suppressed. | 02-18-2016 |
20160053751 | SEMISPHERICAL SHOE FOR SWASH PLATE COMPRESSOR AND SWASH PLATE COMPRESSOR - It is an object of the present invention to provide a semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at the start time of an operation, does not deteriorate in its lubricating property owing to frictional heating, and ensures sufficient durability and a swash plate compressor in which a lubricating film is not formed on a sliding contact surface of a swash plate owing to the use of the semispherical shoe. A semispherical shoe ( | 02-25-2016 |
20160076524 | PISTON INCLUDED IN LIQUID-PRESSURE ROTATING DEVICE AND LIQUID-PRESSURE ROTATING DEVICE - A piston in a liquid-pressure rotating device in which pistons are arranged at a cylinder block rotatable together with a rotating shaft, includes: a cylindrical peripheral wall main body portion including a hollow portion, an opening portion formed at one end of the body portion and communicating with the hollow portion; a lid portion welded to an inner peripheral surface of the opening portion sealing the hollow portion and including an outer surface formed as a pressure receiving surface which receives liquid pressure; and a stress reducing portion provided on an inner peripheral surface of the body portion, the inner peripheral surface in contact with or close to an end portion of a welded portion formed between the opening portion and the lid portion, the end portion located at the hollow portion side, the stress reducing portion configured to reduce stress acting on the end portion of the welded portion. | 03-17-2016 |
20160076525 | AXIAL PISTON PUMP - The invention relates to an axial piston swash plate pump, in particular for hydraulic systems, comprising a cylinder drum ( | 03-17-2016 |
20160084084 | HYDRAULIC AXIAL-PISTON DEVICE WITH FEATURES TO ENHANCE EFFICIENCY AND POWER-DENSITY - An axial piston device configuration that includes a drive shaft, a piston block, pistons, a constant velocity joint assembly, a drive plate coupled to the constant velocity joint assembly, a swash plate, shoes, and piston rods may be provided. The piston block has an interior that is coupled to the drive shaft via a first torque transmitting mechanical interface. The constant velocity joint assembly includes multiple components, at least one of which is coupled to the drive shaft via a second torque transmitting mechanical interface. | 03-24-2016 |
20160131118 | TANDEM AXIAL PISTON PUMP WITH SHARED CYLINDER BLOCK - A tandem axial piston pump having a common cylinder block. A first axial piston pump includes a first set of pistons arranged in a parallel, circular array and configured to reciprocate in response to rotation about a central axis. A second axial piston pump includes a second set of pistons arranged in a parallel, circular array and configured to reciprocate as they rotate about the central axis. A common drive shaft extends along the central axis, both the first and second sets of pistons being configured to rotate with the common drive shaft. Both the first and second sets of pistons are configured to reciprocate within corresponding separate first and second sets of cylinder bores of the common cylinder block. | 05-12-2016 |
20160153432 | PUMP | 06-02-2016 |
20160153436 | VARIABLE DISPLACEMENT TYPE SWASH PLATE COMPRESSOR | 06-02-2016 |
20160153438 | VARIABLE DISPLACEMENT SWASH-PLATE COMPRESSOR | 06-02-2016 |
20160200435 | SWASHPLATE APPARATUS | 07-14-2016 |
20160201659 | Bearing Arrangement for Cryogenic Pump | 07-14-2016 |
20160201697 | VARIABLE WOBBLER FOR HYDRAULIC UNIT | 07-14-2016 |
20160201698 | FIXED WOBBLER FOR HYDRAULIC UNIT | 07-14-2016 |
20160252083 | TURBOMACHINE WHICH CAN BE OPERATED BOTH AS HYDRAULIC MOTOR AND AS PUMP | 09-01-2016 |
092130400 | Predetermined discrete incremental adjustment positions | 1 |
20090277324 | ACTUATING ASSEMBLY FOR AN ADJUSTABLE WIDTH GUIDEWAY IN A CONVEYOR SYSTEM FOR BOTTLES - An adjustable width guideway assembly for use in a conveyor for conveying articles having different widths. The assembly comprises a first moveable guide and a second fixed guide parallel to the first guide, the first and second guides defining the guideway therebetween. The first guide is moveable towards or away from the second guide between a first position, a second position and at least one intermediate position The disclosure is particularly directed towards an adjustable width guideway assembly for use in an air conveyor conveying light plastic bottles suspended in the guideway by a flange located on the bottle neck. | 11-12-2009 |
092130600 | Adjustable abutment positioned within working chamber | 1 |
20150033939 | HYDROSTATIC RADIAL PISTON MACHINE AND PISTON FOR A HYDROSTATIC RADIAL PISTON MACHINE - A radial piston machine and a piston for a radial piston machine include pistons that are movable in the radial direction and are guided along a lifting surface of a cam ring by a roller. The roller is hydrostatically supported by a pressure groove in a sliding bearing surface of a roller cage. The geometry of the pressure groove is configured such that both the leakage is reduced and the lateral support is improved by enlarging hydrostatic and hydrodynamic surface sections. | 02-05-2015 |
092130700 | BY adjusting or limiting motion of relatively movable power transmission element | 3 |
20080250921 | Stroke adjustment mechanism for reciprocating pumps - A stroke adjustment mechanism having fewer parts that are easier to manufacture. In order to translate stroke adjustment into an eccentric offset of a rotating shaft to act as a rotating cam surface, the present invention utilizes two separate and identical plungers. The plungers are easier to manufacture as they do not require complex machining in mating parts. The present invention is also easier to assemble than prior designs. The present invention allows the drive gear to be produced with a simple round ID bore and also uses a one-piece, easy to machine round shaft. This provides for a simple and strong design. | 10-16-2008 |
20090272258 | Wechselarmatur - A retractable assembly, comprising: an assembly housing; a linear drive in the assembly housing; and a tubular holder), movably guided between a measuring position and a service position by means of the linear drive, for fluid-sealed reception of a sensor, with which a physical and/or chemical process variable is determinable. The linear drive includes a piston seated movably in a cylinder and loadable with a pressure-bearing medium on one or both ends and the tubular holder is fixed in the piston. The piston has on its working end active for the measuring position a breach in the direction of the interior of the tubular holder. | 11-05-2009 |
20110023701 | VARIABLE DISPLACEMENT RECIPROCATING PUMP - A variable displacement reciprocating pump with pumping rate that is adjustable from zero to maximum stroke while the pump is running. Stroke is varied by changing relative position of pairs of eccentric inner and outer cams that drive the pump's plungers. The pump's input drive shaft drives two gear trains: a first gear train that turns the inner cams and a second gear train that turns the outer cams. These cams normally revolve together with no relative motion occurring between them. A rotary actuator is positioned in the first gear train to rotate the inner cams relative to the outer cams and thereby changes the pump's stroke. A computerized system of sensors and control valves allows the pump to be automatically controlled or limited to any one or combination of desired output flow, pressure and horsepower. | 02-03-2011 |