Patents for F03C 1 - Reciprocating-piston liquid engines (2,799)
01/1996
01/18/1996DE4424610A1 Hydraulische Kolbenmaschine Hydraulic piston engine
01/17/1996EP0692072A1 Pressure medium driven device performing linear motion
01/17/1996EP0692071A1 Hydraulic drive system
01/03/1996EP0576637B1 Piston motor with improved starting characteristics
12/1995
12/12/1995US5473894 Combination of two pressurized fluid motors
12/06/1995EP0685647A2 Hydraulic radial piston motor with variable cylinder capacity
12/06/1995EP0536267A4 Radial piston fluid machine and/or adjustable rotor
11/1995
11/23/1995WO1995031641A1 Radial-piston hydraulic motor and method for regulation of a radial-piston hydraulic motor
11/02/1995EP0679228A1 Pressure-applying arrangement in a hydraulic axial piston machine.
11/02/1995EP0679226A1 Hydraulic axial piston machine.
11/02/1995EP0679225A1 Hydraulic piston machine.
11/02/1995EP0679224A1 Hydraulic machine and method for assembling a piston and slider shoe unit.
11/02/1995EP0599870B1 Hydrostatic axial piston motor for fitting in the hub of a driven wheel
10/1995
10/05/1995DE4439135A1 Piston for hydraulic pump or motor
09/1995
09/07/1995DE4407370A1 Control and monitoring of pressure for hydraulic motor used to hold workpiece in machine tool
08/1995
08/08/1995US5439356 Hydraulic motor and pump having hydraulic counter balancing means
08/01/1995US5437338 Hydraulic drive unit for driving a drilling tool
07/1995
07/26/1995CN1029379C 平衡式行星齿轮泵或马达 Balanced type planetary gear pump or motor
07/25/1995US5435135 Reversible pressurized fluid mechanism such as a motor or a pump and having at least two operating cylinder capacities
07/11/1995US5431245 Hydrostatic axial piston motor for fitting in the hub of a driven wheel
07/06/1995DE4441030A1 Time delay valve for hydraulic motor
07/05/1995EP0661478A1 Speed change mechanism for swash plate type hydraulic motor
06/1995
06/15/1995WO1995016132A1 Hydraulic axial piston motor
06/15/1995WO1995016131A1 Hydraulic axial piston motor
06/15/1995WO1995016129A1 Hydraulic piston engine
06/15/1995WO1995016128A1 Hydraulic piston engine
06/08/1995DE4441375A1 Operation of hydraulic motor(s)
05/1995
05/04/1995DE4337508A1 Radialkolbenmotor als Einschubmotor Radial piston engine as a plug-engine
05/03/1995EP0651159A1 Distribution unit for hydraulic radial piston motors
04/1995
04/18/1995US5406794 Dual variable displacement over-center hydraulic motor power drive unit
03/1995
03/07/1995US5395221 Carbide or boride coated rotor for a positive displacement motor or pump
02/1995
02/21/1995US5391123 Hydromechanical final drive
02/21/1995US5391059 Radial piston motor or pump
01/1995
01/17/1995US5381724 Swash-plate, plunger-type hydraul pressure apparatus
01/10/1995US5379678 Hydraulic drive
01/04/1995CN1097044A Hydraulic motor
01/03/1995US5377559 Radial piston fluid machine and/or adjustable rotor
12/1994
12/08/1994WO1994028317A1 Method of preventing cavitation in an axial piston pump during an aiding load and system and valve employing the same
12/07/1994EP0627556A1 Carbide or boride coated rotor for a positive displacement motor or pump
11/1994
11/08/1994US5361584 Hydrostatic drive system
11/02/1994CN1094483A AC hydraulic rotary machine
10/1994
10/27/1994WO1994023918A1 Hydrostatic-mechanical gear for driving a mixing drum
10/19/1994EP0620358A1 Hydraulic motor
10/19/1994CN1026256C Power transmission
10/13/1994WO1994023198A1 Hydraulic drive system
10/05/1994EP0564500B1 A radial piston motor or pump
10/05/1994EP0561933B1 A radial piston motor or pump
09/1994
09/29/1994WO1994021915A1 Pressure medium driven device performing linear motion
09/27/1994US5349895 Air motor control
08/1994
08/25/1994DE4405123A1 Pressure-fluid mechanism with sleeve-shaped contact pieces, such as, for example, a hydraulic motor or a hydraulic pump
08/18/1994WO1994018451A1 Radial-piston hydraulic motor equipment
08/17/1994EP0527967B1 Hydraulic drive device
08/02/1994US5333705 Assembly of a hydraulic motor and brake
07/1994
07/21/1994WO1994016224A1 Hydraulic axial piston machine with an inclined plate
07/21/1994WO1994016221A1 Pressure-applying arrangement in a hydraulic axial piston machine
07/21/1994WO1994016219A1 Hydraulic axial piston machine
07/21/1994WO1994016218A1 Hydraulic piston machine
07/21/1994WO1994016217A1 Hydraulic machine and method for assembling a piston and slider shoe unit
07/20/1994EP0607069A1 Hydraulic motor piston
07/07/1994WO1994015097A1 Device for controlling pressure in cylinder chamber of hydraulic pump motor
07/06/1994EP0524922B1 Synchronization mechanism for radial piston machine
07/06/1994EP0389644B1 Variable capacitance, oblique spindle type hydraulique machine
06/1994
06/29/1994EP0604255A1 Hydraulic motor piston
06/15/1994EP0601916A1 Hydraulic motor mit for driving a drilling tool
06/08/1994EP0599870A1 Hydrostatic axial piston motor for fitting in the hub of a driven wheel.
05/1994
05/18/1994EP0597754A1 Rotary piston machine
05/18/1994EP0305548B1 Variable-capacity hydraulic motor
04/1994
04/28/1994DE4335495A1 Gritter or sander vehicle hydraulic appts. control device - measures pressure and revs. rate of hydromotor and controls valve to provide correct pressure of fluid
04/28/1994DE4235710A1 Hydromechanical dredger drive unit - has slow radial piston motor with rotating housing, and fast axial piston motor
04/14/1994WO1994008139A1 Hydraulic pump/motor
03/1994
03/31/1994WO1994007028A1 Drive unit
03/24/1994DE4235697A1 Hydromechanical drive set with incorporated epicyclic gear - which is mounted on journal, whose front side carries control face of hydraulic motor
03/22/1994CA1327915C Positive displacement pump or motor utilizing a self-lubricated bearing
03/17/1994DE4323036A1 Hydraulic, axial piston motor with inclined axis design - has control disc with aperture defining control edge on its cylindrically arcuated side
03/15/1994CA1327741C Anti-leak seal for pump motor
02/1994
02/22/1994US5287794 Hydraulic motor with inlet fluid supplemented by fluid from contracting chamber
02/16/1994CN1023825C Flexible piston engine
01/1994
01/18/1994US5279867 Subjecting gas medium to radiation; decomposition of compound or alloy at low temperature
01/18/1994US5279208 Rotary reciprocating engine with synchronization mechanism
01/12/1994EP0490894B1 Hydraulic motor or pump with constant clamping force between rotor and port plate
01/12/1994EP0377047B1 Main bearing device for motor of bent axis type axial piston pump
12/1993
12/29/1993EP0448675B1 Hydraulic circuit for limiting the torque of a hydrostatic hydraulic motor connected in closed circuit to a hydraulic pump
11/1993
11/30/1993US5265331 Method of manufacturing a piston for an axial piston fluid translating device
11/25/1993DE4216989A1 High torque engine system - uses several rotary piston cylinders rotated by shifting together steep threads
11/16/1993US5261318 Pressure fluid mechanism provided with special balancing enclosures
11/16/1993US5261311 Reciprocating hydraulic motor with a differential piston
11/03/1993EP0567736A1 Hydrostatic motor with a braking device
11/03/1993EP0542759A4 A multi-chamber rotary lobe fluid machine with positive sliding seals
10/1993
10/20/1993EP0565741A1 Hydraulic rotary cylinder
10/14/1993DE4311501A1 Multispeed hydraulic drive system - consists of radial and axial reciprocating machines connected by distributor disc
10/13/1993EP0564500A1 A radial piston motor or pump.
10/05/1993US5249507 Swash-plate plunger type hydraulic apparatus
09/1993
09/30/1993DE4213078A1 Hydraulic motor with double-acting adjusting ram - has damping valve connected to pipe between ram and pressure-regulator
09/29/1993EP0561933A1 A radial piston motor or pump.
09/15/1993CN1022127C Low-speed, high-torque rotor hydraulic motor
09/02/1993DE4206086A1 Modular power transmission system - is composed of electric or hydraulic motor with an epicyclic gear attached by housing.
09/01/1993EP0557316A1 A method in a radial piston eccentric motor/pump and a corresponding radial piston eccentric motor/pump
08/1993
08/18/1993EP0555374A1 Two speed gerotor motor with centrally located valve and commutator
08/10/1993US5234321 Variable displacement hydrostatic pump and neutral return mechanism therefor
07/1993
07/20/1993US5228291 Motor with rotating mass induced vibration driving means
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