| Patents for F03C 1 - Reciprocating-piston liquid engines (2,799) |
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| 01/11/1989 | CN1003049B Hydraulic pressure motor and pump of fixed type ball-and-ream structure |
| 12/27/1988 | US4793240 Adjustable device for axial piston pump/motor of a tilting axis type |
| 12/27/1988 | US4793239 Fluid handling device |
| 12/15/1988 | WO1988009872A1 Mixed-phase motor |
| 12/13/1988 | US4790200 Progressive control |
| 11/22/1988 | US4785714 Positive-displacement fluid motor having self-stopping function, and method and control circuit for stopping the motor |
| 11/22/1988 | US4785713 Driving device, in particular for a proportioning pump of the piston-flowmeter type |
| 11/22/1988 | CA1245132A1 Unitary bearing retainer for a swashplate bearing |
| 11/01/1988 | CA1243898A1 Vane slots for a fluid power converter |
| 10/13/1988 | DE3711041A1 Einstellbare hydrostatische kolbenmaschine Adjustable hydrostatic piston machine |
| 10/11/1988 | CA1242931A1 Swashplate type axial-piston pump |
| 09/28/1988 | EP0284460A1 Pressurised fluid mechanism, pump or engine, with several displacement volumes |
| 09/22/1988 | WO1988007133A1 Variable-capacity hydraulic motor |
| 09/20/1988 | US4771677 Axial piston machine |
| 09/14/1988 | EP0282138A2 Hydraulic drive circuit system |
| 09/06/1988 | US4768421 Radial piston machine with shaft radial position stroke control |
| 09/06/1988 | US4768340 Automatic displacement control for variable displacement motor |
| 08/31/1988 | EP0280532A2 Power transfer apparatus |
| 08/30/1988 | CA1241232A1 Hydraulic motor |
| 08/16/1988 | US4763472 Power transfer unit |
| 08/03/1988 | EP0276680A2 Two-speed valve in-star motor |
| 07/26/1988 | US4759186 Self-powered rotary actuator utilizing rotation-generated centrifugal head |
| 07/13/1988 | EP0220175B1 Axial-piston hydraulic pump with inclined thrust plate |
| 07/06/1988 | EP0273634A1 Hydraulically operated swashplate apparatus |
| 06/15/1988 | EP0270740A2 Method of controlling a fluid motor |
| 06/08/1988 | EP0270181A2 A rotary distribution group for hydraulic motors with orbiting sealing surfaces |
| 06/02/1988 | WO1988003992A1 Variable-capacity piston machine |
| 06/01/1988 | CN86107512A Pressure energy motive power machine |
| 05/31/1988 | US4747339 Radial piston machine |
| 05/11/1988 | EP0266806A2 Hydraulic motor comprising radially arranged, tubular propulsion elements |
| 05/05/1988 | DE3637174A1 Piston engine with changeable displacement |
| 05/03/1988 | CA1236199A1 Power drive unit and control system therefor |
| 04/28/1988 | DE3734927A1 Piston engine |
| 04/27/1988 | EP0264490A1 Rotor and shaft equal rotation |
| 04/27/1988 | CN87202038U Piston type hydraulic energy-retricing machine |
| 04/26/1988 | CA1235605A1 Toroidal motor/pump |
| 04/19/1988 | US4738185 Swash plate-type pump-motor |
| 04/12/1988 | US4736585 Hydrostatic machine |
| 04/06/1988 | EP0262721A1 A rotary engine of the type having a planetary rotor with rotor and shaft equal rotation |
| 03/30/1988 | CN87203008U Single sloping disk axial plunger hydraulic motor |
| 03/17/1988 | DE3630748A1 Control valve |
| 03/08/1988 | CA1233727A1 Hydraulic control circuit and valve assembly |
| 03/02/1988 | EP0257122A1 Fluid motor |
| 02/25/1988 | WO1988001348A1 Hydromechanical drive |
| 02/16/1988 | US4724742 Motor or pump mechanism having at least two distinct active cylinder capacities |
| 02/10/1988 | EP0255516A1 Hydraulic motor |
| 02/09/1988 | US4723636 Braking device with multiple effects |
| 02/03/1988 | CN87104630A Hydraulic energy exchanger |
| 01/27/1988 | EP0253852A1 Hydraulic rotary actuator utilizing rotation generated centrifugal head |
| 01/19/1988 | US4719843 Hydraulic mechanism, engine or pump, provided with rollers mounted on the pistons and with members for holding said rollers in position |
| 01/13/1988 | EP0252715A2 Radial piston fluid pressure pump or motor |
| 01/05/1988 | US4716816 Hydraulic motor |
| 11/25/1987 | EP0246567A2 Reversible system for the transfer of energy from a fluid to a rotating shaft |
| 11/10/1987 | US4705458 Fluid operated pump |
| 11/10/1987 | US4704946 Fluid motor with rotary output |
| 11/03/1987 | US4703906 Airborne craft with an inclinable upper structure |
| 10/31/1987 | CN86210862U Household water-saving cistern |
| 10/20/1987 | US4700613 Hydraulic motor with stationary axle and rotating fluid distributor |
| 10/08/1987 | WO1987005972A1 Piston engine, in particular radial piston engine |
| 10/01/1987 | DE3709389A1 Kolbenmotor, insbesondere radialkolbenmotor Piston engine, in particular radial piston engine |
| 09/01/1987 | US4690038 Hydraulically actuated piston machine with bearing for connecting piston to piston rod |
| 09/01/1987 | US4690036 Axial piston pump or motor with multi position swash plate |
| 08/18/1987 | US4686829 Rotary hydrostatic radial piston machines |
| 08/10/1987 | EP0185056A4 Rotary hydraulic engine |
| 08/05/1987 | EP0223788A4 Hydraulic motor. |
| 08/04/1987 | US4684332 Ratio pump and method |
| 07/23/1987 | EP0204835A4 Hydraulic swashplate unit with unitary bearing retainer. |
| 07/22/1987 | EP0229401A1 Overhead irrigation device |
| 07/21/1987 | US4680930 Hydraulic control circuit and valve assembly |
| 07/02/1987 | WO1987003927A1 Self-powered rotary actuator utilizing rotation generated centrifugal head |
| 06/30/1987 | USRE32446 Pressurized fluid engine equipped with means for selecting its speed of rotation |
| 06/16/1987 | US4673341 Variable capacity roller- and vane-type pumps with non-circular cam profile |
| 06/03/1987 | EP0223788A1 Hydraulic motor |
| 06/03/1987 | CN85108641A Rotary fluid energy conversion device |
| 05/27/1987 | EP0223656A1 Mechanism, engine or pump with at least two different swept volumes |
| 05/27/1987 | EP0223568A2 Ratio pump |
| 05/06/1987 | EP0220175A1 Axial-piston hydraulic pump with inclined thrust plate. |
| 04/22/1987 | CN85107656A Rotary fluid energy converter |
| 04/21/1987 | US4659297 Variable capacity vane motor having rotatable and stationary cam rings |
| 04/21/1987 | US4659294 Hydrualic pressure amplifier |
| 04/16/1987 | DE3536884A1 Hydraulic motor |
| 04/15/1987 | CN85109105A Variable hydraulic machinery and hydraulic transmission of stepless variable drive |
| 04/15/1987 | CN85109102A The reverse mechanism of the hydraulic machinery |
| 04/15/1987 | CN85109057A Piston and roller mechanism of fluidrive machinery |
| 04/14/1987 | CA1220399A1 Frangible pressure relief disc assembly and positive displacement pumps containing the disc assembly |
| 04/08/1987 | EP0217699A1 Motor device of the piston liquid meter type, especially for a dosing pump |
| 04/07/1987 | CA1220083A1 Hydraulic piston and cylinder machines |
| 04/01/1987 | CN85101715A Radical trunk piston oil pump or oil motor with rotary hull |
| 03/31/1987 | US4653381 Motor suspension apparatus for hydromotors |
| 03/18/1987 | CN86105995A Driving device of metering pump specially for piston flowmeter |
| 03/03/1987 | US4646518 Driving unit for a feed pump |
| 02/17/1987 | US4643077 Hydraulic radial piston machine |
| 02/11/1987 | CN86101588A Multipurpose fluid drive piston pump |
| 01/27/1987 | US4639203 Rotary fluid pressure device having free-wheeling capability |
| 01/27/1987 | US4639202 Gerotor device with dual valving plates |
| 01/20/1987 | US4637293 Slant plate type hydraulic device |
| 01/13/1987 | US4636157 Toroidal motor or pump |
| 01/13/1987 | US4635535 Hydraulic radial piston machines |
| 01/13/1987 | CA1216563A1 Fluid motors |
| 01/07/1987 | EP0207687A1 Rotary fluid pressure device having free-wheeling capability |