| Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723) |
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| 07/07/1987 | US4678412 Adjusting apparatus for a vane pump or radial piston pump |
| 07/07/1987 | US4678411 Oil pump |
| 07/02/1987 | WO1987003926A1 Piston for axial piston machine |
| 07/02/1987 | DE3545137A1 Kolben fuer axialkolbenmaschine Piston for axial piston |
| 07/02/1987 | DE3545019A1 High-pressure pump with flushing device |
| 06/24/1987 | EP0226125A2 Variable displacement pump system |
| 06/17/1987 | CN86108529A Dynamic transmission system |
| 06/16/1987 | US4673337 Hydraulic radial piston pump intake porting arrangement |
| 06/16/1987 | EP0225834A1 Piston and barrel rotary machine with a fixed central swivel member |
| 06/11/1987 | DE3542938A1 Fuel injection pump |
| 06/10/1987 | CN86207301U Improvements on connection with hydraulic pump & its drive unit |
| 06/09/1987 | US4671743 Piston pump |
| 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 | EP0223243A2 Axial piston machine with diminished noise level |
| 05/26/1987 | US4668171 Torque control device for an adjustable hydropump |
| 05/20/1987 | CN85108266A Servo system |
| 05/06/1987 | EP0220175A1 Axial-piston hydraulic pump with inclined thrust plate. |
| 05/06/1987 | CN86201586U Cylinder for refrigerating compressor |
| 04/22/1987 | CN85107656A Rotary fluid energy converter |
| 04/21/1987 | USRE32403 Fluid device having interchangeable displacement control means |
| 04/15/1987 | CN85109105A Variable hydraulic machinery and hydraulic transmission of stepless variable drive |
| 04/15/1987 | CN85109057A Piston and roller mechanism of fluidrive machinery |
| 04/15/1987 | CN85107287A Rotary fluid transfer device |
| 04/14/1987 | CA1220378A1 Constant flow positive displacement pump |
| 04/08/1987 | CN85107092A 流体机器 Fluid machine |
| 04/08/1987 | CN85102766A Hydrostatic transmission vehicle with wheel-mounted oil motors |
| 04/07/1987 | US4655689 Electronic control system for a variable displacement pump |
| 04/07/1987 | CA1220083A1 Hydraulic piston and cylinder machines |
| 04/01/1987 | EP0216740A1 Cylinder block for a hydraulic wobble plate pump |
| 04/01/1987 | CN85101715A Radical trunk piston oil pump or oil motor with rotary hull |
| 03/25/1987 | CN85204098U Axial plunger pump with a sliding bearing self-setting sleere |
| 03/19/1987 | DE3623797A1 Radial piston pump |
| 03/19/1987 | DE3532976A1 Radial-piston pump |
| 03/18/1987 | CN85106444A Radial-piston pump |
| 03/17/1987 | USRE32373 Fluid device having means for aligning a cylinder barrel |
| 03/11/1987 | EP0213124A1 Axial piston pump shoe retainer |
| 03/04/1987 | EP0211884A1 Radial piston rotary machine capable of forming a pump or an engine |
| 02/25/1987 | EP0211096A1 Capacity control or torque limitation |
| 02/19/1987 | DE3529278A1 Hydraulic pump |
| 02/17/1987 | US4643651 Constant flow rate liquid pumping system |
| 02/17/1987 | US4643077 Hydraulic radial piston machine |
| 02/11/1987 | CN86200564U Radial radiation seven-piston-pump used in universal testing machine |
| 02/10/1987 | US4642032 Axial piston pump including ball piston |
| 01/27/1987 | US4639203 Rotary fluid pressure device having free-wheeling capability |
| 01/27/1987 | US4639195 Power control devices for hydrostatic pumps |
| 01/27/1987 | US4639173 Apparatus for producing a cam with sinusoidal cam lobe surfaces |
| 01/27/1987 | US4638547 Process for producing a cam with sinusoidal cam lobe surfaces |
| 01/21/1987 | EP0208683A1 Hydraulic pump |
| 01/20/1987 | US4637293 Slant plate type hydraulic device |
| 01/15/1987 | WO1987000247A1 Rotary piston pump |
| 01/14/1987 | CN85103883A 液压机 Hydraulic Press |
| 01/13/1987 | US4636146 Axial plunger pump |
| 01/13/1987 | US4635535 Hydraulic radial piston machines |
| 01/13/1987 | CA1216563A1 Fluid motors |
| 01/08/1987 | DE3610914A1 Swash-plate pivot bearing for a hydraulic axial-piston machine |
| 01/07/1987 | EP0207687A1 Rotary fluid pressure device having free-wheeling capability |
| 01/06/1987 | US4634349 Variable displacement fluid pump |
| 01/06/1987 | US4634297 Means for sealing of a bearing space formed in hydrostatic and aerostatic bearings adapted to receive a fluid |
| 01/02/1987 | DE3522171A1 Evolvent-radial-piston machine |
| 12/31/1986 | CN86103611A Rotary fluid pressure device having free-wheeling capability |
| 12/31/1986 | CN85105021A Swashplate type axial-piston pump |
| 12/30/1986 | US4632641 Pump arrangement for hydraulic installations |
| 12/30/1986 | EP0206550A1 Static hydraulic pressure type continuously variable transmission |
| 12/30/1986 | EP0205982A2 Axial-piston machine with a drive plate, a cylinder barrel, and a homokinetic joint arranged there between |
| 12/30/1986 | EP0205831A2 Axial plunger pump with double endface oil distribution |
| 12/23/1986 | US4631000 Variable displacement hydraulic pressure intensifier |
| 12/23/1986 | US4630528 Fluid motor with arresting and disarresting means |
| 12/17/1986 | EP0205368A1 Hydraulic mechanism, engine or pump with rollers mounted on the pistons and with means for keeping these rollers in position |
| 12/17/1986 | EP0204837A1 Swashplate centring device. |
| 12/17/1986 | EP0204835A1 Hydraulic swashplate unit with unitary bearing retainer. |
| 12/16/1986 | US4629401 Radial piston pump |
| 12/16/1986 | US4629400 Hydraulic pump with pistons and controlled suction valves |
| 12/16/1986 | US4628794 Control-pintle for fluid flow devices |
| 12/10/1986 | EP0204263A2 Piston pump with rotating piston |
| 12/10/1986 | EP0108746B1 Filled piston with central oil tube |
| 12/09/1986 | US4627330 Unitary bearing retainer for a swashplate bearing |
| 12/03/1986 | EP0203071A1 Hydrostatic diagonal piston pump or diagonal piston engine. |
| 12/03/1986 | EP0059712B1 Improved load-plus valve for variable displacement pumps |
| 11/25/1986 | US4624175 Quiet hydraulic apparatus |
| 11/25/1986 | CA1214532A1 Piston pump servo control |
| 11/20/1986 | EP0134211B1 Pumping device for hydraulic plants |
| 11/18/1986 | US4622885 Hydrostatic piston pump or engine having diagonal piston axis |
| 11/12/1986 | EP0201147A1 Pump |
| 11/04/1986 | CA1213469A1 Stroke control valve |
| 10/29/1986 | CN85202385U Two cylinder pedal water pump |
| 10/29/1986 | CN85103508A Hydraulic pressure motor and pump of fixed type ball-and-ream structure |
| 10/21/1986 | US4617853 Axial piston machine of the skew axis type with two independent working streams |
| 10/21/1986 | CA1212864A1 Hydraulic machines |
| 10/15/1986 | EP0197320A2 Radial piston pump |
| 10/07/1986 | US4615257 Swashplate type axial-piston pump |
| 10/07/1986 | CA1212273A1 Rocker cam control |
| 10/01/1986 | CN85100434A Power self-adapting non-pulse variable shifting reciprocal hydraulic press system |
| 09/30/1986 | US4614481 Pump with replaceable cartridge |
| 09/16/1986 | US4611529 In a fluid pressure energy translating device |
| 09/09/1986 | US4610609 Sealing apparatus for device having variable volume chambers |
| 09/09/1986 | US4610195 Piston for a hydraulic piston machine of the multiple displacement type |
| 09/03/1986 | CN86101891A Cylinder block for refrigerating compressor |
| 09/02/1986 | US4609331 Speed sensitive power steering valve |
| 09/02/1986 | US4609128 Volumetric measuring-dosing device for fluids |