| Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723) |
|---|
| 09/14/1982 | US4348946 Radial piston machine with free--floating piston and piston--shoe assemblies |
| 09/01/1982 | EP0058878A1 Device for turning suspended loads |
| 08/31/1982 | US4346645 Hydraulic axial piston engine |
| 08/03/1982 | US4342544 Reciprocating pump |
| 07/20/1982 | US4340338 Hydraulic pressure biased linear motion thrust block for hydraulic pumps and motors |
| 07/20/1982 | US4340337 Positive displacement pump systems |
| 06/22/1982 | US4336003 Crane swing control |
| 06/16/1982 | EP0053631A1 Variable positive displacement fluid motor/pump apparatus |
| 06/15/1982 | US4334832 Constant output fluid pump |
| 06/01/1982 | US4332532 Piston pump, especially radial piston pump |
| 06/01/1982 | US4332531 Variable displacement pump with torque limiting control |
| 06/01/1982 | US4332392 Dual sealing ring seal with hydraulic expansion |
| 06/01/1982 | CA1124696A1 Drive shaft lug for variable displacement compressor |
| 05/25/1982 | US4331064 Pressurized fluid mechanism such as a hydraulic engine |
| 05/19/1982 | EP0051795A1 Coaxial double-pump |
| 05/18/1982 | CA1123663A1 Radial piston hydraulic pump or motor with stabilized pintle shaft |
| 05/11/1982 | US4329121 Force delivering hand tool |
| 05/11/1982 | US4328739 Hydrostatic piston machine |
| 05/11/1982 | CA1123402A1 Pressure operated hydraulic control valve |
| 04/01/1982 | WO1982001048A1 Multiple pump system with horsepower limiting control |
| 04/01/1982 | WO1982001047A1 Torque and high pressure limiting control for variable displacement pumps |
| 04/01/1982 | WO1982001046A1 Horsepower consumption control for variable displacement pumps |
| 04/01/1982 | WO1982001045A1 Improved load-plus valve for variable displacement pumps |
| 04/01/1982 | WO1982001044A1 Unloading means for flow-pressure compensated valve |
| 03/30/1982 | CA1120737A1 Composite drive shafts |
| 03/09/1982 | CA1119463A1 Pressure compensated pump |
| 02/23/1982 | CA1118641A1 Displacement control valve for a radial piston device |
| 02/17/1982 | EP0045832A1 A control system for a variable displacement pump |
| 02/16/1982 | CA1118365A1 Reverse osmosis method and apparatus |
| 02/02/1982 | US4313714 High pressure radial pump |
| 02/02/1982 | CA1117368A1 Inlet inducer-impeller for piston pump |
| 02/02/1982 | CA1117365A1 Electrohydraulic control for an axial piston pump |
| 01/27/1982 | EP0044313A1 Piston machine. |
| 01/20/1982 | EP0044070A1 Axial piston pump with two delivery streams |
| 01/19/1982 | US4311437 Radial piston pump |
| 01/12/1982 | US4310290 Radial piston pump |
| 01/12/1982 | US4310203 Hydrostatic support assembly |
| 01/06/1982 | EP0043011A1 Two-cylinder concrete pump |
| 12/24/1981 | WO1981003677A1 Variable positive displacement fluid motor/pump apparatus |
| 12/09/1981 | EP0041312A1 Jet cooling pump |
| 12/08/1981 | US4304533 Body having fluid passages |
| 12/08/1981 | US4304173 Thermal barrel motor |
| 12/01/1981 | US4303004 Snap ring assembly for two bodies |
| 11/18/1981 | EP0040161A1 Wobble plate of an axial-type piston pump |
| 11/03/1981 | US4298315 Positive displacement pump systems |
| 10/27/1981 | US4297086 Fluid motor-pump unit |
| 10/27/1981 | US4296676 Control mechanism |
| 10/20/1981 | US4295690 Hydrostatic bearing for a radial piston machine |
| 10/13/1981 | US4294139 Drive for a machine comprising variable-stroke reciprocating pistons |
| 10/06/1981 | CA1110109A1 Hydraulic unit and transfer tube and seal structure therefor |
| 09/15/1981 | US4289452 Pressure compensated pump |
| 09/08/1981 | US4288326 Rotary shaft driven reverse osmosis method and apparatus |
| 09/01/1981 | US4286927 Hydraulic power transfer unit |
| 09/01/1981 | US4286503 Machine of the axial piston pump type which can be used as a pump or as a motor |
| 08/27/1981 | EP0027820A4 Parallel cylinder internal combustion engine. |
| 08/25/1981 | CA1107565A1 Free piston fluid energy transfer device |
| 08/11/1981 | CA1106694A1 Dual piston pump with pressure seal lubrication feature |
| 08/04/1981 | US4281971 Inlet inducer-impeller for piston pump |
| 08/04/1981 | US4281687 Fluid storage device |
| 07/23/1981 | WO1981002040A1 Piston machine |
| 07/21/1981 | US4279194 Hydrostatic unit with axial pistons having a variable stroke volume |
| 07/07/1981 | US4277228 Radial piston pump |
| 07/07/1981 | CA1104537A1 Variable capacity compressor |
| 06/30/1981 | US4276003 Reciprocating piston pump system with screw drive |
| 06/30/1981 | US4275998 Piston pump |
| 06/16/1981 | US4273517 Control device for an axial piston machine |
| 06/09/1981 | CA1102760A1 Filling machine to handle liquid products |
| 06/02/1981 | US4270731 Valve with non-binding spool |
| 05/26/1981 | US4269574 Fluid device |
| 05/06/1981 | EP0027820A1 Parallel cylinder internal combustion engine |
| 05/05/1981 | US4265497 Radial bearing |
| 05/05/1981 | US4265165 Radial piston fluid translating device with power conserving scavenging means |
| 04/28/1981 | US4264286 Multiple fluid pump |
| 04/28/1981 | US4264283 Pump for liquids |
| 04/14/1981 | US4261250 Slide shoe arrangement, particularly for axial and radial piston machines |
| 04/14/1981 | CA1099181A1 Control valve for use with variable displacement piston pump of the type including hydrostatic thrust bearing means |
| 04/14/1981 | CA1099149A1 Variable displacement piston pump |
| 04/07/1981 | US4260342 Dual-piston reciprocating pump assembly |
| 04/07/1981 | CA1098765A1 Dual-piston reciprocating pump assembly |
| 04/01/1981 | EP0025790A1 Fluid pressure machines. |
| 03/25/1981 | EP0025438A1 Axial piston pump. |
| 03/24/1981 | US4257750 Radial piston pump |
| 03/24/1981 | US4257440 Injection pump for sprinkler systems |
| 03/17/1981 | US4256018 Radial piston fluid engine |
| 03/11/1981 | EP0024557A1 Radial piston fluid translating device with power conserving scavenging means |
| 03/10/1981 | US4255097 Fuel injection pump |
| 03/10/1981 | US4255092 Hydraulic variable-displacement axial piston pump having torque limitation |
| 03/05/1981 | WO1981000597A1 Radial piston fluid translating device with power conserving scavenging means |
| 03/03/1981 | US4253381 Hydraulic machine of the multicylinder drum type |
| 02/24/1981 | US4252508 Pump unit |
| 02/24/1981 | US4252051 Apparatus for supporting piston shoes of axial piston type hydraulic pump/motor |
| 02/24/1981 | CA1096270A1 Hydraulic control system |
| 02/17/1981 | CA1095810A1 Hydraulic control system |
| 02/05/1981 | WO1981000287A1 Displacement control valving for a radial piston device |
| 02/04/1981 | EP0023467A1 Fuel injection pump |
| 02/04/1981 | EP0023323A2 Control device for a hydrostatic transmission or a piston pump |
| 02/03/1981 | US4248137 Feedback mechanism for variable displacement hydraulic device having an electrohydraulic controller |
| 01/21/1981 | EP0022563A1 Displacement control valve for a radial piston device |
| 01/20/1981 | US4245963 Pump |
| 01/13/1981 | US4244279 Hydrostatic transmission lubrication |