| Patents for F04C 15 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups (7,179) |
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| 02/16/1989 | DE3824686A1 Gerotor-motor/pumpe Gerotor motor / pump |
| 02/08/1989 | EP0302728A2 Rotary valve plate |
| 02/02/1989 | DE3724684A1 Apparatus for separating off air |
| 02/01/1989 | EP0301886A2 Variable discharge gear pump with energy recovery |
| 01/25/1989 | EP0300175A2 Rotary-piston machine |
| 01/11/1989 | EP0254721B1 Vane pump |
| 01/04/1989 | EP0297274A2 Transfer arrangement consisting of a pump with a driving device |
| 01/04/1989 | EP0297147A1 Internal gear pump as a lubrication pump |
| 01/03/1989 | CA1247935A1 Vent-relief valve for a wet motor gerotor fuel pump |
| 12/14/1988 | EP0294399A1 Swivelling vane pump. |
| 12/07/1988 | EP0293585A1 Reversible gear machine (pump or motor) |
| 12/06/1988 | US4789317 Rotary vane oil pump and method of operating |
| 12/06/1988 | US4789315 Positive displacement machine, more particularly pump, and method for fabricating such pump |
| 12/06/1988 | US4789308 Self-contained electric fuel pump with output pressure regulation |
| 11/23/1988 | EP0291722A1 Gear machine (pump or motor) |
| 11/23/1988 | EP0291703A1 Gear machine (pump or motor) |
| 11/22/1988 | CA1245101A1 Thrust balancing device for a progressing cavity pump |
| 11/02/1988 | CN87102829A Floating shaft type gear pump-gear motor |
| 11/01/1988 | US4781552 High pressure hydraulic generator receiver for power transmission |
| 10/26/1988 | EP0287698A1 Fluid gear pump or motor |
| 10/25/1988 | US4780070 Gear pump having multiple outputs |
| 10/20/1988 | DE3710930A1 Eccentric spiral pump |
| 10/18/1988 | US4778080 Metering dispenser of a screw pump |
| 09/27/1988 | US4773836 Rotary vane pump |
| 09/20/1988 | US4772190 Vane cell pump having resilient sealing means biasing the pressure plate |
| 09/14/1988 | EP0282358A2 Improved inlet for a positive displacement pump |
| 09/13/1988 | US4770617 Gear pump with leakage fluid intermittently communicated to expanding fluid cells |
| 09/13/1988 | US4770616 Variable vane-type pump |
| 09/13/1988 | CA1241868A1 Wet motor gerotor fuel pump |
| 09/13/1988 | CA1241867A1 Wet motor gerotor fuel pump with self-aligning bearing |
| 09/06/1988 | US4768935 Volumetric blade pump for fluid-hydraulic actuation |
| 08/30/1988 | US4767378 Frontal magnet coupling with integrated magnetic bearing load relief |
| 08/30/1988 | US4767296 Trochoidal toothed oil pump with thin discharge channel communicating with discharge chamber |
| 08/30/1988 | US4767292 Electrical commutation apparatus |
| 08/30/1988 | US4767033 Manually operated gear pump spray head |
| 08/24/1988 | EP0279413A2 Motor lubrication with no external case drain |
| 08/10/1988 | EP0277131A1 Loop pump. |
| 08/09/1988 | US4762479 Motor lubrication with no external case drain |
| 08/04/1988 | DE3701586A1 Sealless pump |
| 07/28/1988 | WO1988005501A1 Gear machine (pump or engine) |
| 07/19/1988 | US4758141 Vane pump with flexible tongue valve |
| 07/19/1988 | US4758132 Rotary machine with motor embedded in the rotor |
| 07/12/1988 | US4756066 End of arm tooling for gerotor oil pump assembly |
| 06/30/1988 | WO1988003229A3 Swivelling impeller pump |
| 06/21/1988 | US4752195 Rotary vane type of pump with elongated damping chambers |
| 06/14/1988 | US4750867 Regulating pump |
| 06/07/1988 | CA1237601A1 Lobe rotor pumps |
| 05/31/1988 | US4747763 Rotor assembly of roots pump |
| 05/31/1988 | US4747744 Magnetic drive gerotor pump |
| 05/19/1988 | DE3638848A1 Unit for the delivery of fuel from a tank to the internal combustion engine, especially of a motor vehicle |
| 05/19/1988 | DE3636647A1 Fuel oil pump for optional single or double line operation |
| 05/17/1988 | US4744737 Electrically driven compressor with a peripheral housing weld |
| 05/10/1988 | US4743180 Reversible gear-type pump |
| 05/05/1988 | WO1988003229A2 Swivelling impeller pump |
| 04/27/1988 | EP0264444A1 Downhole screw motor |
| 04/19/1988 | US4738603 Hydraulic vane pump |
| 04/12/1988 | US4737087 Drive shaft seal for gear pump and method |
| 04/07/1988 | WO1988002438A1 Rotary machine |
| 04/06/1988 | EP0262189A1 High-pressure hydraulic generator-receiver for power transmission. |
| 03/30/1988 | EP0261757A2 Internal axis rotary piston machine with rotary valve |
| 03/03/1988 | DE3723894A1 Gear pump, in particular as a booster pump |
| 03/01/1988 | US4728271 Gear pump with improved pinion mounting |
| 03/01/1988 | CA1233364A1 Hydraulic energy-conversion device |
| 02/16/1988 | US4725211 Gear pumps |
| 02/11/1988 | WO1988001014A1 Synchronous multiactivated hydromotor |
| 02/09/1988 | US4723636 Braking device with multiple effects |
| 02/03/1988 | EP0255336A2 Rotary displacement pump |
| 02/03/1988 | EP0254721A1 Vane pump. |
| 02/02/1988 | US4722672 Hydraulic energy-conversion device |
| 01/27/1988 | EP0254077A2 Internal gear pump |
| 01/21/1988 | DE3624517A1 Internal gear pump |
| 01/14/1988 | DE3621967A1 Pipe-shaped pump unit with drive motor |
| 01/12/1988 | US4718833 Electropneumatic converter |
| 12/29/1987 | CA1230786A1 Water pump location for marine propulsion device |
| 12/22/1987 | CA1230520A1 Wet motor gerotor fuel pump with vapor vent valve and improved flow through the armature |
| 12/16/1987 | CN87103954A Compressor |
| 12/10/1987 | DE3709477A1 Hydraulic unit |
| 12/08/1987 | CA1230009A1 Wet motor gerotor fuel pump with fuel flow through the bearing for cooling thereof |
| 11/25/1987 | EP0246755A2 Fuel pump apparatus |
| 11/25/1987 | EP0246482A2 Vane pump |
| 11/19/1987 | DE3714243A1 Gear pump |
| 11/11/1987 | EP0244575A2 Internal-gear pump |
| 10/28/1987 | EP0242963A2 Rotary positive displacement pump |
| 10/27/1987 | US4702679 Peristaltic pump |
| 10/22/1987 | DE3613282A1 Vane-type pump |
| 10/13/1987 | US4699577 Internal gear device with improved rotary valve |
| 10/08/1987 | WO1987005975A1 High-pressure hydraulic generator-receiver for power transmission |
| 10/06/1987 | US4697995 Rotary positive displacement fuel pump with purge port |
| 10/06/1987 | US4697990 Variable capacity vane pump with means to vary the area of overlap |
| 09/09/1987 | EP0235150A1 Vane cell pump. |
| 09/02/1987 | EP0234067A1 Seal assembly which is hydraulically actuated |
| 08/27/1987 | DE3605914A1 Magnetic coupling having monitoring of the rotary movement |
| 08/26/1987 | EP0233485A2 Gear motor |
| 08/20/1987 | DE3605246A1 Gear machine (pump or motor) |
| 08/12/1987 | EP0231429A2 Gear pump |
| 08/11/1987 | US4685871 Gear pump with means for preventing shaft lock-up |
| 08/05/1987 | EP0230868A2 A rotary machine |
| 08/04/1987 | CA1224971A1 Gear rotor fuel pump |
| 07/30/1987 | DE3602226A1 Gear machine (pump or motor) |
| 07/21/1987 | US4681519 Rotor for rotary fluid pump |