| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 06/24/1987 | EP0226352A1 Gear pump |
| 06/24/1987 | EP0226177A1 Internally-meshing gears machine |
| 06/24/1987 | EP0225937A1 Rotary piston pump for conveying manure or the like |
| 06/24/1987 | CN86202360U Improved rubber blade of flexible blade pump |
| 06/23/1987 | US4674964 Gear pump having multiple outputs |
| 06/23/1987 | US4674963 Scroll type machine with tilting thrust bearing |
| 06/17/1987 | CN86204876U High-pressure gear pump (or motor) with combined dynamic-static pressure bearing |
| 06/16/1987 | US4673343 Rotary vane pump |
| 06/16/1987 | US4673342 Rotary pump device having an inner rotor with an epitrochoidal envelope tooth profile |
| 06/16/1987 | US4673341 Variable capacity roller- and vane-type pumps with non-circular cam profile |
| 06/16/1987 | EP0225338A1 Variable capacity pump. |
| 06/16/1987 | CA1222988A1 Scroll type fluid displacement apparatus |
| 06/16/1987 | CA1222985A1 Scroll-type fluid displacement apparatus |
| 06/16/1987 | CA1222984A1 Drive shaft support means for fluid displacement apparatus |
| 06/10/1987 | CN86203316U High-pressure paddle pump |
| 06/09/1987 | CA1222732A1 Scroll type fluid displacement apparatus |
| 06/03/1987 | CN85109203A Radial-movable variable-displacement gear pump (motor) |
| 06/03/1987 | CN85109201A Radial balance hydraulic pump with non-conventional kinetic and static pressure bearing (motor) |
| 06/02/1987 | US4669555 Downhole circulation pump |
| 05/27/1987 | CN86207118U Viscous material pump |
| 05/21/1987 | WO1987003047A1 Rotary pumps |
| 05/20/1987 | EP0222327A1 Positive-displacement compressor or pump |
| 05/20/1987 | EP0222265A1 Gerotor motor and improved lubrication flow circuit therefor |
| 05/20/1987 | CN85108580A Sliding screw vane pump |
| 05/20/1987 | CN85108579A Sliding vane screw pump |
| 05/19/1987 | US4666386 Rotary pump |
| 05/19/1987 | US4666382 Hydrostatic gear ring machine |
| 05/19/1987 | CA1221876A1 Apparatus for an hydrostatic compensation of hydraulic pumps and motors of gear type |
| 05/13/1987 | EP0221256A1 Gear pump |
| 05/13/1987 | EP0221252A1 Membrane cell pump |
| 05/12/1987 | US4664609 Vane holder for vane pump and method of making same |
| 05/06/1987 | EP0220318A1 Downhole screw motor |
| 05/06/1987 | EP0220187A1 Flow regulating device for a rotary piston pump. |
| 05/05/1987 | US4662046 Power transmission |
| 04/30/1987 | DE3537803A1 Rotary piston pump |
| 04/29/1987 | CN86107541A Axial sealing mechanism for scroll type fluid displacement apparatus |
| 04/21/1987 | US4659296 Rotary vane pump with plural outlet ports and relationship for cam surface radii |
| 04/21/1987 | US4658583 Double staged, internal rotary pump with flow control |
| 04/14/1987 | US4657494 Planetary-rotor hydraulic motor with reversing mechanism |
| 04/14/1987 | US4657492 Rotor for a rotary pump |
| 04/14/1987 | US4657491 Blade sealing for impeller pumps |
| 04/09/1987 | WO1987002096A1 Rotary engine |
| 04/08/1987 | EP0217422A2 Gerotor motor and improved lubrication flow circuit therefor |
| 04/08/1987 | EP0216999A2 An external gear pump or gear motor unit of the asymmetric radial floating type |
| 04/07/1987 | CA1220085A1 Power transmission |
| 04/07/1987 | CA1220084A1 Variable displacement gerotor pump |
| 03/31/1987 | US4653991 Vane type compressor with fluid pressure biased vanes |
| 03/25/1987 | CN85109202A Radial-balance gear pump (motor) using the teeth top as support |
| 03/24/1987 | US4651897 Portable progressive cavity pump |
| 03/18/1987 | EP0214164A1 Positive displacement machine, particularly pump. |
| 03/17/1987 | US4649612 Method of manufacturing a rotor for rotary fluid pumps |
| 03/12/1987 | WO1987001417A1 Positive displacement pump or motor |
| 03/10/1987 | US4648816 Gear pump with retaining rings for the end bushes |
| 03/10/1987 | CA1218817A1 Extruder screw and positive displacement pump assembly |
| 03/04/1987 | CN85104862A Rotary fluid machines |
| 02/25/1987 | EP0211723A1 Purely hydraulic action device for the hydrostatic compensation of hydraulic gear pumps and motors |
| 02/25/1987 | CN86103317A Eddy fluid machinery |
| 02/24/1987 | US4645441 Internal-gear pump with partition plate having a chamfered edge |
| 02/24/1987 | US4645439 Adjustable gear pump |
| 02/24/1987 | US4645438 Gerotor motor and improved lubrication flow circuit therefor |
| 02/11/1987 | CN86104412A Bicorn rotator pump |
| 02/04/1987 | EP0210786A1 Improvements relating to variable delivery pumps |
| 02/03/1987 | CA1217387A1 Rotary vane pump |
| 01/29/1987 | WO1987000587A1 Vane pump |
| 01/29/1987 | DE3525966A1 Rolling-element bearing pump |
| 01/28/1987 | EP0209984A1 Screw pump |
| 01/27/1987 | US4639203 Rotary fluid pressure device having free-wheeling capability |
| 01/27/1987 | US4639202 Gerotor device with dual valving plates |
| 01/27/1987 | US4639200 Sealing apparatus for a gear ball joint |
| 01/27/1987 | CA1217089A1 Rotary gerotor hydraulic device with fluid control passageways through the rotor |
| 01/22/1987 | DE3524894A1 Vane pump |
| 01/21/1987 | EP0209099A1 Stator for a helical gear pump |
| 01/20/1987 | US4637787 Hydraulic screw machine |
| 01/20/1987 | US4637785 Rotary pump with cutter device for contaminated fluids |
| 01/20/1987 | US4637782 Rotary vane pump |
| 01/17/1987 | CN85100742A Radial floating type gear pump and gear motor |
| 01/13/1987 | US4636157 Toroidal motor or pump |
| 01/13/1987 | US4636155 Hydraulic seal having U-shaped gasket and a plurality of plastically deformable posts |
| 01/13/1987 | CA1216468A1 Rotary vaned pumps with fixed length and shearing knife-edged vanes |
| 01/10/1987 | CN85101431A 旋转式流体机械 Rotary fluid machine |
| 01/07/1987 | EP0207687A1 Rotary fluid pressure device having free-wheeling capability |
| 01/07/1987 | CN85104920A Rotary type fluid machine |
| 01/06/1987 | US4634354 Hydraulic pump |
| 12/31/1986 | CN86103611A Rotary fluid pressure device having free-wheeling capability |
| 12/31/1986 | CN85204823U Revolving-block sliding-vane pump |
| 12/30/1986 | EP0205954A1 Positive-displacement machine |
| 12/17/1986 | EP0205103A2 Rotor assembly of roots pump |
| 12/17/1986 | EP0205036A2 Rotary vane pump |
| 12/17/1986 | EP0205006A2 Magnetically driven cylinder pump |
| 12/10/1986 | EP0204170A1 Sewage transporting device |
| 12/10/1986 | CN85104250A Nondissipative water pump |
| 12/10/1986 | CN85104242A Self-supporting gear oil pump |
| 12/10/1986 | CN85103606A Large internally tangent arc unloading vane-type pumpmotor |
| 12/10/1986 | CN85103605A High rigidty and radially precislon balanced gear pump motor |
| 12/02/1986 | US4626181 Rotary hydrostatic machine with heated center housing port |
| 12/02/1986 | US4626179 Axial thrust load mechanism for a scroll type fluid displacement apparatus |
| 11/26/1986 | EP0202816A2 Stackable rotary vane pump with improved volumetric efficiency |
| 11/20/1986 | WO1986006797A2 Variable capacity pump |
| 11/18/1986 | US4623305 Hydraulic screw machine |
| 11/18/1986 | US4622717 Portioning machine to fill molds with plastic food material and use of same |