| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 01/14/2004 | EP1380754A2 Trochoidal pump |
| 01/14/2004 | EP1380753A2 Internal gear oil pump rotor |
| 01/14/2004 | CN2599282Y One roll two thread metering pump |
| 01/14/2004 | CN1134592C Screw compressor |
| 01/13/2004 | US6676394 Internal-gear pump having a pinion with radial play |
| 01/13/2004 | US6675823 Relief valve |
| 01/08/2004 | WO2004003345A1 Internal gear machine with variable capacity |
| 01/08/2004 | US20040005229 Electric compressor |
| 01/08/2004 | DE10227313A1 Pumpe Pump |
| 01/07/2004 | EP1378687A2 Lubrication pump for inter-axle differential |
| 01/07/2004 | EP1378666A1 Hermetic compressor |
| 01/07/2004 | EP1378665A1 Vane pump |
| 01/07/2004 | EP1377757A1 Clutch assembly with a gear pump |
| 01/07/2004 | EP1259737B1 Control device for positive displacement pumps |
| 01/07/2004 | CN2597710Y Blade oil pump |
| 01/07/2004 | CN1465864A Vane pump |
| 01/06/2004 | US6672854 Tooth set for a hydraulic machine |
| 01/06/2004 | US6672853 Center driven pressure clamped hydraulic pump |
| 01/06/2004 | US6672850 Torque control oil pump with low parasitic loss and rapid pressure transient response |
| 01/02/2004 | EP1375922A2 Oil vane pump |
| 01/02/2004 | EP1373734A1 Gear feed pump |
| 01/01/2004 | US20040001771 Gas compressor |
| 01/01/2004 | CA2433824A1 Lubrication pump for inter-axle differential |
| 12/31/2003 | WO2003067030A3 Gerotor apparatus for a quasi-isothermal brayton cycle engine |
| 12/31/2003 | CN2596070Y Vane rotator pump |
| 12/31/2003 | CN1464197A Variable delivery pump |
| 12/24/2003 | WO2003106237A1 Motor/pump unit, especially for antislip brake systems |
| 12/24/2003 | DE29624460U1 Inner toothed wheel machine (Pump or engine) - comprises of housing with outer toothed pinion which has comb-end inner toothed hollow wheel between which there are passages on ring gear |
| 12/24/2003 | CN2594495Y Composite blade hydraulic devices |
| 12/24/2003 | CN1463330A 内齿轮泵 Internal gear pump |
| 12/24/2003 | CN1462836A 旋转活塞泵 Rotary piston pump |
| 12/23/2003 | US6666670 Power steering pump |
| 12/23/2003 | US6666668 Stator with rigid retaining ring |
| 12/23/2003 | US6666666 Multi-chamber positive displacement fluid device |
| 12/18/2003 | WO2003040565A3 Continuous-flow pump and stepless speed change drive |
| 12/18/2003 | US20030231972 Rotary positive-displacement pump with meshing gear wheels without encapsulation, and gear wheel for such a positive-displacement pump |
| 12/17/2003 | EP1371850A1 Rotary fluid pressure device with a vented high pressure shaft seal |
| 12/17/2003 | EP1371849A1 Detachable heads for hydraulic pumps and motors |
| 12/17/2003 | EP1371848A1 Gear pump with spline function generated gear profile |
| 12/17/2003 | EP1370771A1 Self-centering gear pump |
| 12/17/2003 | EP0971756B1 Artificial heart capable of being wholly implanted |
| 12/17/2003 | CN2592902Y Series gear pump with symmetrical big-toogh, high-coefficient non-standard long-thin tooth |
| 12/17/2003 | CN2592900Y Differential high-pressure rotor pump |
| 12/17/2003 | CN1461888A Compressor |
| 12/17/2003 | CN1131377C Slit ring seal |
| 12/16/2003 | US6663527 Planetary gear system for controlling torque transfer in a vehicle driveline |
| 12/16/2003 | US6663368 Spherical gear pump |
| 12/16/2003 | US6663357 Vane pump wear sensor for predicted failure mode |
| 12/11/2003 | WO2003102420A1 Gear pump |
| 12/11/2003 | WO2003102417A1 Four-in pump |
| 12/11/2003 | US20030228237 Gerotor apparatus for a quasi-isothermal Brayton Cycle engine |
| 12/11/2003 | US20030227216 Rotary pump for braking apparatus |
| 12/11/2003 | US20030227140 Vented high pressure shaft seal |
| 12/11/2003 | DE10248933C1 Electrically-driven internal cogwheel pump has casing screening stator of electric motor from internally toothed hollow wheel and cooperating externally toothed wheel pressed against bearing pin for latter |
| 12/10/2003 | EP1369588A1 Gerotor pump |
| 12/10/2003 | EP1212533B1 Rotary displacement machine with at least two displacement gearwheels with external teeth and a housing for such a machine |
| 12/10/2003 | CN2591278Y Gear pump |
| 12/10/2003 | CN2591277Y Non-friction blade pump |
| 12/10/2003 | CN2591276Y High pressure pump for spraying liquid, soft mortar and coating |
| 12/10/2003 | CN2591275Y Cycloidal oil pump rotator |
| 12/10/2003 | CN1460607A Counter-rotating positive displacement machinery |
| 12/09/2003 | US6659748 Axial compensation in an inner geared pump for a closed circuit |
| 12/09/2003 | US6659744 Rotary two axis expansible chamber pump with pivotal link |
| 12/09/2003 | US6659728 Liquid dispensing pump system |
| 12/04/2003 | WO2003100257A1 Multi-chamber positive displacement fluid device |
| 12/04/2003 | WO2003100255A1 Rotor machine |
| 12/04/2003 | US20030223896 Multi-chamber positive displacement fluid device |
| 12/04/2003 | DE10255271C1 Rotor pump with variable flow volume adjusted via rotatable setting ring altering relative positions of inner and outer rotors relative to suction and pressure connections |
| 12/03/2003 | EP1365906A1 Screw pump and multi-screw extruder comprising a screw pump of this type |
| 12/03/2003 | EP1071519B1 Segmented metering die for hot melt adhesives or other polymer melts |
| 12/03/2003 | EP0852674B1 Micromotor and micropump |
| 12/03/2003 | CN2589693Y High-performance reciprocating rotor thick oil pump |
| 12/03/2003 | CN2589692Y Displacement variable power steering pump for automobile |
| 12/03/2003 | CN2589691Y Saline injection pump |
| 12/03/2003 | CN1459571A Air compressor |
| 12/03/2003 | CN1459570A Metering pump used for transporting molten metal |
| 12/02/2003 | US6655936 Rotary vane pump with under-vane pump |
| 12/02/2003 | CA2103539C Vane pump |
| 11/28/2003 | CA2388191A1 Multi-intake progressive cavity pump |
| 11/27/2003 | WO2003098016A1 Rotary engine with counter-rotating housing and crankshaft |
| 11/27/2003 | US20030219336 Reversible volumetric machine |
| 11/26/2003 | EP1365153A1 Gas compressor |
| 11/26/2003 | EP1365151A1 Gerotor motor with lubrication grooves |
| 11/26/2003 | EP1365105A1 Reversible gearwheels volumetric machine |
| 11/26/2003 | EP1364127A1 Internal gear pump that does not contain any filler elements |
| 11/26/2003 | EP1364126A1 Internal gear pump that does not contain any filler elements |
| 11/26/2003 | CN2588076Y Double-cavity high concentration material rotor pump |
| 11/26/2003 | CN1128932C Rotary machine |
| 11/26/2003 | CN1128931C Gear and fluid machine with gear pair |
| 11/25/2003 | US6652253 Hydraulic pump having a noise reduction recess |
| 11/25/2003 | US6651849 Dispensing apparatus including a pump package system |
| 11/20/2003 | WO2003095840A1 Variable-delivery rotary pump, in particular for oil |
| 11/20/2003 | WO2003044368A8 Vane pump having a pressure compensating valve |
| 11/20/2003 | US20030215345 Gerotor apparatus for a quasi-isothermal brayton cycle engine |
| 11/20/2003 | US20030213460 Rotary engine with counter-rotating housing and output shaft mounted on stationary spindle |
| 11/19/2003 | EP1363025A2 Variable capacity pump |
| 11/19/2003 | CN2586830Y Roller sliding-vane pump |
| 11/19/2003 | CN1128294C Double-function variable vane pump |
| 11/18/2003 | US6648620 Rotary pump apparatus |
| 11/18/2003 | US6648611 Gerotor pump having an eccentric ring housing with an integral pressure chamber |