| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 06/11/2008 | CN201071804Y Low pressure balancing type three screw rod pump |
| 06/11/2008 | CN201071803Y Immersion type three screw-rod pump |
| 06/11/2008 | CN101198766A Balancing plate-shuttle ball |
| 06/11/2008 | CN101196190A Vane pump |
| 06/11/2008 | CN101196189A Bidirectional constant flux gear pump |
| 06/11/2008 | CN101196188A Hydraulic pump of automatic transmission |
| 06/11/2008 | CN101196187A Engine rotor engine oil pump |
| 06/11/2008 | CN101196186A Bidirectional rotor mix transportation machine |
| 06/11/2008 | CN100394020C Fuel-supplying apparatus |
| 06/10/2008 | US7384251 Trochoidal oil pump |
| 06/10/2008 | US7384250 Oil discharge preventing apparatus of scroll compressor |
| 06/10/2008 | US7383898 Inner and outer motor with eccentric stabilizer |
| 06/05/2008 | WO2008065017A1 System for sealing the piston of rotary piston machines |
| 06/05/2008 | US20080131298 Fluid Pump and Motor |
| 06/05/2008 | DE112005003637T5 Zahnradpumpe Gear pump |
| 06/05/2008 | DE102007054544A1 Rotary piston pump for tank lorry, has pipe line fixedly connected with tank and exit pipe line, housing part with its pipe lines fixedly connected with tank, and another housing part screwing housing with former housing part |
| 06/05/2008 | DE102006056845A1 Delivery unit e.g. citation pump of electrical submersible pump systems and an oil pump for internal combustion engine, has gear train, internal gear wheel and external gear wheel |
| 06/05/2008 | DE102006056844A1 Innenzahnradpumpe Internal gear pump |
| 06/05/2008 | CA2671017A1 Principle and system of sealing the piston of rotary piston engines |
| 06/04/2008 | EP1927753A2 Conveying unit |
| 06/04/2008 | EP1927752A1 Oil pump rotor |
| 06/04/2008 | EP1458979B1 Vane of compressor |
| 06/04/2008 | CN201068857Y Pipeline-type fuel-oil transfer pump |
| 06/04/2008 | CN100392249C Arc screw tooth shape of large flow double screw pump |
| 06/03/2008 | US7381039 Rotary compressor having a stepped cover of a discharge muffler chamber |
| 06/03/2008 | US7381037 Apparatus for varying capacity of scroll compressor |
| 06/03/2008 | US7381036 Motor-pump unit |
| 05/29/2008 | WO2008062023A1 Rotary displacement machine |
| 05/29/2008 | US20080124237 Bi-Directional Pump Mechanism for Balanced Flow Fluid Exchanger |
| 05/29/2008 | US20080124236 Scroll-Type Apparatus |
| 05/29/2008 | US20080120985 Rotary compressor, control method thereof, and air conditioner using the same |
| 05/28/2008 | EP1925823A1 External gear machine |
| 05/28/2008 | EP1925822A1 External gear machine |
| 05/28/2008 | EP1925778A1 Vane pump |
| 05/28/2008 | EP1925777A1 Vane pump |
| 05/28/2008 | CN201065829Y Large displacement helical gear pump |
| 05/28/2008 | CN101187369A Vane pump |
| 05/28/2008 | CN101187368A Vane pump |
| 05/28/2008 | CN101187367A Downhole double screw pump system |
| 05/28/2008 | CN101187366A Highly effective inner mesh gear pump or motor |
| 05/28/2008 | CN100390416C Variable volume flow rotor pump |
| 05/27/2008 | US7377312 Oil well pump apparatus |
| 05/27/2008 | CA2451462C Method for making a moineau pump stator and resulting stator |
| 05/22/2008 | US20080118372 Variable displacement vane pump |
| 05/21/2008 | EP1923570A1 Hydraulic gear wheel machine |
| 05/21/2008 | DE102007023679A1 Verstellbare Flügelpumpe Variable displacement vane pump |
| 05/21/2008 | DE102006057165A1 Trinkwasseraufbereitungsvorrichtung Drinking water treatment device |
| 05/21/2008 | DE102006053957A1 Hydraulische Zahnradmaschine Hydraulic gear machine |
| 05/21/2008 | CN201062578Y Axial wiper type rotary pump |
| 05/21/2008 | CN101184920A Gear machine for combining two fluid streams and associated method |
| 05/21/2008 | CN101182842A Volume variable vane pump |
| 05/21/2008 | CN100389284C Machine oil pump of I.C. engine |
| 05/21/2008 | CN100389264C Screw conveyor for the transport of flowable substances and/or lumps of material |
| 05/20/2008 | US7374411 Oil pump adapted to prevent leakage without using sealing member |
| 05/20/2008 | CA2387833C Eccentric screw pump with fully lined stator |
| 05/15/2008 | DE102006052996A1 Vane pump for steering unit of motor vehicle, has housing, outer ring and front plate centered to shaft, where front plate is provided with shaft hub that is provided with outlet for leakage oil |
| 05/14/2008 | EP1921326A1 Supply unit for hydraulic fluid |
| 05/14/2008 | EP1921319A2 A positive-displacement rotary pump with helical rotors |
| 05/14/2008 | EP1921318A1 Uniaxial eccentric screw pump |
| 05/14/2008 | EP1921317A2 Oil supplying apparatus for engine |
| 05/14/2008 | EP1921316A1 Internal gear pump |
| 05/14/2008 | EP1921315A1 Internal gear oil pump |
| 05/14/2008 | CN201059266Y High-performance hydraulic turbine pump |
| 05/14/2008 | CN201059265Y Novel impeller rotary pump |
| 05/14/2008 | CN201059264Y Deflecting impeller pump stator |
| 05/14/2008 | CN101178064A Oil supplying apparatus for engine |
| 05/14/2008 | CN101178063A 油泵 Pump |
| 05/14/2008 | CN100387841C Roller vane pump |
| 05/13/2008 | US7371059 Scroll compressor with discharge valve |
| 05/08/2008 | WO2008054244A1 Rotary vane machine |
| 05/08/2008 | US20080107557 Oil pump |
| 05/08/2008 | DE102006052322A1 Hydraulic machine comprises two tooth sets, each of which has outer-toothed gear wheel and cooperating toothed element, where gear wheels are connected with the adjacent sets through oldham coupling |
| 05/08/2008 | DE102006049663A1 Screw spindle pump for conveying working fluid, particularly lubricant or cooling lubricant, has pump spindles, which are rotatably mounted in housing, where pump spindles are supported in axial direction by axial bearing in housing |
| 05/08/2008 | CA2667689A1 Rotor vane machine |
| 05/07/2008 | EP1917441A1 Pump housing |
| 05/07/2008 | EP1404973B2 Method for making a moineau pump stator and resulting stator |
| 05/07/2008 | CN201057146Y Vehicle steering pump |
| 05/07/2008 | CN201057145Y Vehicle steering pump |
| 05/07/2008 | CN201057144Y Control pump for hydrodynamic torque converter |
| 05/07/2008 | CN201057143Y Engine oil pump for single and dual-cylinder horizontal diesel engine |
| 05/07/2008 | CN201057122Y Strong-sealing high-speed stream cycloid hydraulic motor and high-pressure rotating shaft seal |
| 05/07/2008 | CN101173661A Variable displacement vane pump and method of manufacturing the same |
| 05/07/2008 | CN101173660A Variable displacement pump |
| 05/07/2008 | CN101173659A Variable displacement pump |
| 05/07/2008 | CA2608674A1 Decoupled shaft seal for a progressive cavity pump stuffing box |
| 05/06/2008 | US7367782 Pump plate of a rotary feed pump |
| 05/06/2008 | CA2350578C Rotor for an eccentric screw pump or a subsurface drilling motor |
| 05/02/2008 | WO2008050212A2 Variable delivery rotary vane pump |
| 04/30/2008 | EP1916421A2 Pump drive assembly |
| 04/30/2008 | EP1570180B1 Screw pump |
| 04/30/2008 | EP1180217B1 Toothed rotor set |
| 04/30/2008 | CN201053394Y Elastic vacuum rotor pump |
| 04/30/2008 | CN201053393Y Gear pump for improving side plate compensation structure |
| 04/30/2008 | CN101171426A Internal gear fuel pump |
| 04/30/2008 | CN101169115A Rotor pump and method for producing same |
| 04/30/2008 | CN100385121C Air compressor |
| 04/29/2008 | US7364418 Scroll fluid machine having an adjustment member with a deformable element |
| 04/29/2008 | US7364416 Scroll type compressor with an enhanced sealing arrangement |
| 04/24/2008 | WO2008046828A1 Rotary positive displacement pump with magnetic coupling having integrated cooling system |
| 04/24/2008 | WO2008046423A1 Arrangement for transmitting torsional forces |