| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
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| 10/24/2007 | CN200964945Y Power-driven steering oil pump for automobile |
| 10/24/2007 | CN200964944Y 齿轮泵 Gear pumps |
| 10/24/2007 | CN101061317A Vane pump consisting two-part stator |
| 10/24/2007 | CN101061316A Rotary displacement pump comprising scraper and guide of the scraper |
| 10/24/2007 | CN101059132A Pressure type self-supply pump |
| 10/24/2007 | CN100344880C Refrigerating pump |
| 10/18/2007 | WO2007115544A1 Vane pump |
| 10/18/2007 | US20070240674 Multilobe rotary motion asymetric compression/expansion engine |
| 10/18/2007 | DE10258666B4 Tauchpumpeneinrichtung zur Verwendung in einem Bohrloch Submersible pump device for use in a wellbore |
| 10/18/2007 | DE102006016466A1 Vane-type pump e.g. fuel pump, for use in automatic gear unit of motor vehicle for delivering fluid, has cam ring of pump permanently magnetized in such a manner that it exerts constant attractive force on impulse |
| 10/18/2007 | DE102006013983A1 Cardiac support system e.g. artificial heart, for simulating heart function, has positive-displacement pumps with common drive, and cylinder housing that includes parallel side surfaces, where pumps are arranged one behind other |
| 10/17/2007 | EP1845262A2 Axial flow positive displacement worm pump |
| 10/17/2007 | CN200961578Y Large runoff combined pump |
| 10/17/2007 | CN200961577Y Sewing machine supply-sucking oil pump |
| 10/17/2007 | CN200961576Y Linearly conjugated inside engaged gear pump |
| 10/17/2007 | CN200961491Y Bidirectional hydraulic gear oil pump and motor axial side plate |
| 10/17/2007 | CN101054974A Cam rotor mechanism for pump or motor |
| 10/17/2007 | CN101054973A Blade type pump |
| 10/17/2007 | CN101054972A Axial flow positive displacement worm pump |
| 10/16/2007 | US7281906 Oil pump for automatic transmission |
| 10/16/2007 | CA2500411C Extruder/gear pump assembly |
| 10/11/2007 | US20070237666 Low noise gear pump |
| 10/11/2007 | US20070237023 Gear Pump |
| 10/10/2007 | EP1388131B1 Improved fluid metering device |
| 10/10/2007 | CN200958476Y Improvement of balanced external-loop and multiple phase-fluid pump rotor |
| 10/10/2007 | CN101052806A 泵 Pump |
| 10/10/2007 | CA2576684A1 Axial flow positive displacement worm pump |
| 10/09/2007 | US7278841 Gerotor pump |
| 10/09/2007 | CA2178562C A gerotor pump and drive systems employing the pump |
| 10/04/2007 | US20070231169 Gear Pump and Method of Producing the Same |
| 10/04/2007 | DE102006016244A1 Rotor pump e.g. vacuum pump, has rotor rotatably supported within interior space of pump housing, where slot of rotor is provided with inserts respectively placed at both sides facing impeller, where insert is steel sheet piece |
| 10/04/2007 | DE102006016243A1 Rotor pump`s e.g. vacuum pump, vane, has vane body comprising frame work structure with internal compartment walls transverse to longitudinal direction of vane, where internal compartment walls run in longitudinal axis |
| 10/04/2007 | DE102006016241A1 Rotor pump e.g. vacuum pump, for use in motor vehicle, has adjustable lubricant feed rate- limiter provided in supply line and comprising orifice plate, and mandrel insertable into opening of orifice plate |
| 10/03/2007 | EP1840376A2 Oil Pump |
| 10/03/2007 | EP1840327A2 Internal gear pump |
| 10/03/2007 | CN200955497Y Automobile steering vane pump |
| 10/03/2007 | CN200955496Y Speed-variation pump |
| 10/03/2007 | CN200955495Y 齿轮泵 Gear pumps |
| 10/03/2007 | CN200955494Y High-delivery-head peristaltic displacement pump |
| 10/03/2007 | CN200955493Y Piezoelectric gear pump |
| 10/03/2007 | CN200955440Y Tetragonal rotor engine |
| 10/03/2007 | CN101046199A Spraying gear pump |
| 10/03/2007 | CN101046198A Horizontal water colled double-sucking double screw pump |
| 10/03/2007 | CN101046197A 溢流阀 Relief |
| 10/03/2007 | CN100340773C Internal heat exchanging vortex mechanism |
| 10/02/2007 | US7275921 Pumps |
| 10/02/2007 | US7275919 Rotary engine seal assembly |
| 10/02/2007 | US7275918 Scroll apparatus with an axial gap control function |
| 10/02/2007 | US7275592 Oil well pump apparatus |
| 10/02/2007 | CA2262898C Screw rotor set |
| 09/27/2007 | WO2007107082A1 Hydraulic pump |
| 09/27/2007 | US20070224062 Oil pump structure of transmission |
| 09/27/2007 | DE202007008373U1 Zinkpumpe für eine Warmkammer-Druckgießmaschine Zinc pump for hot chamber die casting machine |
| 09/27/2007 | DE112005002761T5 Kombinationspumpe Combination pump |
| 09/26/2007 | EP1837523A1 Oil pump structure of transmission |
| 09/26/2007 | EP1837522A1 Inner rotor for internal gear pump |
| 09/26/2007 | CN200952473Y Gear pump for electric sprayer |
| 09/26/2007 | CN200952472Y Round side bevel rotor pump |
| 09/26/2007 | CN200952471Y Flexible self-priming rotary-tooth pump |
| 09/26/2007 | CN200952470Y Tooth shape screw |
| 09/26/2007 | CN200952469Y 32 50ml/r displacement medium and high pressure gear pump |
| 09/26/2007 | CN101042181A Oil pump structure of transmission |
| 09/26/2007 | CN101042134A 油泵 Pump |
| 09/26/2007 | CN101042133A 变排量叶片泵 Variable displacement vane pump |
| 09/26/2007 | CN101042132A Conjugate cylinder cam axle sliding sheet volume mechanism |
| 09/26/2007 | CN101042053A Hollow external rotation hydraulic motor |
| 09/26/2007 | CN100339565C Scroll-type expander having heating structure and scroll-type heat exchange system employing the expander |
| 09/25/2007 | US7273363 Scroll compressor with slider block having recess |
| 09/25/2007 | US7273360 Vane-type hydraulic motor |
| 09/20/2007 | WO2007106500A2 Low noise gear pump |
| 09/20/2007 | WO2007104255A1 Hydraulic pump |
| 09/20/2007 | DE102006012357A1 Positive-displacement pump, e.g. to act as a single-stroke vane-cell pump for a motor vehicle's servo steering device, has a casing with an outer ring fitted with a set of rotors |
| 09/20/2007 | DE102006011609A1 Vane-type rotary pump used a filter pump comprises a rotor fixed in the axial direction to a shaft for transferring a motor torque |
| 09/20/2007 | DE102006011200A1 Außenzahnradpumpe mit Entlastungstasche External gear pump with discharge bag |
| 09/19/2007 | EP1642004B1 Pump that is integrated into an internal combustion engine |
| 09/19/2007 | CN200949524Y Thin type fluid delivery mechanism |
| 09/18/2007 | US7270521 Variable capacity rotary compressor with pressure adjustment device |
| 09/18/2007 | US7270106 Free-planetary gear moderated nutating (athena) engine |
| 09/13/2007 | WO2007101457A1 Vane machine, in particular vane pump |
| 09/13/2007 | DE202006007501U1 Drehkolbenpumpe Rotary pump |
| 09/12/2007 | EP1832752A2 Variable displacement vane pump und method of controlling the same |
| 09/12/2007 | EP1832751A1 Kneading and displacing method and mechanism for fluid machinery and the use |
| 09/12/2007 | EP1832750A1 Outer gear pump with a pressure relief recess |
| 09/12/2007 | EP1831570A2 Pump, especially slurry pump |
| 09/12/2007 | EP1831569A2 Pump |
| 09/12/2007 | EP1685328B1 Double or multiple pump |
| 09/12/2007 | CN200946569Y Multiple axle multifunctional rotary piston pump |
| 09/12/2007 | CN200946568Y Partition plate type multiple axle rotary piston pump |
| 09/12/2007 | CN101035982A Lubrication system for compressor |
| 09/12/2007 | CN101033745A Variable capacity vane pump und method of controlling the same |
| 09/12/2007 | CN101033693A Gear-type pneumatic motor |
| 09/07/2007 | WO2007098849A1 Feed pump in a motor vehicle |
| 09/07/2007 | WO2007098595A1 Reduced rotor assembly diameter vane pump |
| 09/05/2007 | EP1828611A1 Vane pump |
| 09/05/2007 | EP1828610A1 Variable capacity vane pump with dual control chambers |
| 09/05/2007 | EP1828609A1 Vane cell pump |
| 09/05/2007 | EP1828608A2 Compact eccentric screw pump |
| 09/05/2007 | EP1828607A1 Variable capacity gerotor pump |
| 09/05/2007 | EP1727985B1 Modular volumetric compressor |
| 09/05/2007 | CN200943581Y Microcomputer automatic irrigation pump |