| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 06/21/2011 | US7963753 Scroll compressor bodies with scroll tip seals and extended thrust region |
| 06/21/2011 | CA2674711C Gear type performance oil pump |
| 06/21/2011 | CA2631001C Internal combustion engine |
| 06/16/2011 | WO2011069754A2 Eccentric screw pump |
| 06/16/2011 | WO2011069713A2 External gear pump |
| 06/16/2011 | WO2011069708A1 Pump arrangement |
| 06/16/2011 | WO2010115518A3 Grooved bearing sleeve for an externally toothed gear machine |
| 06/16/2011 | US20110142702 Rotary engine vane conduits apparatus and method of operation therefor |
| 06/16/2011 | DE10201490B4 Hydraulikdrucksteuergerät für ein Automatikgetriebe eines Fahrzeugs Hydraulic pressure control device for an automatic transmission of a vehicle |
| 06/16/2011 | DE102010053541A1 Hydraulic conveyer system for promoting hydraulic medium, has wings, which lies in promotion mode at outline, where wings are switched from promotion mode into rotating mode |
| 06/16/2011 | DE102009047717A1 Exzenterschneckenpumpe Cavity Pump |
| 06/16/2011 | DE102009047709A1 Geared pump i.e. fuel pump, of fuel system in common rail injection system of internal-combustion engine in motor vehicle, has drive element for transferring rotating movement of shaft to gear wheel and exhibiting polygonal profile |
| 06/15/2011 | EP2333343A2 Electric pump and electric pump mounting structure |
| 06/15/2011 | EP2333236A1 Pump rotor |
| 06/15/2011 | EP2145110B1 A painting apparatus |
| 06/15/2011 | EP1540174B1 Cam ring bearing for fuel delivery system |
| 06/15/2011 | CN201865911U Gear oil pump |
| 06/15/2011 | CN201865910U External gear pump with radial compensation floating slips |
| 06/15/2011 | CN201865909U Twin-screw liquid pump |
| 06/15/2011 | CN201865908U Gear pump without flow distribution and trapped oil |
| 06/15/2011 | CN102099581A Pump |
| 06/15/2011 | CN102094818A Stator of automobile power steering pump and method for designing stator curve |
| 06/15/2011 | CN102094816A Master and auxiliary pump |
| 06/15/2011 | CN102094815A Volumetric multifunctional constant-pressure pump |
| 06/15/2011 | CN102094814A Hydraulic power steering gear pump for vehicle for mine |
| 06/15/2011 | CN102094813A Gear pump with asymmetric combined curved surface tooth form |
| 06/15/2011 | CN102094812A Power takeoff gear pump |
| 06/15/2011 | CN102094811A Non-linear shovel surface secondary enveloping molded line single screw rod meshing pair |
| 06/15/2011 | CN102094810A Worm gear pump with worm wheel gear cavity as working space |
| 06/15/2011 | CN102090938A Combination vertical rotary vane suction pump and liquid separator |
| 06/14/2011 | US7959422 Oil pump and method of assembling the oil pump |
| 06/14/2011 | CA2612326C Progressing cavity pump assembly and method of operation |
| 06/14/2011 | CA2359546C Sanitary design gear pump |
| 06/09/2011 | DE102010060735A1 Elektrische Pumpe Electric Pump |
| 06/09/2011 | DE102009057351A1 Roots pump arrangement for supplying of liquid, two axially supported cylinders as operating cylinder and as control cylinder, where cylinders are tangentially arranged to each other |
| 06/09/2011 | DE102009047643A1 Internal gear pump e.g. hydraulic pump, for conveying brake fluid in hydraulic vehicle brake system, has filling piece including spring whose legs are processed in circumferential direction and act inwardly and outwardly opposite to heads |
| 06/09/2011 | DE102009047636A1 Double interior gear pump has two interior gear pumps, which have common pump shaft, pump housing and partition arranged between two interior gear pumps in pump housing |
| 06/09/2011 | DE102009047626A1 Gear pump for hydraulic vehicle brake assembly, has two combing gear wheels arranged on pump shaft in pivoted manner, where front ends of pump shaft are subjected with same pressure |
| 06/09/2011 | DE102009047610A1 Außenzahnradpumpe External gear pump |
| 06/08/2011 | CN201858147U Gear oil pump with anti-deviation positioning pin |
| 06/08/2011 | CN201858146U Gear oil pump with multiple external linkage ways |
| 06/08/2011 | CN201858145U Valve bank reversing type gear pump |
| 06/08/2011 | CN201858144U All-welded double-screw pump for underwater operation |
| 06/08/2011 | CN201857998U Liquid pump of screw expander |
| 06/08/2011 | CN201857997U Double-gear motor |
| 06/08/2011 | CN1759251B Sintered metal rotor of a rotary piston pump, sintered coupling element and manufacture method |
| 06/08/2011 | CN102089524A Compressor having capacity modulation system |
| 06/08/2011 | CN102089522A Pump unit |
| 06/07/2011 | USRE42416 Method of removing stators from tubular stator housings |
| 06/07/2011 | US7955063 Vane pump |
| 06/07/2011 | US7955062 Vane pump |
| 06/03/2011 | WO2011063870A2 Screw pump having an integrated pressure limiting valve |
| 06/03/2011 | WO2011063654A1 Vane pump |
| 06/02/2011 | CA2687649A1 Containment cup for a pumping assembly |
| 06/01/2011 | EP2327881A2 Adjustable wear-resistant rotary pump |
| 06/01/2011 | EP2326843A2 Device for branching off a fluidic partial flow |
| 06/01/2011 | DE102009056218A1 Schraubenspindelpumpe mit integriertem Druckbegrenzungsventil Screw Pump with integrated pressure relief valve |
| 06/01/2011 | DE102009056010A1 Flügelzellenpumpe Vane pump |
| 06/01/2011 | DE102009056008A1 Flügelzellenpumpe Vane pump |
| 06/01/2011 | DE102009055945A1 Flügelzellenpumpe Vane pump |
| 06/01/2011 | CN201851357U Energy-saving hydraulic gear pump |
| 06/01/2011 | CN201851356U Radial pressure balanced gear pump |
| 06/01/2011 | CN201851355U Universal transmission vertical type twin-screw cargo oil pump set |
| 06/01/2011 | CN201851354U Vertical three-screw pump |
| 06/01/2011 | CN201851353U High-temperature three-screw pump |
| 06/01/2011 | CN102080653A Fluid acceleration method and device |
| 06/01/2011 | CN102080652A Electric pump and electric pump mounting structure |
| 06/01/2011 | CN102079304A Structure for coupling rotary shafts and pump device of rotary type |
| 05/31/2011 | USRE42408 Oil pump and gears |
| 05/31/2011 | US7950913 Seal system and scroll type fluid machine |
| 05/31/2011 | US7950912 Scroll compressor having a gradually changing tip clearance |
| 05/31/2011 | US7950911 Single stage root type-vacuum pump and vacuum fluid transport system employing the single stage root type-vacuum pump |
| 05/26/2011 | WO2011062063A1 Helical gear pump |
| 05/25/2011 | EP2324246A1 Ring seals for screw pump rotors |
| 05/25/2011 | CN201843780U Reverse circular arc type external rotor of internal gear pump |
| 05/25/2011 | CN201843777U Screw stem pump |
| 05/25/2011 | CN102076961A Automatic volume ratio variation for a rotary screw compressor |
| 05/25/2011 | CN102072150A Vane pump |
| 05/25/2011 | CN102072149A Variable displacement pump |
| 05/25/2011 | CN102072148A Vane pump |
| 05/25/2011 | CN102072147A Rotary pump device and vehicle brake control system |
| 05/24/2011 | US7946833 Variable displacement vane pump |
| 05/19/2011 | WO2011058908A1 Rotor for pump and internal gear pump using same |
| 05/19/2011 | US20110116959 Stators for downwhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | CA2780865A1 Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | CA2780863A1 Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | CA2780260A1 Stator inserts, methods of fabricating the same, and downhole motors incorporating the same |
| 05/18/2011 | EP2322803A2 Pump with a magnetic coupling |
| 05/18/2011 | CN201836046U Automobile hydraulic power steering vane pump |
| 05/18/2011 | CN201836045U Novel double-screw glue solution pump |
| 05/18/2011 | CN201836044U Novel hydraulic gear pump |
| 05/18/2011 | CN201836043U Parallel connection type double-screw pump |
| 05/18/2011 | CN102066693A Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic-pneumatic machines |
| 05/18/2011 | CN102062088A Two-screw multiphase pump device suitable for working condition with high air void |
| 05/18/2011 | CN102062087A Double-screw pump provided with elastic lining layer |
| 05/18/2011 | CN102062086A Three-screw pump with elastic lining |
| 05/18/2011 | CN102062085A Control method and device for fluid acceleration |
| 05/17/2011 | US7942567 Extruder system with integrated gear pump |
| 05/12/2011 | WO2011056304A2 Pump system |
| 05/12/2011 | WO2011054085A1 High efficiency fluid pumping apparatus and method |