| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
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| 07/28/2010 | CN101787975A Totally enclosed type twin-screw helium circulator for reactor |
| 07/27/2010 | US7762798 Compressor having different hardness surface between upper surface and receiving surface of top dead center of compression member and vane |
| 07/22/2010 | WO2009149682A3 Motor-pump module |
| 07/22/2010 | US20100183454 Rotary displacement pump |
| 07/21/2010 | EP2208890A2 Rotation displacement pump |
| 07/21/2010 | EP2208889A1 Beverage apparatus |
| 07/21/2010 | CN201531419U Tripolar parallel-connected gear pump |
| 07/21/2010 | CN201531418U High-temperature wear-resisting double entry double-screw pump |
| 07/21/2010 | CN201531417U Rotor all-floating structure |
| 07/21/2010 | CN101782068A Vane pump |
| 07/20/2010 | US7757658 Nagata cycle rotary engine |
| 07/15/2010 | WO2010078892A2 Pump for delivering a fluid, particularly a metering pump |
| 07/15/2010 | WO2010078700A1 Hand-held cleaning machine |
| 07/15/2010 | WO2010017795A3 Pump unit |
| 07/15/2010 | US20100178191 Screw Pump and Screw Rotor |
| 07/15/2010 | US20100178190 Accurate Powder Metal Component, Assembly and Method |
| 07/15/2010 | DE102009015024B3 Stator for eccentric spiral pump, has cylindrical stator casing, lining provided in inner side of stator casing and multiple structural elements |
| 07/15/2010 | DE102009000155A1 Vane-type pump for use power steering pump for delivering hydraulic oil to consumer of steering system of passenger car, has rear vane channel divided into pressure regions, which define variable pressure on rear vane of vanes |
| 07/14/2010 | EP2206924A2 Cell pump with adjustable displacement with pivotable cam ring |
| 07/14/2010 | EP2206923A1 Internal gear pump rotor, and internal gear pump using the rotor |
| 07/14/2010 | EP2205872A2 Pump |
| 07/14/2010 | EP2205871A1 Internal gear pump for a braking system |
| 07/14/2010 | EP2205831A1 A rotary fluid-displacement assembly |
| 07/14/2010 | CN201526453U Built-in oil-throwing gear pump |
| 07/14/2010 | CN201526452U Underground annulus suction screw pump |
| 07/14/2010 | CN201526451U Novel double-screw pump provided with threaded sleeves with unequal pitches |
| 07/14/2010 | CN201526450U Gapless combined gear pump |
| 07/14/2010 | CN201526411U Large-torque hydraulic gear motor |
| 07/14/2010 | CN101778999A Screw compressor with integral bearing cover and discharge plenum divider |
| 07/13/2010 | US7753664 Rotary pump |
| 07/13/2010 | US7753663 Mounting structure of discharge valve in rotary compressor |
| 07/08/2010 | WO2010075834A2 Locking semirotary pump |
| 07/08/2010 | US20100172768 Oil Pump with Improved Structure |
| 07/08/2010 | DE102009015990A1 Vane cell pump, particularly fuel pump or lube oil pump, for supplying liquid medium in internal combustion engine of motor vehicle, has suction face, pressure side and recirculation line that is guided from pressure side |
| 07/07/2010 | EP2204583A2 Vane pump with rotating cam ring and increased under vane pressure |
| 07/07/2010 | EP2203624A2 Oil well pump apparatus |
| 07/07/2010 | CN201521442U Sand thickened oil gather and delivery pump unit |
| 07/07/2010 | CN201521441U Inner curve planetary gear pump |
| 07/07/2010 | CN201521440U Improved inward rotation type gear pump |
| 07/06/2010 | US7748969 Foam reduction device for a compressor |
| 07/06/2010 | US7748968 Two-cylinder rotary compressor with suction pipes |
| 07/06/2010 | CA2397164C Progressive cavity helical device |
| 07/01/2010 | WO2010074967A2 Centripetal pumping stage and vacuum pump incorporating such pumping stage |
| 07/01/2010 | WO2010072478A2 Internal gear pump |
| 07/01/2010 | WO2010072477A2 Toothed wheel arrangement |
| 07/01/2010 | WO2010072476A2 Pump unit |
| 07/01/2010 | US20100166590 Rotary fluid pressure device and improved parking lock assembly therefor |
| 07/01/2010 | DE10324092B4 Regelbare Schmierölpumpe mit einem Fördermengenregler Adjustable oil pump with a flow regulator |
| 07/01/2010 | DE102009056119A1 Messanordnung zur Verschleißbestimmung, insbesondere an einer Schneckenpumpe Measuring arrangement for determining wear, especially on a screw pump |
| 07/01/2010 | DE102008063983A1 Pumpe zum Fördern eines Fluids, insbesondere Dosierpumpe Pump for conveying a fluid, in particular metering pump |
| 07/01/2010 | DE102008063500A1 Hydraulische Maschine Hydraulic machine |
| 06/30/2010 | EP2202410A1 Gear pump |
| 06/30/2010 | EP2201250A1 Pump insert |
| 06/30/2010 | EP2201227A1 Scr system and method for the purging thereof |
| 06/30/2010 | CN201517501U Rotary rotor pump |
| 06/30/2010 | CN201517500U Drive shaft and inner rotor structure of rotor type fuel oil pump |
| 06/30/2010 | CN101765701A Vacuum pump for a motor vehicle engine |
| 06/30/2010 | CN101761473A Vehicle-mounted methane project special pump |
| 06/30/2010 | CA2689175A1 Positive displacement rotary components having main and gate rotors with axial flow inlets and outlets |
| 06/29/2010 | US7744357 Scroll compressor |
| 06/29/2010 | US7744356 Screw vacuum pump with male and female screw rotors having unequal leads |
| 06/24/2010 | WO2010070211A1 Device for pressurising a fluid, to be directly mounted on a power takeoff |
| 06/24/2010 | US20100158735 Hydraulic machine |
| 06/24/2010 | US20100158734 Internal gear pump |
| 06/24/2010 | US20100154402 Flow Rate Control Device of Hydraulic Pump in Power Steering System |
| 06/24/2010 | DE202010000122U1 Stator für eine Exzenterschneckenpumpe Stator for an eccentric |
| 06/24/2010 | DE202007019039U1 Vorrichtung zum Pumpen eines Mediums nach dem Orbitalverdrängerprinzip A device for pumping a medium after Orbitalverdrängerprinzip |
| 06/24/2010 | CA2740996A1 Device for pressurising a fluid, to be directly mounted on a power take-off |
| 06/23/2010 | EP2199612A2 Gear pump with unequal gear teeth on drive and driven gear |
| 06/23/2010 | EP2199611A2 Gear pump with slots in teeth to reduce cavitation |
| 06/23/2010 | EP2199059A2 Extruder assembly comprising a gear pump and method of operating such an arrangement |
| 06/23/2010 | EP2198126A1 Rotary internal combustion engine or pump |
| 06/23/2010 | CN201513340U Low-pressure large-flow liquid pump |
| 06/23/2010 | CN201513339U Rotating-cylinder hydraulic motor and pump employing same |
| 06/23/2010 | CN101749233A Novel vortex compressor and manufacturing method thereof |
| 06/23/2010 | CN101749228A Pump |
| 06/23/2010 | CN101749227A Novel vortex water pump and manufacturing method thereof |
| 06/23/2010 | CN101749112A Rotary reciprocating engine |
| 06/17/2010 | US20100150765 Interlocking Device for Holding Body and Flange of Machines Using Bean-Shaped Dowels |
| 06/17/2010 | US20100150764 Pump having modular shaft bearings and seals |
| 06/17/2010 | US20100150760 Rotary vacuum pump |
| 06/17/2010 | DE102008061327A1 Extruderanordnung Extruder arrangement |
| 06/17/2010 | DE102008054767A1 Conveying device, particularly gear wheel pump, has housing, with two housing units, where conveyor elements are formed as gear wheels and are inserted between two housing units |
| 06/17/2010 | DE102008054761A1 Zahnradanordnung Gear assembly |
| 06/17/2010 | DE102008054758A1 Förderaggregat Delivery unit |
| 06/17/2010 | DE102008054755A1 Conveying device, particularly gear wheel pump, has housing, where surfaces of housing units have mounting surfaces for mounting conveyor elements |
| 06/17/2010 | DE102008054753A1 Innenzahnradpumpe Internal gear pump |
| 06/17/2010 | DE102008054751A1 External gear pump for supplying of fuel in fuel-injection system of internal combustion engine, has two rotatable gear wheels which are engaged together, where bearing surface is arranged radially outward to gear wheel |
| 06/17/2010 | DE102008054474A1 Innenzahnradpumpe mit optimiertem Geräuschverhalten Internal gear pump with improved noise performance |
| 06/17/2010 | CA2688768A1 Pump having modular shaft bearings and seals |
| 06/16/2010 | CN201507445U Oscillating displacement pump |
| 06/16/2010 | CN201507444U Oil pump for double-clutch motorcycle engine |
| 06/16/2010 | CN201507443U Improved oil pump |
| 06/16/2010 | CN101737324A Delivery pump device |
| 06/16/2010 | CN101737323A Environmentally-friendly, energy-saving and emission-reducing power machine |
| 06/16/2010 | CN101737322A Design method of double-rotor internal-rotation constant pressure pump |
| 06/16/2010 | CN101737321A Method for designing internal-rotation constant pressure pump structured as external rotator |
| 06/16/2010 | CN101737320A Method for designing internal-rotation constant-pressure pump |
| 06/16/2010 | CN101737243A Hydraulic motor for star cycloid |
| 06/16/2010 | CN101273200B Vane pump |