| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 02/18/2009 | CN101368562A Variable-capacity impeller pump |
| 02/18/2009 | CN100462562C Inner rotor and outer rotor of internal gear pump |
| 02/18/2009 | CN100462561C Oil pump rotor |
| 02/17/2009 | US7491045 Scroll compressor having a position adjustment device urging the stationary scroll towards the movable scroll by moving a seal formed between a support and the stationary scroll |
| 02/17/2009 | US7491042 Multistage compression type rotary compressor |
| 02/17/2009 | US7491041 Multistage roots-type vacuum pump |
| 02/12/2009 | WO2009019185A1 A working process for obtaining a pack clearance in pumps and hydraulic rotary volumetric motors |
| 02/12/2009 | WO2009019095A1 Vane pump with reduced contact pressure of the vanes |
| 02/12/2009 | WO2008129349A3 Rotary fluid pressure device with modular multi-speed control mechanism |
| 02/12/2009 | US20090041594 Variable displacement type gear pump |
| 02/12/2009 | US20090041593 Variable displacement type gear pump |
| 02/12/2009 | DE102008037152A1 Zahnradpumpe mit variabler Verdrängung Gear pump with variable displacement |
| 02/12/2009 | DE102007037666A1 Flügelzellenpumpe mit verringerter Flächenpressung der Flügel A vane pump with a reduced surface pressure of the wings |
| 02/12/2009 | DE102007037665A1 Vane pump comprises conveying chambers formed by a rotor, an outer peripheral surface of a guiding element arranged next to the rotor and wings |
| 02/12/2009 | DE102007037085A1 Verdrängerpumpe Displacement pump |
| 02/11/2009 | EP2022985A2 Valiable displacement type gear pump |
| 02/11/2009 | EP2021633A2 Vane machine |
| 02/11/2009 | EP1649142B1 Compressed air rotary engine |
| 02/11/2009 | CN201193615Y Double-channel stator for double-acting rotor pump |
| 02/11/2009 | CN201193609Y Gear pump |
| 02/11/2009 | CN201193608Y Screw pump for deviated and horizontal wells |
| 02/11/2009 | CN201193607Y Manual injection pump |
| 02/11/2009 | CN101365880A Method of generation of a surgeless flow of the working fluid and a device for its implementation |
| 02/11/2009 | CN100460681C Involute line screw tooth shape of large flow double screw pump |
| 02/11/2009 | CN100460680C Eccentric screw pump with integrated drive |
| 02/10/2009 | US7488163 Trochoid oil pump |
| 02/10/2009 | US7488162 Hydraulic pump for a power steering system |
| 02/10/2009 | US7488160 Motor-pump unit |
| 02/05/2009 | US20090035168 Scroll-type refrigerant compressor |
| 02/05/2009 | DE102007036608A1 Gearwheel pump with variable flow volumes has displacement arrangement in tooth gaps with variable displacement volumes connected to control chamber in base body |
| 02/04/2009 | CN201190738Y Straight-coupling type gear oil pump generator with coupler |
| 02/04/2009 | CN201190664Y Elastic gear pump |
| 02/04/2009 | CN101360899A Internal combustion engine |
| 02/03/2009 | US7484943 Screw pump with improved efficiency of drawing fluid |
| 01/29/2009 | WO2009014661A1 Articulated vane pump having multiple vanes to drive an outer rotor and provide an increased contact ratio |
| 01/29/2009 | WO2009014651A1 Articulated vane pump with conjugate action provided by a cam profile |
| 01/29/2009 | WO2009012921A1 Pump housing |
| 01/29/2009 | WO2009012877A1 Rotary cylinder rotary slide positive-displacement pump |
| 01/29/2009 | WO2009012872A1 Integrated internal gear pump with an electric motor |
| 01/29/2009 | WO2009012837A1 Method for producing a machine housing with a surface-hardened fluid chamber |
| 01/29/2009 | US20090028736 Orbit control device for a scroll compressor |
| 01/29/2009 | DE102007044040A1 Toothed wheel for a displacement machine, especially a rotary pump and/or a toothed gear pump, comprises a lubricating pocket (22) arranged in a running surface for receiving an operating fluid |
| 01/29/2009 | DE102007035239A1 Rotorpumpe Rotor pump |
| 01/28/2009 | EP2019207A1 Trochoid pump |
| 01/28/2009 | EP2018495A1 Lubricating device with lubricating pinion |
| 01/28/2009 | EP2018479A1 Gearwheel pump |
| 01/28/2009 | EP2018478A1 Stator casing for eccentric worm pumps |
| 01/28/2009 | EP2018369A2 Gerotor motor and brake assembly |
| 01/28/2009 | EP2018229A1 Coating device and associated operating method |
| 01/28/2009 | EP1934478B1 Vane cell pump |
| 01/28/2009 | CN201187489Y Horizontal built-in type hydraulic pump station |
| 01/28/2009 | CN201187446Y Static pressure balance type rotor piston pump |
| 01/28/2009 | CN201187445Y Engine oil pump of diesel |
| 01/27/2009 | US7481632 Scroll compressor with an oil passage plug to limit oil flow |
| 01/22/2009 | WO2009010844A1 Machine for fluid pumping |
| 01/22/2009 | WO2009010047A2 Spur gear-type recirculation pump |
| 01/22/2009 | DE202007012565U1 Hybridpumpe zum Fördern eines flüssigen Pumpmediums Hybrid pump for delivering a liquid pump medium |
| 01/22/2009 | DE102007034051A1 Drehzylinderdrehschieberverdrängerpumpe Drehzylinderdrehschieberverdrängerpumpe |
| 01/21/2009 | EP2016287A1 Rotary piston machine |
| 01/21/2009 | CN201184298Y Gear type slurry pump |
| 01/21/2009 | CN201184297Y Shielded electric pump |
| 01/21/2009 | CN101349267A Engine oil pump |
| 01/21/2009 | CN100453811C Oil pump |
| 01/20/2009 | US7479174 Inner and outer rotors made of a sintered copper alloy composed of 12 to 50 % by mass Ni, 5 to 20 % Sn, 0.5 to 5 % C, optionally Zn and/or C, and the balance Cu; corrosion resistance |
| 01/20/2009 | US7479001 Rotor sliding-vane machine with adaptive rotor |
| 01/20/2009 | US7479000 Gear pump |
| 01/15/2009 | WO2009008021A1 Rotational turbo-pump with elliptical gearing |
| 01/15/2009 | DE102007051779A1 External gear pump for lubricants has two or more gearwheels with transverse bores which feed lubricant to corresponding bore in slide bearing shell |
| 01/14/2009 | EP2014919A2 Adjustment valve for adjusting the supply volume of a pressure pump |
| 01/14/2009 | EP2012911A2 Method and apparatus for multi-stream metered extrusion |
| 01/14/2009 | CN201180647Y Two-body type heavy pressure gear oil pump |
| 01/14/2009 | CN201180646Y Ganged rotation capacity-variable mechanism of displacement type fluid machine |
| 01/14/2009 | CN201180645Y Regular circle type double-acting vane pump |
| 01/14/2009 | CN201180644Y 叶片泵 Vane pump |
| 01/14/2009 | CN201180643Y High-pressure gear pump with pressure compensation function |
| 01/14/2009 | CN101344067A Oil distribution disk and continuous slewing electro-hydraulic servo motor using the same |
| 01/14/2009 | CN100451339C Internally meshed oil hydraulic-pump rotor |
| 01/13/2009 | US7476093 Oil pump rotor assembly |
| 01/13/2009 | US7476092 Scroll compressor with tapered slider block |
| 01/08/2009 | WO2009004657A1 Vacuum pump for a motor vehicle engine |
| 01/08/2009 | WO2009003757A2 Gear pump arrangement |
| 01/07/2009 | EP2012014A1 Internal gear pump with non-equal teeth pitch spacings |
| 01/07/2009 | CN201176936Y Compressor |
| 01/07/2009 | CN201176931Y Differential high-pressure rotor pump |
| 01/07/2009 | CN201176930Y Gear ring pump |
| 01/07/2009 | CN101338747A Double oil path vane pump /motor |
| 01/07/2009 | CN101338746A Internal gear pump |
| 01/07/2009 | CN100449147C Gear pump with bidirectional compensator for axial sealing |
| 01/06/2009 | US7473083 Oil separating device for compressor |
| 01/06/2009 | US7473081 Hermetically sealed compressor and method of manufacturing the same |
| 12/31/2008 | EP1812713B1 Variable delivery vane pump, in particular for oil |
| 12/31/2008 | EP1797327B1 Rotary piston pump comprising a pump housing and two double-bladed rotary pistons |
| 12/31/2008 | CN101334024A High-pressure gear water pump |
| 12/31/2008 | CN100447430C Charge/auxiliary circuit for reducing power losses in hydrostatic systems |
| 12/31/2008 | CN100447419C Anti-wear rotor pump |
| 12/31/2008 | CN100447418C Internal gear pump and inner rotor of the pump |
| 12/30/2008 | CA2563111C Magnetically driven gear pump |
| 12/24/2008 | EP2005001A1 Vane pump |
| 12/24/2008 | DE102008028322A1 Veränderliche Pumpe Variable pump |
| 12/24/2008 | DE102007028675A1 Hydrostatic machine, particularly external gear pump or external gear motor, has two external gear wheels, which stays together in combing contact |