Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
07/2002
07/11/2002US20020090312 Rotary pump apparatus
07/10/2002EP1171690A4 Vacuum pump oil distribution system with integral oil pump
07/10/2002EP0827484B1 Juice concentrate package for postmix dispenser
07/10/2002CN2499600Y Rotary-vane turbine
07/10/2002CN1357680A Conveyer for liquid, especially liquie fuel
07/10/2002CN1087409C Improved driving device
07/09/2002US6416303 Mechanically driven roller vane pump with aperture end parts providing for gradual pressure changes in the pump chambers
07/09/2002US6416299 Motorcycle oil pump
07/04/2002WO2002052155A1 Variable displacement pump
07/04/2002US20020085940 Geared feed pump for supplying fuel to a high pressure fuel pump
07/04/2002US20020085923 Variable displacement pump
07/04/2002US20020085920 Self aligning cartridge pump
07/04/2002US20020084029 Stator especially adapted for use in a helicoidal pump/motor and method of making same
07/03/2002EP1219841A1 Slide bearing,especially for a gear pump
07/03/2002EP1219835A2 Trochoid pump
07/03/2002EP1218640A1 High pressure cleaning device
07/02/2002US6413066 Mechanically driven roller vane pump with aperture end parts providing for gradual pressure changes in the pump chambers
07/02/2002US6413065 Modular downhole multiphase pump
07/02/2002US6413064 Pump
07/02/2002US6413063 Pump
07/02/2002US6412280 Fluid motor
07/02/2002CA2229056C Three stage self-regulating gerotor pump
06/2002
06/27/2002US20020081225 Hydraulic motor
06/27/2002US20020081210 Sliding vane pump
06/27/2002US20020078917 Oil pump unit for engine
06/26/2002CN1355380A Gear conveying pump, special conveying fuel to high pressure fuel actuator
06/25/2002US6408899 Apparatus for encrusting a filling material
06/25/2002CA2024847C Reduced sized hydraulic motor
06/20/2002WO2002027188A3 Vane pump
06/20/2002WO2002027187A3 Vane pump
06/20/2002US20020076345 Hydraulic pump
06/20/2002US20020076344 Variable displacement hydraulic gear pump
06/20/2002US20020076334 Vane pump wear sensor for predicted failure mode
06/20/2002DE10147128A1 Ölpumpenvorrichtung The oil pump apparatus
06/18/2002US6406279 Displacement type fluid machine
06/13/2002DE10059423A1 Vorrichtung zum Fördern von Flüssigkeiten, insbesondere Kraftstoff Device for conveying liquids, in particular fuel
06/12/2002EP1213481A1 Rotary pump with a variable flow rate, particularly for oil
06/12/2002EP1213480A2 Internal gear hydraulic machine
06/12/2002EP1212533A2 Rotary displacement machine with at least two displacement gearwheels with external teeth and a housing for such a machine
06/11/2002US6402488 Oil pump
06/11/2002US6402487 Control system for variable exhaust nozzle on gas turbine engines
06/06/2002WO2000079223A3 Dosing device adapted for dispensing a concentrate from a holder in a metered manner
06/06/2002US20020068002 Fluid displacement pump with backpressure stop
06/06/2002US20020068001 Rotary hydraulic vane pump with improved undervane porting
06/06/2002US20020068000 Pump with magnetic clutch
06/06/2002DE19549507C2 Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine eines Kraftfahrzeuges Means for feeding fuel from a storage tank to an internal combustion engine of a motor vehicle
06/06/2002DE10144641A1 Entspannungsventil Expansion valve
06/06/2002DE10114148C1 Self-centering gearwheel pump, especially for flowable pastes and fluids, includes driving gearwheel axially fitted non-positively on smooth drive shaft and with eccentric hollow wheel to compensate radial heat expansions
06/06/2002DE10059422A1 Vorrichtung zum Fördern von Flüssigkeiten, insbesondere Kraftstoff Device for conveying liquids, in particular fuel
06/06/2002DE10056976A1 Hydraulic machine has external gearwheel divided on inside into first and second section, whereby shaft connected to gearwheel fits in gearwheel in first section and valve assembly is located in second section
06/06/2002DE10056975A1 Hydraulische Maschine, insbesondere Pumpe Hydraulic press, in particular pump
06/06/2002DE10056973A1 Hydraulic machine has valve assembly with rotatable disc which lies on one end face of gearwheel and rotates at orbiting speed in relation to gear ring, and rotatable disc and gearwheel are directly interconnected by drive connection
06/05/2002EP1211421A2 Rotary hydraulic vane pump with hydraulic vane actuation
06/05/2002EP1211420A2 Variable capacity type pump
06/05/2002EP1211419A2 Device for pumping fluids, especially fuel
06/05/2002EP1211418A2 Device for pumping fluids, especially fuel
06/05/2002EP1210519A1 Gear pump with a drive and a hydraulic tank
06/05/2002EP1210505A1 Fluid rotary machine
06/04/2002US6398531 Pump drive system
06/04/2002US6398528 Dual lobe, split ring, variable roller vane pump
05/2002
05/30/2002US20020064471 Variable capacity type pump
05/30/2002US20020063354 Process and device for pressurizing flowable reaction components
05/29/2002EP1209360A1 Rotary pump apparatus
05/29/2002EP1209359A2 Gear pump
05/29/2002EP1208302A1 Dual lobe, split ring, variable roller vane pump
05/29/2002DE10059059A1 Internal gear wheel pump, especially for electrohydraulic braking systems, has seal between housing or cover and axial disc in form of axial seal with supporting ring
05/29/2002DE10058012A1 Zahnradförderpumpe, insbesondere zum Fördern von Kraftstoff zu einer Kraftstoffhochdruckpumpe Gear pump, in particular for delivering fuel to a fuel high-pressure pump
05/29/2002CN1351694A Toothed rotor set
05/29/2002CN1085790C Gear pump for use in electrically-operated sealed compressor
05/29/2002CN1085787C Internal toothed belt pump
05/28/2002US6394775 Hydraulic motor seal
05/28/2002US6394753 Flexible impeller removal and installation method
05/22/2002CN1085304C Progressive cavity pump using composite materials
05/21/2002US6390052 Wobble engine
05/16/2002WO2001086149A3 Fluid motor
05/16/2002US20020057978 Shaft having outer teeth for transferring torque between hydraulic machines arranged coaxially behind one another
05/16/2002US20020057976 Scroll fluid machine
05/14/2002US6386836 Dual gerotor pump for use with automatic transmission
05/09/2002US20020054822 Oil pump
05/09/2002US20020053829 Pump equipment and method for assembling same
05/08/2002EP1203885A2 Gear pump
05/08/2002DE10053991A1 Pump insert for vehicle brake system has pumps and drive element connected to motor with hydraulic fluid suction and pressure bores, arrangement sealing insert fluid-tight from unit housing
05/08/2002DE10052779A1 Füllstücklose Innenzahnradpumpe Füllstücklose internal gear pump
05/07/2002US6382942 Internal gear oil pump made of aluminum alloys
05/07/2002US6382925 Variable displacement pump
05/07/2002US6382924 Mechanically driven roller vane pump with enlarged surface area of the apertures
05/02/2002WO2002035097A1 Internal geared wheel pump without a filler piece
05/02/2002US20020051721 Vane pump
05/02/2002US20020051720 Gear pump
05/02/2002EP1200737A1 Reversible vane pump and motor
05/02/2002DE10051731A1 Screw pump esp. for low pressure operation consists partially of plastic with glass/carbon fiber reinforcement
04/2002
04/30/2002US6378206 Method of fabricating pin retaining ring for internal gear, internal meshing planetary gear structure, and hydraulic motor pump
04/30/2002CA2324674A1 Scissors pump
04/25/2002WO2002033238A1 Fluid power transfer device
04/25/2002WO2000009887A3 Pump
04/25/2002US20020048525 Axially compact gear pump
04/25/2002EP1144867A3 Pump
04/25/2002DE10132298A1 Rotary pump has a rotor with radial slots fitted with piston sliders and positioned eccentrically inside a pump housing
04/25/2002CA2426179A1 Fluid power transfer device
04/24/2002EP1199473A2 Scroll fluid machine