Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
05/2006
05/24/2006EP1659289A2 Volumetric pumping unit for a hydraulic steering apparatus
05/24/2006EP1658437A1 Gear tooth and external gear pump
05/24/2006EP1495229B1 Internal gear pump with recesses on the gear bearing surfaces
05/24/2006EP1149244B1 Device for reducing the axial load of a pump which delivers fluid
05/24/2006DE4440782C5 Innenzahnradpumpe mit Verdrängervorsprüngen Internal gear pump with Verdrängervorsprüngen
05/24/2006DE10339765B4 Exzenterpumpe Eccentric pump
05/23/2006US7048526 Shared slot vane pump
05/23/2006US7048524 Internal gear pump with recesses on the gear bearing surfaces
05/18/2006WO2006051174A1 Combination helical rotor pump
05/18/2006US20060104847 Vane-type hydraulic motor
05/18/2006US20060104846 Scroll compressor
05/18/2006CA2585300A1 Combination helical rotor pump
05/17/2006EP1657442A2 Lubrication apparatus
05/17/2006EP1656502A1 Eccentric screw pump equipped with a rotor that is erosion-resistant
05/17/2006EP1463888B1 Device for pressure regulation of hydraulic pumps
05/17/2006CN2781034Y Oil pump of motorcycle
05/16/2006US7044289 Screw conveyor for the transport of flowable substances and/or lumps of material
05/16/2006US7044217 Stuffing box for progressing cavity pump drive
05/11/2006WO2006049500A1 Gear pump with variable capacity
05/11/2006WO2006048212A2 Pump, especially slurry pump
05/11/2006WO2006047998A1 Coating of displacer components (tooth components) for providing a displacer unit with chemical resistance and tribological protection against wear
05/11/2006WO2006047986A1 Pump comprising a coated rotor
05/11/2006US20060099100 Cam ring bearing for fuel delivery system
05/11/2006US20060099099 Vane pump including rotor having eccentric gravity center
05/11/2006US20060099098 Discharge valve system of scroll compressor
05/11/2006US20060099097 Apparatus for varying capacity of scroll compressor
05/11/2006US20060099096 Scroll pump system
05/11/2006CA2593673A1 Pump, in particular a slurry pump
05/10/2006EP1655491A2 Screw pump
05/10/2006EP1655490A1 Oil pump rotor
05/10/2006EP1654467A1 Eccentric worm pump
05/10/2006CN1769707A Gear pump
05/10/2006CN1255633C Rotary piston pump
05/09/2006US7040878 Eccentric screw-type pump
05/09/2006US7040875 Refrigerant pump with rotors in bearing
05/09/2006US7040870 Gear pump with gears having curved teeth and method of feeding elastomeric material
05/09/2006US7040392 Bearing assembly for a progressive cavity pump and system for liquid lower zone disposal
05/04/2006WO2005119065A3 Adjustable displacement pump
05/04/2006US20060093506 Scroll compressor
05/04/2006US20060093505 Positioning structure and method for assembling compressor
05/04/2006US20060093504 Apparatus for varying capacity of scroll compressor
05/04/2006US20060093503 Variable capacity rotary compressor
05/04/2006DE102005051612A1 Rotationspumpe für eine Bremsvorrichtung Rotary pump for a braking device
05/04/2006DE102004052928A1 Pumpe, insbesondere Dickstoffpumpe Pump, particularly slurry pump
05/04/2006DE102004052558A1 Zahnradpumpe Gear pump
05/04/2006DE102004051561A1 Flügelzellenpumpe Vane pump
05/03/2006EP1653082A1 Vane pump for continuously variable transmission
05/03/2006EP1653081A1 Oil pump
05/03/2006EP1144868B9 Hydraulic machine comprising dual gerotors
05/03/2006EP1133640B1 Rotary pump
05/03/2006CN2777449Y Working condition converting and controlling device for double screw rod compressor-decompressor
05/03/2006CN2777244Y High efficiency rotor pump
05/03/2006CN1768204A Gear pump and liquid injection apparatus
05/03/2006CN1766337A Variable output gerotor pump
05/03/2006CN1254603C Lubricant pump for internal combustion engine
05/02/2006US7037093 Dividing device
05/02/2006US7036892 Electric powered pump
05/02/2006CA2368393C Rotary pump
04/2006
04/27/2006US20060088434 Compressor
04/27/2006US20060088433 Vane pump for continuously variable transmission
04/27/2006US20060088431 Variable output gerotor pump
04/26/2006EP1650403A1 Progressive cavity pump unit
04/26/2006EP1649142A1 Compressed air rotary engine
04/26/2006CN1764785A Vane pump
04/26/2006CN1764784A Vane pump
04/26/2006CN1764783A Vane pump
04/26/2006CN1764769A Gerotor mechanism for a screw hydraulic machine
04/20/2006WO2005093258A3 Hydraulic motor or pump of annular gear construction
04/20/2006US20060083650 Air compressor assembly
04/20/2006US20060083649 Compressor
04/20/2006US20060083648 Scroll compressor
04/20/2006DE4415663B4 Flügelzellenpumpe Vane pump
04/20/2006DE102005047821A1 Drehschieberpumpe Rotary vane pump
04/19/2006EP1647713A2 Fluid pumping apparatus with Helmholtz-resonator
04/19/2006CN2773352Y Rotor-type plunger pump
04/19/2006CN2773351Y Local hydraulic compensated gear pump
04/19/2006CN2773348Y Pitch-variable spiral pump
04/19/2006CN2773313Y Rotor style liquid mechanical device
04/18/2006US7029246 Rotor shaft bearing design and coupling mechanism
04/18/2006US7029231 Liquid seal pump of the helical screw type
04/13/2006WO2006011808A3 A motor driven by pressure medium supplied from an external pressure source
04/13/2006WO2005119066A3 Gear for use in a gear pump
04/13/2006US20060078453 Mechanism of the screw rotor
04/13/2006US20060078452 Oil discharge reducing device for scroll compressor
04/13/2006US20060078451 Scroll compressor
04/13/2006US20060078450 Scroll pump with controlled axial thermal expansion
04/13/2006DE4437377B4 Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine Unit for feeding fuel from a storage tank to an internal combustion engine
04/13/2006DE19681665B4 Flügelzellenpumpe Vane pump
04/13/2006DE102005048018A1 Ölpumpe Oil pump
04/12/2006EP1645718A2 Device for preparing a fluid, in particular a drilling fluid, method of preparation and associated system for analysis
04/12/2006EP1644641A1 Gear pump having optimal axial play
04/12/2006CN2771520Y Bottom bearing block and lean oil pump device for helicoidal pump
04/12/2006CN2771519Y Eccentric sliding-vane pump
04/12/2006CN2771518Y Gear type high-pressure atomizing pump
04/12/2006CN2770976Y Pump and inkjet printer
04/12/2006CN1759251A Sintered metal rotor of a rotary piston pump
04/11/2006US7026001 Method of concentrating processed vegetable and fruit products by reverse osmosis
04/06/2006US20060073060 Oil pump
04/06/2006US20060073059 Poly-inductive machines and differential turbines
04/06/2006US20060073058 Orbiting vane compressor with side-inlet structure
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