| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 03/12/2008 | CN101139988A Pin-hole type cycloid rotor pump |
| 03/12/2008 | CN100374728C Hydraulic pump apparatus |
| 03/12/2008 | CN100374725C Rotary blade pump |
| 03/12/2008 | CN100374724C Piezoelectric screw pump |
| 03/12/2008 | CN100374723C Fuel supply apparatus |
| 03/06/2008 | US20080056927 Pump |
| 03/06/2008 | US20080056925 Vane room unit and rotary compressor having the same |
| 03/06/2008 | DE102006016790B3 Zellenpumpe Cell pump |
| 03/05/2008 | EP1893872A1 Screw displacement pump |
| 03/05/2008 | CN201031795Y High flow rate high-pressure pump |
| 03/05/2008 | CN101137847A Vane pump |
| 03/05/2008 | CN101137846A Variable-delivery vane pump, in particular for oil |
| 03/05/2008 | CN101137845A Internal gear type pump with built-in motor and electronic device |
| 03/05/2008 | CN101135306A Mixed-transmission double screw pump |
| 03/04/2008 | US7338268 Discharge valve device of a compressor |
| 03/04/2008 | US7338267 Hinged paddle pump |
| 03/04/2008 | US7338266 Screw pump and method of operating the same |
| 02/28/2008 | WO2008023619A1 Three-throw gear pump |
| 02/27/2008 | EP1892418A2 Cog wheel machine |
| 02/27/2008 | EP1892417A2 Rotary lobe pump |
| 02/27/2008 | EP1892416A1 Highly reinforced elastomer for use in downhole stators |
| 02/27/2008 | EP1892415A1 Motor-integrated internal gear pump, method of producing the gear pump, and electronic apparatus |
| 02/27/2008 | CN201027647Y 输油泵 Pump |
| 02/27/2008 | CN201027646Y Sliding vane oil transfer pump used for high-pressure common rail system |
| 02/27/2008 | CN201027645Y Micro-pump |
| 02/27/2008 | CN201027644Y Hydraulic gear pump |
| 02/27/2008 | CN101133251A Rotor sliding-vane machine |
| 02/27/2008 | CN101133250A Gear pump |
| 02/27/2008 | CN101131156A Dual-shaft variable-velocity rotary pump |
| 02/27/2008 | CN100371597C Microminiature pump used for heat radiation of small-sized fuel battery |
| 02/26/2008 | US7335005 Gear pump with prestressed gear teeth |
| 02/25/2008 | CA2598813A1 Highly reinforced elastomer for use in downhole stators |
| 02/23/2008 | CA2596582A1 Progressive vortex pump |
| 02/21/2008 | WO2008019575A1 Rotary expanding or compressing mechanism provided in fluid channel with blades for traversing shaft |
| 02/21/2008 | DE102006038838A1 Suction-throttled vane pump for diesel internal combustion engine, has pressure kidney with center provided related to datum-axis that is right-angled to dividing line dividing suction region from pressure region |
| 02/20/2008 | EP1888943A1 Transmission with orbital gears |
| 02/20/2008 | EP1888920A1 Vacuum pump for vehicle motors and a one-way valve for said vacuum pump |
| 02/20/2008 | EP1888919A2 Gear machine for combining two fluid streams and associated method |
| 02/20/2008 | CN201025089Y Oil pump for middle cooling gasoline engine of 2.2L voltage increase |
| 02/20/2008 | CN201025074Y Hollow outside rotary hydraulic motor |
| 02/20/2008 | CN101128672A Gear pump and oil pump for automatic transmission using the same |
| 02/20/2008 | CN100370138C Double-action connectless sliding vane pump |
| 02/19/2008 | US7331775 Pumping device |
| 02/19/2008 | US7331774 Back pressure control mechanism of orbiting scroll in scroll compressor |
| 02/19/2008 | CA2359783C Variable capacity type pump |
| 02/14/2008 | WO2008017543A1 Internal gear pump |
| 02/14/2008 | WO2003102420A9 Gear pump |
| 02/14/2008 | US20080038138 Rotary lobe pump |
| 02/14/2008 | US20080038117 Pumping System Employing a Variable-Displacement Vane Pump |
| 02/14/2008 | DE202006014930U1 Hydraulische Vorrichtung Hydraulic device |
| 02/14/2008 | DE102006037177A1 Innenzahnradpumpe Internal gear pump |
| 02/14/2008 | DE102006036243A1 Förderschnecke für Exzenterschneckenpumpe Screw conveyor for Progressive Cavity Pump |
| 02/13/2008 | EP1454062B1 Feed pump for fluidic media |
| 02/13/2008 | EP1292773B1 Pump |
| 02/13/2008 | CN101124407A Pump rotors |
| 02/13/2008 | CN101124406A Device for controlling parasitic losses in a fluid pump |
| 02/13/2008 | CN101122289A Fuel supplying system |
| 02/13/2008 | CN101122288A Rotary lobe pump |
| 02/13/2008 | CN101122287A Screw feeder for a progressive cavity pump |
| 02/13/2008 | CN100368686C Inner gear pump |
| 02/12/2008 | US7330779 Method and system for improving pump efficiency and productivity under power disturbance conditions |
| 02/12/2008 | US7329109 Oil retention in scroll compressor pump members |
| 02/12/2008 | US7329108 Scroll fluid machine |
| 02/12/2008 | US7329106 Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle |
| 02/07/2008 | WO2008014688A1 A rotary piston compressor |
| 02/07/2008 | US20080031758 Feed Screw For Eccentric Screw Pump |
| 02/07/2008 | US20080031757 Spherical fluid machines |
| 02/07/2008 | US20080029461 Proportioning, Regenerative, Rotary Pump |
| 02/07/2008 | DE202006014416U1 Rotationskolben-Kraft- oder Arbeitsmaschine A rotary piston motor or machine |
| 02/07/2008 | DE102006036756A1 Sliding vane pump e.g. oil pump, speed increasing method for motor vehicle, involves supplying one of blades with fluid medium if idle rotor does not rests against inner surface of cam ring, if pump is started and/or if rotor starts running |
| 02/07/2008 | DE102006036439A1 Conveying unit e.g. roller vane pump, has pressure channel loading rear groove chamber with pressure at outlet during zero to five degree rotation of rotor from point of time at which working chamber is not connected with inlet |
| 02/06/2008 | EP1884660A1 Screw feeder for a progressive cavity pump |
| 02/06/2008 | EP1656502B1 Eccentric screw pump equipped with a rotor that is erosion-resistant |
| 02/06/2008 | CN201016339Y Liquid storage device of wiper self-priming pump |
| 02/06/2008 | CN201016338Y Oil pump |
| 02/06/2008 | CN101120173A Compact eccentric screw pump |
| 02/06/2008 | CN101120172A Crescent gear pump with novel rotor set |
| 02/06/2008 | CN101117957A End-face helical pump |
| 02/06/2008 | CN100366909C Variable capacity rotary compressor |
| 02/06/2008 | CN100366905C Efficient electromechanical rotor pump |
| 02/06/2008 | CN100366904C Motor-driven vane pump |
| 02/03/2008 | CA2595015A1 Feed screw for eccentric screw pump |
| 01/31/2008 | WO2008012060A1 Geared pump for feeding products with high solid content |
| 01/31/2008 | WO2007139438A3 Worm gerotor pump |
| 01/31/2008 | WO2007139437A3 Configuration of a worm gerotor pump |
| 01/31/2008 | WO2007128303B1 Rotary piston machine |
| 01/31/2008 | DE102006034758A1 Rotorpumpe Rotor pump |
| 01/31/2008 | DE102006034386A1 Gear pump for brake system of vehicle, has two gear wheels combined together to convey fluid from suction region to pressure region, and two arc-shaped contact units, which are arranged at outer circumference of gear wheels |
| 01/31/2008 | DE102006034141A1 Zahnradpumpe zur Förderung von Produkten mit hohem Feststoffanteil Gear pump for liquids with a high solids content |
| 01/31/2008 | DE102005033679B4 Ölpumpe Oil pump |
| 01/30/2008 | EP1882857A1 Rotary compressor |
| 01/30/2008 | EP1882855A2 Hydraulic motor |
| 01/30/2008 | EP1882081A2 Balancing plate-shuttle ball |
| 01/30/2008 | EP1025361B1 Pumping apparatus |
| 01/30/2008 | CN201013585Y Balance type cam wheel rotor pump |
| 01/30/2008 | CN201013584Y Cog-wheel pump special for belt edging regulating device |
| 01/30/2008 | CN101115909A A motor driven by pressure medium supplied from an external pressure source |
| 01/30/2008 | CN101113733A Engine oil pump of diesel engine |
| 01/30/2008 | CN101113732A Engine oil pump of diesel engine |
| 01/30/2008 | CN101113731A Engine oil pump suitable for SD type, LD type, S type and ZH type diesel engine |