| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 04/21/2005 | US20050084366 Suction housing for rotor/stator pump |
| 04/21/2005 | US20050081366 Miniature precision bearings for minisystems or microsystems and method for assembling such systems |
| 04/21/2005 | DE10257859B4 Schraubenspindelpumpe Screw Pump |
| 04/20/2005 | EP1523624A1 Discharge porting design for screw compressor |
| 04/20/2005 | EP1523623A1 Non-proportional flow control valve for a vane pump |
| 04/20/2005 | CN1607331A 全运动式压缩机 Full motion compressor |
| 04/19/2005 | US6881045 Progressive cavity pump/motor |
| 04/14/2005 | WO2004113727B1 Progressive cavity pump/motor |
| 04/14/2005 | US20050079083 Progressive cavity pump/motor stator, and apparatus and method to manufacture same by electrochemical machining |
| 04/14/2005 | DE19827932B4 Hydraulikpumpe Hydraulic pump |
| 04/14/2005 | DE19827924B4 Hydraulikpumpe Hydraulic pump |
| 04/14/2005 | DE10343549A1 Positive-displacement pump with pressure relief valve has casing with fluid chamber |
| 04/13/2005 | EP1522732A2 Variable displacement vane pump with variable target regulator |
| 04/13/2005 | EP1522730A1 Gear pump with integrated control valve |
| 04/13/2005 | EP1522729A1 Progressive cavity pump and stator for such a pump |
| 04/13/2005 | EP1522366A1 Progressive cavity pump / motor stator, and apparatus and method to manufacture same by electrochemical machining |
| 04/13/2005 | EP1019116B1 A rotary pump with hydrodynamically suspended impeller |
| 04/13/2005 | CN2692380Y Three blade pump mechanical sealing device |
| 04/13/2005 | CN2692378Y Large flow machine oil pump used on motorcar engine |
| 04/13/2005 | CN1605757A Microminiature pump used for heat radiation of small-sized fuel battery |
| 04/12/2005 | US6877969 Vane pump |
| 04/12/2005 | US6877967 Eccentric single-rotor screw pump |
| 04/12/2005 | US6877966 Apparatus for indicating remaining life expectancy of a rotary sliding vane pump |
| 04/12/2005 | US6877961 Vane pump with a bypass valve and passage arrangement for equalizing excess fluid flow through dual suction passages |
| 04/07/2005 | DE10341841A1 Nach dem Gerotorprinzip arbeitende Kraftstoffpumpe After working gerotor fuel pump |
| 04/07/2005 | DE10339765A1 Exzenterpumpe und Verwendung der Exzenterpumpe Eccentric pump and use of the eccentric |
| 04/06/2005 | CN2690628Y Equal wall thickness screw pump stator |
| 04/06/2005 | CN2690627Y Mechanical seal device for gear oil pump shaft head |
| 04/06/2005 | CN2690626Y High pressure gear pump |
| 04/06/2005 | CN2690560Y Pumping rod special for driving screw pump |
| 04/06/2005 | CN1603622A High temperature screw pump |
| 04/05/2005 | CA2332192C Oil pump |
| 03/31/2005 | US20050069447 Variable volume flow internal gear pump |
| 03/30/2005 | EP1519044A1 Rotary piston type pump, in particular for pumping particle loaded fluids |
| 03/30/2005 | EP1454063B1 Feed pump |
| 03/30/2005 | EP1053400B1 Hydraulic motor with lubrication path |
| 03/30/2005 | CN2688931Y Pin axial high-pressure gearing pumps |
| 03/30/2005 | CN1601108A Rotary blade vacuum pump |
| 03/29/2005 | US6872064 Increased capacity valving plates for a hydraulic motor |
| 03/29/2005 | US6872061 Method for making a moineau stator and resulting stator |
| 03/24/2005 | WO2005026553A1 Pumping system employing a variable-displacement vane pump |
| 03/24/2005 | WO2005026552A1 Inner gear-wheel pump comprising reinforced channels |
| 03/24/2005 | WO2005026500A1 Rotary and pivoting vane pump |
| 03/24/2005 | WO2005005835B1 Internal gear pump and inner rotor of the pump |
| 03/24/2005 | US20050063854 Dual lobe, split ring, variable roller vane pump |
| 03/24/2005 | US20050063851 Gerotor pumps and methods of manufacture therefor |
| 03/24/2005 | DE10337360A1 Device for controlling a liquid flow onto the pressure side of a volumetric pump, e.g. sliding vane pump, comprises a compression spring which has a progressive spring characteristic |
| 03/23/2005 | EP1517040A2 Multiple tank fluid pumping system using a single pump |
| 03/23/2005 | EP1516105A1 Internal gear machine with variable capacity |
| 03/23/2005 | EP1515883A1 Motor/pump unit, especially for antislip brake systems |
| 03/23/2005 | CN1598335A Connection structure between a plastic gear and a support shaft |
| 03/23/2005 | CN1598320A Positive displacement compressing pump |
| 03/23/2005 | CN1598315A Galactic moving type paste transfering pump |
| 03/23/2005 | CN1598314A Hydraulic gear pump |
| 03/23/2005 | CN1598313A High shearing strengthening pump special for water coal paste |
| 03/23/2005 | CN1194175C Plastic gear for gear pump |
| 03/22/2005 | CA2349007C Pump |
| 03/17/2005 | WO2005024238A1 Inlet hopper construction for a twin-screw pump |
| 03/17/2005 | US20050058566 Gear motor start up control |
| 03/17/2005 | US20050058557 Multiple tank fluid pumping system using a single pump |
| 03/17/2005 | US20050058553 Connection structure between a plastic gear and a support shaft, oil pump including the connection structure, and engine incorporating same |
| 03/17/2005 | DE10338632A1 Exzenterschneckenpumpe mit erosionsfestem Rotor Pump with erosion-resistant rotor |
| 03/17/2005 | DE10337865A1 Method of controlling liquid flow to the pressure side of a volumetric pump, especially sliding vane pump, involves throttling or deflecting liquid flow in region of the outlet regulating valve about an adjustable value |
| 03/17/2005 | DE10337382A1 Device for pressing a rotor in or out of a stator of eccentric spiral pump, comprises hydrocylinder which is connected to stator frame and which can be acted upon by hydraulic fluid via motor-driven hydraulic unit |
| 03/17/2005 | DE10239558B4 Außenzahnradpumpe mit Druckfluidvorladung External gear pump with pressure fluid summons |
| 03/16/2005 | EP1515045A2 Gear motor with start up control |
| 03/16/2005 | CN2685610Y Internal spill type vehicle dynamic steering pump |
| 03/16/2005 | CN1596343A Auto suction hybrid pump |
| 03/16/2005 | CN1594839A Rotary-piston machinery |
| 03/10/2005 | WO2005021973A1 Eccentric pump, and use thereof |
| 03/10/2005 | WO2005021972A1 Gear tooth and external gear pump |
| 03/10/2005 | WO2005021971A1 Eccentric screw pump equipped with a rotor that is erosion-resistant |
| 03/10/2005 | WO2005021969A2 Oil pump rotor |
| 03/10/2005 | WO2004113727A3 Progressive cavity pump/motor |
| 03/10/2005 | US20050053509 Hinged-vane rotary pump |
| 03/09/2005 | EP1421282A4 Fluid displacement pump with backpressure stop |
| 03/09/2005 | CN2683899Y Oil pump of compressor |
| 03/09/2005 | CN2683898Y 增速型油泵 Growth-type oil pump |
| 03/09/2005 | CN1590768A Eccentric biplanetary driving rotor centrifugal pump |
| 03/08/2005 | US6863504 Fluid pump relief valve |
| 03/03/2005 | WO2005019650A1 Volume flowrate-variable rotor pump |
| 03/03/2005 | US20050047939 Trochoidal oil pump |
| 03/03/2005 | US20050047938 Variable displacement pump with a suction area groove for pushing out rotor vanes |
| 03/03/2005 | US20050047937 Vane pump and fuel vapor leakage check module having the same |
| 03/03/2005 | US20050047930 System for controlling a hydraulic variable-displacement pump |
| 03/03/2005 | DE10297466T5 Flügelzellenpumpe mit einem druckkompensierenden Ventil Vane pump with a pressure compensating valve |
| 03/02/2005 | EP1509699A1 Multi-chamber positive displacement fluid device |
| 03/02/2005 | EP1509698A1 Variable volume flow internal gear pump |
| 03/02/2005 | CN1587710A Internal heat exchanging vortex mechanism |
| 03/01/2005 | US6861777 Motor pump with balanced motor rotor |
| 03/01/2005 | CA2377631C Pc pump inlet backwash method and apparatus |
| 02/24/2005 | US20050042126 Vane type rotary machine |
| 02/24/2005 | US20050042124 Small size gear pump |
| 02/24/2005 | DE10334954A1 Hydropumpe Hydraulic pump |
| 02/24/2005 | DE10333190A1 Aggregat zum Fördern von Kraftstoff zu einer Brennkraftmaschine Unit for feeding fuel to an internal combustion engine |
| 02/24/2005 | DE102004033609A1 Variable Verdrängerpumpe Variable displacement pump |
| 02/24/2005 | DE10190888T5 Hydraulischer Druckwandler Hydraulic pressure transducer |
| 02/23/2005 | EP1508698A1 Gear pump with sealing gap prolongating surfaces |
| 02/23/2005 | EP1508697A1 Gear pump with continuous shaft surfaces |
| 02/23/2005 | CN1584335A Double-rotor displacement pump |