| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 05/01/2013 | EP2585719A2 Continuously variable volume hydrostatic rotary piston machine |
| 05/01/2013 | CN202914311U Replaceable rotor wear-resisting head structure of rotor pump |
| 05/01/2013 | CN202914308U Isostatic-pressing fully-suspending shaft sleeve |
| 05/01/2013 | CN202914305U Oil-gas multiphase mixing transmission pump |
| 05/01/2013 | CN202914304U Novel single-screw oil extracting pump |
| 05/01/2013 | CN103075339A Vane cell machine |
| 05/01/2013 | CN103075338A Vane cell machine |
| 05/01/2013 | CN103075337A Hydraulic oil pump for walking rice transplanter |
| 05/01/2013 | CN103075336A Self-thrust single-screw pump system |
| 05/01/2013 | CN102207085B Rotor-type internal-compression oil-gas mixed transport pump unit |
| 05/01/2013 | CN102090938B Combination vertical rotary vane suction pump and liquid separator |
| 05/01/2013 | CN101896723B Liquid pump |
| 04/30/2013 | CA2552498C Dual arc vane pump |
| 04/25/2013 | WO2013058225A1 Remote monitoring system of uniaxial eccentric screw pump |
| 04/25/2013 | WO2013058223A1 Internal gear pump |
| 04/25/2013 | WO2013058078A1 Vane pump |
| 04/25/2013 | WO2013057752A1 Vane-type hydraulic device |
| 04/25/2013 | WO2013032616A3 Downhole motors and pumps with improved stators and methods of making and using same |
| 04/25/2013 | WO2013032367A3 Rotary vane machine |
| 04/25/2013 | WO2013013860A3 Brake system for a vehicle and method for operating a brake system of a vehicle |
| 04/25/2013 | WO2013012488A3 Downhole motors with a lubricating unit for lubricating the stator and rotor |
| 04/25/2013 | WO2012034985A3 Rotary piston pump and rotary piston |
| 04/25/2013 | WO2012011971A3 Lube pump retention method |
| 04/25/2013 | WO2012000812A3 Gear pump |
| 04/25/2013 | DE102012219444A1 Drehmaschine und pumpenantriebsgerät Lathe and pump drive unit |
| 04/25/2013 | DE102011116869A1 Flügelzellenmaschine Vane machine |
| 04/25/2013 | DE102011116858A1 Flügelzellenmaschine Vane machine |
| 04/24/2013 | EP2584141A1 Adjustable vane pump |
| 04/24/2013 | EP2582982A2 Stator for progressive cavity pump/motor |
| 04/24/2013 | EP2582981A2 Fluidic gear machine with flow rate regulation |
| 04/24/2013 | CN202900650U Oil distribution disc and cycloid pump using same |
| 04/24/2013 | CN202900649U Stator of screw pump |
| 04/24/2013 | CN202900644U Segmental shaft-type vane pump |
| 04/24/2013 | CN202900643U 压力反馈式节能转向泵 Energy-saving steering pump pressure feedback |
| 04/24/2013 | CN202900642U Ultrafiltration high-pressure pump |
| 04/24/2013 | CN202900641U Rotary drum-type rotary piston pump |
| 04/24/2013 | CN202900640U Volume cyclic increasing-decreasing device for each single closed cavity of three-rotor vane pump or three-rotor vane motor |
| 04/24/2013 | CN202900639U Gear pump for hydraulic retarder |
| 04/24/2013 | CN202900638U Gear pump with improved structure |
| 04/24/2013 | CN202900637U Flange type three-screw pump |
| 04/24/2013 | CN202900636U Gear metering pump |
| 04/24/2013 | CN202900635U Four-tooth cycloid pump and cycloid pump rotor structure thereof |
| 04/24/2013 | CN202900634U Six-tooth cycloid pump and cycloid pump rotor structure thereof |
| 04/24/2013 | CN202900633U Eight-tooth cycloid pump and cycloid pump rotor structure thereof |
| 04/24/2013 | CN202900221U Thickened oil steam huff and puff injection-extraction integrated device |
| 04/24/2013 | CN103062047A 沥青齿轮泵 Asphalt gear pump |
| 04/24/2013 | CN103062046A Twisted-type rotor pump |
| 04/24/2013 | CN103062045A Single-screw pump |
| 04/24/2013 | CN103062044A Rotary machine and pump driving apparatus |
| 04/24/2013 | CN103061822A Star-rotation type rotary device adopting gate valve structure |
| 04/24/2013 | CN102182683B Variable-displacement translational through vane compressor |
| 04/24/2013 | CN102141035B High-pressure gear pump with intermediate-pressure bearing lubrication |
| 04/24/2013 | CN101852124B Precession rotary engine |
| 04/24/2013 | CN101675247B Gear pump |
| 04/23/2013 | US8425211 Positive displacement machine according to the spiral principle |
| 04/23/2013 | US8425204 Pump |
| 04/23/2013 | CA2711195C Progressive cavity apparatus with transducer and methods of forming and use |
| 04/18/2013 | WO2013053062A1 Belt and support for a rotor mechanism in a rotary apparatus and rotary apparatus comprising same |
| 04/18/2013 | WO2012048940A3 Gear pump for delivering a fluid |
| 04/18/2013 | WO2011120512A3 Method for removing an eccentric worm gear drive of a crude oil delivery pump and crude oil delivery pump |
| 04/18/2013 | DE102011115993A1 Hydrostatic internal-gear machine used as internal gear pump, has high-pressure working chamber that is provided between ring gear and pinion and sealed against low-pressure working chamber |
| 04/18/2013 | CA2851716A1 Belt and support for a rotor mechanism in a rotary apparatus and rotary apparatus comprising same |
| 04/17/2013 | EP2581552A1 Spiraster-type fluid motor or engine and compressor or pump |
| 04/17/2013 | EP2580477A2 Rotary vane pump |
| 04/17/2013 | CN202883376U High-pressure vane pump with filter screen |
| 04/17/2013 | CN202883375U Special reverse osmosis pump |
| 04/17/2013 | CN202883372U Novel ultrafiltration vane pump |
| 04/17/2013 | CN202883371U Ultrafiltration high-pressure vane pump |
| 04/17/2013 | CN202883370U Flanged high-pressure pump |
| 04/17/2013 | CN202883369U Flanged stainless-steel three-jaw high-pressure pump |
| 04/17/2013 | CN202883368U Flanged high-pressure pump |
| 04/17/2013 | CN202883367U Flanged high-pressure vane pump |
| 04/17/2013 | CN202883366U High-pressure pump |
| 04/17/2013 | CN202883365U Small-flow water pump |
| 04/17/2013 | CN202883364U High pressure rotary vane pump |
| 04/17/2013 | CN202883363U Novel high pressure pump |
| 04/17/2013 | CN202883362U Vane pump |
| 04/17/2013 | CN202883361U Two-way three-gear intermediate shaft gear pump for robot |
| 04/17/2013 | CN202883360U Corrosion-resistant gear wheel metering pump |
| 04/17/2013 | CN202883359U Rotor pump |
| 04/17/2013 | CN103047130A Novel steering oil pump |
| 04/16/2013 | US8419399 Roots type gear compressor with helical lobes having communication with discharge port |
| 04/16/2013 | US8419398 Method and apparatus for managing fluid flow within a screw pump system |
| 04/16/2013 | US8419397 Screw compressor |
| 04/16/2013 | US8419395 Compressor and refrigeration apparatus |
| 04/16/2013 | US8419394 Hermetic compressor including a backflow preventing portion and refrigeration cycle device having the same |
| 04/16/2013 | US8419393 Compressor having bearing assembly |
| 04/16/2013 | US8419392 Variable displacement vane pump |
| 04/16/2013 | CA2673720C Electroformed stator tube for a progressing cavity apparatus |
| 04/11/2013 | WO2013051448A1 Vane pump |
| 04/11/2013 | WO2013049929A1 Pre-compression dual spring pump control |
| 04/11/2013 | WO2013013859A3 Brake system for a vehicle and method for operating a brake system of a vehicle |
| 04/11/2013 | WO2012022595A3 Vane pump |
| 04/11/2013 | WO2011128165A3 Electric delivery pump and method for operating an electric delivery pump |
| 04/11/2013 | US20130089456 Cartridge Style Binary Vane Pump |
| 04/11/2013 | US20130089454 Component having reduced metal adhesion |
| 04/11/2013 | US20130089453 Vehicular internal gear type oil pump |
| 04/11/2013 | US20130089452 Gerotor pump |
| 04/11/2013 | US20130089446 Variable Capacity Vane Pump with Dual Control Chambers |
| 04/11/2013 | US20130089437 Micro-sized fluid metering pump |