| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 10/15/2009 | WO2009125308A2 Rotary hydraulic machine |
| 10/15/2009 | US20090257899 Variable displacement vane pump |
| 10/14/2009 | EP2108840A2 Power steering pump having intake channels with enhanced flow characteristics and/or a pressure balancing fluid communication channel |
| 10/14/2009 | EP2108839A2 Power steering pump having intake channels with enhanced flow characteristics and/or a pressure balancing fluid communication channel |
| 10/14/2009 | CN201326542Y Star type duplicate gear pump |
| 10/14/2009 | CN101558218A System for sealing the piston of rotary piston machines |
| 10/14/2009 | CN101555879A Pump |
| 10/14/2009 | CN101555878A Power steering pump having intake channels with enhanced flow characteristics and/or a pressure balancing fluid communication channel |
| 10/13/2009 | US7600501 Method for increasing the effect to be produced in a motor, pump or the like |
| 10/13/2009 | CA2558201C A three gear type gear pump of a fuel supply system |
| 10/08/2009 | WO2009121471A1 Pump, particularly vane pump |
| 10/08/2009 | WO2009121470A1 Pump, particularly vane pump |
| 10/08/2009 | WO2009121250A1 A positive-displacement mechanism for a rotary fluid machine |
| 10/08/2009 | WO2009082165A3 Small multipurpose a watering cart |
| 10/08/2009 | US20090252633 Lobe pump system and method of manufacture |
| 10/08/2009 | US20090252630 Single-Shaft Eccentric Screw Pump |
| 10/08/2009 | CA2757899A1 Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic-pneumatic machines |
| 10/07/2009 | CN201321977Y Cold heading pump body |
| 10/07/2009 | CN101550930A Input shaft driven hybrid transmission pump |
| 10/06/2009 | US7597548 Dual arc vane pump |
| 10/06/2009 | US7597547 Variable capacity rotary compressor |
| 10/06/2009 | CA2543772C Method for delivering multi-phase mixtures and pump installation |
| 10/01/2009 | DE202009009511U1 Vorrichtung zum Transport von Fluidmedien Device for the transport of fluid media, |
| 09/30/2009 | CN201318281Y Pump |
| 09/30/2009 | CN201318280Y Vane type automobile steering pump |
| 09/30/2009 | CN201318279Y Rotor pump |
| 09/30/2009 | CN201318278Y Gear pump positioning device |
| 09/30/2009 | CN201318277Y Urinal filth screw pump |
| 09/30/2009 | CN101545482A Gear type oil transfer pump |
| 09/30/2009 | CN100545453C Rotor machine |
| 09/30/2009 | CN100545452C Internal gear pump |
| 09/24/2009 | WO2009116101A1 Integral motor- pump assembly |
| 09/24/2009 | WO2009115819A1 Stator for use in helicoidal motor |
| 09/24/2009 | WO2009115355A2 Fuel pump |
| 09/24/2009 | US20090238709 Magnetic vane ejection for a rotary vane air motor |
| 09/24/2009 | US20090238708 Rotary pump |
| 09/24/2009 | US20090238707 Vane pump |
| 09/24/2009 | US20090238706 Self-Aligning Pump Rotor and Methods |
| 09/24/2009 | DE102008000733A1 Housing for fluid pump i.e. gear wheel pump, for delivering fuel, has bearing sleeve for receiving gear wheel or rotor, and connected with housing in single piece, where housing is casting component, and manufactured from material |
| 09/24/2009 | CA2755500A1 Stator for use in helicoidal motor |
| 09/23/2009 | EP1880109B1 Rotor sliding-vane machine |
| 09/23/2009 | CN101539139A Double steel back lining lubricating pump |
| 09/23/2009 | CN100543308C Lubricating-free screw compressor |
| 09/23/2009 | CN100543306C Installation mechanism for scroll compressor non-revolution whirlpool piece and installation method thereof |
| 09/22/2009 | US7591640 Three gear type gear pump of a fuel supply system |
| 09/22/2009 | US7591637 G-rotor pump |
| 09/22/2009 | CA2535687C Progressing cavity stator including at least one cast longitudinal section |
| 09/17/2009 | WO2009113804A2 Fluid pump |
| 09/17/2009 | WO2009112789A1 Pump control system |
| 09/17/2009 | US20090232690 Seal apparatus of gear pump |
| 09/17/2009 | DE102008013335A1 Vane cell machine for use as e.g. vane cell pump to convey liquid into common pipe line, has hollow rotor with rotor slots for vane, and outer chambers and inner chambers provided with inlets and outlets |
| 09/16/2009 | EP2100009A1 System for sealing the piston of rotary piston machines |
| 09/16/2009 | CN201310462Y Translational motion piston type rotary compressor |
| 09/16/2009 | CN101532490A Ball bearing screw pump |
| 09/15/2009 | US7588433 Vane pump |
| 09/15/2009 | US7588432 Pump and inkjet printer |
| 09/15/2009 | US7588431 Variable capacity pump/motor |
| 09/15/2009 | US7588429 Oil pump rotor assembly |
| 09/15/2009 | US7588428 Rotary fluid device performing compression and expansion of fluid within a common cylinder |
| 09/15/2009 | US7588427 Variable capacity rotary compressor |
| 09/15/2009 | CA2372883C Toothed rotor set |
| 09/15/2009 | CA2159672C A valve train with suction-controlled ring gear/internal gear pump |
| 09/10/2009 | US20090226336 Axial flow positive displacement turbine |
| 09/10/2009 | US20090223665 Well treatment using a progressive cavity pump |
| 09/10/2009 | DE102006001288B4 Hydraulische Flügelzellenpumpe Hydraulic vane pump |
| 09/09/2009 | EP2098684A2 Positive-displacement machine design (variants) |
| 09/09/2009 | EP1163449B1 Variable displacement vane pump |
| 09/09/2009 | CN201306279Y Improved oil pump |
| 09/09/2009 | CN201306278Y Three-screw pump block prying device |
| 09/09/2009 | CN201306277Y Highly viscous three-screw pump |
| 09/09/2009 | CN100538076C Volume variable vane pump |
| 09/09/2009 | CN100538075C Clamping device |
| 09/08/2009 | CA2409054C Method of forming a moineau stator and a moineau stator |
| 09/03/2009 | WO2009105957A1 Linkage variable-capacitor machine for positive displacement fluid mechanism |
| 09/03/2009 | US20090220369 Non-contact seal for positive displacement capture device |
| 09/03/2009 | US20090220368 Positive displacement capture device and method of balancing positive displacement capture devices |
| 09/03/2009 | DE202009004157U1 Fluidenergiemaschine mit Beschichtung Fluid Power engine with coating |
| 09/02/2009 | CN201301806Y Large-flow high-pressure screw pump |
| 09/02/2009 | CN101523053A Three-throw gear pump |
| 09/02/2009 | CN101523046A Compressor slide valve support |
| 09/02/2009 | CN100535444C Rotary piston type oil pump |
| 09/02/2009 | CN100535443C Method for making Moineau pump stator and resulting stator |
| 09/02/2009 | CN100535442C Oil pump of scroll compressor |
| 09/02/2009 | CN100535441C Pump rotors |
| 09/01/2009 | US7581936 Hermetically sealed compressor having oil supply mechanism based on refrigerant pressure |
| 08/27/2009 | WO2009085112A3 Nano particle reinforced polymer element for a stator and rotor assembly |
| 08/27/2009 | US20090214372 Remote Hot Melt Adhesive Metering Station |
| 08/27/2009 | US20090214369 Eccentric screw pump |
| 08/27/2009 | US20090214368 Vacuum Pump |
| 08/26/2009 | EP2093426A1 Electric operated pump unit and electric operated oil pump |
| 08/26/2009 | CN101517235A Gear pump with reduced pressure impulses on the conveyor side |
| 08/26/2009 | CN101514700A Internal gearing oil pump for large-scale bus automatic transmission |
| 08/26/2009 | CN101514699A Oil-gas separation circular arc type inside engaged gear combined oil pump |
| 08/26/2009 | CN100532841C Variable output rotor pump |
| 08/26/2009 | CN100532840C Gear pump and automatic transmission machine using the same |
| 08/25/2009 | US7578663 Combined pump with rotodynamic impeller |
| 08/25/2009 | US7578278 Multilobe rotary motion asymetric compression/expansion engine |
| 08/20/2009 | US20090208357 Rotary gear pump for use with non-lubricating fluids |
| 08/19/2009 | CN101512158A Gear pump |
| 08/19/2009 | CN101512046A Electroforming stator tube for screw rod device |