| Patents for F04C 11 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations (1,800) |
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| 05/28/2014 | CN203614396U 箱外支撑旋转活塞泵 Supporting the rotary piston pump outside the box |
| 05/27/2014 | US8734126 Screw compressor |
| 05/15/2014 | DE102012210938A1 Innenzahnradpumpe Internal gear pump |
| 05/15/2014 | DE102012210925A1 Doppelinnenzahnradpumpe Double internal gear pump |
| 05/08/2014 | WO2014067545A1 Automotive electric liquid pump |
| 05/01/2014 | US20140119963 Submersible Integrated Electric Pump |
| 04/30/2014 | CN203570585U Solar screw submersible pump |
| 04/30/2014 | CN103758758A Alternating current servo direct drive electro-hydraulic pump |
| 04/30/2014 | CN102037244B Underwater delivery unit |
| 04/30/2014 | CN101939544B Device for dividing a flow equally between two or more objects |
| 04/24/2014 | WO2014060136A1 Internal gear pump |
| 04/24/2014 | WO2013127626A3 Pump arrangement |
| 04/23/2014 | CN103742409A Leakproof gear pump |
| 04/23/2014 | CN103742408A Anti-loosening gear pump |
| 04/17/2014 | WO2014057649A2 Balanced Pressure Dual Pump |
| 04/15/2014 | USRE44841 Pump with conveying chamber formed in outer rotor surface |
| 04/10/2014 | US20140099227 Pump apparatus |
| 04/09/2014 | EP2716912A1 Balanced pressure dual pump |
| 04/09/2014 | EP2715104A2 Hydraulic transmission device and compact hydraulic starter |
| 04/03/2014 | US20140093408 Motor-driven compressor |
| 04/02/2014 | CN103703284A Oil pressure circuit for transmissions |
| 04/02/2014 | CN102203422B Fully submerged integrated electric oil pump |
| 03/26/2014 | EP2710267A1 Pump |
| 03/24/2014 | DE202012012359U1 Pumpstand zum Pumpen leichter Gase Pumping station for pumping of light gases |
| 03/12/2014 | CN103629110A Dual-gear oil pump compensating axial clearance by side plates |
| 03/12/2014 | CN102996439B Combined pump integrating automobile steering power and lubricating oil transportation |
| 02/19/2014 | EP2698539A2 Electrically driven dual pump |
| 02/19/2014 | CN203441746U Sealed dustproof dual gear oil pump |
| 02/19/2014 | CN203441745U Gear pump adopting double parallel structure |
| 02/19/2014 | CN103591019A Electrically driven dual pump |
| 02/05/2014 | CN203420881U Oil pump provided with double gears |
| 02/05/2014 | CN203420880U Multi-level extending structure of gear oil pumps |
| 02/05/2014 | CN103562541A Hydraulic transmission device and compact hydraulic starter |
| 02/04/2014 | CA2578296C Rotary pump with resiliently deformed seal |
| 01/29/2014 | CN103541897A Outside-box supported rotary piston pump |
| 01/28/2014 | US8636487 Dual stage pump having intermittent mid-shift load supports |
| 01/22/2014 | CN203404070U Direct-insertion-type gear pump special for internally-arranged sealing gasket-type power takeoff |
| 01/02/2014 | US20140003987 Aircraft main engine fuel pump with multiple gear stages using shared journals |
| 01/02/2014 | DE102013210330A1 Pumpenvorrichtung Pump device |
| 01/02/2014 | DE102012210731A1 Doppelinnenzahnradpumpe Double internal gear pump |
| 01/01/2014 | CN203374479U Dual-cavity gear pump |
| 01/01/2014 | CN101027484B Rotary pump with resiliently deformed seal |
| 12/25/2013 | CN203362512U Marine low-speed helical gear oil pump unit |
| 12/18/2013 | CN203348074U Double gear pump unit |
| 12/12/2013 | US20130330218 Portable Hydrostatic Test Pump |
| 12/11/2013 | EP2670640A1 Method for circuit separation testing in a double gearwheel pump |
| 12/11/2013 | EP2670639A1 Double internal gear wheel pump |
| 12/11/2013 | CN203335394U Gear pump dragged by small direct current motor |
| 12/10/2013 | US8602755 Rotary compressor with improved suction portion location |
| 12/04/2013 | CN203321817U Multistage parallel connection internal gear pump |
| 11/26/2013 | US8591203 Pump apparatus |
| 11/21/2013 | WO2013172410A1 Multistage oil pump |
| 11/21/2013 | WO2013172409A1 Multistage oil pump |
| 11/14/2013 | WO2012175348A3 Vane pump |
| 11/14/2013 | DE19918390B4 Pumpenvorrichtung und Verfahren zum Zusammenbauen der Pumpenvorrichtung Pump apparatus and method of assembling the pump device |
| 11/06/2013 | CN203271974U 无刷电机滚柱泵 Brushless motor roller pump |
| 10/31/2013 | WO2013162427A1 Multi-stage vane pump |
| 10/23/2013 | CN102322420B Sequentially controlled twin steering pump |
| 10/09/2013 | CN203227618U Screw cleaning machine |
| 10/02/2013 | CN103338990A Method for circuit separation testing in a double gearwheel pump |
| 10/02/2013 | CN103338989A Double internal gear wheel pump |
| 09/25/2013 | EP2642126A1 Oil pump device |
| 09/18/2013 | CN101855452B Pump assembly for synchronous pressurization of two fluid circuits |
| 09/11/2013 | CN103296835A Wet rotor pump motor stator sealing liner |
| 09/04/2013 | EP2634430A1 Gear pump assembly |
| 09/04/2013 | CN203175853U Aqueous solution screw pump constant pressure output system |
| 08/29/2013 | WO2012116962A3 Vane pump |
| 08/28/2013 | CN203161526U Direct-drive transmission multiplex hydraulic gear pump |
| 08/27/2013 | US8517702 Rotary compressor with enhanced sealing between mode switching device and chamber thereof |
| 08/22/2013 | DE102012003151A1 Internal gear pump for use in motor vehicle, has housing comprising inlet and outlet for fluid to be delivered, where housing is arranged with latching element through which two pump stages are connected with each other |
| 08/21/2013 | CN203146320U Dual-oil pump mechanism of automobile transmission |
| 08/21/2013 | CN103256220A Gear pump and engineering machine |
| 08/14/2013 | EP2625428A1 Dual outlet pump |
| 08/14/2013 | CN203130492U Double gear pump |
| 08/14/2013 | CN103249951A Metering pump or segment, and metering pump assembly comprising a plurality of metering pumps or segments |
| 08/13/2013 | US8506269 Low noise type balance shaft module |
| 08/08/2013 | US20130202464 Electric oil pump system |
| 08/07/2013 | EP2623784A2 Electric oil pump system |
| 08/07/2013 | CN203114615U Novel whole sealing delivery pump |
| 08/01/2013 | US20130195697 Hydraulic power steering pump having wet type motor with open type magnet |
| 07/31/2013 | CN203098272U Double brake and steering pump |
| 07/31/2013 | CN103228918A Dual outlet pump |
| 07/30/2013 | US8496457 Metering gear pump with integral flow indicator |
| 07/25/2013 | WO2013107648A1 Hydraulic device having a temperature-control device |
| 07/18/2013 | WO2013064386A3 Pump device for delivering a medium |
| 07/18/2013 | US20130183175 Driving device |
| 07/17/2013 | CN203068142U Hydraulic motor leaked oil recovery device of rotary table chain conveying machine |
| 07/17/2013 | CN203067280U Mobile drainage pump truck |
| 07/17/2013 | CN103210217A 油泵设备 Pump Equipment |
| 07/17/2013 | CN103206385A Wet Turbomachine |
| 07/17/2013 | CN103206374A Electric pump |
| 07/17/2013 | CN102506023B 泵 Pump |
| 07/15/2013 | DE202013102895U1 Kombinationspumpe für Lenkungs-Antriebskraft und Schmieröl-Förderung des Fahrzeugs Combination pump for steering driving force and lubricating oil production of the vehicle |
| 07/10/2013 | CN203051107U Automatic flow regulation device for oil pump |
| 07/03/2013 | EP2610492A1 Motor control unit and electric pump unit |
| 07/03/2013 | CN103190073A Electric delivery pump and method for operating an electric delivery pump |
| 06/26/2013 | EP2606234A2 Rotary piston pump |
| 06/19/2013 | EP2604790A2 Multi-discharge hydraulic vane pump |
| 06/19/2013 | CN203009289U Oil pump |
| 06/19/2013 | CN203009288U Floating type wind power pumping device |