| 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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| 03/26/2009 | WO2009038473A1 A progressing cavity pump with several pump sections |
| 03/19/2009 | WO2009034430A1 Rotary internal combustion engine or pump |
| 03/18/2009 | EP1252443B1 Hydraulic fluid vane pump |
| 02/18/2009 | EP2025934A1 Motor pump unit |
| 02/11/2009 | EP2022985A2 Valiable displacement type gear pump |
| 02/10/2009 | US7488160 Motor-pump unit |
| 02/03/2009 | US7484944 Rotary vane pump seal |
| 02/03/2009 | US7484943 Screw pump with improved efficiency of drawing fluid |
| 01/29/2009 | DE102007042933A1 Multiple pump system for motor vehicle, has leakage oil borehole whose open end is provided with protective cover preventing entry of foreign bodies into opened end of leakage oil bore hole |
| 01/27/2009 | CA2425051C Liquid-cooled electromotor |
| 01/20/2009 | US7479000 Gear pump |
| 01/08/2009 | DE102007030249A1 Zahnradpumpenanordnung Gear pump assembly |
| 12/31/2008 | CN100447430C Charge/auxiliary circuit for reducing power losses in hydrostatic systems |
| 12/17/2008 | CN100443723C Vane pump with integrated shaft, rotor and disc |
| 12/10/2008 | CN201162640Y Double-power apparatus of engineering machinery |
| 11/27/2008 | WO2008141361A1 A pump for a desalination system |
| 11/20/2008 | WO2008138656A1 Pump assembly for synchronous pressurization of two fluid columns |
| 11/20/2008 | DE102007032103A1 Pumpeneinheit mit einer Hauptpumpe und einer in ihrem Fördervolumen verstellbaren Ladepumpe Pump unit with a main pump and an adjustable in its delivery charge pump |
| 11/20/2008 | DE102007032102A1 Pumpeneinheit mit Hauptpumpe und Hilfspumpe Pump unit with main pump and auxiliary pump |
| 11/19/2008 | CN101310111A Hot melt adhesive metering pump assembly with integral reservoir tank |
| 11/18/2008 | CA2232175C Wellhead drive brake system |
| 11/12/2008 | EP1989448A1 Oil-pump and vacuum-pump module |
| 11/06/2008 | WO2008133600A1 Novelty in electric fuel pumps for internal combustion engines |
| 11/06/2008 | WO2008103300A3 Flexible impeller pumps for mixing individual components |
| 10/29/2008 | EP1984600A1 Adjustable segment expeller |
| 10/22/2008 | EP1982073A1 Hydrostatic energy generation unit |
| 10/01/2008 | EP1558796B1 Device and method for injecting a liquid colour into a polymer melt |
| 09/17/2008 | CN100419270C Exhaust valve of compressor |
| 09/02/2008 | CA2348812C Rotary piston engine having a gear pump and an oil metering pump |
| 08/28/2008 | CA2678589A1 Flexible impeller pumps for mixing individual components |
| 08/27/2008 | CN101251108A Oil pump pressure control device |
| 08/27/2008 | CN101251107A Multilevel inner series dual supercharging double-circular-arc gear pump |
| 08/20/2008 | EP1958757A2 Extruder |
| 08/14/2008 | US20080193301 Composite fluid machine |
| 07/29/2008 | CA2379792C Improved pump |
| 07/16/2008 | EP1943423A1 Pump arrangement |
| 07/16/2008 | CN101223363A Gear pump |
| 07/09/2008 | EP0999115B1 Power steering device |
| 07/09/2008 | CN100400355C Motor-pump unit |
| 07/08/2008 | CA2326363C Engine with oil pump |
| 07/02/2008 | EP1937975A1 Hot melt adhesive metering pump assembly with integral reservoir tank |
| 06/11/2008 | CN100394020C Fuel-supplying apparatus |
| 06/05/2008 | DE102006056843A1 Förderaggregat Delivery unit |
| 06/04/2008 | EP1927753A2 Conveying unit |
| 06/04/2008 | CN101191484A Multi-level pump device |
| 06/03/2008 | US7381036 Motor-pump unit |
| 05/29/2008 | WO2008062486A1 Improved multi -pump delivering device for dye-meter |
| 05/29/2008 | WO2008062023A1 Rotary displacement machine |
| 05/29/2008 | DE102006055845A1 Multi-stage pump arrangement, has three pumps whose pressure sides are connected with common load line for adjusting high volume flow, where two of pumps are parallely connected for adjusting high pressurizing medium volume flow |
| 05/21/2008 | EP1495227B1 Hydraulic pump unit |
| 05/21/2008 | CN101184920A Gear machine for combining two fluid streams and associated method |
| 05/08/2008 | DE102006052322A1 Hydraulic machine comprises two tooth sets, each of which has outer-toothed gear wheel and cooperating toothed element, where gear wheels are connected with the adjacent sets through oldham coupling |
| 05/06/2008 | US7367787 Pumping unit for a liquid medium |
| 05/06/2008 | US7367782 Pump plate of a rotary feed pump |
| 04/24/2008 | WO2008046828A1 Rotary positive displacement pump with magnetic coupling having integrated cooling system |
| 04/09/2008 | EP1908956A1 Progressing cavity pump with wobble stator and magnetic drive |
| 03/26/2008 | CN101149052A Symmetrical form cavity pressurization and reclamation combination pump |
| 03/26/2008 | CN100376728C Apparatus for injecting a liquid dye into a polymer melt |
| 03/13/2008 | WO2008028546A1 Hydrostatic energy generation unit |
| 03/12/2008 | EP1317624B1 Hydraulic system comprising a main pump and a precompression pump |
| 03/12/2008 | CN100374723C Fuel supply apparatus |
| 02/27/2008 | CN101133239A Intelligent driver module for controlling operation of a fuel pump |
| 02/23/2008 | CA2596582A1 Progressive vortex pump |
| 02/20/2008 | EP1888919A2 Gear machine for combining two fluid streams and associated method |
| 02/14/2008 | WO2003102420A9 Gear pump |
| 02/07/2008 | US20080029461 Proportioning, Regenerative, Rotary Pump |
| 02/06/2008 | EP1884660A1 Screw feeder for a progressive cavity pump |
| 01/30/2008 | EP1025361B1 Pumping apparatus |
| 01/08/2008 | US7316551 Vane pump with integrated shaft, rotor and disc |
| 01/02/2008 | EP1597459B1 Pump combination |
| 01/01/2008 | US7314352 Electric pump |
| 12/27/2007 | DE102006030917A1 Oil pump and vacuum pump module for e.g. petrol engine, has driven gears connected with each other for collectively driving oil and vacuum pumps that are arranged in common housing with common mounting surface |
| 12/27/2007 | DE102006029553A1 Oil pump and vacuum pump module for internal combustion engines, has oil and vacuum pump and air conveying element of vacuum pump and oil conveying element of oil pump are connected with common drive shaft |
| 12/19/2007 | CN200992206Y Diesel-engine drive device of double refrigerator group for railway mechanical refrigeration vehicle |
| 12/13/2007 | WO2007057848A3 Pump apparatus and methods for using same |
| 11/27/2007 | US7299629 Charge/auxiliary circuit for reducing power losses in hydrostatic systems |
| 11/15/2007 | US20070264144 Extruder System with Integrated Gear Pump |
| 11/14/2007 | EP1853809A1 Intelligent driver module for controlling operation of a fuel pump |
| 11/07/2007 | CN101067417A Multistage double-circular arc gear high pressure large flow pump |
| 11/06/2007 | US7290995 Tandem type trochoid pump and method of assembling the same |
| 11/06/2007 | US7290991 Dual oil supply pump |
| 10/24/2007 | CN100344880C Refrigerating pump |
| 10/11/2007 | DE202007005404U1 Fördereinrichtung für Gefahrengut Conveyor for dangerous goods |
| 10/10/2007 | EP1388131B1 Improved fluid metering device |
| 10/09/2007 | US7278776 Apparatus and method for injecting a liquid dye into a polymer melt |
| 08/29/2007 | CN101027484A Rotary pump with resiliently deformed seal |
| 08/23/2007 | WO2007093637A1 Adjustable segment expeller |
| 08/23/2007 | WO2007093581A1 Oil-pump and vacuum-pump module |
| 07/31/2007 | CA2449636C Hot melt adhesive dispensing applicator assembly with independent gear pump assemblies |
| 07/19/2007 | WO2007079609A1 Energy increasing device and such method |
| 07/19/2007 | DE19815480B4 Angeflanschte Zahnradpumpe für Hydraulikkreislauf in einem Verdichter Flanged gear pump for hydraulic circuit in a compressor |
| 07/18/2007 | EP1438510B1 Vacuum pump |
| 07/04/2007 | EP1803938A1 High integrated pump unit with electric motor |
| 07/04/2007 | CN1324241C Variable capacity rotary compressor |
| 06/27/2007 | EP1801418A1 Planetary gear pump |
| 06/27/2007 | EP1274932B8 Pump |
| 06/14/2007 | DE10005779B4 Verfahren zur Verbesserung des Anlaufverhaltens einer Vorrichtung beim Übergang vom Pumpen- in den Motorbetrieb A method for improving the startup behavior of a device during the transition from the pump to the engine operating |
| 05/30/2007 | CN2906133Y Variable displacement pump |
| 05/24/2007 | CA2630859A1 Pump apparatus and methods for using same |
| 05/23/2007 | EP1787027A1 Rotary pump with resiliently deformed seal |