| Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236) |
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| 05/05/2011 | CA2779113A1 Pressure control system |
| 05/04/2011 | EP2317639A1 Electroactive polymer devices for moving fluid |
| 05/04/2011 | CN201818990U High-pressure grease injection equipment |
| 05/04/2011 | CN201818455U Plunger pump based on linkage control valve |
| 05/04/2011 | CN201818454U Five-cylinder single-acting slurry pump |
| 05/04/2011 | CN201818453U Novel water pump |
| 04/28/2011 | WO2011049549A1 Water pump for use in irrigation and for other purposes |
| 04/28/2011 | WO2011049330A2 Bubble-generating pump |
| 04/28/2011 | WO2011008715A3 Dispensing pump |
| 04/28/2011 | US20110097223 Oil filter for downhole motor |
| 04/27/2011 | CN201810508U Multifunctional pneumatic pump |
| 04/27/2011 | CN1654820B Manual pump mechanism and delivery system |
| 04/27/2011 | CN102032134A Telescopic water pump device and water pump system |
| 04/27/2011 | CN102032133A Reciprocating vacuum hydraulic thrust cylinder |
| 04/21/2011 | WO2011046352A2 Manual hand pump having a sealing function |
| 04/21/2011 | WO2011005571A3 Readily removable pump crosshead |
| 04/21/2011 | US20110091331 High pressure pumping cartridges for medical and surgical pumping and infusion applications |
| 04/21/2011 | US20110088506 Pump tappet |
| 04/21/2011 | DE102009049242A1 Hydraulic pumping device i.e. piston pump, for conveying e.g. operating medium, has piston including driving pressure surface to which driving pressure is applied and working pressure surface restricting working pressure chambers of pump |
| 04/20/2011 | EP1910678B1 Reciprocating pump with electronically monitored air valve having battery and solenoid electronic monitoring |
| 04/20/2011 | CN201802613U Structure of water leakage hole |
| 04/20/2011 | CN201802573U Labor-saving manual pressure pump with adjustable force arm and moveable pump seat |
| 04/20/2011 | CN102027235A Pump tappet |
| 04/20/2011 | CN102022301A Three-cam shaft for large-flow high-pressure constant flow pump |
| 04/20/2011 | CN102022300A High-precision continuous glue supplying pump device |
| 04/19/2011 | US7927082 Highly efficient durable fluid pump and method |
| 04/14/2011 | WO2011042252A1 Hand pump for pumping fluids, and filter system for fluids, comprising a hand pump |
| 04/14/2011 | WO2011042008A1 Hydraulic pumping device |
| 04/14/2011 | WO2010084002A3 Hydraulic machine assembly |
| 04/14/2011 | US20110085923 Method and Device for Regulating Fluid Pump Pressures |
| 04/14/2011 | DE102009048211A1 Handpumpe zum Pumpen von Flüssigkeiten und Filtersystem für Flüssigkeiten mit einer Handpumpe Hand pump for pumping of liquids and for liquids with a filter system Hand pump |
| 04/13/2011 | CN201794735U Hydraulic drive type liquid booster pump |
| 04/13/2011 | CN201794734U Single eccentric translational reciprocating mechanism |
| 04/13/2011 | CN102016317A Hydraulically driven machine improvement |
| 04/13/2011 | CN102011767A Hydraulic system |
| 04/07/2011 | WO2011040320A1 Piezoelectric micro-blower |
| 04/07/2011 | DE112009001112T5 Pumpenstößel Pump plunger |
| 04/06/2011 | CN201786597U Pneumatic-hydraulic boosting plunger pump |
| 04/06/2011 | CN102003366A Return synergic pressurized reciprocating plunger liquid charge pump and working method |
| 04/06/2011 | CN102003365A Combined type high and low pressure cylinder hydraulic end |
| 04/06/2011 | CN101290001B Tide generation station |
| 04/06/2011 | CN101255857B Empty-drum-shaped piston type floating force water elevator |
| 03/31/2011 | WO2010132374A3 Polymer-metallic reagent head |
| 03/31/2011 | WO2003024667A3 Oilless air motor assembly for hydraulic pumps |
| 03/31/2011 | DE202010012964U1 Manuell und pneumatisch antreibbare Pumpe Manual and pneumatic driven pump |
| 03/31/2011 | DE102009045113A1 Pressure limiting device e.g. pressure limiting valve, for use in reciprocating piston pump utilized for diesel fuel injection system of internal combustion engine, has pressure spring arranged between cam shaft and reciprocating piston |
| 03/30/2011 | CN201778968U Bendable hand rocker arm |
| 03/30/2011 | CN201778967U External spring type emulsion pump |
| 03/30/2011 | CN101233323B Reciprocating piston pump with air valve, detent and poppets |
| 03/29/2011 | US7914264 Controllable drive for a motor vehicle, in particular for a coolant pump |
| 03/24/2011 | DE202011001467U1 Handpumpe Hand pump |
| 03/23/2011 | EP2299114A1 Pump assembly |
| 03/23/2011 | CN201771708U 手压泵 Hand pump |
| 03/23/2011 | CN201771707U Hand biogas-residue pump |
| 03/23/2011 | CN201771706U Double-pump continuous water pumping device |
| 03/23/2011 | CN201771705U Handlance leakproof seal cup |
| 03/23/2011 | CN201771704U Pneumatic lipid gasoline pump |
| 03/23/2011 | CN201771703U Piston-type feed pump applied to coating and spraying process in pipeline |
| 03/23/2011 | CN101988486A Floating type hydraulic pressure automatic continuous water pumping device |
| 03/23/2011 | CN101988483A Fishing tool |
| 03/22/2011 | US7911115 Monolithic electroactive polymers |
| 03/17/2011 | WO2011030237A2 High-pressure homogenizer with an epicyclic reduction gear unit |
| 03/17/2011 | WO2011029649A1 Pump assembly |
| 03/17/2011 | CA2771184A1 High-pressure homogenizer with an epicyclic reduction gear unit |
| 03/16/2011 | EP2295798A1 Drive device for the piston of a fluid pump |
| 03/16/2011 | CN201763560U Foot-operated water pump |
| 03/16/2011 | CN201763559U Double acting piston pump |
| 03/16/2011 | CN201763558U Oilless pump for high-pressure cleaners |
| 03/16/2011 | CN201763557U Portable forest fire fighting water pump |
| 03/16/2011 | CN101545471B Pneumatic diving pump |
| 03/16/2011 | CN101446275B Metering pump with constant speed and constant pressure |
| 03/10/2011 | WO2011027059A1 Device for injecting a reducing agent for selective catalytic reduction, and assembly comprising an engine and an exhaust line provided with such an injection device |
| 03/10/2011 | WO2011026944A1 Electromotive hydraulic drive, and method for providing a defined hydraulic pressure and/or volume |
| 03/10/2011 | DE102009029297A1 Piston pump, particularly high-pressure pump for fuel injection device of internal combustion engine, comprises pump piston, which is adjustably guided to shaft in radial manner |
| 03/10/2011 | CA2771873A1 Energy multiplier levers system |
| 03/09/2011 | EP1915532B1 High-pressure gas compressor and method of operating a high-pressure gas compressor |
| 03/09/2011 | CN201757042U Reciprocating plunger pump |
| 03/03/2011 | DE202010017156U1 Handbetätigter Vakuumabzieher A manual Vakuumabzieher |
| 03/02/2011 | EP2289577A1 Apparatus and method for regulating fluid pump pressures |
| 03/01/2011 | CA2619570C Method and apparatus to pump liquids from well |
| 02/24/2011 | WO2011020177A1 Switching assembly for a hydraulic pump jack |
| 02/24/2011 | US20110044830 Pump assembly |
| 02/24/2011 | DE102009028609A1 Manually operated pump device for exhaustion of fuel injection system of internal-combustion engine, has housing that is adjusted besides annular piston |
| 02/24/2011 | CA2771458A1 Switching assembly for a hydraulic pump jack |
| 02/23/2011 | CN101113726B Piezoelectric drive device and liquid discharging device |
| 02/22/2011 | US7892206 Method and apparatus for detecting errors, fluid pressure, and occlusions in an ambulatory infusion pump |
| 02/18/2011 | CA2675497A1 Switching assembly for a hydraulic pump jack |
| 02/17/2011 | WO2011018389A1 High pressure pump |
| 02/17/2011 | WO2011018244A1 Pump device having a drive device for the piston of a fluid pump |
| 02/17/2011 | WO2011017817A1 Oldham pump |
| 02/17/2011 | DE102009028394A1 Hochdruckpumpe High pressure pump |
| 02/17/2011 | DE102009028392A1 High-pressure pump, particularly radial or reciprocating-piston-pump for fuel injection plant of air-compressing, self-igniting internal combustion engines, has pump assembly and drive shaft |
| 02/16/2011 | EP2284448A2 Condensate drain pump for an air conditioner |
| 02/16/2011 | CN101978173A Photoresponsive gas-generating material, micropump and microfluid device |
| 02/16/2011 | CN101975150A Double-action plunger-type deicing liquid pump |
| 02/10/2011 | WO2011015677A1 Hydraulic pumping system of variable flow per revolution |
| 02/09/2011 | CN201739115U Manual hydraulic pump |
| 02/09/2011 | CN201739114U Household manual high-pressure water pump |
| 02/09/2011 | CN201739113U Crankshaft-type water pump |
| 02/09/2011 | CN201735473U Spray pump |