| 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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| 07/19/2007 | CA2636627A1 Hydraulic machine, in particular hydraulic motor, with a recipricating movement |
| 07/18/2007 | EP1727981B1 Device and method for controlling a thick matter pump |
| 07/18/2007 | EP1727979B1 Device and method for controlling a thick matter pump |
| 07/18/2007 | CN2924063Y Five-cylinder horizontal piston slurry pump |
| 07/18/2007 | CN2924062Y Hand-rocking type pipe water-well |
| 07/18/2007 | CN2924061Y 脉动泵 Pulsating pump |
| 07/18/2007 | CN1327133C Programmable, fluid pressure actuated blood processing systems and methods |
| 07/17/2007 | US7244357 Pumps for filtration systems |
| 07/17/2007 | US7244224 Pump driving unit for driving a pump used for supporting or substitution of cardiac function |
| 07/12/2007 | WO2007077711A1 Operation aid for manual pump |
| 07/12/2007 | DE102006000832A1 Radial piston pump for fuel high pressure supply in fuel injection system of internal combustion engine, has pump unit including pump piston, where flow rate control of piston pump takes place by stroke length adjustment of pump piston |
| 07/12/2007 | DE102006000831A1 Radial piston pump for fuel high pressure supply of internal combustion engine, has continuously variable transmission, which stays in effective connection with drive shaft, where revolution speed of shaft is adjustable using transmission |
| 07/11/2007 | CN2921369Y Special non-return valve for domestic hand water pump |
| 07/11/2007 | CN2921358Y Energy-saving press machine |
| 07/11/2007 | CN2921357Y 气动泵 Pneumatic pumps |
| 07/11/2007 | CN2921354Y Road vehicle roll pressure energy conversion utilizing device |
| 07/11/2007 | CN1325271C Printing apparatus, print head performance recovery device and method, and piston pump |
| 07/10/2007 | US7240996 Liquid delivering apparatus |
| 07/04/2007 | EP1390607B1 Central lubricating unit |
| 07/04/2007 | EP1023095B1 One-hand pulse pump |
| 07/04/2007 | CN2918782Y Water-drawing device for high sand content water |
| 07/04/2007 | CN1324238C Micromachined fluidic device and method for making same |
| 07/04/2007 | CN1324237C Piston-dislocation type reciprocating pump |
| 06/28/2007 | US20070149926 Method and Apparatus for Detecting Errors, Fluid Pressure, and Occlusions in an Ambulatory Infusion Pump |
| 06/28/2007 | DE19830890B4 Dreiringnadellagerung für einen Pumpenteil Three-ring needle bearing for a pump part |
| 06/28/2007 | DE102005060990A1 Antrieb und hydrostatische Kolbenmaschine mit Rückgewinnung von Bremsenergie Drive and hydrostatic piston engine with recovery of braking energy |
| 06/28/2007 | CA2630446A1 System and method for determining onset of failure modes in a positive displacement pump |
| 06/27/2007 | EP1274932B8 Pump |
| 06/27/2007 | CN2916182Y Short-crankshaft driven four-plunger pump with plungers in layered arrangement manner |
| 06/27/2007 | CN2915743Y Spring built-out type emulsion pump |
| 06/26/2007 | US7234448 Fuel injection pump having filter |
| 06/21/2007 | WO2007016177A3 Reciprocating piston pump with air valve, detent and poppets |
| 06/21/2007 | US20070140871 Cams and cam followers |
| 06/21/2007 | DE102005059831B3 Hochdruckpumpe High pressure pump |
| 06/20/2007 | EP1798415A1 High pressure pump |
| 06/20/2007 | CN2913665Y ABS plunger pump assembly |
| 06/20/2007 | CN2913663Y Hand-operated dross taking out pump for mathane-generating pit |
| 06/19/2007 | US7232423 Infusion pump system, an infusion pump unit and an infusion pump |
| 06/14/2007 | WO2000004289A3 Diaphragm pump including improved drive mechanism and pump head |
| 06/14/2007 | US20070134107 Feeding pump device of volume tube continually metering type |
| 06/14/2007 | DE102006015897A1 Electric motor pump unit, has channels provided for transporting leakage fluid from crank case into spatial environment, and needle bush with ring shaped sealing unit, which closes gap within shaft passage |
| 06/13/2007 | EP1794454A1 Wellbore-external underwater pump |
| 06/13/2007 | EP1794452A1 Reciprocating pump for delivering fluids |
| 06/13/2007 | CN1321301C Fluid machine |
| 06/12/2007 | US7229260 Oilless air motor assembly for hydraulic pumps |
| 06/07/2007 | WO2007063759A1 Suction pump |
| 06/07/2007 | WO2007045791A3 Fluid product dispensing pump |
| 06/07/2007 | US20070128053 Pump |
| 06/06/2007 | CN2908847Y Powerless automatic suction pump |
| 06/06/2007 | CN2908846Y Improved hand liquid extraction piston |
| 06/05/2007 | US7225946 Constant pressure fluid-dispensing pumping system and method |
| 05/30/2007 | EP1789680A2 Outlet check valve for fluid bladders |
| 05/30/2007 | CN2906126Y Pedal type cycle pumping machine |
| 05/30/2007 | CN2906125Y Pedal-type pumping device |
| 05/30/2007 | CN1318215C Liquid injector with micro-mechanoelectric device |
| 05/29/2007 | CA2422039C Arrangement at a piston engine and method of controlling the pistons |
| 05/24/2007 | WO2007057650A1 Pressure exchanger |
| 05/24/2007 | WO2007016081A3 Reciprocating pump with electronically monitored air valve and piston |
| 05/24/2007 | US20070116579 Positive-displacement reciprocating compressor |
| 05/24/2007 | DE4300512B4 Antrieb für eine Kraftstoffpumpe von Fahrzeugen Drive for a fuel pump of vehicles |
| 05/24/2007 | DE102006010680A1 Radialkolbenpumpe Radial piston pump |
| 05/24/2007 | DE102005055057A1 Mehrkolbenpumpe Multi-piston pump |
| 05/23/2007 | EP1788244A2 Radial piston pump |
| 05/23/2007 | CN1317558C Liquid delivery pump for liquid chromatograph |
| 05/23/2007 | CN1317082C Distribution pump for a liquid product |
| 05/18/2007 | WO2004090338A3 Dynamic system for refrigeration equipment |
| 05/17/2007 | US20070110594 Controllable drive for a motor vehicle, in particular for a coolant pump |
| 05/17/2007 | US20070110593 Pump Apparatus, Systems and Methods |
| 05/17/2007 | US20070108234 Simplified Airless Dispensing Pump For Liquid Product |
| 05/16/2007 | EP1385779A4 Accurate dosing pump and accessories therefor |
| 05/16/2007 | CN2900857Y Hand liquid pump |
| 05/16/2007 | CN2900856Y Liquid pump improved structure |
| 05/16/2007 | CN2900855Y Piston push press type high-life pumping device for water |
| 05/16/2007 | CN1964795A Simplified airless dispensing pump for liquid products |
| 05/15/2007 | USRE39625 Boosted air source heat pump |
| 05/10/2007 | WO2007052377A1 Micropump and micro fluid chip |
| 05/10/2007 | US20070104591 Fuel pump |
| 05/09/2007 | EP1485619B1 Pump |
| 05/09/2007 | CN2898355Y Double-functional manual mud pump |
| 05/09/2007 | CN2898353Y Non-mechanical economical pressurized-water pump |
| 05/09/2007 | CN2898352Y Medicinal-liquor atomizing pump |
| 05/09/2007 | CN1961152A Drive device for a dual-cylinder slurry pump and method for operating said pump |
| 05/03/2007 | WO2007048312A1 A hydraulic driving device |
| 05/03/2007 | WO2006114591A3 Fluid pump and motor unit |
| 05/03/2007 | DE4333578B4 Hydraulikpumpe Hydraulic pump |
| 05/03/2007 | DE102005056683B3 Displacement unit for high pressure pump, has power transmission unit with curved regions standing in intervention with curved region of side of rod and curved region of tappet base, respectively, where regions are curved concave or convex |
| 05/02/2007 | EP1631761B1 Three-way poppet valve for work exchanger |
| 05/02/2007 | EP1274932B1 Pump |
| 05/01/2007 | US7210463 Pump, especially for a fuel injection device for an internal combustion engine |
| 05/01/2007 | CA2135836C Volumetric pump/valve |
| 04/26/2007 | WO2007045791A2 Fluid product dispensing pump |
| 04/25/2007 | CN2893211Y Gas driving liquid booster pump |
| 04/25/2007 | CN1952390A Automatic-boosting reciprocating pump |
| 04/24/2007 | US7207260 Reciprocating hydraulic machine, especially a motor, and dosing apparatus comprising such a motor |
| 04/24/2007 | CA2511254C High-pressure gas compressor and method of operating a high-pressure gas compressor |
| 04/24/2007 | CA2390298C Improved fluid reservoir piston |
| 04/19/2007 | WO2007041935A1 Hydraulic reciprocating pump |
| 04/18/2007 | EP1775469A2 A pump |
| 04/18/2007 | EP1775468A2 A valve assembly |
| 04/18/2007 | EP1774175A1 Pump for liquids with radial cylinders |