| 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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| 02/09/2012 | WO2012017820A1 Fluid rotary machine |
| 02/09/2012 | WO2012017547A1 Check valve, three-way stopcock unit, and fluid substance transfer tool |
| 02/08/2012 | EP2416010A1 Syringe drive unit |
| 02/08/2012 | CN102348894A 挺杆 Tappet |
| 02/02/2012 | WO2012012896A1 Downhole pump with a pressure sequencing valve |
| 02/02/2012 | DE102010038679A1 Cam shaft for high pressure pump of common-rail fuel injection system of internal combustion engine, has cam comprising sliding friction coefficient, which is larger than detention friction coefficient of roller opposite to roller shoe |
| 02/02/2012 | CA2803208A1 Downhole pump with a pressure sequencing valve |
| 02/01/2012 | CN102341631A Solenoid valve apparatus |
| 02/01/2012 | CN101718264B 液气手动泵 Liquid-gas hand pump |
| 01/25/2012 | CN102330649A Plunger water pump and liquid control system thereof |
| 01/25/2012 | CN102330648A Boosting pump and reverse osmosis system using same |
| 01/25/2012 | CN101435418B High-speed oil pump of manual tube cutting machine |
| 01/19/2012 | DE112008002868T5 Ventilbaugruppe Valve assembly |
| 01/19/2012 | DE102010031443A1 High pressure pump for fuel injector of internal combustion engine, has pump element, where spring element is designed as compression spring supported at pump piston or at plunger |
| 01/18/2012 | EP2406494A1 Tappet |
| 01/18/2012 | CN202117873U Four-plunger manual pump |
| 01/18/2012 | CN202117872U Difunctional plunger pump |
| 01/18/2012 | CN101713390B 热熔胶流体压力活塞泵 Hot melt adhesive fluid pressure piston pump |
| 01/17/2012 | US8096789 Simplified cleaning and filling device with a piston |
| 01/12/2012 | US20120006857 Pumping device of fluid container and press button |
| 01/11/2012 | EP2405138A2 Pumping device |
| 01/11/2012 | EP1384513B1 Droplets forming method and device for discharging constant-volume droplets |
| 01/11/2012 | CN202108681U High pressure water producing device for water jet cutting machine |
| 01/11/2012 | CN102312807A Liquid chromatograph and infusion pump thereof |
| 01/05/2012 | WO2012002141A1 Reciprocating pump |
| 01/05/2012 | WO2012000067A1 Pneumatic pump for fluids and gases |
| 01/05/2012 | WO2011100430A3 Human-powered irrigation pump |
| 01/04/2012 | EP2401500A1 Pressurized-gas powered compressor and system comprising same |
| 01/04/2012 | CN102305205A Manually-operated dual-fluid grouting pump for mining |
| 01/04/2012 | CN102305202A Manual hydraulic pump |
| 01/03/2012 | US8087904 Hybrid hydraulic-electric RAM pumping unit with downstroke energy recovery |
| 01/03/2012 | CA2691126C Devices and methods for utilizing pressure variations as an energy source |
| 12/29/2011 | WO2011094694A3 Drywall mud pump with improved handle, clamp, or improved foot valve |
| 12/29/2011 | WO2011012696A3 Device and method to deliver fluid products and relative method |
| 12/28/2011 | CN202091137U 一种往复式真空液压推缸 A reciprocating vacuum hydraulic cylinders push |
| 12/28/2011 | CN1922401B 压电泵驱动电路和使用该驱动电路的冷却系统 The piezoelectric pump drive circuit and the driver circuit using a cooling system |
| 12/28/2011 | CN102297109A 一种脚踏车式抽水机 One kind of bicycle-type pumps |
| 12/28/2011 | CN102297108A 用于流体精确比例混合的液压驱动双联活塞泵 Hydraulic fluid for accurate proportioning drive double-piston pump |
| 12/28/2011 | CN101327868B 用于肥皂分配器泵活塞的拼接凸缘 Stitching for soap dispenser pump piston flange |
| 12/22/2011 | US20110308248 Pressurized-gas powered compressor and system comprising same |
| 12/21/2011 | EP1483510B1 Fluid supply device |
| 12/21/2011 | CN202083348U 一种同轴度检测系统及混凝土泵送系统 A coaxial detection systems and concrete pumping systems |
| 12/21/2011 | CN202082059U 二氧化碳注入泵装置 CO2 injection pump device |
| 12/21/2011 | CN102287350A 多用高效气压液体泵 Efficient multi-pressure liquid pump |
| 12/15/2011 | WO2011114285A3 Micropump |
| 12/15/2011 | WO2011105697A3 Dialyzing fluid pump, and hemodialysis apparatus having same |
| 12/14/2011 | CN101657642B 活塞泵 Piston pump |
| 12/08/2011 | WO2011102706A3 Hydraulic wrench for controlled tightening with manual and autonomous actuation |
| 12/08/2011 | WO2011010198A3 Fluid delivery system comprising a fluid pumping device and a drive system |
| 12/07/2011 | CN202065141U 手动液压泵中的活塞驱动装置 Manual hydraulic piston drive means |
| 12/07/2011 | CN202065140U 真空抽 Vacuum pumping |
| 12/07/2011 | CN102269145A 无电抽水泵 No electric pumps |
| 12/01/2011 | WO2011150099A2 A hydraulically actuated reciprocating pump |
| 12/01/2011 | DE102010022318A1 Rollenstößel Roller plunger |
| 12/01/2011 | DE102006000832B4 Radialkolbenpumpe mit Fördermengenregelung Radial piston pump with capacity control |
| 12/01/2011 | CA2800603A1 A hydraulically actuated reciprocating pump |
| 11/30/2011 | CN202056015U 混凝土输送泵输送机构 Concrete pump delivery mechanism |
| 11/30/2011 | CN202056014U Portable water pump |
| 11/30/2011 | CN102265034A 具有两个泵单元的泵装置、系统、用途和方法 Pump device having two pump units, systems, uses and methods |
| 11/30/2011 | CN102261304A 摇臂式海洋波浪驱动活塞泵 Rocker ocean waves driven piston pumps |
| 11/24/2011 | WO2011012692A3 Device and method to deliver fluid products |
| 11/23/2011 | CN202047958U Piston type high-pressure delivery pump |
| 11/23/2011 | CN202047957U Hydraulic two-cylinder single-acting reciprocating pump driving system adopting turning valve to change direction |
| 11/23/2011 | CN202047956U Hydraulic direct drive vertical type multi-cylinder slurry pump |
| 11/23/2011 | CN102257274A Motor-pump assembly |
| 11/22/2011 | CA2540721C Eccentric drive mechanism for volumetric pumps or motors |
| 11/17/2011 | WO2011059269A3 Air suction pump and method for vacuum sealing vinyl bag using same |
| 11/16/2011 | EP2386028A1 Bellows plungers having one or more helically extending features, pumps including such bellows plungers and related methods |
| 11/16/2011 | CN202040040U Hand-operated hydraulic pump |
| 11/16/2011 | CN202040039U Single-acting hydraulic driving reciprocating plunger pump |
| 11/16/2011 | CN202040038U Double-acting hydraulic driving reciprocating plunger pump |
| 11/16/2011 | CN101389409B Pumping device |
| 11/15/2011 | US8057197 Transparent valve body for dense phase pump |
| 11/10/2011 | WO2011140089A2 Double-acting subterranean pump |
| 11/10/2011 | WO2011139166A1 System and process for equalization of pressure of a process flow stream across a valve |
| 11/10/2011 | WO2011138070A1 Microfluidic component, in particular a peristaltic micropump, and method for producing same |
| 11/10/2011 | WO2011027294A3 Power multiplier system with levers |
| 11/10/2011 | WO2011026944A9 Electromotive hydraulic drive, and method for providing a defined hydraulic pressure and/or volume |
| 11/10/2011 | DE102010028598A1 Exzenterlager Eccentric |
| 11/10/2011 | DE102010028594A1 Exzenterlager Eccentric |
| 11/10/2011 | DE102010028584A1 Exzenterlager Eccentric |
| 11/10/2011 | DE102010028581A1 Exzenterlager Eccentric |
| 11/10/2011 | DE102010019982A1 Rollenstößel Roller plunger |
| 11/09/2011 | CN202031797U Hydraulic piston pump for slurry transmission |
| 11/09/2011 | CN202031796U Manual sink-float fishing net water injection and suction pump |
| 11/09/2011 | CN202031795U Small hole water pumping device |
| 11/09/2011 | CN202031794U Withdrawal device |
| 11/09/2011 | CN102239331A Common rail high pressure pump |
| 11/09/2011 | CN102235279A Primer bulb |
| 11/03/2011 | WO2011049330A3 Bubble-generating pump |
| 11/03/2011 | WO2011046352A3 Manual hand pump having a sealing function |
| 11/03/2011 | DE19546299B4 Doppelkolbenpumpe Double piston pump |
| 11/03/2011 | DE102007039072B4 Kolbenpumpe, insbesondere Spülpumpe Piston pump, especially irrigation pump |
| 11/02/2011 | EP2382369A2 Pump for pumping hydraulic well control fluid into a production flowline |
| 11/02/2011 | CN202023712U Constant-power adjustable double-liquid stepless matching synchronous injection pump |
| 11/02/2011 | CN202023711U Hand reciprocating type pumping primer of direct-connection floating valve |
| 11/02/2011 | CN102230457A Drive circuit for piezoelectric pump and cooling system that uses this drive circuit |
| 11/02/2011 | CN101655079B Double-faced guide plate stepless variable four-piston high-pressure pump |
| 11/01/2011 | US8047814 Chemical liquid supplying apparatus |
| 10/26/2011 | EP2381105A1 Slurry pump |