| Patents for F04B 7 - Piston machines or pumps characterised by having positively-driven valving (2,226) |
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| 02/19/2015 | WO2015022088A1 Two-cylinder thick matter pump having a transfer tube |
| 02/19/2015 | US20150050163 Hydraulic machine, in particular hydraulic pressure exchanger |
| 02/17/2015 | US8957674 Pump with rotor position measurement system |
| 02/17/2015 | CA2669637C Micropump |
| 02/12/2015 | US20150044066 Variable capacity reciprocating compressor |
| 02/12/2015 | DE102007016550B4 Hydrostatische Retarderpumpe und hydrostatischer Motor Hydrostatic retarder and hydrostatic motor |
| 02/04/2015 | CN104334875A 旋转压缩机阀 Rotary compressor valve |
| 01/29/2015 | WO2015011384A1 Rotary-oscillating subassembly and rotary-oscillating volumetric pumping device for volumetrically pumping a fluid |
| 01/29/2015 | WO2015011353A1 Rotary swinging subassembly and device for cointegrated fluidic multiplexing and volumetric pumping of a fluid |
| 01/29/2015 | WO2015011352A1 Rotary-wave sub-assembly for pumping a fluid and rotary-wave pumping device |
| 01/29/2015 | US20150032054 Piston pump and device for feeding and metering a fluid for medical purposes by means of a piston pump |
| 01/27/2015 | US8939063 Hydraulic engine with infinity drive |
| 01/22/2015 | WO2015010117A1 Tri-chamber nutating pump |
| 01/20/2015 | US8936181 Valve accelerating type dispensing pump |
| 01/15/2015 | US20150017039 High-pressure fuel supply pump having an electromagnetically-driven inlet valve |
| 01/15/2015 | US20150017036 Reciprocating subsurface pump |
| 01/13/2015 | US8932269 Disposable pumping system and coupler |
| 01/13/2015 | US8932032 Diaphragm pump and pumping systems |
| 01/08/2015 | US20150007557 Boom driving device |
| 01/07/2015 | EP2820296A1 Valveless reciprocating compressor |
| 01/07/2015 | CN104271947A 活塞泵 Piston pump |
| 12/30/2014 | CA2721425C Programmable device for compressor valve |
| 12/25/2014 | US20140377111 Translo-rotating actuated rotary valves for reciprocating compressors and related methods |
| 12/25/2014 | US20140377082 Semi-commanded valve system applied to compressor and method for modulating the capacity of a compressor provided with a semi-commanded valve system |
| 12/23/2014 | US8915722 Integrated fluid end |
| 12/10/2014 | CN104204517A 活塞泵、用于借助于活塞泵来供应和计量用于医疗目的的流体的装置 A piston pump, by means of a piston pump is used to supply and metering fluids for medical purposes means |
| 12/10/2014 | CN102414445B 包含压力吸收器的正位移泵 Positive displacement pump comprising a pressure absorber |
| 12/10/2014 | CN102301137B 在气体压缩机的进气阀中致动的系统 In the gas compressor in the intake valve actuation system |
| 12/09/2014 | US8905732 Fluid working machine |
| 12/04/2014 | US20140356201 Multiple Port Discharge Manifold Fluid End |
| 11/27/2014 | US20140348676 High pressure pump |
| 11/25/2014 | US8893932 Air assisted severance of viscous fluid stream |
| 11/18/2014 | US8890352 Power generator for extracting energy from a liquid flow |
| 11/06/2014 | US20140328695 Hydraulic Pump |
| 10/23/2014 | US20140314595 Reservoir Vent and Thermal Stabilization Orifice |
| 10/23/2014 | US20140314594 Pump |
| 10/09/2014 | US20140301873 Condensate separator device for a compressor arrangement for the production of compressed air |
| 09/25/2014 | US20140286804 Air compressor having buffering compartment |
| 09/23/2014 | CA2728185C Fluid working machines and methods |
| 09/18/2014 | WO2014139529A1 Rotary valve assembly |
| 09/18/2014 | US20140271294 Pump seal with thermal retracting actuator |
| 09/12/2014 | WO2014135883A2 A pump |
| 09/09/2014 | US8827657 Concrete pump system and method |
| 09/04/2014 | WO2014132089A1 Valve unit a fluid working machine comprising a valve unit |
| 09/04/2014 | US20140248159 Methods and systems for dosing control in an automated fluid delivery system |
| 08/27/2014 | EP2770204A1 Hydraulic motor, method for starting hyraulic motor and power generating apparatus of renewable energy type |
| 08/27/2014 | EP2770203A1 Radial piston fluid machine and power generating apparatus of renewable energy type |
| 08/27/2014 | EP2770202A1 Control valve, assembly method of control valve, and power generating apparatus of renewable energy type |
| 08/27/2014 | EP2770201A1 Valve cylinder interface, assembling method for valve cylinder interface and power generating apparatus of renewable energy type |
| 08/26/2014 | US8814190 Compressed air supply assembly and control method |
| 08/26/2014 | US8813922 Front fork |
| 08/21/2014 | WO2014124508A1 Operational status checking system of alternative compressor valve and method for checking operational status of alternative compressor valve |
| 08/21/2014 | WO2014124507A1 Method for actuating valve and system for actuating valve for multi-suction alternative compressor |
| 08/14/2014 | WO2014122665A1 Fan-drive control for open circuit variable displacement pump |
| 08/13/2014 | EP2764244A1 Fluid dispensing system |
| 08/06/2014 | EP2761179A1 Fluid discharging system |
| 08/05/2014 | US8794936 High-pressure fuel supply pump and fuel supply system |
| 08/05/2014 | CA2578461C Nutating pump with reduced pulsations in output flow |
| 07/30/2014 | EP2759703A1 Pump valve |
| 07/24/2014 | US20140205481 Air Assisted Severance of Viscous Fluid Stream |
| 07/17/2014 | WO2014110139A1 Fuel pump for an internal combustion engine |
| 07/17/2014 | US20140196804 Hydraulic control arrangement |
| 07/10/2014 | US20140190156 Passive and active suspension with optimization of energy usage |
| 06/26/2014 | WO2014095175A1 Pump unit |
| 06/26/2014 | WO2013116727A3 Self-cleaning disc valve for piston pump |
| 06/26/2014 | US20140178225 Tubing inserted balance pump |
| 06/26/2014 | US20140178210 Tubing inserted balance pump with internal fluid passageway |
| 06/25/2014 | EP2746566A1 Pump Unit |
| 06/24/2014 | US8757583 Fluid-working machine |
| 06/19/2014 | US20140170006 Reciprocating compressor with vapor injection system |
| 06/19/2014 | US20140169998 Sealed compressor |
| 06/12/2014 | US20140158715 Vented check valves, pumps and refill units with vented check valves |
| 06/10/2014 | US8747083 Air compressor having enlarged compartment for receiving pressurized air |
| 06/05/2014 | US20140150415 Energy Recovery Hydraulic System |
| 06/04/2014 | CN103842650A Fluid dispensing system |
| 05/29/2014 | US20140147293 Hydraulic machine with electronically controlled valves |
| 05/28/2014 | CN103827486A 流体排放系统 Fluid discharge system |
| 05/15/2014 | DE102009036663B4 Innenhochdruckumformwerkzeug und ein Verfahren zum Betreiben dessen Hydroforming and a method for operating the |
| 05/14/2014 | EP2729701A1 Liquid dispensing system |
| 05/14/2014 | CN102124222B 流体工作机器及方法 Fluid working machine and method |
| 05/08/2014 | US20140127061 Piston-type compressor |
| 05/08/2014 | US20140127037 Fluid supply apparatus |
| 05/01/2014 | US20140119951 Failure diagnosis apparatus of brake system and failure diagnosis method of brake system |
| 04/22/2014 | US8702405 Twisting translational displacement pump cartridge |
| 04/17/2014 | DE102012218585A1 Piston pump for conveying pressurizing agent in hydraulic braking system, has pump housing with pump components, such as pump piston received in sealing ring, which takes function of guide strip, where sealing ring is received in retainer |
| 04/16/2014 | EP2718569A1 Device for metering lubricants into the machining of metal |
| 04/15/2014 | US8696336 Miniature pump device with an anti-free flow valve |
| 04/10/2014 | US20140099215 High pressure fuel supply pump with electromagnetic suction valve |
| 04/09/2014 | EP2715133A2 Inlet valve for a fluid pump and assembly method for an inlet valve for a fluid pump |
| 04/09/2014 | CN103717895A Ceramic plunger with at least one control element |
| 04/09/2014 | CN103717894A Inlet valve for a fluid pump and assembly method for an inlet valve for a fluid pump |
| 04/03/2014 | WO2014048418A1 Method and device for actuating an electrically commutated fluid working machine |
| 04/03/2014 | US20140093410 Multi-purpose large capacity pump |
| 04/03/2014 | DE19726239B4 Hydrostatisches Antriebssystem mit einer Pumpe und einer Mehrzahl von daran angeschlossenen Verbrauchern Hydrostatic drive system having a pump and a plurality of consumers connected thereto |
| 04/01/2014 | US8684710 Distributor assembly for two-speed gerotor device |
| 03/20/2014 | WO2014040769A1 Device for the drive control of a two-cylinder thick matter pump |
| 03/20/2014 | US20140079580 Pump Unit For Water Jet Surgery |
| 03/20/2014 | US20140079573 Pump for transfer of liquids containing suspended solids |
| 03/19/2014 | CN103649534A Liquid dispensing system |
| 03/05/2014 | CN102052274B Integrated valve assigning plunger pump |