| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 02/19/2014 | CN203441743U Lateral plate floating variable-speed pump for loader |
| 02/19/2014 | CN203441742U Gear oil pump preventing backflow |
| 02/19/2014 | CN203441741U Refrigerant pump |
| 02/19/2014 | CN203441740U Gearbox oil pump structure |
| 02/19/2014 | CN103597210A Internal gear pump |
| 02/19/2014 | CN103591019A Electrically driven dual pump |
| 02/19/2014 | CN103591017A Middle and high-pressure radial pump with ballhead plungers |
| 02/19/2014 | CN101900109B Hydraulic machine |
| 02/18/2014 | US8651844 Hybrid pump for delivering a liquid pump medium |
| 02/18/2014 | US8651843 High efficiency fixed displacement vane pump |
| 02/18/2014 | US8651841 Rotary compressor with improved connection |
| 02/18/2014 | US8651833 Combined gas and liquid pump |
| 02/18/2014 | US8651825 Variable capacity vane pump with dual control chambers |
| 02/13/2014 | WO2014024701A1 Internal gear pump |
| 02/13/2014 | WO2013092966A3 Internal-gear pump |
| 02/13/2014 | DE19815832B4 Flügelzellenpumpe Vane pump |
| 02/13/2014 | DE102012214356A1 Innenzahnradpumpe Internal gear pump |
| 02/13/2014 | DE102012214243A1 Internal gear pump for use in e.g. fuel injection system of motor vehicle, has pivot axis arranged such that radially outward force produces torque that acts opposite to force application device in transition region |
| 02/13/2014 | DE102012214229A1 Zahnradmaschine mit Kraftsensor in Form einer Piezofolie Gear machine with force sensor in the form of a piezo film |
| 02/13/2014 | DE102004016440B4 Fördereinrichtung Conveyor |
| 02/12/2014 | EP2696075A2 Gear wheel machine with force sensor in the form of a piezo film |
| 02/12/2014 | CN203430771U Oil metering pump with one inlet hole and multiple outlet holes |
| 02/12/2014 | CN203430770U Hydraulic gear pump |
| 02/12/2014 | CN203430769U 计量泵 Metering pumps |
| 02/12/2014 | CN103582760A Georotor hydraulic device with capacity control valve arranged within shaft |
| 02/12/2014 | CN103573618A Variable-displacement power steering pump for cars |
| 02/12/2014 | CN103573617A 齿轮泵装置 Gear pump device |
| 02/12/2014 | CN102678289B Spiraster-type rotation device, engine, pneumatic motor, and compressor |
| 02/12/2014 | CN102536802B Power steering pump |
| 02/12/2014 | CN101316785B Methods and apparatus for pumping and dispensing |
| 02/11/2014 | US8647087 Cooling system for gerotor motor |
| 02/11/2014 | US8647085 Scroll fluid machine having a communication passage between an inner periphery of lip seal and an outer periphery of drive shaft or ring |
| 02/11/2014 | US8647084 Cylinder dividing mechanism of a pneumatic tool |
| 02/06/2014 | WO2014019687A2 Method for operating a multi-phase pump and apparatus therefor |
| 02/06/2014 | US20140034778 Independent blade control system with rotary blade actuator |
| 02/06/2014 | DE102012213775A1 Innenzahnradpumpe Internal gear pump |
| 02/06/2014 | DE102012213771A1 Innenzahnradpumpe Internal gear pump |
| 02/06/2014 | DE102012015064A1 Verfahren zum Betreiben einer Multiphasenpumpe und Vorrichtung dazu A method of operating a multi-phase pump and apparatus to |
| 02/06/2014 | CA2822038A1 Pumping facility for a deep well |
| 02/05/2014 | EP2692636A1 Independent blade control system with hydraulic cyclic control |
| 02/05/2014 | CN203420879U Oil and gas multiphase pump |
| 02/05/2014 | CN103562552A Internal gear pump |
| 02/05/2014 | CN101581301B Vane pump/motor |
| 02/04/2014 | US8641393 Thermally compensated scroll machine |
| 02/04/2014 | US8641392 Scroll compressor bodies with scroll tip seals and extended thrust region |
| 02/03/2014 | DE202012010401U1 Drehkolbenpumpe mit Direktantrieb Rotary pump with direct drive |
| 01/30/2014 | US20140030131 Internal gear pumps for a hydraulic vehicle braking system |
| 01/30/2014 | DE102013105911A1 Vacuum pump such as mono vane pump used in motor car, has friction portions that are arranged in friction surfaces and are formed of uncoated aluminum material comprising silicon content and hard material particles |
| 01/30/2014 | DE102012213236A1 Rotary piston pump, particularly gear pump, has housing with conveying element formed as gear wheel, where conveying element is mounted in annular bearing in rotary manner |
| 01/29/2014 | EP2690252A1 Pompe à engrenages internes trochoïdes |
| 01/29/2014 | EP2688608A2 Displaying a barcode on a display of an infusion pump |
| 01/29/2014 | CN203412758U Blades of direct-current electric refueling pump |
| 01/29/2014 | CN203412754U Oscillating slider unit pump |
| 01/29/2014 | CN203412753U Gear pump device |
| 01/29/2014 | CN203412752U Oil pumping device of oil pump |
| 01/29/2014 | CN103547807A Pump, pump system and method for pumping a medium |
| 01/29/2014 | CN103547806A A gerotor pump, a gerotor motor and a gerotor transmission system |
| 01/29/2014 | CN103541895A Fluid machine with rotary wheel double-vortex mechanism |
| 01/29/2014 | CN103541894A Variable displacement vane pump with enhanced discharge port |
| 01/29/2014 | CN103541893A Inner gearing shaft head cycloid gear pump |
| 01/29/2014 | CN103541892A Spherical compressor |
| 01/29/2014 | CN102996437B Heavy truck motor truck turning oil pump |
| 01/28/2014 | US8636488 Hydraulic motor or pump |
| 01/28/2014 | US8636486 Accurate powder metal component, assembly and method |
| 01/28/2014 | US8636485 Electroformed stator tube for a progressing cavity apparatus |
| 01/23/2014 | WO2013018102A3 Vane assembly with an integrated spring element |
| 01/23/2014 | WO2013011535A3 Double-helical gear rotary positive displacement pump |
| 01/23/2014 | DE102012212829A1 Gear machine for use as e.g. pump in internal combustion engine, has pressure sensor that is connected to evaluation unit to determine rotational speed of gear wheels, based on variation of pressure signal |
| 01/23/2014 | DE102012212827A1 Gear wheel machine e.g. pump or motor, has two gear wheels combining with one another, and contact element comprising piston that is accommodated in pressure-tight manner and linear movable with respect to bore of housing |
| 01/22/2014 | EP2687725A2 Oil pump with variable capacity |
| 01/22/2014 | EP2686555A1 Plastic pump housing and manufacture thereof |
| 01/22/2014 | CN203404077U 油泵 Pump |
| 01/22/2014 | CN203404069U Direct insertion type gear pump special for external oil seal type power takeoff |
| 01/22/2014 | CN203404068U Hydraulic gear pump |
| 01/22/2014 | CN203404067U Vortex type self-absorption electric pump |
| 01/22/2014 | CN103534485A Fluid device with pressurized roll pockets |
| 01/22/2014 | CN103534434A Submersible progressive cavity pump driver |
| 01/22/2014 | CN103527475A Stator magnetic pole type electric roller vane pump |
| 01/22/2014 | CN103527474A Fuel oil delivery pump with pump driving gear driven through pins |
| 01/22/2014 | CN103527473A 泵装置 Pump device |
| 01/22/2014 | CN103527472A 油泵 Pump |
| 01/22/2014 | CN103527471A High-pressure gear pump with inlaid nut |
| 01/22/2014 | CN103527470A External gear pump with auriculate unload groove |
| 01/22/2014 | CN103527469A Energy-saving pump body |
| 01/22/2014 | CN103527252A Vane type energy conversion device |
| 01/21/2014 | US8632324 Optimized helix angle rotors for roots-style supercharger |
| 01/21/2014 | CA2671017C Principle and system of sealing the piston of rotary piston engines |
| 01/21/2014 | CA2588811C Variable capacity gerotor pump |
| 01/21/2014 | CA2565179C Vane pump using line pressure to directly regulate displacement |
| 01/16/2014 | WO2014008886A1 Rotary piston machine, internal combustion engine and heat and power cogeneration plant with internal combustion engine |
| 01/16/2014 | DE19810318B4 Hydraulikmaschine Hydraulic machine |
| 01/16/2014 | DE102011078035B4 Flügelzellenpumpe Vane pump |
| 01/15/2014 | EP2683906A2 Bearing / gearing section for a pdm rotor / stator |
| 01/15/2014 | CN203394756U Novel gear pump |
| 01/15/2014 | CN103511251A Displacement pump |
| 01/15/2014 | CN103511250A 双内齿轮泵 Dual internal gear pump |
| 01/15/2014 | CN103511249A Immersed side-wall-mounted single-suction two-screw pump |
| 01/15/2014 | CN103511248A One-flow-direction reversible cycloid rotor pump |
| 01/15/2014 | CN103511247A Internal gearing rotor pump with rotary oil distribution disc |
| 01/14/2014 | US8628316 Compressor having capacity modulation system |