| Patents for F03C 2 - Rotary-piston engines (2,448) |
|---|
| 02/26/2014 | EP2699821A1 Rotors formed using involute curves |
| 02/25/2014 | US8656888 Rotary internal combustion engine with variable volumetric compression ratio |
| 02/19/2014 | CN101900109B Hydraulic machine |
| 02/18/2014 | US8651844 Hybrid pump for delivering a liquid pump medium |
| 02/11/2014 | US8647089 Dual rotor pump |
| 02/11/2014 | US8647087 Cooling system for gerotor motor |
| 02/11/2014 | US8647084 Cylinder dividing mechanism of a pneumatic tool |
| 02/05/2014 | CN101581301B Vane pump/motor |
| 02/04/2014 | US8641393 Thermally compensated scroll machine |
| 01/28/2014 | US8636487 Dual stage pump having intermittent mid-shift load supports |
| 01/28/2014 | US8636485 Electroformed stator tube for a progressing cavity apparatus |
| 01/23/2014 | WO2014014985A2 Freewheel hydraulic motor |
| 01/22/2014 | CN103527253A Energy conversion device |
| 01/22/2014 | CN103527252A Vane type energy conversion device |
| 01/22/2014 | CN103527072A Mining guide rail type emulsified liquid hydraulic drilling rig |
| 01/21/2014 | US8632323 Internal gear pump rotor, and internal gear pump using the rotor |
| 01/16/2014 | DE19810318B4 Hydraulikmaschine Hydraulic machine |
| 01/16/2014 | DE102004008313B4 Kreiskolbenbrennkraftmaschine mit einer verbesserten Innendichtung Rotary piston internal combustion engine with an improved inner seal |
| 01/15/2014 | CN103511175A Fire-fighting motor |
| 01/14/2014 | US8628314 Scroll compressor including a communication section between the suction chamber and the supply flow path |
| 01/14/2014 | US8628312 Compressor including anti-rotation washer and method of assembly |
| 01/08/2014 | CN203384045U Enclosed cavity-volume circular increasing /decreasing device with double rotors |
| 01/08/2014 | CN203383977U Balance disk of hydraulic motor |
| 01/07/2014 | US8622725 Mechanical compression ratio changing screw compressor |
| 01/07/2014 | US8622723 Scroll compressor |
| 12/24/2013 | US8613610 Variable displacement pump |
| 12/18/2013 | CN203348001U Bidirectionally-balanced medium/high-pressure gear motor floating sealing ring and gear motor |
| 12/18/2013 | CN102678182B Star-spinning type rotation device with double sun wheels, engine and fluid machine |
| 12/12/2013 | DE102012209622A1 Zahnradmaschine mit hydrodynamisch und hydrostatisch gelagertem Lagerzapfen Gear machine with hydrodynamic and hydrostatic bearing journals stored |
| 12/10/2013 | US8602760 Vane compressor |
| 12/10/2013 | US8602759 Screw-type vacuum pump having overpressure openings |
| 12/04/2013 | CN103423506A Multi-rotation hydraulic valve |
| 12/04/2013 | CN103423152A Automotive hydraulic vane pump motor and switching control hydraulic system thereof |
| 12/04/2013 | CN103423150A Rotor fluid mechanical transfiguration mechanism |
| 12/04/2013 | CN103423079A Ball piston type radial rolling hydraulic motor with multi-row radial balls |
| 12/04/2013 | CN103423078A Single-vane hydraulic motor with radial force compensating structure |
| 12/03/2013 | US8597007 Screw pump rotor and method of reducing slip flow |
| 12/03/2013 | US8597004 Scroll type compressor having an intercommunication path in which a pin member is inserted |
| 11/28/2013 | DE102012208511A1 Als Pumpe, Verdichter oder Motor für pastöses, flüssiges oder gasförmiges Medium arbeitende Drehkolbenmaschine As a pump, compressor or motor for pasty, liquid or gaseous medium working rotary piston engine |
| 11/27/2013 | CN203308653U Hydraulic motor with molybdenum element coating |
| 11/26/2013 | US8591210 Scroll compressor having adjustable spacers |
| 11/19/2013 | US8585384 Rotary pump including inner rotor and outer rotor having different axial size of an axial clearance |
| 11/19/2013 | US8585382 Compressor having capacity modulation assembly |
| 11/19/2013 | US8585381 Scroll type compressor having an intercommunication path in which a pin member is inserted |
| 11/13/2013 | CN101542114B Rotary fluid pressure device with modular multi-speed control mechanism |
| 11/12/2013 | US8579615 Pivoting, hinged arc vane rotary compressor or expander |
| 11/12/2013 | US8579613 Vane pump and vapor leakage check system having the same |
| 11/12/2013 | US8579597 Variable capacity type rotary compressor |
| 11/12/2013 | US8578908 Dual-rotor engine |
| 11/06/2013 | CN203272012U Hydraulic power machine |
| 11/06/2013 | CN102338026B Star rotary fluid motor |
| 11/05/2013 | US8573956 Multiple stage dry pump |
| 10/30/2013 | CN103375330A Flow distributing disc of hexagonal-octagonal type non-circular gear planetary-gear-train hydraulic motor and hydraulic motor |
| 10/30/2013 | CN103373898A Methanol synthesis process and methanol synthesis system |
| 10/29/2013 | US8568117 Powder metal scrolls |
| 10/23/2013 | CN203248311U Novel non-magnetic hydraulic servomotor |
| 10/23/2013 | CN103362731A Valve plate of square and hexagon type non-circular gear planetary gear train hydraulic motor and hydraulic motor |
| 10/23/2013 | CN103362730A Impulse steady flow unit |
| 10/22/2013 | US8562318 Multiphase pump with high compression ratio |
| 10/22/2013 | US8562317 Scroll expansion machine with air flow passage around outer periphery of sealing surface |
| 10/16/2013 | CN203239498U Hydraulic motor connection cover |
| 10/16/2013 | CN103352793A Two-angle-rotor hydraulic motor |
| 10/16/2013 | CN103352792A Two-angle-rotor pneumatic motor |
| 10/15/2013 | US8556922 Motor assembly for a powered surgical instrument |
| 10/15/2013 | US8556609 Geared hydraulic apparatus |
| 10/15/2013 | US8556608 Rotor drive mechanism and pump apparatus including the same |
| 10/15/2013 | US8556606 Water injection type screw fluid machine |
| 10/15/2013 | US8556605 Scroll compressor having a rotation inhibitor |
| 10/15/2013 | US8556603 Progressing cavity pump adapted for pumping of compressible fluids |
| 10/09/2013 | EP2647793A1 Hydraulic motor |
| 10/08/2013 | US8550797 Scroll compressor with improved back pressure force control function |
| 10/01/2013 | US8545200 Variable displacement oil pump |
| 09/19/2013 | WO2012018878A3 Balance plate assembly for a fluid device |
| 09/17/2013 | US8535030 Gerotor hydraulic pump with fluid actuated vanes |
| 09/17/2013 | US8535029 Scroll type compressor having reinforced fixed scroll |
| 09/17/2013 | US8535028 Downhole positive displacement motor |
| 09/12/2013 | WO2012094460A4 Pressure compensation system for an oil-sealed mud motor bearing assembly |
| 09/11/2013 | CN103291535A 流体动力装置 Fluid power equipment |
| 09/11/2013 | CN103291365A Fluid machine and engine with rotating wheel vortex mechanism |
| 09/10/2013 | US8529234 Water injection type screw fluid machine |
| 09/10/2013 | US8529233 Displacement machine with improved support |
| 09/10/2013 | US8529231 Apparatus for cleaning rotation body and vacuum pump having the same |
| 09/03/2013 | US8523546 Cycloid rotor engine |
| 09/03/2013 | US8523544 Three stage scroll vacuum pump |
| 08/27/2013 | US8517706 Non-eccentric engine |
| 08/27/2013 | US8517705 Rotary engine vane apparatus and method of operation therefor |
| 08/27/2013 | US8517703 Compressor including valve assembly |
| 08/27/2013 | US8517702 Rotary compressor with enhanced sealing between mode switching device and chamber thereof |
| 08/21/2013 | CN203146319U Vehicle hydraulic vane pump motor and switching control hydraulic system thereof |
| 08/20/2013 | US8512016 Positive-displacement dry pump |
| 08/20/2013 | US8511277 “Turbomotor” rotary machine with volumetric expansion and variants thereof |
| 08/15/2013 | WO2013116899A1 Electricity generating apparatus |
| 08/13/2013 | US8506270 Variable displacement vane pump |
| 08/13/2013 | US8506269 Low noise type balance shaft module |
| 08/07/2013 | CN203114510U Hydraulic motor |
| 08/06/2013 | US8500423 Frame rotated hydraulic motor with improved parking brake |
| 08/06/2013 | US8500422 Vacuum pump |
| 08/01/2013 | WO2012094460A3 Pressure compensation system for an oil-sealed mud motor bearing assembly |
| 07/30/2013 | US8496457 Metering gear pump with integral flow indicator |
| 07/30/2013 | US8496456 Progressive cavity pump including inner and outer rotors and a wheel gear maintaining an interrelated speed ratio |