| Patents for F01C 20 - Control of, monitoring of, or safety arrangements for, machines or engines (729) |
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| 10/21/2010 | US20100266435 Gerotor Apparatus for a Quasi-Isothermal Brayton Cycle Engine |
| 10/21/2010 | DE202010010622U1 Drehkolbenkraftmaschine mit Ventilsteuerung Rotary piston engine with valve control |
| 10/14/2010 | WO2010116667A1 Fluid machine, and refrigerant circuit and waste heat utilization device using the fluid machine |
| 10/13/2010 | EP2238352A2 Progressive cavity apparatus with transducer and methods of forming and use |
| 09/29/2010 | EP2232015A1 A gas driven rotation motor, a tool provided with a gas driven rotation motor and a method for regulating the rotation speed of a gas driven rotation motor |
| 09/29/2010 | CN1922388B Method and means for controlling a flow through an expander |
| 09/16/2010 | US20100233000 Leakage loss flow control and associated media flow delivery assembly |
| 09/14/2010 | US7793636 Apparatus adapted to perform as compressor, motor, pump, and internal combustion engine |
| 09/10/2010 | WO2010010094A3 Piston engine |
| 08/19/2010 | DE102007050972B4 Gasbetriebener Lamellenmotor Gas vane motor |
| 08/18/2010 | CN201554499U Pneumatic motor |
| 08/05/2010 | US20100192576 Device for adjusting the stroke volume of hydraulic piston machines |
| 08/04/2010 | EP2213906A2 A gear and a fluid machine with a pair of gears |
| 08/04/2010 | EP2212521A1 Sliding vane pump |
| 07/01/2010 | US20100166588 Vane pump with rotating cam ring and increased under vane pressure |
| 07/01/2010 | US20100162706 Drive for rotating structure |
| 06/10/2010 | WO2009088827A3 Progressive cavity apparatus with transducer and methods of forming and use |
| 05/18/2010 | US7717690 Gear pump |
| 04/27/2010 | CA2573769C Concentric internal combustion rotary engine |
| 04/07/2010 | CN101002004B Volume type expansion machine and fluid machine |
| 04/01/2010 | US20100080721 Rotary fluid device with multi-level phase shift control |
| 03/25/2010 | US20100071389 Method and apparatus for highly efficient compact vapor compression cooling |
| 03/16/2010 | US7677863 Overspeed safety device for a rotation motor |
| 03/09/2010 | US7674100 Pump with conveying chamber formed in outer rotor surface |
| 03/09/2010 | US7674097 Rotary expander |
| 03/04/2010 | US20100054977 Variable displacement pump |
| 02/18/2010 | WO2010017778A1 Rocking-valve rotary-cylinder type capacity-variable mechanism and rotary engine associated |
| 02/10/2010 | CN100588819C Vane rotary expansion engine |
| 01/26/2010 | US7650871 Rotary compressor and expander, and rotary engine using the same |
| 12/30/2009 | CN100575669C Rotary type expansion machine |
| 12/17/2009 | US20090311119 Screw Compressor Capacity Control |
| 12/16/2009 | EP2133512A1 Two-stage rotary type expander, expander-integrated compressor, and refrigeration cycle device |
| 11/26/2009 | WO2009142014A1 Fluid machine and refrigeration cycle device |
| 11/26/2009 | WO2009141993A1 Two-stage rotary expander, expander-integrated compressor, and refrigeration cycle device |
| 10/01/2009 | WO2009119003A1 Refrigerating device and expander |
| 09/17/2009 | WO2009094596A3 Compressed air engine and power train system |
| 08/19/2009 | EP2090746A1 Freezing apparatus, and expander |
| 08/12/2009 | CN101506471A Rotary expander |
| 08/06/2009 | DE102008008038A1 Control unit for quantity modification of air mixture quantity as load control in rotary piston machine formed as internal combustion engine, has crosshead of piston carriers, where crosshead has inlet valve circulated with piston carriers |
| 07/30/2009 | WO2009094596A2 Compressed air engine and power train system |
| 07/30/2009 | DE102004023370B4 Rotationskolbenmotor Rotary piston engine |
| 07/16/2009 | CA2711195A1 Progressive cavity apparatus with transducer and methods of forming and use |
| 07/02/2009 | WO2009082324A1 A gas driven rotation motor, a tool provided with a gas driven rotation motor and a method for regulating the rotation speed of a gas driven rotation motor |
| 06/30/2009 | US7553134 Switch valve structure of fluid machine |
| 06/18/2009 | US20090155111 Rotary-type fluid machine and refrigeration cycle apparatus |
| 06/18/2009 | US20090155110 Scroll compressor with device to limit orbit radius |
| 06/04/2009 | US20090142201 Hydraulic flow control system and method |
| 05/27/2009 | CN201246187Y Valve swinging rotary cylinder type positive-displacement mechanism and rotary engine thereof |
| 04/30/2009 | US20090110577 Variable delivery vane oil pump, in particular for oil |
| 04/29/2009 | EP1723310B1 Method and means for controlling a flow through an expander |
| 04/23/2009 | WO2009052105A1 Sliding vane pump |
| 04/15/2009 | CN100478544C Rotor engine |
| 04/14/2009 | CA2355843C Lever-mechanism motor or pump |
| 02/11/2009 | EP2021583A1 Management of gaseous flows for rotary engines |
| 02/11/2009 | CN100460629C Expansion machine |
| 01/27/2009 | US7481631 Variable capacity rotary compressor |
| 01/22/2009 | US20090022612 Variable Capacity Vane Pump With Dual Control Chambers |
| 01/14/2009 | CN100451296C Switch valve structure of fluid machine |
| 01/08/2009 | WO2009004637A1 Cat and mouse type machine with multi-purpose ports |
| 01/07/2009 | CN101338687A Shaking valve rotary cylinder type variable displacement device and its rotary engine |
| 12/18/2008 | US20080310987 Rotary piston machine |
| 12/17/2008 | EP1851414B1 A method and apparatus for improving the operation of positive displacement expanders |
| 11/19/2008 | EP1991760A1 Rotary volumetric vane machine |
| 10/23/2008 | DE102004033862B4 Maschine, die als Expansions- und Kompressionsmaschine dient Machine, which serves as the expansion and compression machine |
| 10/07/2008 | US7431007 Apparatus adapted to perform as compressor, motor, pump and internal combustion engine |
| 09/12/2008 | WO2008108062A1 Two-stage rotary type expander, expander-integrated compressor, and refrigeration cycle device |
| 09/12/2008 | WO2008107547A1 Rotary motor with deformable rhomb |
| 09/02/2008 | US7419369 Displacement type expansion machine and fluid machine |
| 08/28/2008 | US20080202116 Method and Apparatus for Improving the Operation of Positive Displacement Expanders |
| 08/13/2008 | CN100410493C Apparatus adapted to perform as compressor, motor, pump and internal combustion engine |
| 08/06/2008 | EP1953337A1 Expander and heat pump using the same |
| 07/03/2008 | US20080159897 Reciprocating Component-Free Kinematic Motion Apparatus for Transforming Pressure Variations of a Fluid Operating in Cyclically Variable Volume Toroidal Chambers into a Mechanical Work on a Rotary Axis and Engine Including Said Apparatus |
| 06/19/2008 | WO2008072575A1 Freezing apparatus, and expander |
| 05/28/2008 | EP1497541B1 Four-stroke rotary internal-combustion engine |
| 05/08/2008 | US20080107554 Pump Control Using Overpressure Source |
| 04/17/2008 | WO2008044456A1 Rotary expander |
| 04/16/2008 | EP1910645A1 Compressed air micromotor |
| 03/25/2008 | US7347675 Vane rotary expansion engine |
| 03/25/2008 | US7347673 Fluid machine served as expansion device and compression device |
| 03/20/2008 | WO2007147186A3 Heat pump solar installation |
| 03/18/2008 | US7344361 Variable-delivery vane pump |
| 03/12/2008 | CN101142374A Pulsed fluid supply to positive displacement expander |
| 03/11/2008 | US7341437 Capacity-changing unit of orbiting vane compressor |
| 02/27/2008 | EP1891299A1 Rotary oscillating piston machine and method |
| 02/07/2008 | US20080031756 Capacity Variable Type Twin Rotary Compressor And Driving Method Thereof And Airconditioner With This and Driving Method Thereof |
| 01/31/2008 | US20080025836 Overspeed Safety Device for a Rotation Motor |
| 01/23/2008 | EP1880170A1 Two-pole magnet wheel increment position sensing in an actuator |
| 12/20/2007 | US20070292292 Vane cell pump |
| 12/20/2007 | US20070292291 Vane cell pump |
| 12/20/2007 | DE102005014129B4 Abwärme eines Verbrennungsmotors nutzendes System Waste heat from an internal combustion engine using system |
| 12/06/2007 | US20070280842 Variable Displacement Pump |
| 11/22/2007 | WO2007132070A1 Management of gaseous flows for rotary engines |
| 11/22/2007 | DE102006023388A1 Ventilsteuereinrichtung für eine als Brennkraftmaschine ausgebildete Umlaufkolbenmaschine Valve control device for an internal combustion engine designed as a rotary piston machine |
| 11/14/2007 | CN100348837C Volume expander and fluid machine |
| 11/07/2007 | EP1851414A1 A method and apparatus for improving the operation of positive displacement expanders |
| 11/01/2007 | US20070253851 Leakage Loss Flow Control |
| 10/03/2007 | CN100340826C System utilizing waste heat of internal combustion engine |
| 09/27/2007 | US20070224067 Variable displacement sliding vane pump |
| 09/27/2007 | US20070224066 Variable displacement vane pump |
| 09/18/2007 | US7270521 Variable capacity rotary compressor with pressure adjustment device |