| Patents for F01C 20 - Control of, monitoring of, or safety arrangements for, machines or engines (729) |
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| 11/07/2012 | CN202520388U Phase change energy storage low-temperature generating system |
| 10/31/2012 | CN202510166U Air-powered engine controlling device |
| 10/26/2012 | WO2012144308A1 Screw expander |
| 10/09/2012 | US8282369 Variable displacement vane pump with defined cam profile |
| 10/03/2012 | CN102713156A Positive displacement expander and refrigeration cycle device using the positive displacement expander |
| 09/26/2012 | CN102691555A Recovery system with heat accumulator for internal combustion engine exhausting waste heat and control method |
| 09/19/2012 | CN101892865B Control method and control device of triangular flash evaporation circulating power generation system |
| 09/05/2012 | CN202417606U Energy storage and power generation system of reversible single-screw compression expansion machine |
| 09/04/2012 | US8257057 Variable displacement vane pump |
| 08/15/2012 | CN102061943B Cellular pneumatic driving wheel power machine |
| 08/08/2012 | CN102628374A Improved screw rod expansion machine |
| 07/25/2012 | EP2478185A1 Rotary piston steam engine with balanced rotary variable inlet-cut- off valve and secondary expansion without back-pressure on primary expansion |
| 07/25/2012 | CN102606214A Controller for air-powered engine |
| 07/18/2012 | CN102587993A Screw expansion power machine rotation speed control method and system |
| 07/18/2012 | CN102587992A Method and device for controlling output power of screw expansion power machine |
| 07/12/2012 | US20120177519 Enclosed positive displacement mechanism, particularly for fluid machinery, fluid machinery comprising the mechanism and rotating unit for the mechanism |
| 07/11/2012 | CN202325696U 气动马达及其汽缸组 Air motor and cylinder group |
| 07/04/2012 | CN202300535U 一种气马达行程控制机构 One kind of gas motor stroke control mechanism |
| 07/03/2012 | US8210836 Vane cell pump with adjustable output |
| 05/30/2012 | CN202250246U Automatic pneumatic motor reversing device |
| 05/30/2012 | CN102483276A 制冷循环装置 The refrigeration cycle apparatus |
| 05/29/2012 | US8186982 Adjustable rotary pump with reduced wear |
| 05/29/2012 | US8186979 Capacity varying type rotary compressor and refrigeration system having the same |
| 05/09/2012 | CN202215304U Control valve and clockwise and counterclockwise rotating motor |
| 05/02/2012 | CN102439262A Rotary piston steam engine with balanced rotary variable inlet-cut- off valve and secondary expansion without back-pressure on primary expansion |
| 04/19/2012 | US20120093672 Direct control linear variable displacement vane pump |
| 03/28/2012 | EP2432971A1 Synchronising system of at least two hydraulic motors |
| 03/28/2012 | CN102395759A Fluid machine and refrigeration cycle apparatus |
| 03/27/2012 | CA2528017C Rotary engine |
| 02/29/2012 | CN102365422A Fluid machine, and refrigerant circuit and waste heat utilization device using the fluid machine |
| 02/23/2012 | US20120045355 Variable displacement oil pump |
| 02/23/2012 | US20120045354 Air compression device |
| 02/22/2012 | EP1516105B1 Internal gear machine with variable capacity |
| 02/15/2012 | CN102352777A Energy-storage and power-generation system and method of reversible single-screw compression expansion machine |
| 02/08/2012 | EP2415964A1 Fluid machine, and refrigerant circuit and waste heat utilization device using the fluid machine |
| 01/26/2012 | DE102010032104A1 Rotary piston combustion engine for use with valve control for use as internal combustion engine, has stationary housing which has annular hollow cylinder with different sized inner radii |
| 01/18/2012 | CN102322296A Control valve and positively and negatively rotating motor |
| 01/04/2012 | CN101627181B Two-stage rotary type expander, expander-integrated compressor, and refrigeration cycle device |
| 01/04/2012 | CN101014758B Concentric internal combustion rotary engine |
| 12/29/2011 | WO2011161952A1 Refrigeration cycle apparatus |
| 11/29/2011 | CA2464967C Combustion and exhaust heads for fluid turbine engines |
| 11/17/2011 | US20110280757 Rotary machine of the deformable rhombus type comprising an improved transmission mechanism |
| 11/03/2011 | WO2011135779A1 Fluid machine and refrigeration cycle apparatus |
| 11/03/2011 | US20110268596 Fluid device with flexible ring |
| 11/02/2011 | EP2382382A2 Rotary vane engines with movable rotors,and engine systems comprising same |
| 10/27/2011 | US20110259187 Digital hydraulic system |
| 10/05/2011 | CN102207020A Internal combustion engine cooling circulation system |
| 09/21/2011 | CN201982144U 螺杆膨胀动力机转速控制装置 Screw expansion power machine speed control device |
| 09/21/2011 | CN201982143U 螺杆膨胀动力机输出功率的控制系统 Screw expansion power machine output power control system |
| 09/08/2011 | US20110217197 Rotary compressor-expander systems and associated methods of use and manufacture, including two-lobed rotor systems |
| 08/30/2011 | US8007248 Engine speed dependent oil pump pressure regulation |
| 08/25/2011 | WO2011102319A1 Rankine cycle apparatus |
| 08/17/2011 | CN201934143U 制动一体化的气动马达 Brake integrated air motor |
| 08/10/2011 | CN201924969U 格槽式气动驱轮动力机 Grid trough pneumatic drive wheel power machine |
| 07/28/2011 | WO2011089638A1 Positive displacement expander and refrigeration cycle device using the positive displacement expander |
| 07/14/2011 | DE102005014130B4 Schaltventilkonstruktion einer Fluidmaschine Switching valve structure of a fluid machine |
| 07/06/2011 | CN201891439U Spiral type volume expansion machine |
| 06/23/2011 | US20110150684 Variable displacement vane pump |
| 06/22/2011 | CN102102541A Single-screw fluid power generator and generating method |
| 06/16/2011 | WO2010115625A3 Method for controlling the valves of a rotary piston steam engine |
| 06/16/2011 | US20110142703 Variable displacement vane pump |
| 06/15/2011 | CN101506471B Rotary expander |
| 06/01/2011 | CN102080581A Screw expansion power machine and control system thereof |
| 06/01/2011 | CN102080580A Screw expansion power machine and control system thereof |
| 05/26/2011 | US20110123379 Variable displacement pump |
| 05/25/2011 | CN102071974A Braking integrated pneumatic motor |
| 05/25/2011 | CN102071973A Scroll compression-expansion compound machine for compressed air energy storage technology |
| 05/19/2011 | US20110116958 Rotary engine expansion chamber apparatus and method of operation therefor |
| 05/18/2011 | CN102061943A Cellular pneumatic driving wheel power machine |
| 05/05/2011 | US20110103988 Compressor having capacity modulation system |
| 05/04/2011 | CN101548066B Freezing apparatus, and expander |
| 04/27/2011 | CN102037217A Fluid machine and refrigeration cycle device |
| 04/27/2011 | CN102037216A Two-stage rotary expander, expander-integrated compressor, and refrigeration cycle device |
| 04/26/2011 | US7931450 Variable displacement pump |
| 04/20/2011 | EP2312136A1 Waste heat regeneration system |
| 04/20/2011 | CN201802442U Air-powered vehicle engine combining single-screw expander with molten salt heater |
| 04/06/2011 | CN201786390U Wind driven generator |
| 03/24/2011 | DE102009037744A1 Device for displaying variable compression in internal combustion engine, is provided in internal combustion engine which has combustion chamber |
| 03/23/2011 | CN201771564U Screw rod expansion power machine and control system thereof |
| 03/23/2011 | CN201771563U Screw expansion power machine and control system thereof |
| 03/23/2011 | CN201771562U Screw rod expanding power machine and control system thereof |
| 03/16/2011 | EP2295721A1 Fluid machine and refrigeration cycle device |
| 03/16/2011 | EP2295720A1 Two-stage rotary expander, expander-integrated compressor, and refrigeration cycle device |
| 02/16/2011 | CN201747410U Controlling device of triangle flash evaporation circulation power generation system |
| 02/02/2011 | CN101965458A Progressive cavity apparatus with transducer and methods of forming and use |
| 01/05/2011 | CN201696099U Mounting mechanism for encoder of hydraulic motor |
| 01/04/2011 | US7862305 Variable displacement vane pump |
| 12/22/2010 | CN101922319A Screw expansion power machine and control system thereof |
| 12/22/2010 | CN101922318A Single-screw expander and fused salt combined engine system |
| 12/15/2010 | CN101918676A 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 |
| 11/25/2010 | WO2010134110A1 Synchronising system of at least two hydraulic motors |
| 11/25/2010 | WO2010132960A1 Rotary piston steam engine with balanced rotary variable inlet-cut- off valve and secondary expansion without back-pressure on primary expansion |
| 11/25/2010 | US20100296956 Variable displacement pumps and vane pump control systems |
| 11/25/2010 | CA2761785A1 Rotary piston steam engine with balanced rotary variable inlet-cut- off valve and secondary expansion without back-pressure on primary expansion |
| 11/24/2010 | CN201650371U Speed limit device for gas admission, gas exhaust tubes |
| 11/24/2010 | CN101892865A Control method and control device of triangular flash evaporation circulating power generation system |
| 11/16/2010 | CA2625088C Toroidal engine with variable displacement volume |
| 11/11/2010 | US20100282204 Variable displacement vane pump |
| 11/10/2010 | CN1666010B Internal gear machine with variable capacity |
| 11/02/2010 | CA2564973C Apparatus adapted to perform as compressor, motor, pump and internal combustion engine |