F03C 2 - Rotary-piston engines

Patents for F03C 2 - Rotary-piston engines (2,448)
01/2012
01/03/2012	US8087914 Positive displacement pump with improved rotor design
12/2011
12/29/2011	WO2011161117A2 Continuously variable volume hydrostatic rotary piston machine
12/29/2011	DE102010017649A1 Ball turbine for energy power plant, has ball rotor comprising recesses or tapped blind holes that are arranged at distance from each other, where middle axis of recesses or holes is extended in angle with respect to radial in ball of rotor
12/28/2011	CN202090959U 一种齿轮式同步分流马达及其构成的液压系统 A synchronous shunt motor and gear hydraulic system consisting of
12/28/2011	CN202090958U 旋阀机构及应用该旋阀机构的星旋式转动装置 Rotary valve mechanism and application of the spin valve body rotating device rotating star
12/27/2011	US8083508 Progressive cavity compressor having check valves on the discharge endplate
12/27/2011	US8083507 Vacuum pump having rotation body cleaning unit with spraying holes on an output surface of the cleaning body surrounding a shaft
12/14/2011	CN102282333A 阀控井底马达 VRLA downhole motor
12/14/2011	CN102278268A 液态压力传动引擎及其驱动方法 Liquid pressure transmission engine and driving method thereof
12/13/2011	US8075292 Eccentric rotor compressor
12/13/2011	US8075291 Scroll compressor improved in function of oil circulation and back pressure control
12/13/2011	US8075290 Scroll compressor with valve for controlling fluid to flow from an outer wall to an inner wall of a fixed or a movable spiral wrap
12/13/2011	US8075289 Scroll-type fluid machine including thrust receiving device
12/13/2011	US8075288 Screw pump and pumping arrangement
12/13/2011	US8074471 Refrigeration cycle apparatus and fluid machine used for the same
11/2011
11/22/2011	US8062011 Compressor having an ejector oil pump
11/15/2011	US8056528 Radial axis, spherical based rotary machines
11/15/2011	US8056361 Multi-stage rotary-type fluid machine and refrigeration cycle apparatus
11/09/2011	CN202031765U Blades of hydraulic motor
11/09/2011	CN202031655U Blade-type hydraulic motor with rocker structure
11/08/2011	US8052406 Scroll machine having improved discharge valve assembly
11/02/2011	CN102230446A Hydraulic power machine
11/01/2011	US8047823 Scroll-type fluid machine including pressure-receiving piece
11/01/2011	CA2503914C Shared slot vane pump
10/2011
10/27/2011	US20110262292 Vane air motor
10/26/2011	CN202017628U Axial pressure compensation end cover for hydraulic gear pump
10/18/2011	US8038422 Gear pump with a valve arranged between a suction side and a pressure side of the gear pump
10/18/2011	US8038421 Scroll compressor having an allowable angle of rotation
10/11/2011	US8033802 Stator casing for eccentric worm pumps
10/05/2011	CN202001183U Hydraulic motor balancing disc
10/05/2011	CN202001182U Small-sized hydraulic motor
10/05/2011	CN202001181U Front oil distribution hydraulic motor
10/05/2011	CN202001180U Double-support hydraulic motor
10/04/2011	US8029254 Scroll-type fluid machine having a back-pressure chamber
09/2011
09/28/2011	EP2369173A2 Fluid rotation machine with a sensor assembly
09/28/2011	EP2369172A2 Fluid rotation machine with a sensor assembly
09/28/2011	CN101586523B Noncircular planetary gear hydraulic motor
09/20/2011	US8021134 Compressor slide valve support
09/14/2011	CN201972738U Star-spin rotating device with double sun wheels, engine and fluid machinery
09/09/2011	WO2011048298A3 High-efficiency power production unit
09/07/2011	CN201963463U 板式链接马达 Plate link motor
09/07/2011	CN102174901A Blade type hydraulic motor with rocker arm structure
09/07/2011	CN101798986B Vehicle-mounted hydraulic self-generating system
09/06/2011	US8011910 Low noise gear set for gear pump
09/06/2011	US8011909 Balanced variable displacement vane pump with floating face seals and biased vane seals
09/02/2011	CA2733367A1 Downhole positive displacement motor
08/2011
08/31/2011	CN102168644A Hydraulic drive device
08/31/2011	CN102168643A Novel structure for cycloid hydraulic motor flow distributor
08/30/2011	US8007264 Positive displacement pump apparatus and method
08/30/2011	US8007263 Water-lubricated compressor
08/30/2011	US8007262 Compressor with thrust bearing having insular pressure- receiving portions on sliding surface and diamond-like carbon layer on another sliding surface
08/30/2011	US8007261 Thermally compensated scroll machine
08/30/2011	US8007259 Stator system
08/30/2011	US8007248 Engine speed dependent oil pump pressure regulation
08/23/2011	US8002529 Scroll compressor with extended profile
08/23/2011	CA2516507C Sleeve piston fluid motor
08/17/2011	CN201934267U 一种环保节能减排地热开发系统 An environmentally friendly energy saving geothermal development system
08/17/2011	CN201934157U 一种环保节能减排热废水回收系统 An environmentally friendly energy saving hot water recovery system
08/17/2011	CN101778999B Screw compressor with integral bearing cover and discharge plenum divider
08/16/2011	US7997885 Roots-type blower reduced acoustic signature method and apparatus
08/16/2011	US7997884 Rotary device and oil pump having α-alumina and zirconia coating
08/16/2011	US7997883 Scroll compressor with scroll deflection compensation
08/09/2011	US7993120 Slide valve
08/09/2011	US7993119 Vane pump and vapor leakage check system having the same
08/09/2011	US7993117 Scroll compressor and baffle for same
08/03/2011	CN101761446B Stepless speed regulation hydraulic motor
08/02/2011	US7988436 Vane machine
08/02/2011	US7988435 Oilless screw compressor and compressed air cooling unit
07/2011
07/14/2011	DE102005014130B4 Schaltventilkonstruktion einer Fluidmaschine Switching valve structure of a fluid machine
07/12/2011	US7976297 Gear pump including introduction paths and return paths
06/2011
06/29/2011	CN102108878A Rotor fluid generator and generating method
06/22/2011	DE102009055109A1 Antriebseinheit für ein mit einem Druckmedium betriebenes Hebezeug Drive unit for a run with a pressure medium hoist
06/22/2011	CN201874743U Hydraulic motor with speed measuring device
06/22/2011	CN102102541A Single-screw fluid power generator and generating method
06/21/2011	US7963754 Hydraulic machine
06/21/2011	US7963752 Powder metal scroll hub joint
06/21/2011	US7963186 Ancillary oil pumping for gear box assembly
06/15/2011	EP1540174B1 Cam ring bearing for fuel delivery system
06/15/2011	CN201865834U Driving water turbine device used in multiple-medium mixing system
06/15/2011	CN102094680A Vortex power generator and power generating method
06/14/2011	US7959422 Oil pump and method of assembling the oil pump
06/14/2011	US7959421 Compressor having a shutdown valve
05/2011
05/31/2011	US7950912 Scroll compressor having a gradually changing tip clearance
05/24/2011	US7946834 Balance shaft module equipped with oil pump
05/18/2011	CN201835977U Hydraulic screw engine
05/18/2011	CN201835976U Low dropout hydraulic motor
05/18/2011	CN102062161A Active materials actuated one-way clutch
05/11/2011	CN201826899U Rotor of screw expander
05/11/2011	CN201826898U Double-screw expansion machine
05/10/2011	US7938634 Self-modulated scroll compressor with optimized built-in volume ratio
05/10/2011	CA2493686C Cam ring bearing for fuel delivery system
05/04/2011	CN101608597B Controllable wheel-groove slow flow type water turbine/water pump
05/03/2011	US7934915 Valve assembly for scroll compressor
04/2011
04/28/2011	WO2011048298A2 High-efficiency power production unit
04/21/2011	WO2011046591A1 Internal combustion engine and supercharger
04/21/2011	CA2776812A1 Internal combustion engine and supercharger
04/13/2011	CN201794784U Bidirectional high-speed high-torsion highly-efficient durable simple convenient hydraulic power part
04/12/2011	US7922469 Pump
04/07/2011	WO2011040895A1 Driving gear
04/06/2011	CN102003213A Planetary type rotary piston actuating mechanism based on fluid pressure

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