F04C 2 - Rotary-piston machines or pumps

Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
12/2011
12/21/2011	CN202082097U 蜗杆蜗轮泵 Worm pumps
12/21/2011	CN202082096U Gear pump
12/21/2011	CN202082095U 转盘式转叶泵 Rotary rotary vane pump
12/21/2011	CN202082094U 一种环状气囊补偿密封四空间转子泵 A cyclic four space balloon compensation seal rotor pump
12/21/2011	CN202082093U 一种环状气囊补偿密封五空间转子泵 A cyclic five space balloon compensation seal rotor pump
12/21/2011	CN102287369A 大排量泵马达一体的供油装置 Large displacement pump motor oil installations integrated
12/21/2011	CN102287368A 复合平衡型单吸双螺杆泵 Composite balanced single-suction double screw pump
12/21/2011	CN101240724B 调压可变排量叶片泵 The variable displacement vane pump regulator
12/20/2011	US8079343 Positive-displacement turbine engine
12/20/2011	CA2497491C Closed system rotary machine
12/15/2011	WO2011155312A1 Uniaxial eccentric screw pump
12/15/2011	WO2011155311A1 Buffering member, shaft coupled structure, and a uniaxial eccentric screw pump
12/15/2011	WO2011154237A2 Rotary vane pump
12/15/2011	WO2011153915A1 Spiraster-type fluid motor or engine and compressor or pump
12/15/2011	DE202010012494U1 Drehkolbenpumpe und Drehkolben Rotary pump and rotary piston
12/15/2011	CA2800168A1 Uniaxial eccentric screw pump
12/14/2011	CN202073783U 高压叶片泵 High pressure vane pump
12/14/2011	CN202073782U 高压叶片泵 High pressure vane pump
12/14/2011	CN202073781U 叶片泵 Vane pump
12/14/2011	CN202073780U Melt gear pump
12/14/2011	CN102282373A 单轴偏心螺杆泵 Uniaxial eccentric screw pump
12/13/2011	US8075293 Rotary blower with corrosion-resistant abradable coating
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	US8075288 Screw pump and pumping arrangement
12/08/2011	DE102010022677A1 Flügelzellenpumpe Vane pump
12/07/2011	EP2392826A2 Frame rotated hydraulic motor with improved parking brake
12/07/2011	EP2392740A2 Lifting assembly for disposing of domestic waste water
12/07/2011	CN202065173U 双吸式全压紧多级双螺杆泵 Double Suction whole multistage compression screw pump
12/07/2011	CN202065172U 双吸式潜油电动双螺杆泵 Double-suction submersible electric twin-screw pump
12/07/2011	CN102269051A 旋转活塞动力机械 Rotary piston-powered machinery
12/01/2011	WO2011149842A2 Multiphase pump flow recirculation system
12/01/2011	WO2011149209A2 Electrically driven scroll compressor
12/01/2011	WO2011148533A1 Positive-displacement fluid machine
12/01/2011	WO2011147638A2 Internal gear pump
12/01/2011	WO2011147457A1 Variable displacement lubricant pump
12/01/2011	WO2011106422A3 Compressor including valve assembly
12/01/2011	WO2010119336A8 Aircraft main engine fuel pump with multiple gear stages using shared journals
12/01/2011	US20110293460 Vane pump inlet window shape
12/01/2011	DE102011012586A1 Gerotorpumpe mit Außenringantrieb Gerotor pump with outer ring drive
12/01/2011	DE102010021592A1 Manufacturing a rotor of an eccentric spiral pump that includes a one-piece screw coil and a drive head, comprises introducing a high-alloy steel or cast iron into a casting mold and then curing the high-alloy steel or cast iron
11/2011
11/30/2011	CN202056048U 一种同步回转多相油气混输泵 A synchronous rotation multiphase oil and gas mixing pump
11/30/2011	CN202056047U 可调式双螺杆泵套 Adjustable double screw pump sets
11/30/2011	CN102265036A 向心泵级和包含该泵级的真空泵 Centripetal pump stage and contain the level of vacuum pump
11/30/2011	CN101466951B 余摆线泵 Trochoid pump
11/30/2011	CN101251105B 压缩机 Compressor
11/24/2011	WO2011146245A1 Gear joint with super finished surfaces
11/24/2011	WO2011145717A1 Rotation device provided with seal structure
11/24/2011	WO2011045171A3 Double internal gear pump
11/24/2011	CA2798346A1 Gear joint with super finished surfaces
11/23/2011	EP2388482A1 Screw pump with field refurbishment provisions
11/23/2011	EP2286088B1 Pump
11/23/2011	CN202047981U Automotive hydraulic power assisted steering pump
11/23/2011	CN102257275A Internal gear pump
11/23/2011	CN102256824A Device for pressurising a fluid, to be directly mounted on a power takeoff
11/23/2011	CN102251963A Composite impeller type water pump
11/23/2011	CN102251962A Blade pump
11/23/2011	CN102251961A Double-modulus gear pump
11/23/2011	CN102251960A Screw pump with field refurbishment provisions
11/23/2011	CN101627209B Oil pump rotor
11/21/2011	CA2740682A1 Insertable surface-driven pump
11/17/2011	WO2011141165A2 Lubricant pump and control piston
11/17/2011	WO2011119464A3 Rotary infusion pumps
11/17/2011	WO2011088290A3 Formed seal ring for a liquid gas separating element
11/16/2011	CN202040081U Helical gear steering pump
11/16/2011	CN202040080U Synchronous hydraulic external gear pump
11/16/2011	CN202040079U High-pressure gear pump with rectangular oil outlet
11/16/2011	CN202040078U Hydraulic pressure power-assisted steering gear pump of mine truck
11/16/2011	CN202040077U Four-line synchromesh spring-compensation combination pump
11/16/2011	CN202040076U Three-line synchromesh spring-compensation combination pump
11/16/2011	CN202040075U Five-wire synchromesh spring compensating unit pump
11/16/2011	CN102245902A Pump unit
11/16/2011	CN102242707A Internally tangent double-barrel rolling type pump
11/16/2011	CN102242706A Micro water pump
11/16/2011	CN101316999B 氢g循环旋转内燃发动机 G hydrogen rotary combustion engine cycle
11/15/2011	US8057202 Tip seal for a scroll compressor
11/15/2011	US8057201 Variable displacement vane pump with dual control chambers
11/15/2011	US8056527 Split-chamber rotary engine
11/10/2011	WO2011140479A1 Method and system for continuously pumping a solid material and method and system for hydrogen formation
11/10/2011	WO2011140358A2 Fluid energy transfer device
11/10/2011	WO2011139958A1 Methods and apparatus for manufacturing stators for positive displacement motors and progressive cavity pumps
11/10/2011	WO2011139041A2 Compressor for a heat pump
11/10/2011	WO2011138083A1 Pump assembly for a high-pressure injection system
11/10/2011	WO2011137890A2 Lubricant valve for oil pumps of internal combustion engines
11/10/2011	WO2011137510A1 An apparatus and a method for use in positioning a rotor within a stator in a progressing cavity pump
11/10/2011	WO2011054660A3 Positive displacement pump
11/10/2011	WO2011039128A3 Axial sealing element for an internal gear pump
11/10/2011	US20110271674 Sliding vane rotary expander for waste heat recovery system
11/09/2011	EP2201227B1 Scr system and method for the purging thereof
11/09/2011	CN202031833U Novel structure of car steering assisting pump
11/09/2011	CN202031832U Steering gear pump
11/09/2011	CN102239333A Fuel pump for internal combustion engines
11/09/2011	CN102235351A Eccentric rotor water pump
11/09/2011	CN101466479B Coating device and associated operating method
11/08/2011	US8052406 Scroll machine having improved discharge valve assembly
11/07/2011	CA2703389A1 Gear pump
11/03/2011	US20110268598 Gear pump
11/02/2011	EP2383491A1 Transmission with lubricant oil pump, series of transmissions and method for producing variants of a series of transmissions.
11/02/2011	CN202023737U Cosine gear pump
11/02/2011	CN202023736U Splitting type double-screw pump

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