| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 07/23/2008 | CN201090434Y Rotary piston pump |
| 07/23/2008 | CN201090433Y Gear pump back cover |
| 07/23/2008 | CN201090432Y Rotor oil pump |
| 07/23/2008 | CN201090418Y Hydraulic pressure-driven gear oil well pump |
| 07/23/2008 | CN201090367Y Assembled rotor and stator cycloid hydraulic motor |
| 07/23/2008 | CN101225818A Installation mechanism for scroll compressor non-revolution whirlpool piece and installation method thereof |
| 07/23/2008 | CN101225791A Distributing plate of plane flow-distributing liquid-pressure motor and manufacturing method therefor |
| 07/23/2008 | CN100404865C Regulated pump |
| 07/23/2008 | CN100404864C Metering pump used for transporting molten metal |
| 07/23/2008 | CN100404863C Oil pump rotor |
| 07/17/2008 | US20080170955 Scroll compressor with crankshaft venting |
| 07/17/2008 | US20080170950 Rotary Pump |
| 07/16/2008 | EP1944512A1 Pressure pump with pulsation damper |
| 07/16/2008 | EP1943423A1 Pump arrangement |
| 07/16/2008 | CN201087731Y Roter type engine oil pump of car engine |
| 07/16/2008 | CN101223363A Gear pump |
| 07/16/2008 | CN101223362A Internal gear pump |
| 07/16/2008 | CN101220754A Generator |
| 07/16/2008 | CN100402858C Screw compressor discharge flow guide |
| 07/16/2008 | CN100402856C Scroll type hydraulic machine |
| 07/15/2008 | US7399170 Hermetic rotary compressor and refrigerating cycle device using the same |
| 07/15/2008 | US7399166 Variable displacement pump |
| 07/15/2008 | US7398757 Toroidal engine method and apparatus |
| 07/15/2008 | CA2260634C Elastomeric stator for an eccentric spiral pump |
| 07/10/2008 | US20080166254 Hydraulic device |
| 07/10/2008 | US20080166251 Variable Capacity Gerotor Pump |
| 07/09/2008 | EP1942277A2 Dynamic pressure control for hydraulic pumps |
| 07/09/2008 | CN101218434A Vacuum pump for vehicle motors and one-way valve for said vacuum pump |
| 07/09/2008 | CN101216036A Rotary vane type compressor |
| 07/09/2008 | CN101216032A Axle sleeve-free gear oil pump |
| 07/09/2008 | CN101216031A Heavy pressure gear oil pump |
| 07/09/2008 | CN101216030A Gear oil pump |
| 07/09/2008 | CN100400886C Apparatus for preventing overheating of scroll compressor |
| 07/09/2008 | CN100400876C Radial double-acting axial-flow ram pump |
| 07/09/2008 | CN100400875C Cycloidal screw tooth form of large flow double screw pump |
| 07/09/2008 | CN100400694C Oil pump, molded parts used in the same, and manufacturing method of the molded parts |
| 07/09/2008 | CN100400355C Motor-pump unit |
| 07/08/2008 | US7395948 Multiple tank fluid pumping system using a single pump |
| 07/03/2008 | WO2008079131A1 Screw compressor with integral bearing cover and discharge plenum divider |
| 07/03/2008 | WO2008077812A1 Hydraulic gearing |
| 07/03/2008 | US20080159898 Vane Pump |
| 07/03/2008 | US20080159885 Motor-Mounted Internal Gear Pump and Manufacturing Method Thereof and Electronic Equipment |
| 07/03/2008 | US20080159884 Motor-Mounted Internal Gear Pump and Electronic Equipment |
| 07/03/2008 | DE102007055911A1 Rotary pump, has internal rotor that is provided with external teeth element at its outer peripheral surface, and external rotor that is provided with internal teeth elements at its inner peripheral surface |
| 07/03/2008 | DE102006061706A1 Sliding/rotary vane pump for e.g. filling blister contained in seat, has suction hole opening and closing unit to open and close suction opening, when return valve opens pump area in peripheral direction |
| 07/03/2008 | DE102006061326A1 Adjusting device for use in e.g. lubricating oil pump in motor vehicle, has control pressure chambers separately controlled and subjected with pump- or main channel pressure and arranged at circumference of control slide valve |
| 07/02/2008 | EP1937975A1 Hot melt adhesive metering pump assembly with integral reservoir tank |
| 07/02/2008 | EP1937974A1 Remote hot melt adhesive metering station |
| 07/02/2008 | EP1937973A1 An interlocking device for holding body and flange of machines using bean-shaped dowels |
| 07/02/2008 | EP1937862A2 Process for hardfacing a progressing cavity pump/motor rotor |
| 07/02/2008 | CN100398825C Variable displacement pump |
| 07/02/2008 | CN100398824C Volumetric vane pump |
| 07/01/2008 | US7393192 Rotary vane pump |
| 07/01/2008 | US7393191 Internal refrigerant gas circulation apparatus for a closed-type scroll compressor |
| 07/01/2008 | US7393190 Discharge valve system of scroll compressor |
| 06/26/2008 | WO2008075557A1 Electric operated pump unit and electric operated oil pump |
| 06/26/2008 | WO2008075507A1 Single-shaft eccentric screw pump |
| 06/26/2008 | WO2008075134A1 Hydraulic traction system for vehicles |
| 06/26/2008 | US20080152525 Scroll fluid machine |
| 06/26/2008 | DE102007059783A1 Ölpumpe und Montageverfahren der Ölpumpe Oil pump and the oil pump assembly method |
| 06/26/2008 | DE102006061971A1 Double flow screw-spindle pump for feeding e.g. multi-phase mixtures of crude oil and petroleum, has drive spindle and running spindle with profiled stacks, which are designed such that feeding chambers are opened in time-shifted manner |
| 06/25/2008 | EP1934479A1 Vane pump |
| 06/25/2008 | EP1934478A1 Vane cell pump |
| 06/25/2008 | EP1934477A1 Net-displacement control of fluid motors and pumps |
| 06/25/2008 | EP1658437B1 Gear tooth and external gear pump |
| 06/25/2008 | CN101208518A Screw displacement pump |
| 06/25/2008 | CN101205926A Oil pump device of enclosed type compressor |
| 06/25/2008 | CN101205905A Oil pump and method of assembling the oil pump |
| 06/25/2008 | CN101205904A Eccentric cover for cycloidal inner/outer rotor pump |
| 06/25/2008 | CN100396934C Vane pump |
| 06/25/2008 | CN100396928C Pump and ink jet printer mounting the pump |
| 06/24/2008 | US7390182 Rotor structure of pneumatic tool |
| 06/24/2008 | US7390180 Oil pumping device of hermetic compressor |
| 06/19/2008 | US20080145260 Vane Pump with Moveable Sleeve |
| 06/19/2008 | US20080145238 Vacuum exhaust apparatus and drive method of vacuum exhaust apparatus |
| 06/19/2008 | US20080141973 Hybrid Cycle Rotary Engine |
| 06/19/2008 | DE102007004852A1 Hydraulikpumpe eines Fahrzeuges Hydraulic pump of a vehicle |
| 06/19/2008 | DE102006058980A1 Vane pump e.g. for braking systems in motor vehicles, has electric motor with rotating motor shaft and motor bearings with pumping chamber provided having base plate, ring pump and cover |
| 06/19/2008 | DE102006058979A1 Vane pump, for a motor vehicle, has guide slits at the rotor extending inwards from the circumference to take sliding impellers |
| 06/19/2008 | DE102006058978A1 Vane pump, for motor vehicles, has a structured base plate and/or cover plate at the pump chamber to prevent snagging by the rotor impellers |
| 06/19/2008 | DE102006058977A1 Vane cell pump has pump chamber formed to prevent catching of sliding element on bounding edges of at least one fluid inlet opening of base plate during pump operation |
| 06/19/2008 | DE102006058166A1 Swivel head for pin joints on connecting rod in eccentric screw pump. It has transverse bores fitted with bushes prevented from moving transversely by stops which cooperate with stops on bore through rod for pin |
| 06/19/2008 | DE102006058112A1 Control oil pump for a lubricating oil supply in a combustion engine comprises a conveying toothed wheel either fixed axially in the pump housing or formed as a component of a sliding unit which slides in the housing |
| 06/18/2008 | EP1933033A1 Internal gear type pump with built-in motor and electronic device |
| 06/18/2008 | EP1931879A1 Vane cell pump |
| 06/18/2008 | EP1931878A1 Gasket part for a pump |
| 06/17/2008 | CA2504529C Progressive cavity pump/motor stator, and apparatus and method to manufacture same by electrochemical machining |
| 06/17/2008 | CA2496896C Screw compressor discharge flow guide |
| 06/17/2008 | CA2461031C Discharge porting design for screw compressor |
| 06/17/2008 | CA2449158C Liquid seal pump of the helical screw type |
| 06/17/2008 | CA2346488C Rotary pump |
| 06/12/2008 | WO2008069773A1 Compressor slide valve support |
| 06/12/2008 | US20080138228 Scroll-Type Fluid Machine |
| 06/12/2008 | US20080134680 Method of Transforming Heat Energy to Mechanical Energy to Mechanical Energy in a Low-Pressure Expansion Device |
| 06/11/2008 | EP1930595A2 Conveying unit |
| 06/11/2008 | EP1664539B1 Inner gear-wheel pump comprising reinforced channels |
| 06/11/2008 | CN201071808Y Sliding-vane pump equipped with pressure bias component |
| 06/11/2008 | CN201071807Y Sliding-vane pump equipped with sealing member |
| 06/11/2008 | CN201071806Y Hydraulic pump rotor |
| 06/11/2008 | CN201071805Y Hydraulic pump housing |