F04C 2 - Rotary-piston machines or pumps

Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
11/2006
11/29/2006	CN2842013Y Improved oil pump assembly
11/28/2006	US7141119 Pressure-controlling dispersion delivery system
11/28/2006	CA2183595C Perfected twin-screw pump, particularly suitable for the pumping of biphase fluids in a submarine environment
11/23/2006	WO2006123927A1 Transmission with orbital gears
11/23/2006	WO2006123519A1 Rotary compressor
11/23/2006	US20060263230 Optimized helix angle rotors for Roots-style supercharger
11/23/2006	US20060263227 Electric compressor
11/23/2006	US20060263226 Oil retention in scroll compressor pump members
11/23/2006	US20060263225 Scroll compressor
11/23/2006	DE10360172C5 Hydraulischer Motor Hydraulic motor
11/22/2006	EP1366294B1 Rotary positive displacement machine
11/22/2006	CN2839649Y Double-acting electric machine vane pump
11/22/2006	CN2839648Y Paint pump structure for electric paint brushing device
11/22/2006	CN2839647Y 齿轮泵 Gear pumps
11/22/2006	CN2839646Y Gear pump active gear shaft positioning structure
11/22/2006	CN1867753A Method for delivering a multi-phase mixture and pump installation
11/22/2006	CN1865699A 液压装置 Hydraulics
11/21/2006	US7137798 Gear pump with variable throughput volume
11/21/2006	US7137795 Stator for eccentric spiral pump
11/21/2006	US7137793 Magnetically driven gear pump
11/21/2006	US7137789 Vent for reducing seal pressure in pump assembly
11/16/2006	WO2006120138A1 Internal gear fuel pump
11/16/2006	WO2006120006A1 Pump, in particular hybrid pump
11/16/2006	WO2006119574A1 Improved vane pump
11/16/2006	US20060257277 Rotary piston machine
11/16/2006	DE102005021597A1 Kraftstoffpumpe Fuel pump
11/15/2006	EP1722103A2 Gear pump with bearings
11/15/2006	EP1721078A1 Rotary pump provided with an axially movable blade
11/15/2006	CN2837557Y Dual-screw high viscosity medium conveying pump
11/15/2006	CN1861996A Engine with quadrangle rotor
11/15/2006	CN1284931C Internal gear pump
11/14/2006	US7134855 Vane pump with integrated shaft, rotor and disc
11/14/2006	US7134854 Oil recycling apparatus for compressor
11/14/2006	US7134853 Scroll compressor having a flow rate controlling member inserted into a high pressure fluid introducing passageway
11/14/2006	CA2224483C Variable-speed hydraulic motor with gears, supplied with motor fluid and producing variable torque
11/09/2006	WO2006063583A3 Compact eccentric screw pump
11/09/2006	US20060251534 Discharge diffuser for screw compressor
11/09/2006	US20060251511 Pump
11/09/2006	DE202005010467U1 Rotary piston pump has pair of oppositely driven pistons in housing which has fluid inlet and outlet openings with wider angles for faster filling and less cavitation
11/09/2006	DE102005019063B3 Operating process, for eccentric screw pump, involves prior testing of pump, storing damage frequency picture and comparing with overall frequency picture in operation
11/08/2006	EP1718865A2 Low cost gear fuel pump
11/08/2006	EP1718844A2 Improvements in spherical fluid machines
11/08/2006	CN2835652Y 液压齿轮泵 Hydraulic gear pump
11/07/2006	US7131827 Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle
11/07/2006	US7131826 Blending pump assembly
11/07/2006	CA2251112C Progressive cavity pumps using composite materials
11/02/2006	WO2006115434A1 Rotor sliding-vane machine
11/02/2006	WO2006066538A3 Pump
11/02/2006	US20060245968 Seal member for scroll compressors
11/02/2006	US20060245967 Suction baffle for scroll compressors
11/02/2006	US20060245966 Rotor pump
11/02/2006	US20060243492 Inner and outer motor with eccentric stabilizer
11/02/2006	EP1717443A1 Motor-driven pump unit
11/02/2006	EP1716336A1 Pumping system
11/02/2006	DE4221720B4 Hydraulische Druckvorrichtung Hydraulic pressure device
11/02/2006	CA2606096A1 Rotor sliding-vane machine
11/01/2006	CN2833180Y Tooth number unequal screw tooth profile of dual-screw pump
11/01/2006	CN2833179Y Tooth number unequal screw tooth profile of three-screw pump
11/01/2006	CN2833177Y Metering pump
11/01/2006	CN1856650A 油泵转子 Pump rotor
11/01/2006	CN1854524A Method and device for supplying oil of decelerator corotation or reversed rotation
11/01/2006	CN1854523A Double-arch open-cylinder locking plate concrete pump
10/2006
10/31/2006	US7128542 Variable displacement pump
10/26/2006	WO2006113746A2 High-torque switched reluctance motor
10/26/2006	WO2006112646A1 Sludge pump that is used to general
10/26/2006	WO2006111314A1 Motor/pump unit, particularly for a vehicle power steering system
10/26/2006	WO2005081913A3 Improvements in spherical fluid machines
10/26/2006	US20060239849 Gerotor apparatus for a quasi-isothermal Brayton cycle engine
10/26/2006	US20060239848 Internal gear type oil pump rotor
10/26/2006	DE19832719B4 Flügelzellenpumpe Vane pump
10/26/2006	DE102006015136A1 Pump used as a vane pump or a roller cell pump comprises a rotating group having a contour ring, a rotor and side plates or walls so that a flood is influenced within the group with pressure-less circulation
10/25/2006	EP1715186A2 pump
10/25/2006	EP1714038A1 Rotary piston pump having an axially moving vane
10/25/2006	EP1714037A1 Rotary piston pump comprising an axially movable vane
10/25/2006	EP1714036A1 Sealing surfaces between a wavy rotor collar and a displaceable slide of a plump
10/25/2006	EP1714035A1 Rotary pump provided with an axially movable blade
10/25/2006	CN1853045A 油泵转子 Pump rotor
10/25/2006	CN1853031A Hydraulic machine
10/25/2006	CN1851271A Triangular rotor hydraulic pump
10/25/2006	CN1851270A Piezoelectric screw pump
10/25/2006	CN1851269A Slider type hydraulic device
10/24/2006	US7125224 Rotary kinetic tangential pump
10/24/2006	US7125020 Vented high pressure shaft seal
10/24/2006	US7124930 Welding method and tubular member and gear pump made using the welding method
10/19/2006	US20060233657 Scroll machine
10/19/2006	US20060233656 Scroll fluid machine
10/19/2006	US20060233655 Scroll machine with axially compliant mounting
10/19/2006	US20060233654 Compressor with radial compliance mechanism
10/19/2006	US20060233653 Rotary mechanism
10/19/2006	DE202006012407U1 Toothed wheel machine used as a toothed wheel pump for conveying and/or dosing a lacquer, wax, solvent, hardener or sealant comprises a housing sealed on a drive shaft using a seal having sealing lips
10/19/2006	DE102005017834A1 Vane pump for pumping fluid has eccentric cam fixed to carrier journal of drive shaft and containing pump inlet and suction control slot
10/19/2006	DE102005016670A1 Lackdosierpumpe Lackdosierpumpe
10/18/2006	CN2828386Y Direct-connection electric sliding vane pump
10/18/2006	CN1847656A Motor-driven vane pump
10/18/2006	CN1847655A High pressure straight-line rotary concrete pump
10/18/2006	CN1280543C pump-driving system and clutch assembly thereof
10/12/2006	US20060228246 Vacuum pump
10/12/2006	US20060228245 Single-vane rotary pump or motor
10/12/2006	US20060228244 Scroll compressor multipile isolated intel ports
10/12/2006	US20060228243 Discharge valve structures for a scroll compressor having a separator plate

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