| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 01/30/2008 | CN100365300C Method of charging dynamic-pressure bearing device with lubricating fluid, and method of inspecting dynamic-pressure bearing device |
| 01/30/2008 | CN100365284C Rotor tooth-profile for screw pump |
| 01/29/2008 | US7322809 Rotary compressor with sealing portions and oil-supply groove |
| 01/29/2008 | CA2186063C Internal relief and bypass valve for pumps and piping systems |
| 01/24/2008 | WO2006129333A8 Vacuum pump for vehicle motors and a one-way valve for said vacuum pump |
| 01/24/2008 | US20080019856 Electric pump |
| 01/24/2008 | US20080017437 Internal gear pump and power steering device |
| 01/24/2008 | DE102007033804A1 Innenzahnradpumpe und Servolenkungsvorrichtung Internal gear pump and power steering apparatus |
| 01/24/2008 | DE102006033337A1 Displacement pump used as a vane pump comprises a compression chamber with outlet openings and a valve for opening and closing the outlet openings |
| 01/23/2008 | EP1880109A1 Rotor sliding-vane machine |
| 01/23/2008 | EP1880108A1 Internal gear fuel pump |
| 01/23/2008 | EP1421281B1 Gear pump |
| 01/23/2008 | EP1230486B1 Pump for a fluid or gaseous medium |
| 01/23/2008 | CN101111682A Rotary pump |
| 01/23/2008 | CN101111681A Motor-integrated internal gear pump, method of producing the gear pump, and electronic apparatus |
| 01/23/2008 | CN101109381A Improved gear medicine pump |
| 01/23/2008 | CN101109380A Multi-shaft multifunctional rotopiston pump |
| 01/23/2008 | CN101109379A Clapboard type multi-shaft rotopiston pump |
| 01/23/2008 | CN101109378A Innenzahnradpumpe und servolenkungsvorrichtung |
| 01/23/2008 | CN100363620C Sliding block rotor pump |
| 01/23/2008 | CN100363601C Engine with quadrangle rotor |
| 01/22/2008 | US7320579 Roots type fluid machine |
| 01/22/2008 | CA2235570C Cavitation-free gear pump |
| 01/19/2008 | CA2552498A1 Dual arc vane pump |
| 01/17/2008 | WO2007136438B1 Gear pump for pumping abrasive well fluid |
| 01/17/2008 | WO2007120268A3 Driven vane compressor |
| 01/17/2008 | WO2006102263A3 Methods and apparatus for pumping and dispensing |
| 01/17/2008 | DE102006032219A1 Conveying unit i.e. roller cell pump, has rotor supported in pump chamber, and path formed asymmetrically with respect to symmetrical axis that runs from closest radial clearance to farthest radial clearance |
| 01/17/2008 | DE102006031510A1 Förderaggregat Delivery unit |
| 01/16/2008 | EP1877666A1 A rotor, a method for producing such rotor and a pump comprising such rotor |
| 01/16/2008 | CN201007276Y Roter used for rotary type displacement pump |
| 01/16/2008 | CN101107447A Pump, especially slurry pump |
| 01/16/2008 | CN100362263C Lubricatnig pump for interaxial differential mechanism |
| 01/15/2008 | US7318705 Variable displacement pump with communication passage |
| 01/10/2008 | WO2008003589A1 Delivery unit |
| 01/10/2008 | WO2008003169A1 A variable capacity pump with dual springs |
| 01/10/2008 | WO2007075289A3 Fluid free interface for a fluidic analyzer |
| 01/10/2008 | US20080008611 Stator Clamping Device For Eccentric Screw Pump |
| 01/10/2008 | DE10333815B4 Schweißverfahren für rohrförmiges Element sowie Zahnradpumpe, die mit dem Schweißverfahren hergestellt ist A method for welding tubular member and gear pump, which is produced by the welding process |
| 01/09/2008 | EP1687538B1 Oscillating slide machine |
| 01/09/2008 | EP1397595B1 Liquid seal pump of the helical screw type |
| 01/09/2008 | EP1305523B1 Internal gear pump |
| 01/09/2008 | CN201003491Y Double layer alloy casting hydraulic gear pump axle sleeve |
| 01/09/2008 | CN201003490Y Bidirectional rotor mixed transfer machine |
| 01/09/2008 | CN101103177A Surgical pneumatic motor for use with MRI |
| 01/09/2008 | CN100360810C Screw profile for high flow high-pressure dual-screw pump |
| 01/09/2008 | CN100360809C Unequal-tooth-number screw profile for high-flow high-pressure dual-screen pump |
| 01/09/2008 | CN100360808C Unequal-tooth-number screw profile for high-flow high-pressure three-screw pump |
| 01/09/2008 | CN100360807C Rotary blade vacuum pump |
| 01/09/2008 | CN100360806C Rolling sliding vane pump |
| 01/09/2008 | CN100360805C Gas rotationally compressing apparatus, liquid rotationally conveying device and gas engine |
| 01/09/2008 | CN100360803C Big pressure angle negative profile shifted gear for hydraulic gear pump |
| 01/09/2008 | CN100360802C Oil pump roter |
| 01/08/2008 | US7316551 Vane pump with integrated shaft, rotor and disc |
| 01/08/2008 | US7316548 Stator for an eccentric screw pump or an eccentric worm motor operating on the Moineau principle |
| 01/03/2008 | WO2008000506A1 Moineau type pump |
| 01/03/2008 | WO2008000505A1 Moineau pump |
| 01/03/2008 | US20080003124 Hydrostatic Rotary Cylinder Engine |
| 01/03/2008 | DE102007027528A1 Vane pump has rotor bearing with diametric groove on its outer face, into which swivel coupling fits whose width corresponds to diameter of bearing |
| 01/02/2008 | CN200999793Y Multilevel antithrust bearing of down-hole double-screw pump system |
| 01/02/2008 | CN200999729Y Vane type massive and minced diluted-soft food product materials handling pump |
| 01/02/2008 | CN200999728Y Sliding sheet fuel delivery pumps used for high pressure common rail pump |
| 01/02/2008 | CN200999727Y Fluid delivery device |
| 01/02/2008 | CN200999726Y Down-hole double-screw pump system |
| 01/02/2008 | CN200999725Y Rotary piston pump |
| 01/01/2008 | US7314359 Vane pump for continuously variable transmission |
| 01/01/2008 | US7314356 Fluid machine |
| 01/01/2008 | US7314355 Compressor including deviated separation chamber |
| 01/01/2008 | US7314352 Electric pump |
| 01/01/2008 | US7314035 Rotary vane engine and thermodynamic cycle |
| 12/27/2007 | WO2007147382A1 Pump |
| 12/27/2007 | US20070297930 Rotary Displacement Pump Comprising Scraper and Guide of the Scraper |
| 12/27/2007 | DE19882986B4 Trockenvakuumpumpe Dry vacuum pump |
| 12/26/2007 | EP1869288A2 Torque limited lube pump for power transfer devices |
| 12/26/2007 | CN200996376Y Low-noise gear oil pump |
| 12/26/2007 | CN200996375Y Spiral hydraulic pump |
| 12/26/2007 | CN101092958A 液压泵的转子 Pump rotor |
| 12/26/2007 | CN100357605C Cycloidal pin gear hydraulic pump |
| 12/20/2007 | US20070292297 Vane Pump Consisting A Two-Part Stator |
| 12/19/2007 | EP1866544A1 Rotary pump |
| 12/19/2007 | CN200993098Y Hydraulic coupled speed-regulating uance self-priming pump |
| 12/19/2007 | CN200993097Y Multi-passageway commutating cam rotor pump |
| 12/19/2007 | CN100356066C 机油泵 Oil Pump |
| 12/19/2007 | CN100356063C 油泵 Pump |
| 12/18/2007 | CA2447565C Downhole motor locking assembly and method |
| 12/13/2007 | WO2007143273A2 Evacuation device |
| 12/13/2007 | WO2007141511A1 Combined gas and liquid pump |
| 12/13/2007 | WO2007140758A1 Vane pump |
| 12/13/2007 | WO2007140679A1 A gear pump |
| 12/13/2007 | WO2007140514A1 Vane pump for pumping hydraulic fluid |
| 12/13/2007 | WO2007057848A3 Pump apparatus and methods for using same |
| 12/13/2007 | US20070286759 Floating dam positive displacement pump |
| 12/12/2007 | EP1864023A1 Clamping device |
| 12/12/2007 | CN200989302Y Geal oil pump of automatic speed variator control for vehicle use |
| 12/12/2007 | CN200989301Y Vertical high-temperature double-screw cargo oil pump unit for ship use |
| 12/12/2007 | CN200989300Y Hydraulic electric machine internal engaging gear pump |
| 12/12/2007 | CN101087960A Variable delivery vane pump, in particular for oil |
| 12/12/2007 | CN101087959A Variable delivery vane pump |
| 12/12/2007 | CN101087958A Inner rotor for internal gear pump |
| 12/12/2007 | CN100354522C Variable displacement pump |