| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 09/16/2008 | CA2333948C Internally profiled stator tube |
| 09/12/2008 | WO2008108122A1 Rotor drive mechanism, shaft seal structure for eccentric shaft, and pump device |
| 09/12/2008 | WO2008106990A1 Compressor device |
| 09/11/2008 | US20080219877 Rotor, a Method for Producing Such Rotor and a Pump Comprising Such Rotor |
| 09/11/2008 | US20080219874 Variable displacement vane pump |
| 09/11/2008 | US20080219873 Vane pump |
| 09/11/2008 | US20080219872 Scroll machine having counterweights with changeable cavity |
| 09/11/2008 | DE102007011056A1 Fluid-supply device for supplying a coolant in a motor vehicle for ventilator wheels for steering devices has a casing for holding a vane-cell pump linked via a drive shaft to a driving wheel driven on an axis of rotation |
| 09/10/2008 | EP1967733A2 Magnet driven vane pump |
| 09/10/2008 | EP1828611B1 Vane pump |
| 09/10/2008 | CN201111554Y Valve base ring oil transfer pump |
| 09/10/2008 | CN101260882A Variable displacement vane pump |
| 09/10/2008 | CN101260881A Pump |
| 09/10/2008 | CN101260880A Cavity-variable type gear pump |
| 09/10/2008 | CN100417817C Double end compound tooth type labyrinth screw pump |
| 09/10/2008 | CN100417816C Screw profile for high-flow high-pressure three-screw pump |
| 09/09/2008 | US7421998 Modular engine |
| 09/09/2008 | CA2510114C Pump with cutting assembly |
| 09/04/2008 | WO2008106198A1 Stamped steel lamination process to produce gerotor inner and outer rotors for pump applications |
| 09/04/2008 | WO2008105007A1 Cartridge -type single-screw pump and dye-meter equipped with such pump |
| 09/04/2008 | WO2008031012A3 Long life telescoping gear pumps and motors |
| 09/04/2008 | DE102007061833A1 Vane cell machine for use as lubricating oil pump of internal-combustion engine, has vane guiding element with outer guiding surface at which set of inner radial guiding sections of vanes are permanently supported |
| 09/03/2008 | EP1965080A1 Electric internal gear pump unit and electric oil pump apparatus |
| 09/03/2008 | CN101255862A Differential pressure capacity type vane pump |
| 09/02/2008 | CA2348812C Rotary piston engine having a gear pump and an oil metering pump |
| 09/02/2008 | CA2269211C Compact scroll fluid device |
| 08/28/2008 | WO2008103194A1 Fuel pump for engine |
| 08/28/2008 | WO2008101904A1 Gerotor pump |
| 08/28/2008 | US20080206078 Electric pump unit and electric oil pump apparatus |
| 08/28/2008 | US20080202589 Fluid-Flow System, Device and Method |
| 08/28/2008 | DE102007007683A1 Component e.g. oil pump, drive for internal-combustion engine of motor vehicle, has main drive shaft coupled with aggregate drive shaft by gear mechanism that is formed as hydraulic pump |
| 08/27/2008 | EP1961961A2 Oil pump pressure control device |
| 08/27/2008 | EP1960672A1 Noise reduced variable displacement vane pump |
| 08/27/2008 | CN201106554Y Abrasion-proof gear pump |
| 08/27/2008 | CN201106553Y Lubricating pump |
| 08/27/2008 | CN201106522Y Axial transmission collocation axis valve flow-matching cycloid hydraulic motor |
| 08/27/2008 | CN101253329A Gear pump with improved inlet port |
| 08/27/2008 | CN101251109A Automatic system for supplying roily oil |
| 08/27/2008 | CN101251108A Oil pump pressure control device |
| 08/27/2008 | CN101251107A Multilevel inner series dual supercharging double-circular-arc gear pump |
| 08/27/2008 | CN101251106A Rotary type fluid machine transfiguration mechanism |
| 08/27/2008 | CN101251105A Compressor |
| 08/27/2008 | CN101251104A Gear pump using water as pressure medium |
| 08/21/2008 | US20080199340 Screw Displacement Pump |
| 08/21/2008 | US20080199339 Safe backspin device |
| 08/21/2008 | DE102007008265A1 Gerotorpumpe Gerotor pump |
| 08/21/2008 | DE102007007293A1 Adjustable positive-displacement pump for servo steering system of motor vehicle, has inserting unit inserted at inner surface of curve ring and designed such that sliding friction between rotor units and contact surface is reduced |
| 08/20/2008 | EP1959143A2 Oil pump pressure control device |
| 08/20/2008 | CN201103541Y Oil-free lubrication screw type heat pump |
| 08/20/2008 | CN201103540Y Cycloidal teeth oil pump |
| 08/20/2008 | CN201103539Y Dual-shaft variable-velocity rotary pump |
| 08/20/2008 | CN101248276A Gear pump |
| 08/20/2008 | CN101248275A Pump body |
| 08/20/2008 | CN100412320C Gerotor mechanism for a screw hydraulic machine |
| 08/19/2008 | US7413416 Progressing cavity pump |
| 08/19/2008 | US7412831 Integral cooling system for rotary engine |
| 08/14/2008 | DE102007006716A1 Positive-displacement pump i.e. single-stroke sliding vane pump, for servo-steering device of motor vehicle, has front surface with wall surface deformed so that gap is formed or enlarged, through which fluid is flown from work cell |
| 08/14/2008 | DE102007006697A1 Device for balancing torque for internal-combustion engine, has two balancing shaft that are arranged in housing, where external gear wheels of balancing shafts are provided in imbalance manner |
| 08/13/2008 | EP1855907B1 Differential gear unit for motor vehicles comprising an active control mechanism for the driving force distribution |
| 08/13/2008 | CN101240795A 螺杆泵转子和减小滑流的方法 Screw rotor and method of reducing the slipstream |
| 08/13/2008 | CN101240724A Pressure regulating variable displacement vane pump |
| 08/12/2008 | US7410349 High efficiency gerotor pump |
| 08/12/2008 | US7410346 Oil pump |
| 08/12/2008 | CA2425487C Hinged rotor internal combustion engine |
| 08/09/2008 | CA2619195A1 Screw pump rotor and method of reducing slip flow |
| 08/07/2008 | WO2008092594A1 Temperature control valve device |
| 08/07/2008 | WO2008092571A1 Vane pump for conveying a fluid |
| 08/07/2008 | US20080187451 Feed Unit |
| 08/07/2008 | US20080187450 Crescent Gear Pump with Novel Rotor Set |
| 08/06/2008 | EP1952001A1 Internal combustion engine |
| 08/06/2008 | CN201096088Y Portable electric oil refiller |
| 08/06/2008 | CN101235727A Displacement type fluid machine linkage displacement-variable device |
| 08/06/2008 | CN100408858C Vane-cell pump provided with a deep-drawn metal-sheet pot |
| 08/05/2008 | US7407373 Internal gear pump and an inner rotor of such a pump |
| 08/05/2008 | US7407372 Progressing cavity pump or motor |
| 08/05/2008 | CA2618414A1 Scroll compressor with a refrigerant injection system |
| 07/31/2008 | WO2008091262A1 Electroformed stator tube for a progressing cavity apparatus |
| 07/31/2008 | WO2007019018A3 Controlled-clearance sealing compressor devices |
| 07/31/2008 | US20080181802 Scroll fluid machine |
| 07/31/2008 | US20080181796 Pump |
| 07/31/2008 | US20080178953 Rotary valve assembly |
| 07/31/2008 | CA2673720A1 Electroformed stator tube for a progressing cavity apparatus |
| 07/30/2008 | EP1950318A1 Iron-base sintered parts, process for production of iron-base sintered parts, and actuators |
| 07/30/2008 | EP1948935A1 Pump |
| 07/30/2008 | EP1033474B1 Positive-displacement piston mechanism of rotary piston structure |
| 07/30/2008 | CN201092957Y Compensation pressure unit for oil pump |
| 07/30/2008 | CN101233297A Improved vane pump |
| 07/30/2008 | CN100406735C Oscillating slide machine |
| 07/29/2008 | US7404705 Blending pump assembly |
| 07/29/2008 | CA2379792C Improved pump |
| 07/24/2008 | WO2008086815A1 Method of manufacturing a hydraulic pump with inclined vanes |
| 07/24/2008 | WO2008086575A1 A pump having a stationary helical spiral flange and a slotted impeller shaft rotatable within |
| 07/24/2008 | WO2008050212A3 Variable delivery rotary vane pump |
| 07/24/2008 | WO2007136998A3 Shock valve for hydraulic device |
| 07/23/2008 | EP1945952A1 Method of generation of a surgeless flow of the working fluid and a device for its implementation |
| 07/23/2008 | EP1945920A1 Lubrication system and internal combustion engine comprising such a system |
| 07/23/2008 | EP1805396B1 Rotary pump with a vane |
| 07/23/2008 | EP1497537B1 Hydraulic motor |
| 07/23/2008 | CN201090436Y Volume type pump |
| 07/23/2008 | CN201090435Y Volume type sliding-vane pump |