| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 10/30/2008 | CA2663921A1 Rotary fluid pressure device with modular multi-speed control mechanism |
| 10/29/2008 | EP1985859A2 Hydraulic pump system with integrated distributor valve |
| 10/29/2008 | EP1861319A4 Methods and apparatus for pumping and dispensing |
| 10/29/2008 | CN201141357Y Reformed bidirectional oil pumping machine |
| 10/29/2008 | CN201141356Y High-efficiency energy-saving water pump |
| 10/29/2008 | CN100429403C Gear pump with built in outer controlled overflow valve |
| 10/29/2008 | CN100429402C Eccentric screw pump |
| 10/28/2008 | US7442019 Stator of a moineau-pump |
| 10/28/2008 | US7442018 Compressor having an oil residue pool |
| 10/28/2008 | US7441534 Rotary engine system |
| 10/28/2008 | CA2321636C Rotary-piston machine |
| 10/23/2008 | WO2008125106A1 Gerotor motor |
| 10/23/2008 | DE202008011078U1 Doppeltbewegliche Kuppelstange Double Portable coupling rod |
| 10/23/2008 | CA2684282A1 A painting apparatus |
| 10/22/2008 | EP1983193A2 Apparatus for transporting fluid |
| 10/22/2008 | EP1982073A1 Hydrostatic energy generation unit |
| 10/22/2008 | CN201137570Y Vane pump rotor possessing concave surface |
| 10/22/2008 | CN201137569Y Vane pump vane possessing oil tank |
| 10/22/2008 | CN201137568Y Floating side board high pressure gear pump body unloading device |
| 10/22/2008 | CN201137548Y Minisize axial-flow cycloid hydraulic motor |
| 10/22/2008 | CN101292087A Net-displacement control of fluid motors and pumps |
| 10/22/2008 | CN101290008A Low speed heavy pressure vane pump for hydraulic bicycle |
| 10/21/2008 | US7438543 Oscillating slide machine |
| 10/21/2008 | US7438540 Two-stage rotary compressor |
| 10/16/2008 | WO2008124174A1 Variable displacement dual vane pump |
| 10/16/2008 | US20080253913 Vane Pump |
| 10/16/2008 | US20080250812 Multi-Circuit Refrigerant System Utilizing Pulse Width Modulation Techniques |
| 10/16/2008 | DE102008014243A1 Automotive rotary pump for engine cooling oil has partition rotors whose pressure varies with direction of rotation |
| 10/16/2008 | DE102007017652A1 Rotationskolbenmaschine Rotary piston engine |
| 10/15/2008 | EP1980751A1 Positive-displacement fluid pump comprising a fluoropolymer-containing film |
| 10/15/2008 | EP1523624B1 Discharge porting design for screw compressor |
| 10/15/2008 | EP1073826B1 Hydraulic motor plates |
| 10/15/2008 | CN201133348Y Heavy pressure S ring nest pump |
| 10/15/2008 | CN201133347Y Reducing gear oil pump |
| 10/15/2008 | CN201133346Y Ceramic rotary-plunger pump |
| 10/15/2008 | CN100425837C Vane pump |
| 10/14/2008 | US7437215 Method and system for improving pump efficiency and productivity under power disturbance conditions |
| 10/14/2008 | US7435065 Rotary fluid machine having a swinging bushing with a swing center disposed radially inwardly of an annular midline of an annular piston |
| 10/09/2008 | WO2008120047A1 Brake releasing mechanism and braking system |
| 10/09/2008 | WO2007084376A3 Rotary scissors action machine |
| 10/09/2008 | US20080247894 Vane Pump Using Line Pressure to Directly Regulate Displacement |
| 10/08/2008 | CN201129299Y Engine oil pump |
| 10/08/2008 | CN201129298Y Hydraulic gear pump driving device |
| 10/08/2008 | CN201129297Y Double screw rod electric submersible pump |
| 10/08/2008 | CN201129296Y Vertical type double-layer pump body high temperature double-screw rod cargo oil pump |
| 10/08/2008 | CN201129295Y High pressure gear ring pump internal tooth ring static pressure unloading device |
| 10/08/2008 | CN201129268Y Variable oil motor |
| 10/08/2008 | CN101283199A Transmission with orbital gears |
| 10/08/2008 | CN101279646A Method for realizing quantitative transportation of material and special low pulsating rotary pump therefor |
| 10/08/2008 | CN100424356C Vane supporting structure of compressor |
| 10/07/2008 | US7431007 Apparatus adapted to perform as compressor, motor, pump and internal combustion engine |
| 10/07/2008 | CA2311895C Progressive cavity motors using composite materials |
| 10/02/2008 | WO2008117604A1 Vane pump |
| 10/02/2008 | US20080240968 Low Cost Gear Fuel Pump |
| 10/02/2008 | US20080240966 Hydraulic machine |
| 10/02/2008 | US20080240960 Pump |
| 10/02/2008 | US20080240955 Hydraulic pump |
| 10/02/2008 | US20080240945 Motor/Pump Unit |
| 10/02/2008 | DE102007015626A1 Hydraulische Maschine Hydraulic machine |
| 10/02/2008 | DE102007015170A1 Fluid energy machine, e.g. turbines, pumps, compressors and engines, has circular housing with fluid inlet and fluid outlet and circular rotating body, which is coaxially arranged and pivoted in interior of housing |
| 10/01/2008 | EP1974145A2 Rotary fluid pressure device and improved parking lock assembly therefor |
| 10/01/2008 | EP1558796B1 Device and method for injecting a liquid colour into a polymer melt |
| 10/01/2008 | CN201125865Y Engine oil pump cap |
| 10/01/2008 | CN201125863Y Compressor oil pump |
| 10/01/2008 | CN101275567A Powder metal scrolls |
| 09/25/2008 | WO2008113712A1 Gear wheel pump |
| 09/25/2008 | WO2008113396A1 Lubricating pinion and lubricating device |
| 09/25/2008 | DE112006001186T5 Verbesserte Flügelpumpe Improved vane pump |
| 09/25/2008 | DE102008007464A1 Piston used in a wind energy producing device comprises fluid lines arranged in a flow control unit |
| 09/24/2008 | EP1537335B1 Device for adjusting the pumping capacity of a lubricant pump for an internal combustion engine |
| 09/24/2008 | CN201121581Y High pressure-resistant anti-overloading gear pump |
| 09/24/2008 | CN201121580Y Magnetically-actuated gear pump |
| 09/24/2008 | CN201121579Y Oil pump of balancing oil scouring machine |
| 09/24/2008 | CN201121578Y Circular conical surface transmission oil pump |
| 09/24/2008 | CN201121577Y Anti-clamping bidirectional compound gear pump |
| 09/24/2008 | CN201121555Y Dual-spindle output shaft valve flow distribution cycloid hydraulic motor |
| 09/24/2008 | CN101273200A Vane pump |
| 09/24/2008 | CN101270751A Scroll compressor |
| 09/24/2008 | CN101270748A Balancing type cam rotor pump |
| 09/24/2008 | CN101270747A Variable displacement vane pump |
| 09/24/2008 | CN101270746A Oil-leading stripping pump |
| 09/24/2008 | CN100420861C Connection structure between a plastic gear and a support shaft |
| 09/23/2008 | US7427192 Toothing of a toothed wheel |
| 09/23/2008 | US7427191 Oil pump |
| 09/23/2008 | CA2311175C Progressive cavity pump with composite stator and its manufacturing process thereof |
| 09/18/2008 | WO2008111270A1 Oil pump rotor |
| 09/18/2008 | WO2008111017A1 Improved geared hydraulic apparatus |
| 09/18/2008 | US20080226480 Multi-Stage Trochoidal Vacuum Pump |
| 09/18/2008 | DE102008014235A1 Exzenterschneckenpumpe mit Pumpengehäuse Pump with the pump housing |
| 09/17/2008 | EP1970570A2 Internal gear pump |
| 09/17/2008 | EP1970569A1 Eccentric screw pump with pump casing |
| 09/17/2008 | EP1968747A2 Fluid free interface for a fluidic analyzer |
| 09/17/2008 | CN101268278A Oil pump rotor |
| 09/17/2008 | CN101265912A Double-acting rotor pump double flow stator |
| 09/17/2008 | CN101265900A Shielded electric pump |
| 09/17/2008 | CN101265899A Double drive large displacement smelt gear pump |
| 09/17/2008 | CN101265898A Planet cyclic gear train type polygonal rotor pump |
| 09/17/2008 | CN100419266C Stator system |
| 09/17/2008 | CN100419265C Motor-mounted internal gear pump and electronic device |
| 09/16/2008 | US7425121 Rotary vane pump |