Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 2 - Rotary-piston machines or pumps
Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
09/2010
09/10/2010WO2010057702A3 Fuel pump
09/10/2010WO2010019337A9 Ring seals for screw pump rotors
09/10/2010CA2754139A1 Eccentric screw pump
09/09/2010US20100226809 Pivoting vane pump/motor
09/09/2010DE102009004456A1 Mengenregelbare Zellenpumpe mit schwenkbarem Steuerschieber A volume-controllable vane pump with pivoting control slide
09/09/2010DE102009001359A1 Flügelzellenpumpe Vane pump
09/08/2010CN201574928U Three-oil-mouth steering vane pump for lowering oil temperature
09/08/2010CN201574927U Gear pump
09/08/2010CN201574926U Economic three-screw pump
09/08/2010CN101828037A Internal gear pump for a brake system
09/08/2010CN101825085A Variable-volume type multi-chamber hydraulic water pump
09/08/2010CN101825084A Gear pump for food processing
09/07/2010US7789642 Gear pump and method of producing the same
09/07/2010CA2430004C Rotary positive-displacement pump with meshing gear wheels without encapsulation, and gear wheel for such a positive-displacement pump
09/02/2010WO2010098690A1 Oil-well screw pump driven from the wellhead
09/02/2010WO2010097086A1 Hydraulic motor or pump
09/02/2010WO2010096924A1 Integrated electric vane oil pump
09/02/2010WO2010012993A3 Pump
09/02/2010CA2753510A1 Integrated electric vane oil pump
09/01/2010EP2222938A1 Bearing unit of a fluid pump
09/01/2010CN201568711U Rotor engine oil pump
09/01/2010CN201568296U Eccentric pump
09/01/2010CN201568295U Circulation flow type thick oil pump
09/01/2010CN201568183U Gear type electric oil burning pump
09/01/2010CN1993551B Eccentric screw pump having conical sealing surfaces
09/01/2010CN101821510A Internal gear pump rotor, and internal gear pump using the rotor
09/01/2010CN101173660B Variable displacement pump
08/2010
08/31/2010US7785087 Vane cell pump having pistons guided in cylinder for adjustment of the stator
08/27/2010CA2656654A1 Mobile progressive cavity pump service unit
08/26/2010WO2010096256A2 Sliding vane pump with internal cam ring
08/26/2010WO2010095505A1 Internal gear pump
08/26/2010WO2010094510A1 Synchronization gearbox for a multi-axle rotating piston machine
08/26/2010WO2010094146A1 A rotor rotation-type pump
08/26/2010US20100215538 Fuel pump
08/26/2010DE10305781B4 Mehrstufige Schmierölpumpe Multi-stage oil pump
08/26/2010DE102009010107A1 Eccentric spiral pump for use in domestic waste water drainage system, has rotor provided with spiral-shaped or screw-shaped outer contour that is driven by drive motor, where outer surface of rotor is formed by rubber or flexible plastic
08/25/2010EP2220942A2 Rotary filling pump with auxiliary cam
08/25/2010EP2220373A1 Pump assembly for synchronous pressurization of two fluid circuits
08/25/2010EP1521914B1 Radial piston pump
08/25/2010CN201560940U Oil transmission gear pump
08/25/2010CN1982714B Oil pump for scroll compressor
08/25/2010CN1793652B Motor-mounted internal gear pump and electronic device
08/25/2010CN101813087A Vortex fluid machinery
08/25/2010CN101813085A Self-sucking energy-saving high-efficiency water pump
08/24/2010US7780428 Fluid-guiding and electric conducting system for suspended electric submersible progressing cavity pump (PCP)
08/24/2010US7780427 Two-stage rotary compressor
08/24/2010US7780426 Rotary compressor defining gaps of different sizes
08/24/2010US7779822 Intake assembly with integral resonators
08/19/2010WO2010092320A1 Pump
08/19/2010WO2010074967A3 Centripetal pumping stage and vacuum pump incorporating such pumping stage
08/19/2010WO2010037703A3 Rotary pump for a vehicle
08/19/2010DE102005016670B4 Lackdosierpumpe Lackdosierpumpe
08/19/2010CA2751727A1 Pump
08/18/2010CN201554648U Driving structure for gear pump of walking motor-driven rice transplanter
08/18/2010CN201554645U Ring sliding plate pump
08/18/2010CN101809289A Accurate powder metal component, assembly and method
08/18/2010CN101809257A SCR system and method for the purging thereof
08/18/2010CN101198766B Balancing plate-shuttle ball
08/18/2010CN101173661B Variable displacement vane pump and method of manufacturing the same
08/17/2010US7775782 Variable capacity rotary compressor having vane controller
08/17/2010CA2683339C Method and system for improving pump efficiency and productivity under power disturbance conditions
08/17/2010CA2683320C Method and system for improving pump efficiency and productivity under power disturbance conditions
08/12/2010WO2010089614A1 Rotary piston machine with a spring loaded rotor
08/12/2010US20100202912 Apparatus for Cleaning Rotation Body and Vacuum Pump Having the Same
08/12/2010US20100200072 Gear pump and method of delivering fluid using such a pump
08/12/2010DE10356183B4 Hydrostatischer Motor mit radialer Verteilung Hydrostatic engine with radial distribution
08/12/2010DE102009008430A1 Tube-shaped shell wall manufacturing method for elastomer stator of eccentric screw pump that is utilized for conveying plaster, involves deforming non-pre-formed semi-finished product corresponding to negative mold
08/11/2010EP2216550A2 Gear wheel pump with shaft seal
08/11/2010EP2216501A1 Pump
08/11/2010CN201546952U Double-acting rotor pump
08/11/2010CN201546951U Alien-cavity vane measuring pump
08/11/2010CN201546950U Radial parallel gear pump
08/11/2010CN201546949U Special submerged pump for oil tanker oil unloading
08/11/2010CN201546948U Internal loop piston-type pump
08/11/2010CN101802406A 齿轮泵 Gear pumps
08/11/2010CN101799110A Multidimensional seal integral-type oil pump
08/11/2010CN101799010A Foaming pump
08/11/2010CN101253329B Gear pump with improved inlet port
08/11/2010CN101248276B Gear pump
08/05/2010WO2010006575A3 Positive-displacement machine
08/05/2010US20100196182 Eccentric screw pump with split stator
08/04/2010EP2213906A2 A gear and a fluid machine with a pair of gears
08/04/2010EP2213835A1 Device and assembly for metering a viscous medium and method for producing same
08/04/2010EP2212559A1 Internal gear pump for a brake system
08/04/2010EP2212521A1 Sliding vane pump
08/04/2010CN201539403U Non-vibration rotor and rotor pump
08/04/2010CN201539335U Electric oil pump
08/04/2010CN101796301A Eccentric worm pump with split stator
08/04/2010CN101793249A Gear pump
08/03/2010US7766634 Crescent gear pump with novel rotor set
08/03/2010US7766633 Scroll compressor having a slider with a flat surface slidable and fitted in a notch part of a main shaft
08/03/2010US7766632 Scroll compressor with improved oil flow pathways
07/2010
07/29/2010WO2010084537A1 Cover-equipped stator for uniaxial eccentric screw pump, and uniaxial eccentric screw pump
07/29/2010WO2009127831A3 Drill motor assembly
07/29/2010US20100189586 Pump Housing
07/29/2010US20100189582 Dual stage pump having intermittent mid-shift load supports
07/28/2010EP2211059A2 Separation system between the high-pressure chamber and the low-pressure chamber in a volumetric pump
07/28/2010CN201535244U Oil pump for step axle hole machine
07/28/2010CN1802507B G-rotor pump
07/28/2010CN101790622A Improved geared hydraulic apparatus
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