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)
06/2010
06/15/2010US7736139 Motor driven by pressure medium supplied from an external pressure source
06/15/2010US7736134 Vane machine, in particular vane pump
06/15/2010CA2510139C Method and system for improving pump efficiency and productivity under power disturbance conditions
06/10/2010WO2010063705A1 Tooth profile for rotors of positive displacement external gear pumps
06/10/2010WO2009088827A3 Progressive cavity apparatus with transducer and methods of forming and use
06/10/2010DE102009029599A1 Servolenkungspumpe Power steering pump
06/10/2010DE102008054419A1 Gear pump, particularly for generating brake pressure in slip controllable hydraulic brake system of motor vehicle, has pump housing and gear wheel arrangement accommodated inside pump housing
06/10/2010DE102004019698B4 Gewendeltes Rohrelement Coiled tubing element
06/09/2010CN201504146U Motor with safe and quick linkage transmission structure
06/09/2010CN201502528U Rotor-type pump
06/09/2010CN201502527U Power tool oil pressure cylinder structure
06/09/2010CN201502526U Multi-stage combined pump
06/09/2010CN201502525U Glue supply pump for cigarette making machine
06/09/2010CN201502524U Gas-liquid mixing pump
06/09/2010CN1796787B Trochoid oil pump
06/09/2010CN101725523A Down-hole annular sucking screw pump
06/09/2010CN101725522A Scroll compressor
06/08/2010US7730869 Housing wheel engine
06/03/2010WO2010060416A2 Sliding vane pump
06/03/2010US20100135835 Variable-displacement vane oil pump
06/02/2010DE102008059720A1 Flügelzellenpumpe Vane pump
06/02/2010DE102005025816B4 Schraubenspindelpumpe Screw Pump
06/02/2010CN201496268U Improved vane pump
06/02/2010CN201496267U Novel dry type rotary vane pump
06/02/2010CN201496266U High-performance water hydraulic vane pump
06/02/2010CN201496265U Energy-saving micro high-pressure pump
06/02/2010CN201496264U Energy-saving micro high-pressure pump
06/02/2010CN201496263U Steering pump for power steering system of automobile
06/02/2010CN201496262U Engine oil pump
06/02/2010CN201496261U Engine oil pump assembly
06/02/2010CN101718273A Liquid pump of rotary cylinder piston
06/02/2010CN101718272A Double-action rotor pump
06/02/2010CN101338747B Double oil path vane pump /motor
06/02/2010CN101107447B Pump, especially slurry pump
06/01/2010US7726957 Rotating piston machine with dual suspension
06/01/2010US7726285 Diesel engine and supercharger
05/2010
05/27/2010WO2010058234A1 Surface finishes for use in oil pumps and methods of providing surface finishes in oil pumps
05/27/2010WO2010057838A2 Fuel pump for internal combustion engines
05/27/2010WO2010057702A2 Fuel pump
05/27/2010WO2010057448A2 Displacement sump pump
05/27/2010US20100129253 Oil pump rotor
05/27/2010US20100129252 Pumping-out apparatus and method for pumping out stored fluid
05/27/2010US20100129239 Fully submerged integrated electric oil pump
05/27/2010CA2747074A1 Fuel pump for internal combustion engines
05/26/2010EP2188529A2 Accurate powder metal component, assembly and method
05/26/2010EP2188526A1 Methods for manufacturing pump-heads having a desired internal clearance for rotary member
05/26/2010CN201486853U Structure of floating central internal gear of planetary compound gear pump
05/26/2010CN201486852U Magnetism-driven twin-screw pump
05/26/2010CN201486851U Simple three-screw pump
05/26/2010CN201486850U Relative-pressure type gas-liquid dual-purpose compressor with double rotors and a plurality of rotating vanes
05/26/2010CN201486849U Gear oil pump with shaft head for high-speed pump
05/26/2010CN201486848U High-temperature magnetic gear pump
05/26/2010CN201486743U Noncircular planetary wheel hydraulic motor
05/26/2010CN1576596B Trochoid oil pump
05/26/2010CN101713400A Tooth-shaped screw rod with strict sealing and approximate dynamic balance
05/26/2010CN101713399A Hydrostatic separable speed changer
05/26/2010CN101087959B Variable delivery vane pump
05/25/2010US7722343 Sealed-type rotary compressor and refrigerating cycle device
05/25/2010US7722340 Rotary type fluid machine
05/25/2010US7721701 Rotary scissors action machine
05/25/2010CA2575565C Eccentric screw pump having conical sealing surfaces
05/20/2010WO2010054864A1 Rotary machine
05/20/2010DE102009053650A1 Getriebepumpe Gear pump
05/19/2010EP2187057A1 Gerotor pump
05/19/2010CN201474968U Energy-saving small-sized high pressure pump
05/19/2010CN201474967U Vane pump
05/19/2010CN201474966U Novel heat-insulation special pump
05/19/2010CN201474965U Multifunctional driving element for oil hybrid power vehicle
05/19/2010CN201474964U Water pump
05/19/2010CN201474963U External magnetic drive double-screw pump
05/19/2010CN201474962U Dual input shaft differential gear pump
05/19/2010CN201474961U Planetary internal meshing gear pump
05/19/2010CN101711313A Integrated internal gear pump with an electric motor
05/19/2010CN101709698A Screw tooth form of large-flow and high-pressure double-screw rod pump with unequal teeth number
05/19/2010CN101709697A Internal loop piston pump
05/18/2010US7717687 Scroll compressor with compliant retainer
05/18/2010CA2644168A1 Agitator tool for progressive cavity pump
05/14/2010WO2010051640A1 Fully submerged integrated electric oil pump
05/14/2010CA2742148A1 Fully submerged integrated electric oil pump
05/13/2010US20100119398 Gerotor Pump
05/13/2010US20100119396 Variable displacement dual vane pump
05/12/2010CN201461864U Single-worm engaging mechanism with reducing generatrix secondary envelope single-worm molded line
05/12/2010CN201461398U Vertical high-temperature double screw pump body
05/12/2010CN201461397U Transmission structure of hydraulic gear pump and motor
05/12/2010CN201461395U Vehicle power steering oil pump
05/12/2010CN201461394U Ten-groove rotor steering pump
05/12/2010CN201461393U Steering pump of vehicle
05/12/2010CN201461392U Two-way double-acting blade pump
05/12/2010CN201461391U Hydraulic gear pump
05/12/2010CN201461390U Pressure-regulating gear pump
05/12/2010CN201461364U Gear pump intelligent test bed
05/12/2010CN201457176U Vehicle-mounted water supply system
05/12/2010CN201454915U High-pressure cleaner
05/12/2010CN1975167B Double-rotary pump
05/12/2010CN101705937A Skewed tooth gear pump
05/11/2010US7713041 Gear pump having optimal axial play
05/11/2010US7713039 Helical screw compressor having a vented sealing arrangement
05/06/2010WO2010048894A1 Translational rotor rotating compressor
05/06/2010US20100111742 Rotary positive displacement pump with magnetic coupling having integrated cooling system
05/06/2010US20100111740 Scroll-type fluid displacement apparatus with improved cooling system
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