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)
04/2014
04/24/2014WO2013127626A3 Pump arrangement
04/24/2014WO2013110037A3 Hollow gerotor
04/24/2014US20140112816 Internal gear pump
04/24/2014DE102012219132A1 Innenzahnradpumpe für eine hydraulische Fahrzeugbremsanlage Internal gear pump for a hydraulic vehicle brake system
04/24/2014DE102012219118A1 Innenzahnradpumpe Internal gear pump
04/24/2014DE102012219114A1 Innenzahnradpumpe für eine hydraulische Fahrzeugbremsanlage Internal gear pump for a hydraulic vehicle brake system
04/24/2014DE102012219067A1 Vane machine e.g. vane pump, for compressing and/or decompressing diesel, has contour supported against wing external ends, so that fluid cell is formed between wing and contour, and peripheral portion that is not in contact with housing
04/24/2014DE102012218972A1 Vane pump for use in machine housing, has external rotor and inner rotor that are connected over four wings and swingably supported in bearing axial stop for wings provided in region of swingable bearing
04/24/2014DE102010051830B4 Regelölpumpe mit Untersetzungsgetriebe Rule oil pump with reduction gear
04/23/2014EP2722482A1 Rotary piston positive displacement machine
04/23/2014EP2721301A1 Immersion pump and method for assembling an immersion pump
04/23/2014CN203560095U Piston-hinged type variable-displacement vane pump
04/23/2014CN203560093U Rotor pump
04/23/2014CN203560092U Internal gear pump
04/23/2014CN203560091U Internal gear machine
04/23/2014CN103742407A Anti-loosening gear pump
04/23/2014CN103742406A Four-vane differential velocity pump driven by Fourier noncircular gears
04/23/2014CN103742405A Eight-blade differential pump driven by elliptic non-circular gears
04/23/2014CN103742404A Six-blade differential pump driven by elliptic non-circular gears
04/23/2014CN102337930B Star rotary rotation device
04/23/2014CN102089522B 泵单元 Pump unit
04/23/2014CN101842594B Friction drive pump for transfer cases, etc.
04/22/2014US8702409 Screw compressor having male and female rotors with profiles generated by enveloping a rack profile
04/22/2014US8702408 Slide for use in a screw compressor
04/22/2014US8702407 Multistage roots vacuum pump having different tip radius and meshing clearance from inlet stage to exhaust stage
04/22/2014US8702406 Compressor alignment method and device
04/22/2014CA2740682C Insertable surface-driven pump
04/22/2014CA2621041C Enclosed circulation tool for a well
04/17/2014WO2014057811A1 Vane-type compressor
04/17/2014WO2014057649A2 Balanced Pressure Dual Pump
04/17/2014WO2013164111A3 Internal-gear pump with filler piece
04/17/2014US20140105776 Geared positive-displacement pump with self-compensating gear chamber
04/17/2014DE102012022356B3 Rotary machine, has housing end face forming cone or truncated cone shape with opening and edge angles, where tip of opening angle faces from center such that surfaces adapts between wings and face by adjusting shape in radial direction
04/16/2014EP2719861A1 Gerotor motor balancing plate structure
04/16/2014CN203548196U Internal drainage type variable vane pump
04/16/2014CN203548195U Fluid machine with rotating wheel double-vortex mechanism
04/16/2014CN203548194U Gear oil pump with single pump body provided with two stages of oil outlets
04/16/2014CN203548193U Simple double-screw pump
04/16/2014CN203548192U Portable pumper
04/16/2014CN203548191U Inner screw type fluid conveying device
04/16/2014CN203548190U Screw concrete delivery pump
04/16/2014CN203548189U Worm-groove rotary vane type machinery
04/16/2014CN203548188U Planar worm-groove rotary vane type machinery
04/16/2014CN103732921A Micropump, bearing element for micropump, and working method
04/16/2014CN103727028A Double-acting impeller pump
04/16/2014CN103727027A Multiple-blade oil pump
04/16/2014CN103727026A Inner engaged gear pump
04/16/2014CN103727025A Gerotor motor balancing plate structure
04/16/2014CN102400913B Seal type tooth-form molded line screw rod
04/16/2014CN102362100B Drive device
04/10/2014US20140099226 Simplified roots-type blower
04/10/2014DE102012218397A1 Hydrostatic machine such as ring gear machine, comprises several sound-damping elements which are arranged in the sound transfer path formed between the machine housing and the rotating displacer unit
04/10/2014DE102012218097A1 Vacuum pump for ventilation of brake booster in motor car, has wing guided in extending slot of drive shaft or rotor, and housing comprising housing parts that are movable in radial direction with respect to longitudinal axis of shaft
04/10/2014DE102007059783B4 Ölpumpe und Montageverfahren der Ölpumpe Oil pump and the oil pump assembly method
04/10/2014DE102004020603B4 Volumenstromgeregelte Flügelzellenpumpe Volume flow-controlled vane pump
04/09/2014EP2716912A1 Balanced pressure dual pump
04/09/2014EP2716389A2 A process for manufacturing an oil-pump cover and a cover
04/09/2014EP2715137A2 Simplified roots-type blower
04/09/2014CN203532246U High-low pressure duplicate gear pump
04/09/2014CN203532245U Gear metering pump
04/09/2014CN203532244U Rotor pump
04/09/2014CN103717901A Positive-displacement rotary pump having a positive-displacement auxiliary pumping system
04/09/2014CN103717900A Gearbox pump
04/09/2014CN103711692A Piston control type variable displacement vane pump
04/09/2014CN103711691A Single-screw pump capable of balancing axial force and radial force
04/09/2014CN103711690A High-property high-pressure three-screw pump
04/09/2014CN102187069B Rotary pump for vehicle
04/08/2014US8690555 Two-stage rotary expander, expander-compressor unit, and refrigeration cycle apparatus
04/08/2014US8689766 Spherical two stroke engine system
04/08/2014CA2624458C Gasket part for a pump
04/03/2014WO2014050724A1 Variable-capacity vane pump
04/03/2014WO2014050712A1 Variable-displacement vane pump
04/03/2014WO2014048612A2 Internal gear pump for a hydraulic vehicle brake system
04/03/2014WO2013072206A3 Internal gear pump
04/03/2014DE102013110350A1 Elektrische Maschine mit einer Pumpenflügelwelle Electrical machine with a pump impeller shaft
04/02/2014EP2713052A2 Geared machine with a groove for holding an entry ridge
04/02/2014EP2712409A1 Universal joint with cooling system
04/02/2014CN203516092U Chocolate liquor pump
04/02/2014CN203516090U Pump core structure of power steering pump
04/02/2014CN203516089U Vane pump suitable for high-low-speed operation and low-speed starting
04/02/2014CN203516088U Gear oil pump
04/02/2014CN203516087U Novel shaft end sealing structure of carbon black feeding pump
04/02/2014CN203516086U High-pressure gear pump with embedded screw nut
04/02/2014CN203516085U Single screw pump
04/02/2014CN203515678U Vane type energy conversion device
04/02/2014CN103703284A Oil pressure circuit for transmissions
04/02/2014CN103703252A A stator of a gerotor device and a method for manufacturing roller pockets in a stator of a gerotor device
04/02/2014CN103702873A Brake system for a vehicle and method for operating a brake system of a vehicle
04/02/2014CN103696959A Gear pump device
04/02/2014CN103695701A Crescent block assembly of gear-within-gear pump and preparation method thereof
04/02/2014CN102227560B Tooth profile for rotors of positive displacement external gear pumps
04/02/2014CN102203422B Fully submerged integrated electric oil pump
04/02/2014CN102177343B 电动泵单元 Electric pump unit
04/01/2014US8684715 Vane machine
04/01/2014US8684714 Internal orbital engine
04/01/2014US8684713 Rotor type pump
03/2014
03/27/2014WO2014044444A2 Pump arrangement comprising a vane pump
03/27/2014US20140086779 Gear machine having a low-pressure connection deviating from the circular shape
03/27/2014US20140086778 Internal gear pump, especially for a vehicle hydraulic brake system
03/27/2014US20140086776 Surface treating agent for wear-resistance surface, manufacturing method thereof and compressor using the same
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