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)
03/2014
03/27/2014US20140086763 High-Performance Oil Pump
03/27/2014US20140083086 Gerotor pump, a gerotor motor and a gerotor transmission system
03/27/2014DE102012217484A1 Innenzahnradpumpe, insbesondere für eine hydraulische Fahrzeugbremsanlage Internal gear pump, in particular for a hydraulic vehicle brake system
03/27/2014DE102012217400A1 Zahnradmaschine mit einer Nut zur Aufnahme eines Einlaufgrates Gear machine with a groove for receiving a Einlaufgrates
03/27/2014DE102012217225A1 Innenzahnradpumpe für eine hydraulische Fahrzeugbremsanlage Internal gear pump for a hydraulic vehicle brake system
03/27/2014DE102012217115A1 Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss Gear machine with differing from the circular shape low-pressure port
03/27/2014DE102012217071A1 Pumpenanordnung Pump assembly
03/27/2014DE102012217050A1 Pump assembly for supplying lubricating medium, particularly oil, has vane pump with rotor, eccentric ring surrounded to rotor and received wings sliding in radial running slots of rotor
03/26/2014EP2711552A2 Geared machine with low pressure connection deviating from the circular form
03/26/2014EP2711551A2 Pump, in particular displacement pump
03/26/2014EP2710267A1 Pump
03/26/2014EP2710266A1 Pump, pump system and method for pumping a medium
03/26/2014CN203499999U Filling vane pump for emulsion explosive charging machine
03/26/2014CN203499998U Filling vane pump for emulsion explosive charging machine
03/26/2014CN203499997U Novel bearingless gear pump
03/26/2014CN203499996U Finely-changed positive displacement pump
03/26/2014CN103688056A Gear pump and method for operating a gear pump
03/26/2014CN103687763A Brake system for a vehicle and method for operating a brake system of a vehicle
03/26/2014CN103671101A Hydraulic mechanical control mechanism
03/26/2014CN103671099A Sliding-vane-type oil delivery pump
03/26/2014CN103671098A Multiple-blade compressor
03/26/2014CN103671097A Vane pump
03/26/2014CN103671096A Vane type hydraulic pump
03/26/2014CN103671095A Multiple-blade hydraulic pump
03/26/2014CN103671094A Multiple-blade type gas compressor
03/26/2014CN103671093A Displacement-variable impeller pump
03/26/2014CN103671092A Vane pump with variable capacity
03/26/2014CN103671091A External gear pump for strengthening dynamic-pressure lubrication effect of gear end surface
03/26/2014CN103671090A Cycloidal-profile three-blade-rotor carbon black charging pump
03/26/2014CN103671089A Novel power end of three-cylinder tailing filling pulp pump
03/26/2014CN103671088A Cam rotor pump for conveying high-viscosity medium
03/26/2014CN103671087A Pumps with revolving piston structure, related products and part of embodiments
03/25/2014US8678795 Stator of a gerotor device and a method for manufacturing roller pockets in a stator of a gerotor device
03/25/2014US8678784 Drive device
03/25/2014CA2585300C Combination helical rotor pump
03/20/2014WO2014000725A3 Device for producing polymer pellets, extruded profiles or mouldings and melt pump therefor
03/20/2014WO2013093441A3 Mixing pump
03/20/2014US20140079581 Rotor for pump
03/20/2014US20140076155 Rotary three dimensional variable volume machine
03/20/2014DE202014100737U1 Motorölpumpe Engine oil pump
03/19/2014EP2708748A1 Switching pump with filling and/or emptying on both sides
03/19/2014EP2707629A2 Apparatus for sealing off a pump space of a rotary piston pump, and rotary piston pump having same
03/19/2014CN203488365U Gear oil pump with device capable of bearing radial force
03/19/2014CN103649584A Rotors formed using involute curves
03/19/2014CN103644115A Biarc screw pump
03/19/2014CN103644114A Oil pump with variable capacity
03/19/2014CN101965457B Cartridge-type single-screw pump and dye-meter equipped with such pump
03/18/2014US8672659 Vane air motor with prevention of leaking radial bearing grease
03/18/2014US8672658 Vane pump with improved rotor and vane extension ring
03/18/2014US8672657 Double gear pump with improved bearings
03/18/2014US8672656 Progressing cavity pump/motor
03/18/2014US8672655 Scroll compressor having a pass hole for preventing over-compression under a low load condition
03/18/2014US8672654 Shaft mounted counterweight, method and scroll compressor incorporating same
03/13/2014WO2014038302A1 Variable-capacity oil pump and oil supply system using same
03/13/2014DE102012216256A1 External gear machine e.g. pump, has channels guided from high pressure terminal to compensation pressure fields that are provided for force loading of bearing sleeves against force effect of pressure or force effect of portion of pressure
03/13/2014DE102012216254A1 External gear machine e.g. external gear pump has slot-like recessed portions that are extended between bearing bore and bearing bushes, so that power flow direction of bearing forces are acted on low pressure side of bearing bush
03/13/2014DE102012216221A1 Umschaltpumpe mit beidseitiger Befüllung und/oder Entleerung Umschaltpumpe with double-sided filling and / or emptying
03/13/2014DE102011108767B4 Hocheffiziente Drehschieberkonstantpumpe High efficiency rotary vane pump constant
03/12/2014CN203476697U Improved gear pump
03/12/2014CN203476398U Fluid machine with turning wheel whirling mechanism
03/12/2014CN103635690A Internal gear pump
03/12/2014CN103629109A Side plate axial clearance compensation gear oil pump
03/12/2014CN103628842A Oil pumping system of direct drive type permanent-magnet synchronous motor
03/12/2014CN102338086B Star-rotary-type compressor or pump
03/11/2014US8667950 Oil-less rotary engine
03/06/2014WO2014034717A1 Gear pump
03/06/2014WO2014032120A1 Gear assembly
03/06/2014US20140065002 Positive Displacement Pump With Improved Sealing Arrangement and Related Method of Making
03/06/2014US20140064997 Asymmetric lobes for motors and pumps
03/06/2014DE202013105512U1 Vorrichtung zum Fördern einer fließfähigen Fördermasse, insbesondere einer Baustoffmischung wie Mörtel Apparatus for conveying a fluid conveying mass, especially a mixture of building materials such as mortar
03/05/2014CN203463279U Screw pump assembly
03/05/2014CN203463084U Direct-drive permanent-magnet synchronous motor oil pumping system
03/05/2014CN103620279A Apparatus for sealing off a pump space of a rotary piston pump, and rotary piston pump having same
03/05/2014CN103620221A Electric oil pump
03/05/2014CN103615391A Single-screw pump combined bushing pair
03/05/2014CN103615389A Eccentric rotor oil-gas mixed transportation pump
03/04/2014US8662870 Integrated pump for compressible fluids
02/2014
02/28/2014CA2788310A1 Device for reducing rod string backspin in progressive cavity pump
02/27/2014WO2014031436A1 Progressive cavity pump
02/27/2014US20140056746 Elliptical gear pump fluid driving apparatus
02/27/2014US20140056736 Scroll compression device
02/27/2014DE102012213735A1 Pumpe, insbesondere Verdrängerpumpe Pump, particularly positive displacement pump
02/26/2014EP2699821A1 Rotors formed using involute curves
02/26/2014CN203453055U Gear pump
02/26/2014CN203453053U Gear pump
02/26/2014CN203453052U Efficient large-flow brushless diesel injection pump
02/26/2014CN203453051U Oil pump rotor
02/26/2014CN203453050U Automatic transmission oil pump for vehicle
02/26/2014CN103603802A External gear pump with offset gear pair
02/26/2014CN103603801A Box gear pump
02/26/2014CN103603800A Numerical control mixed transportation pump with simplified function
02/26/2014CN103603799A Fuel feeding pump for heavy engineering machinery
02/26/2014CN101978167B 油泵 Pump
02/20/2014WO2014026440A1 Single-head varying-pitch screw rotor with equal tooth top width
02/20/2014WO2011066964A3 Waste heat-fed heat recovery system
02/20/2014DE102012213847A1 Vane cell pump e.g. dual hub vane cell pump, for use as transmission oil pump for machine gear box in motor car, has form-fitting unit producing constrained course of wings and arranged on wings and at housing that receives rotor and ring
02/19/2014EP2698539A2 Electrically driven dual pump
02/19/2014CN203441748U High-gas-content-ratio multiphase-flow mixed transportation double-screw pump
02/19/2014CN203441745U Gear pump adopting double parallel structure
02/19/2014CN203441744U Oval gear pump adopting double parallel structure
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