Patents for F04C 2 - Rotary-piston machines or pumps (14,296)
08/2006
08/23/2006CN1271335C Puming installation
08/22/2006US7094044 Vane pump having a pressure compensating valve
08/22/2006US7094042 Dual-inlet gear pump with unequal flow capability
08/22/2006CA2258611C Fluid vane motor/pump
08/17/2006US20060182645 Scroll-type fluid machine
08/17/2006US20060182644 Progressing cavity stator including at least one cast longitudinal section
08/17/2006US20060182643 Progressing cavity stator having a plurality of cast longitudinal sections
08/17/2006DE102005023721B3 Swiveling piston engine e.g. for combustion engines, has housing with two pistons arranged, which move around an axis of rotation and define working chamber, where first piston and or second piston are connected to driver
08/17/2006DE102005006949A1 Independently driven gear pump for diesel engines has several teeth omitted to provide larger working volume and rolling rotor
08/17/2006DE102005006703A1 Vorrichtung und Verfahren zur Schmierölversorgung Apparatus and method for supplying lubricating oil
08/16/2006EP1691077A1 Gear pump and liquid jetting device
08/16/2006EP1691076A1 Application apparatus comprising a volumetric pump
08/16/2006EP1430199B1 An inverted motor for drilling
08/16/2006CN2806828Y Partition type two-way liquid purifying pump and filter thereof
08/16/2006CN2806827Y Double screw pump bush with inner sleeve
08/16/2006CN2806826Y Portable rotating vacuum water pump
08/16/2006CN1818386A Rotary blade pump
08/16/2006CN1818385A Lubricating gearing pump with high oil-absorbing performance
08/16/2006CN1818384A Ceramic oil-submersible pump of brushless DC motor
08/16/2006CN1270104C Resonator for rotary compressor
08/15/2006US7089818 Speed sensor flange assemblies
08/10/2006WO2006054158A8 Variable delivery vane oil pump
08/10/2006US20060177339 Horizontal type orbiting vane compressor
08/10/2006US20060177338 Horizontal type orbiting vane compressor
08/10/2006US20060177337 Oil supply structure for slider of orbiting vane compressor
08/10/2006US20060177333 Air-feeding device
08/10/2006US20060177332 Step-type capacity varying apparatus of scroll compressor
08/10/2006DE102004058525A1 Displacement pump has rotor and pressure release openings connecting work chamber to pressure chamber in end region of pressure-side supply opening
08/09/2006EP1687538A1 Oscillating slide machine
08/09/2006EP1687537A1 Unit for delivering fuel to an internal combustion engine
08/09/2006EP1687509A1 Method for delivering a multi-phase mixture and pump installation
08/09/2006CN2804435Y Gear pump
08/09/2006CN1816695A 泵 Pump
08/09/2006CN1816694A Internal gear pump and inner rotor of the pump
08/09/2006CN1816680A Rotary machine with major and satellite rotors
08/08/2006US7086845 Vane pump having an abradable coating on the rotor
08/08/2006US7086844 Multi-stage scroll fluid machine having a set a seal elements between compression sections
08/08/2006US7086372 Connection structure between a plastic gear and a support shaft, oil pump including the connection structure, and engine incorporating same
08/08/2006CA2387635C Multi-chamber positive displacement fluid device
08/03/2006WO2006080862A1 High impulse hydrodynamic motor
08/03/2006WO2006036615A3 Progressing cavity pump with dual material stator
08/03/2006US20060171835 Discharge muffler system for a rotary compressor
08/03/2006US20060171834 Internal gear pump and an inner rotor of the pump
08/03/2006US20060171832 Compress
08/03/2006US20060171831 Scroll machine
08/03/2006US20060171830 Scroll type hydraulic machine
08/03/2006DE102005004657A1 Inner gear wheel machine e.g. inner gear wheel pump, has sealing disk pressed on pressure field, gap between housing part and disk, and support ring arranged with bar that supports seal in form-fit manner and inwardly intervenes with seal
08/02/2006EP1686265A2 Oil gear pump
08/02/2006EP1685328A1 Double or multiple pump
08/02/2006CN1811184A Efficient electromechanical rotor pump
08/01/2006US7083402 Rotating fluid machine
08/01/2006US7083401 Asymmetric contouring of elastomer liner on lobes in a Moineau style power section stator
08/01/2006US7083394 Vane pump with undervane feed
07/2006
07/28/2006CA2517488A1 Scroll machine
07/27/2006US20060165545 Sintered metal rotor of a rotary piston pump
07/27/2006US20060165544 Apparatus having a housing and having at least one rotating component disposed in the housing
07/27/2006US20060165543 Screw compressor acoustic resonance reduction
07/27/2006DE102005036711A1 Gear pump for an internal combustion engine has gearwheels for liquids so as to mesh with each two adjacent gearwheels and form a pumping unit
07/27/2006DE102005003340A1 Hydraulic machine includes cardan shaft with gearing with teeth and grooves at one end with grooves extending axially into body and with transition section whose diameter decreases towards gearing
07/26/2006EP1683970A2 Progressive cavity pump with a covered connecting element
07/26/2006EP1280995B1 Roller vane pump
07/26/2006CN2799913Y Gear pump with arc teeth profile
07/26/2006CN2799912Y Frequency conversion magnetic metering pump
07/26/2006CN2799911Y Magnetic drive type glandless pump
07/26/2006CN2799910Y Universal combined gear lubricating oil pump
07/26/2006CN1266383C Oil pump rotor
07/26/2006CN1265892C Hot melt adhesive distributing and spreading unit having independent gear pump assembly
07/20/2006US20060159581 Rotary fluid pressure device and improved brake assembly for use therewith
07/20/2006US20060159580 Scroll compressor and method of machining scroll lap
07/20/2006US20060159579 Motor-compressor unit mounting arrangement for compressors
07/20/2006DE102006001288A1 Hydraulische Flügelzellenpumpe Hydraulic vane pump
07/20/2006DE102004062002A1 Flüssigkeitspumpe Liquid pump
07/20/2006DE102004051068B3 Eccentric screw pump for delivering high viscosity media, has housing to retain stator with pump rotor and rotor of motor and including flat portion in area of rotor of motor such that stator of motor is arranged at small distance to rotor
07/19/2006EP1680602A1 Pumping system employing a variable-displacement vane pump
07/19/2006CN2797684Y Thermal insulation type oil, water and gas mixed delivering screw pump
07/19/2006CN2797682Y Two ends oil intaking rotor type oil pump
07/19/2006CN1806123A Vane pump with integrated shaft, rotor and disc
07/19/2006CN1804399A Tooth number unequal and radius unequal screw tooth profile of big-flow high-pressure dual-screw pump
07/19/2006CN1803560A Bauxite tailings dense phase conveying apparatus and method
07/19/2006CN1265097C Screw pump rotor machining process
07/19/2006CN1265095C Pump device
07/18/2006US7077635 Pump comprising a water supply
07/18/2006US7077633 Electric compressor
07/18/2006US7077098 Vane-type piston, four-cycle multi-chamber rotary internal combustion engine
07/13/2006US20060153725 Scroll compressor
07/13/2006US20060153724 Multiple elastomer layer progressing cavity stators
07/13/2006US20060153706 Internal gear-wheel pump comprising reinforced channels
07/13/2006US20060153695 Oil well pump apparatus
07/13/2006DE102005000686A1 Rotary pump for low-viscosity fluid has channel wall forming a throttle to reduce back flow of lubricant
07/12/2006EP1679440A2 Balanced rotary vane machine and method of transfering fluids therewith
07/12/2006EP1677965A1 Gear pump
07/12/2006EP1549854B1 Integrated speed reducer and pump assembly
07/12/2006CN2795490Y Novel machine oil pum assembly
07/12/2006CN1802507A G-rotor pump
07/12/2006CN1263971C Lubrication pump for inter-axle differential
07/11/2006US7074025 Fluid delivery device
07/11/2006US7074018 Direct drive linear flow blood pump
07/11/2006US7073477 Gorski rotary engine
07/06/2006WO2006071787A2 Improved rotor position control fore rotary machines
07/06/2006WO2006069868A1 Liquid pump
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