| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 06/25/2014 | CN103890304A 带有非对称波瓣的井下马达和泵 Downhole motors and pumps with asymmetrical lobes |
| 06/25/2014 | CN103883520A 偏心轴与电机直联的转子式潜水泵 Direct eccentric shaft and the motor rotor submersible pump |
| 06/25/2014 | CN103883519A 叶片泵 Vane pump |
| 06/25/2014 | CN103883518A 带压力补偿腔的螺杆泵定子及螺杆泵 Screw stator and screw with pressure compensation chamber |
| 06/25/2014 | CN103883517A 定排量内啮合齿轮泵结构 Gear pump structure within a given displacement |
| 06/25/2014 | CN103883516A 定排量内啮合齿轮泵 Fixed displacement gear pump |
| 06/25/2014 | CN103883515A 内啮合齿轮泵 Internal gear pump |
| 06/25/2014 | CN103883514A 具有第一和第二欧丹联结件的涡旋式压缩机 Autun coupling having first and second scroll compressor member |
| 06/25/2014 | CN103883290A 海上油气田多相流混合输送系统 Offshore oil and gas fields of multiphase flow mixed delivery system |
| 06/25/2014 | CN102671402B 内置式负压工况料液输送泵 Built-in vacuum pump of working conditions |
| 06/24/2014 | US8757993 Gear pump with fluid communication portion |
| 06/24/2014 | US8757992 Air compression device |
| 06/19/2014 | WO2014093474A1 Compact integrated-drive pumps |
| 06/19/2014 | WO2014089629A1 A rotary fluid machine and associated method of operation |
| 06/19/2014 | US20140170010 Vane rotary compressor |
| 06/18/2014 | DE112010001701B4 Flügelzellenpumpe mit verbessertem Rotor und Drehschiebererweiterungsring Vane pump with improved rotor and vane extension ring |
| 06/18/2014 | DE102012112465A1 Pumpe Pump |
| 06/18/2014 | CN203655629U 一种带过滤装置的齿轮油泵 Gear pump with a filter device |
| 06/18/2014 | CN203655624U 一种变排量叶片泵 A variable displacement vane pump |
| 06/18/2014 | CN203655623U 一种轮船及大型机组用加油泵 One kind of ships and large units with pumps |
| 06/18/2014 | CN203655622U 一种新型微型水泵 A new miniature pumps |
| 06/18/2014 | CN203655621U 一种泵送固体颗粒的螺杆泵 One kind of solid particles pumping screw |
| 06/18/2014 | CN203655620U 大流量双吸式三螺杆泵 Large flow double suction three screw |
| 06/18/2014 | CN203655619U 转子泵 Rotor pump |
| 06/18/2014 | CN203655618U 高性能高压三螺杆泵 High-performance high-pressure three screw |
| 06/18/2014 | CN203655617U 一种泵送固体颗粒的单轴承螺杆泵 One kind of solid particles pumped single bearing screw |
| 06/18/2014 | CN203655616U 一种固体定量泵的转子 A solid metering pump rotor |
| 06/18/2014 | CN103867434A Planetary helical gear pump |
| 06/17/2014 | US8753100 Multiple rotor fluid transfer engine |
| 06/17/2014 | US8753099 Sealing system for gerotor apparatus |
| 06/17/2014 | CA2587050C Swivelling device for a downhole rod pump |
| 06/12/2014 | WO2014087052A1 Method and apparatus for transporting viscous material |
| 06/12/2014 | US20140161655 Pump |
| 06/12/2014 | US20140161645 Gas Pump With A Sealing Oil Groove |
| 06/12/2014 | US20140158426 Downhole Motors Having Adjustable Power Units |
| 06/12/2014 | DE102012112618B3 Mehrfachpumpe Multiple pump |
| 06/12/2014 | DE102012112069A1 Pumpe Pump |
| 06/11/2014 | EP2739855A2 Fluid energy transfer device |
| 06/11/2014 | EP2739854A1 Piston with replaceable and/or adjustable surfaces |
| 06/11/2014 | CN203641000U 一种液体输送装置 A liquid delivery device |
| 06/11/2014 | CN203640997U 一种中高压径向球头柱塞泵 One kind of high-pressure piston radial ball |
| 06/11/2014 | CN103857912A Pre-compression dual spring pump control |
| 06/11/2014 | CN103857867A Downhole motors and pumps with improved stators and methods of making and using same |
| 06/11/2014 | CN103850932A Pulseless rotor pump |
| 06/11/2014 | CN103850931A Pulseless rotor pump |
| 06/11/2014 | CN103850930A Internally-geared machine |
| 06/11/2014 | CN103850929A Internal gear pump |
| 06/11/2014 | CN103850928A Internal gear pump |
| 06/11/2014 | CN103847716A Rotating pump and brake system using same |
| 06/10/2014 | US8747091 Water injection type screw compressor |
| 06/10/2014 | US8747088 Open drive scroll compressor with lubrication system |
| 06/10/2014 | US8747087 Scroll pump having pockets formed in an axial end face of a scroll wall |
| 06/10/2014 | US8747086 Scroll compressor |
| 06/10/2014 | US8747085 Sliding vane pump with improved rotor profile |
| 06/05/2014 | WO2014083063A1 Variable displacement lubricant vane pump |
| 06/05/2014 | WO2014048612A3 Internal gear pump for a hydraulic vehicle brake system |
| 06/05/2014 | WO2014044444A3 Pump arrangement comprising a vane pump with an eccentric ring |
| 06/05/2014 | US20140154125 Gear ring pump |
| 06/05/2014 | US20140152084 Rotating pump and brake system using same |
| 06/05/2014 | DE112012003863T5 Gerotorpumpenanordnung und Motorfluidzufuhrsystem mit einer Gerotorpumpenanordnung Gerotorpumpenanordnung and engine fluid supply system with a Gerotorpumpenanordnung |
| 06/05/2014 | DE102012221953A1 Internally-geared machine, particularly internal gear pump, has high-pressure region that is connected with low pressure region via compensation channel by using hydraulic compensating current flows, from which cross-flow is branched off |
| 06/05/2014 | DE102012221947A1 External gear machine e.g. pump has bearing bushes that are made to correspond with receiving recesses of the housing, and gears that are formed at junctions of supplement circles on front sides of radially surrounding chamfer |
| 06/05/2014 | DE102012111637A1 Pumpeneinheit, insbesondere für Kraftfahrzeuge Pump unit, particularly for motor vehicles |
| 06/05/2014 | DE102009057482B4 Tragring Support ring |
| 06/04/2014 | EP2738427A1 Oil pressure circuit for transmissions |
| 06/04/2014 | EP2738389A1 Internal gear pump |
| 06/04/2014 | EP2738388A1 Internal gear pump |
| 06/04/2014 | EP2737212A1 A stator of a gerotor device and a method for manufacturing roller pockets in a stator of a gerotor device |
| 06/04/2014 | EP2736780A2 Brake system for a vehicle and method for operating a brake system of a vehicle |
| 06/04/2014 | EP2736779A2 Brake system for a vehicle and method for operating a brake system of a vehicle |
| 06/04/2014 | CN203627226U 变量泵转子 Variable pump rotor |
| 06/04/2014 | CN203627222U 用于双联变量叶片泵 For double variable vane pump |
| 06/04/2014 | CN203627221U 微脉冲碳纤维计量泵 Carbon fiber micro-pulse metering pumps |
| 06/04/2014 | CN203627220U 齿轮泵 Gear pumps |
| 06/04/2014 | CN203627219U 填隙组件及内啮合齿轮泵 Interstitial components and internal gear pump |
| 06/04/2014 | CN203627218U 一种内啮合齿轮泵 An internal gear pump |
| 06/04/2014 | CN203627217U 变径多级内转子泵 Within a multi-stage adjustable rotor pump |
| 06/04/2014 | CN203627216U 齿轮机械 GEAR |
| 06/04/2014 | CN103842656A Vane pump |
| 06/04/2014 | CN103842655A Fluid energy transfer device |
| 06/04/2014 | CN103842654A Piston with replaceable and/or adjustable surfaces |
| 06/04/2014 | CN103842639A Pump assembly for a high-pressure injection system |
| 06/04/2014 | CN103842619A Displacement pump |
| 06/04/2014 | CN103835942A Screw improvement structure of two-screw pump |
| 06/04/2014 | CN103835940A Variable displacement oil pump |
| 06/04/2014 | CN103835939A Novel gear pump |
| 06/04/2014 | CN102027238B Drill motor assembly |
| 06/03/2014 | US8740595 Gear pump |
| 06/03/2014 | US8740592 Adjustable vane cell pump with a slide comprising recesses |
| 05/30/2014 | WO2014081823A1 Composite supercharger rotors and methods of construction thereof |
| 05/29/2014 | US20140147323 Variable displacement pump |
| 05/29/2014 | US20140147322 Variable displacement pump |
| 05/28/2014 | EP2735740A1 Variable displacement lubricant vane pump |
| 05/28/2014 | EP2734734A2 Double-helical gear rotary positive displacement pump |
| 05/28/2014 | EP2734733A2 Gear pump and method for operating a gear pump |
| 05/28/2014 | DE102013224057A1 Variable displacement oil pump for internal combustion engine in vehicle, has output channel outputting fluid in control hydraulic chamber along direction to vary variation of opening area of introduction channel against opposite direction |
| 05/28/2014 | DE102013223994A1 Verstellpumpe Variable |
| 05/28/2014 | DE10157672B4 Mehrhubige hydrostatische Verdrängermaschine mit schwenkbaren und hydrostatisch entlastbaren Eingriffskörpern Multistroke hydrostatic displacement with swivel and hydrostatic relievable engagement bodies |
| 05/28/2014 | CN203614395U 齿轮泵装置 Gear pump device |
| 05/28/2014 | CN203614394U 一种箱体齿轮泵 One kind of gear pump casing |