| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 02/19/2003 | EP1284214A2 Hydraulic transmission pump assembly having a differential actuation and method of its operation |
| 02/19/2003 | EP1283971A1 Regulated pump |
| 02/19/2003 | CN1101896C 油泵 Pump |
| 02/18/2003 | US6520757 Housing for accommodating a micropump |
| 02/18/2003 | CA2270782C Cascaded progressing cavity pump system |
| 02/13/2003 | US20030032516 Lubrication pump for inter-axle differential |
| 02/13/2003 | US20030031578 Rotary pump with higher discharge pressure and brake apparatus having same |
| 02/13/2003 | DE10135709C1 Universal lubricated sliding bearing for cogwheel pump has lubrication slot supplied with residual material in dead space of cog mechanism |
| 02/12/2003 | EP1283331A1 Lubricant pump for combustion engine |
| 02/12/2003 | EP1282778A1 Mechanically driven roller vane pump |
| 02/12/2003 | EP1282777A1 Rotating piston pump |
| 02/12/2003 | EP1161630B1 Comminuting pump |
| 02/12/2003 | CN2535579Y Middle high-pressure gear oil-pump |
| 02/12/2003 | CN2535578Y Cycloid type autombile fuel-oil pump core |
| 02/11/2003 | US6518684 Device having a magnetic clutch and use thereof for a gear pump |
| 02/06/2003 | US20030026722 Trochoid gear type fuel pump |
| 02/06/2003 | US20030026711 Internal gear wheel pump |
| 02/05/2003 | CN2534393Y Powder metallurgy gear pump |
| 02/05/2003 | CN1100924C Multi-dot foundation filling construction method and apparatus |
| 01/30/2003 | WO2003008807A1 Method for making a moineau pump stator and resulting stator |
| 01/30/2003 | US20030021707 Diaphragm pump |
| 01/29/2003 | EP1279834A2 Vane pump |
| 01/23/2003 | WO2003006830A1 Hydraulic motor system |
| 01/23/2003 | US20030015915 Brake unit |
| 01/23/2003 | DE10144197C1 Rotor for eccentric screw pump has rotor body made from cold shaped tube with drive slot worked in directly at one end and other end closed by cover |
| 01/22/2003 | EP1277960A2 Variable-delivery pump |
| 01/22/2003 | EP1276992A1 Gear-wheel pump, in particular for a high-pressure fuel pump |
| 01/22/2003 | CN2532277Y Edge size reduced mixing lubricated integral float bush for hydraulic gear pump |
| 01/22/2003 | CN2532274Y Simple support three-unit rotor pump |
| 01/16/2003 | US20030012674 Oil free screw compressor |
| 01/16/2003 | US20030012671 Method and apparatus for inspecting vanes in a rotary pump |
| 01/16/2003 | US20030012657 Devices employing colloidal-sized particles |
| 01/16/2003 | DE20113797U1 Filling unit for dosing containers with liquid has drive with a supporting housing and a resting element which lies underground and extensor pump with unit with filling valve |
| 01/15/2003 | EP1218640B1 High pressure cleaning device |
| 01/15/2003 | CN1098726C Mixing apparatus |
| 01/14/2003 | CA2126971C Water turbines or pumps |
| 01/09/2003 | US20030007876 Variable displacement pump |
| 01/09/2003 | US20030007875 Variable displacement pump |
| 01/09/2003 | US20030005906 Hydraulic motor system |
| 01/09/2003 | DE20215849U1 Helical pump has stator and rotor discharging via back-flow prevention valve |
| 01/08/2003 | EP1181453B1 Motor-pump unit |
| 01/08/2003 | EP1102935B1 A motor driven pump |
| 01/08/2003 | CN2530068Y Speed, pressure compensation balancing vane pump |
| 01/08/2003 | CN2530067Y Geared oil pump |
| 01/08/2003 | CN2530066Y Internal immersion gearing type electric fuel pump |
| 01/08/2003 | CN2530065Y High-pressure end flow-through electric fuel pump |
| 01/07/2003 | US6503068 Variable capacity type pump |
| 01/07/2003 | US6503064 Bi-directional low maintenance vane pump |
| 01/07/2003 | CA2096856C Rotary pump |
| 01/03/2003 | WO2003000603A2 Device for thickening or dewatering sludge, watery sediments or the like, especially surplus sludge in sewage treatment plants |
| 01/03/2003 | WO2002097272A8 Rotary pump |
| 01/02/2003 | US20030003007 Hydraulic motor |
| 01/02/2003 | US20030003000 Polyurethane stator for a progressive cavity pump |
| 01/02/2003 | US20030000964 Dispensing apparatus including a pump package system |
| 01/02/2003 | EP1270946A2 Device, like an extrusion machine, comprising a direct driven gear pump |
| 01/02/2003 | EP1268984A2 High efficiency turbine |
| 01/01/2003 | CN2528968Y Rotary piston compressor |
| 01/01/2003 | CN2528967Y Sliding vane pump with push rod |
| 01/01/2003 | CN2528966Y Sliding vane pump with bush |
| 01/01/2003 | CN2528965Y 滑片泵 Vane pumps |
| 01/01/2003 | CN2528964Y External driving double-rotation helicoidal pump |
| 01/01/2003 | CN1388320A Closed electric compressor |
| 12/31/2002 | US6499976 Downhole roller vane motor |
| 12/31/2002 | US6499966 Motor driven pump |
| 12/31/2002 | US6499964 Integrated vane pump and motor |
| 12/31/2002 | CA2273739C Rotary compressor with continuous vane slot and a method to set slot width |
| 12/27/2002 | WO2002059482B1 An integral unit of a hydraulic brake/gerotor hydraulic motor a nd a control valve block |
| 12/27/2002 | WO2001081730A9 Improved stator especially adapted for use in a helicoidal pump/motor and method of making same |
| 12/25/2002 | CN2527745Y Rotary reciprocating pump |
| 12/25/2002 | CN1387495A Compact pumping unit |
| 12/24/2002 | US6497565 Pump apparatus having drive force input portion aligned with pump shaft bearing member |
| 12/24/2002 | US6497558 Hydraulic pressure transformer |
| 12/24/2002 | US6497557 Sliding vane pump |
| 12/19/2002 | WO2002084122A3 Rotary pump |
| 12/19/2002 | US20020192099 Tooth set for a hydraulic machine |
| 12/19/2002 | US20020192098 Tooth set for a hydraulic machine |
| 12/19/2002 | US20020192095 Hydraulic machine |
| 12/19/2002 | US20020192093 Eccentric single-rotor screw pump |
| 12/19/2002 | US20020192080 Dual discharge hydraulic pump and system therefor |
| 12/18/2002 | EP1267078A2 Fluid transfer machine with drive shaft lubrication and cooling |
| 12/18/2002 | EP1267077A1 Gear pump with three shafts |
| 12/18/2002 | EP1267076A2 Bearing arrangement |
| 12/18/2002 | CN2526542Y Inductive machine oil pump |
| 12/18/2002 | CN1386171A 内齿轮泵 Internal gear pump |
| 12/18/2002 | CN1385639A Hydraulic controller for speed variator |
| 12/18/2002 | CN1096576C Steering control unit |
| 12/18/2002 | CN1096570C Coaxial multi-slip-sheet wave-ring rotor machine |
| 12/12/2002 | WO2002081922A3 Screw conveyor for the transport of flowable substances and/or lumps of material |
| 12/12/2002 | WO2002070897A3 A vane pump |
| 12/12/2002 | WO2002057631A3 Miniature precision bearings and method for assembling the same |
| 12/11/2002 | EP1015103B1 A mixing apparatus |
| 12/11/2002 | CN2525281Y Two section type thin shaft sleeve hydraulic gear pump |
| 12/11/2002 | CN2525280Y Flexible inner engaged gear pump |
| 12/11/2002 | CN2525279Y New automobile direction vane pump |
| 12/11/2002 | CN1095943C 旋转压缩机 Rotary compressor |
| 12/11/2002 | CN1095942C Helical impeller compressor |
| 12/10/2002 | US6491501 Progressing cavity pump system for transporting high-solids, high-viscosity, dewatered materials |
| 12/05/2002 | WO2002097275A1 Liquid seal pump of the helical screw type |
| 12/05/2002 | WO2002097274A2 Vane pump rotor |
| 12/05/2002 | WO2002097273A2 Pump having a temperature-dependent delivery volume |