| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 12/30/2004 | US20040265147 Flanged gear pump |
| 12/30/2004 | DE10325025A1 Zahnradpumpe und Halteglied hierfür Gear pump and holding member therefor |
| 12/29/2004 | WO2004113729A1 Vane pump with integrated shaft, rotor and disc |
| 12/29/2004 | WO2004113728A1 G-rotor pump |
| 12/29/2004 | WO2004113727A2 Progressive cavity pump/motor |
| 12/29/2004 | WO2004113664A1 Inner and outer motor with eccentric stabilizer |
| 12/29/2004 | WO2004090330A3 Screw pump |
| 12/29/2004 | CN1558985A System for the construction of pumps, compressor, and motor engines, formed by a rotary chamber and pistons which are driven in the same direction at varying velocities alternatively opposite to each |
| 12/29/2004 | CN1558115A Vehicle-mounted gear pump |
| 12/29/2004 | CN1182330C Oil delivering pump |
| 12/28/2004 | US6835056 Roller vane pump incorporating a bearing bush |
| 12/28/2004 | US6835054 Oil pump |
| 12/23/2004 | WO2004111459A1 Fluid pump and motor |
| 12/23/2004 | WO2004111455A1 Single-vane rotary pump or motor |
| 12/23/2004 | US20040258550 Pump |
| 12/23/2004 | US20040258549 Fluid delivery device |
| 12/23/2004 | US20040258548 Progressive cavity pump/motor |
| 12/23/2004 | US20040258541 Orbital fluid pump |
| 12/23/2004 | DE19520922B4 Drehkolbenpumpe Rotary pump |
| 12/23/2004 | DE10356807A1 Positive displacement gear pump for use in e.g. internal combustion (IC) engine, has pump case formed of material e.g. steel, whose coefficient of thermal expansion is lower than that of material e.g. zinc, for pair of gears |
| 12/23/2004 | CA2527859A1 Fluid pump and motor |
| 12/23/2004 | CA2527268A1 Single-vane rotary pump or motor |
| 12/22/2004 | EP1222396B1 Stator with rigid retaining ring |
| 12/22/2004 | CN2665409Y 齿轮式沥青泵 Asphalt gear pump |
| 12/22/2004 | CN2665408Y Down-hole oil extraction double screw pump |
| 12/22/2004 | CN1556899A Discharge porting design for screw compressor |
| 12/22/2004 | CN1556329A Method of eradicating axial leakage of gear wheel pump |
| 12/22/2004 | CN1181258C Positive-displacement type hydraulic component with almost zero side gap |
| 12/21/2004 | US6832903 Functionalties of axially movable spool valve |
| 12/16/2004 | WO2004109112A1 Four-in pump |
| 12/16/2004 | WO2004109111A1 Vane-cell pump provided with a deep-drawn metal-sheet pot |
| 12/16/2004 | WO2004109110A1 Gear pump |
| 12/16/2004 | US20040253135 Vane pump with integrated shaft, rotor and disc |
| 12/16/2004 | US20040253134 Vane pump with integrated shaft, rotor and disc |
| 12/16/2004 | US20040253119 Port configuration for fuel pump unit for facilitating pressure feedback |
| 12/16/2004 | DE10324093A1 Discharge flow controllable lubricating oil pump for pressure oil supply of an internal combustion engine, comprises accumulator which is in hydraulic connection with spring chamber of discharge flow controller |
| 12/16/2004 | DE10324092A1 Variable output lubricant pump for IC engine has axially adjustable meshing pump wheels displaced by hydraulic pressure and with a hydraulic pressure to supplement the return spring pressure |
| 12/16/2004 | DE102004023836A1 Ölpumpenanordnung Oil pump assembly |
| 12/15/2004 | EP1486675A1 Aeronautical generator |
| 12/15/2004 | EP1485621A1 System for controlling a hydraulic force pump |
| 12/15/2004 | EP1485620A1 Variable-delivery rotary vane pump |
| 12/15/2004 | EP1485576A1 Variable-delivery central-vane rotary pump, particularly for oil |
| 12/15/2004 | CN2663692Y Rolling sliding-vane pump |
| 12/09/2004 | WO2004106744A1 Gear pump and holding element therefor |
| 12/09/2004 | WO2004106742A1 Rotary piston pump with pressure relief |
| 12/09/2004 | US20040247475 Scroll fluid machine |
| 12/09/2004 | US20040247473 Method of controlling shifting of two-speed motor |
| 12/09/2004 | US20040247464 Fuel supply apparatus |
| 12/09/2004 | US20040247463 Variable-delivery vane pump |
| 12/09/2004 | DE19613833B4 Innenzahnradmaschine, insbesondere Innenzahnradpumpe Internal gear pump, especially internal gear pump |
| 12/08/2004 | EP1484505A1 Method of controlling shifting of two-speed motor |
| 12/08/2004 | EP1484504A1 Fuel supply apparatus |
| 12/08/2004 | EP1483505A1 Hydraulic system comprising a variable displacement pump |
| 12/08/2004 | CN1553056A Screw pump rotor machining process |
| 12/08/2004 | CN1179129C Toothed rotor set |
| 12/07/2004 | US6827565 Rotating piston pump |
| 12/07/2004 | US6827562 Method of controlling shifting of two-speed motor |
| 12/02/2004 | US20040241031 Gear pump or motor |
| 12/02/2004 | US20040241016 Pump assembly |
| 12/02/2004 | US20040238505 Welding method and tubular member and gear pump made using the welding method |
| 12/02/2004 | US20040238328 Screw conveyor for the transport of flowable substances and/or lumps of material |
| 12/01/2004 | EP1482175A2 Electric powered pump |
| 12/01/2004 | EP0787260B1 Multiple-chamber gear pump |
| 12/01/2004 | CN2660176Y Pump body of rotor oil pump |
| 12/01/2004 | CN2660173Y Large capacity dual-action slipper self-sucking pump |
| 12/01/2004 | CN2660172Y Rolling bearing slipper pump |
| 12/01/2004 | CN1551950A Screw conveyor for the transport of flowable substances and/or lumps of material |
| 12/01/2004 | CN1550676A 制冷剂泵 Refrigerant pump |
| 12/01/2004 | CN1550672A Oil pump structure |
| 12/01/2004 | CN1550432A Device for filler incrustation |
| 11/30/2004 | US6824486 Gear pump for automatic transmission |
| 11/30/2004 | US6824369 Rotary variable expansible chamber-kinetic hybrid pump |
| 11/30/2004 | US6824368 Pump for conveying molten masses of polymers and elastomers |
| 11/30/2004 | CA2262849C Improved sealing system for rotating component of a pump |
| 11/25/2004 | WO2004101836A2 Oil pump |
| 11/25/2004 | WO2004074699A3 Offset bearing for pump |
| 11/25/2004 | US20040234681 Pressure-controlling dispersion delivery system |
| 11/25/2004 | US20040234393 Oil pump structure |
| 11/25/2004 | DE202004014201U1 Liquid dispenser, comprises base with inlet and outlet, ribbed soft cylinder and motor driven extruder |
| 11/25/2004 | DE102004019326A1 Rollenzellenpumpe Roller vane pump |
| 11/24/2004 | EP1478854A2 Motor pump |
| 11/24/2004 | EP1320681B1 Vane pump |
| 11/24/2004 | CN1548703A Multi-arc cylinder body sliding sheet rotor positive displacement machinery |
| 11/24/2004 | CN1177140C Closed electric compressor |
| 11/24/2004 | CN1176831C Device for packaging feeded material |
| 11/23/2004 | US6821099 Rotary pump |
| 11/18/2004 | US20040228752 External gear pump with pressure fluid pre-loading |
| 11/18/2004 | US20040228745 Pumps |
| 11/18/2004 | US20040228744 Refrigerant pump |
| 11/18/2004 | DE10164813B4 Drehkolbenpumpe Rotary pump |
| 11/17/2004 | CN2656670Y Multifunctional hand-operated vane pump |
| 11/17/2004 | CN2656669Y Water body aeration special pusher-type fan |
| 11/17/2004 | CN2656668Y Two rotor screw pump |
| 11/17/2004 | CN2656626Y Under well screw pump oil pumping device |
| 11/17/2004 | CN1546865A Approximate sealed dual head screw |
| 11/17/2004 | CN1546864A Dentiform screw with short seal line |
| 11/17/2004 | CN1546861A Rotary piston type fluid element |
| 11/16/2004 | US6817847 Rotary pump having a hydraulic intermediate capacity with first and second connections |
| 11/16/2004 | US6817843 Ball check air vent for transmission pump |
| 11/11/2004 | WO2004097222A1 Reversible screw pump |