| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 01/31/2002 | US20020012597 Pump apparatus |
| 01/31/2002 | DE10128499A1 Pumpe mit variabler Verdrängung Variable displacement pump |
| 01/31/2002 | DE10035900A1 Innenzahnradpumpe Internal gear pump |
| 01/31/2002 | DE10034238A1 Hydrotransformator Hydro transformer |
| 01/31/2002 | DE10033950A1 Pumpe mit Magnetkupplung Pump with magnetic coupling |
| 01/31/2002 | DE10014278C2 Hydromotor oder Hydropumpe Hydraulic motor or hydraulic pump |
| 01/30/2002 | EP1176312A2 Driving coupler used in a motor-driven hydraulic pump |
| 01/30/2002 | EP1176311A2 Pump apparatus |
| 01/29/2002 | US6342072 Artificial heart capable of being wholly implanted |
| 01/24/2002 | WO2002006674A2 Gear pump including ceramic gears and seal |
| 01/24/2002 | WO2002006669A1 Hydraulic transformer |
| 01/24/2002 | DE10033405A1 Displacement pump has pump body in rotor bush with longitudinal grooves starting at peripheral surface for accommodating pistons with associated internal force storage devices |
| 01/23/2002 | CN1078311C Fluid pump with flexible toothed belt |
| 01/22/2002 | USRE37520 Gray cast iron system for scroll machines |
| 01/17/2002 | WO2002004812A1 Positive displacement pump |
| 01/17/2002 | US20020006346 Water based hydraulic fluid and hydraulic pressure device |
| 01/16/2002 | EP1172561A2 Pump with a magnetic coupling |
| 01/16/2002 | EP1171690A1 Vacuum pump oil distribution system with integral oil pump |
| 01/16/2002 | CN2471971Y 凸轮泵 Lobe Pumps |
| 01/15/2002 | US6338612 Method for limiting the pressure provided by a hydraulic pump |
| 01/15/2002 | CA2244593C Dual stage rotary screw pump tool and method of pump flushing |
| 01/10/2002 | US20020004013 Vane pump |
| 01/10/2002 | DE10031470A1 Zahnradpumpe Gear pump |
| 01/09/2002 | CN2470580Y Teeht-shape screw stem |
| 01/09/2002 | CN2470579Y Novel tooth-shape screw stem |
| 01/09/2002 | CN2470578Y Tooth-shape screw stem |
| 01/09/2002 | CN1330021A Device for packaging feeded material |
| 01/08/2002 | US6336796 Progressive-cavity pump with composite stator and manufacturing process |
| 01/08/2002 | US6336729 Emergency light device |
| 01/03/2002 | WO2002001072A1 Gear pump |
| 01/03/2002 | WO2001044615A3 Composite stator for drilling motors and method of constructing same |
| 01/03/2002 | DE10029540A1 Hydraulic drive assembly has hydraulic motor and output device set against holder from opposite sides with motor connected to holder through its connection with the output device |
| 01/02/2002 | EP1167768A2 Vane Pump |
| 01/02/2002 | EP1165979A1 Hybrid bearing |
| 01/02/2002 | CN2469211Y Rotary-piston pump with stainless steel lining |
| 01/02/2002 | CN1077240C Gear pump or motor |
| 01/02/2002 | CN1077219C Fuel injection pump for internal combustion engines |
| 01/02/2002 | CA2356086A1 Wear resistant pc pump assembly |
| 12/27/2001 | WO2001098660A2 Adjustable fit progressive cavity pump/motor apparatus and method |
| 12/27/2001 | US20010055537 Downhole roller vane motor and roller vane pump |
| 12/27/2001 | US20010055528 Control for progressive cavity pump |
| 12/27/2001 | CA2409040A1 Adjustable fit progressive cavity pump/motor apparatus and method |
| 12/26/2001 | CN1328490A Gear pump and replaceable reservoir for fluid sprayer |
| 12/25/2001 | CA2219062C Infinitely variable ring gear pump |
| 12/20/2001 | US20010052372 Apparatus for encrusting a filling material |
| 12/20/2001 | DE10119639A1 Pump without valve for industrial and measuring purposes formed as dry-running valve-less rotary piston membrane pump |
| 12/20/2001 | DE10029307A1 Insertion stator for eccentric screw pumps has a removable elastomer body with sections held by clamp holders and which can be exchanged when worn without dismantling the stator |
| 12/20/2001 | DE10027990A1 Vane or roller pump has intermediate hydraulic capacity which can be pressurized via connection to pressure connection |
| 12/19/2001 | EP1164293A2 Gear pump with a flushing system |
| 12/19/2001 | EP1164249A1 Spherical positive-displacement rotary machine |
| 12/19/2001 | EP1163849A1 Apparatus for encrusting a filling material |
| 12/19/2001 | EP1163450A1 Pump for generating pressure or negative pressure |
| 12/19/2001 | EP1163449A1 Variable displacement vane pump |
| 12/19/2001 | CN2466387Y Engine oil pump for inner gearing small cylinder diameter diesel engine |
| 12/13/2001 | WO2001094791A1 Pump |
| 12/13/2001 | WO2001094789A1 Pump |
| 12/13/2001 | WO2001094788A1 Pump |
| 12/13/2001 | WO2001094787A1 Pump |
| 12/13/2001 | DE10027813A1 Cellular pump housing cover over pump unit is fixed to housing at points spaced over straight line spanning pressure field with second fixers at other two cover corners for pressure symmetry. |
| 12/13/2001 | DE10027812A1 Cellular pump housing with cover and pressure plates has plate and cover in one piece giving interposed constant depth pocket equal to chamber ring thickness. |
| 12/13/2001 | DE10027811A1 Cellular pump with housing and pressure plates uses distance piece between pressure plate and chamber ring surfaces plus seal round between pressure-side plate and housing. |
| 12/13/2001 | DE10008732C1 Hydraulic machine provided includes rotary valve plate having counter-weighting plate divided into inner plate and outer plate spaced by radial gap |
| 12/12/2001 | EP1161630A1 Comminuting pump |
| 12/12/2001 | CN2464964Y Multi-function all gear displacement-changing device |
| 12/12/2001 | CN1326048A Varied speed ratio hydraulic motor with external circulation |
| 12/11/2001 | US6328543 Gear pump and replaceable reservoir for a fluid sprayer |
| 12/06/2001 | WO2001092731A1 Hydraulic motor |
| 12/06/2001 | WO2001092673A2 Fluid displacement apparatus and method |
| 12/06/2001 | US20010048879 Pump equipment with plural rotary pumps and method for assembling same |
| 12/06/2001 | DE10034998A1 Zahnradextruder Gear extruder |
| 12/04/2001 | US6325604 Plastic gear pump housing |
| 12/04/2001 | CA2273776C Hermetic compressor assembly having a suction chamber and twin axially disposed discharge chambers |
| 12/01/2001 | CA2310544A1 Fluid displacement apparatus and method |
| 12/01/2001 | CA2310477A1 Well production apparatus and method |
| 11/29/2001 | WO2001090578A1 A flow pump having the rotary vanes and valves |
| 11/29/2001 | US20010046448 Rotary machine |
| 11/29/2001 | US20010045233 Process and device for pressurizing flowable reaction components |
| 11/29/2001 | DE10124559A1 Rotary piston engine has eccentric shaft carrying gear wheel near one side plate that forms pressurized oil supply geared pump with gear wheel mounted in side plate, dosing oil pump drive |
| 11/29/2001 | DE10025723A1 Geregelte Pumpe Controlled pump |
| 11/28/2001 | EP1158165A2 Gyrotor hydraulic motor |
| 11/28/2001 | EP1157804A2 Gear-pump extruder |
| 11/28/2001 | EP1025360B1 Internal gear machine |
| 11/23/2001 | CA2309129A1 Driven equipment for fluid machinery |
| 11/22/2001 | WO2001088378A1 Mechanically driven roller vane pump |
| 11/22/2001 | WO2001088377A1 Rotating piston pump |
| 11/22/2001 | WO2001087779A1 Pumping arrangement for a household water purifier |
| 11/22/2001 | WO2001016489A3 Rotary displacement machine with at least two displacement gearwheels with external teeth |
| 11/22/2001 | DE10024669A1 Pumpe Pump |
| 11/22/2001 | DE10022631A1 Eccentric screw pump for medium or high viscosity fluids; has drive motor and pump mechanism connected by quick-fit connection and has eccentric screw supported in foot side of pump |
| 11/21/2001 | EP1156228A2 Pump |
| 11/21/2001 | EP1156220A2 Internal gear pump |
| 11/21/2001 | EP1155240A1 Pump body for a medical gear-pump |
| 11/21/2001 | CN2460751Y 叶片泵 Vane pump |
| 11/21/2001 | CN1323089A Closed electric compressor |
| 11/21/2001 | CN1323088A Closed electric compressor |
| 11/21/2001 | CN1322901A 行星转子泵 Planetary rotor pump |
| 11/20/2001 | US6318973 Fuel pump |
| 11/15/2001 | WO2001086149A2 Fluid motor |
| 11/15/2001 | US20010041144 Gearing with mating internal and spur gears |
| 11/15/2001 | US20010041143 Valve arrangement and pump for a gear system |