| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 04/24/2002 | CN2487891Y Bevel gear pump |
| 04/24/2002 | CN1083536C Double-worm system |
| 04/23/2002 | US6375445 Roller vane pump having a partly curved vane slot |
| 04/23/2002 | US6375441 Back pressure groove structure of variable displacement vane pump |
| 04/18/2002 | WO2002031318A1 Rotary-piston machine |
| 04/18/2002 | WO2002010591A3 Pump |
| 04/18/2002 | US20020043238 Wobble engine |
| 04/17/2002 | CN2486749Y Self suction fuel pump |
| 04/16/2002 | US6371744 Dry screw vacuum pump having spheroidal graphite cast iron rotors |
| 04/16/2002 | CA2078142C Two speed gerotor motor with centrally located valve and commutator |
| 04/11/2002 | WO2001098660A3 Adjustable fit progressive cavity pump/motor apparatus and method |
| 04/11/2002 | US20020041816 Hydraulic motor having multiple speed ratio capability |
| 04/11/2002 | US20020041815 Internally profiled stator tube |
| 04/11/2002 | DE10048242A1 Gear wheel pump has a housing having a base which is slightly convex |
| 04/11/2002 | DE10047738A1 Innenzahnradpumpe Internal gear pump |
| 04/10/2002 | EP1195541A1 A gear and a fluid machine with a pair of gears |
| 04/10/2002 | EP1194752A1 Dosing device adapted for dispensing a concentrate from a holder in a metered manner |
| 04/10/2002 | CN1344197A Lminar polyolefin plastic material recycling installation |
| 04/10/2002 | CN1343847A Relief valve |
| 04/10/2002 | CN1082626C Dry screw fluid machine |
| 04/09/2002 | US6368090 Automotive vane pump for generating anti-centrifugal force |
| 04/09/2002 | US6368086 Universal pump bracket |
| 04/04/2002 | WO2002027188A2 Vane pump |
| 04/04/2002 | WO2002027187A2 Vane pump |
| 04/04/2002 | WO2002027186A1 Improved engine prelubrication pump assembly |
| 04/04/2002 | WO2001092673A3 Fluid displacement apparatus and method |
| 04/03/2002 | EP1193395A2 Internal gear pump |
| 04/03/2002 | EP1192357A1 Axial compensation in an inner geared pump for a closed circuit |
| 04/03/2002 | CN1342842A Gear pump with bidirectional compensator for axial sealing |
| 04/03/2002 | CN1342841A Internal rotor with simplified planar tooth profile for rotary pump with internally engaged gears |
| 04/03/2002 | CN1082145C Gearred pump |
| 04/03/2002 | CN1082144C Gear pump or motor |
| 04/02/2002 | US6365402 Growth differentiation factor-9 |
| 04/02/2002 | US6364630 Vane pump |
| 03/28/2002 | US20020037231 Spherical gear pump |
| 03/28/2002 | US20020037227 Oil pump apparatus |
| 03/28/2002 | US20020037222 Vane pump with underv ane feed |
| 03/28/2002 | DE10045893A1 Hydraulikpumpe Hydraulic pump |
| 03/28/2002 | DE10040965A1 Zahnpumpe mit Schrägverzahnung Gear pump with helical gear teeth |
| 03/27/2002 | EP0859908B1 Fuel injection pump for internal combustion engines |
| 03/27/2002 | CN2483585Y Plate spring type lubricating pump |
| 03/27/2002 | CN1342243A Positive-displacement piston mechanism of rotary piston structure |
| 03/27/2002 | CN1081753C Oil supplying apparatus for horizontal type rotary compressor |
| 03/27/2002 | CN1081750C Sliding vane pump with plastic housing |
| 03/27/2002 | CN1081749C Pump with twin cylindrical impellers |
| 03/26/2002 | US6361292 Linear flow blood pump |
| 03/26/2002 | US6361289 Medical gear pump for suctioning and rinsing |
| 03/26/2002 | US6361282 Dual pump unit |
| 03/21/2002 | WO2002023044A1 Hydraulic pump |
| 03/20/2002 | CN2482596Y Sliding sheet type dynamic reciprocating pump |
| 03/20/2002 | CN1340428A Hydraulic motor with capability of multi-rotating speed ratio |
| 03/19/2002 | US6358027 Adjustable fit progressive cavity pump/motor apparatus and method |
| 03/14/2002 | US20020030402 Rotary pump and braking device using same |
| 03/14/2002 | US20020029801 Relief valve |
| 03/14/2002 | DE10141863A1 Hydraulic displacement pump has inner and outer rotor with different number of teeth and different heat expansion coefficients |
| 03/14/2002 | DE10042335A1 Tubular jacket for stator of eccentric screw pump consists of two linked pivoted sections each shaped like longitudinally divided cylinder jacket |
| 03/12/2002 | US6354824 Ceramic hardfacing for progressing cavity pump rotors |
| 03/12/2002 | US6354729 Mixing apparatus |
| 03/08/2002 | CA2356718A1 Progressing cavity pump with constant liner thickness |
| 03/07/2002 | WO2002018792A2 Progressing cavity pump |
| 03/07/2002 | US20020028153 Automotive vane pump for generating anti-centrifugal force |
| 03/07/2002 | DE10040711A1 Flügelzellenpumpe Vane pump |
| 03/06/2002 | EP1184573A2 Hydraulic motor having multiple speed ratio capability |
| 03/06/2002 | CN1080387C Closed electric driven compressor |
| 03/06/2002 | CN1080385C Sealing electric compression engine |
| 03/05/2002 | US6352419 Internal gear pump having a shaft seal |
| 03/05/2002 | US6352085 Pressure relief valve |
| 02/28/2002 | WO2002016772A1 Internal geared wheel pump |
| 02/28/2002 | WO2002016771A1 Roller vane pump incorporating a bearing bush |
| 02/28/2002 | DE3348188C2 Hydraulic rotary pump or motor |
| 02/27/2002 | EP1182350A2 Roller vane pump incorporating a bearing bush |
| 02/27/2002 | EP1182349A2 Internal gear pump with helical gear teeth |
| 02/27/2002 | EP1181453A1 Motor-pump unit |
| 02/27/2002 | CN1337528A New profile bolt |
| 02/27/2002 | CN1079912C Turbine type compressor |
| 02/21/2002 | WO2002014693A1 Variable capacity pump for gas turbine engines |
| 02/21/2002 | WO2002014692A1 Vane-cell pump |
| 02/21/2002 | US20020021979 Pump body for a medical gear pump |
| 02/20/2002 | EP1180217A1 Toothed rotor set |
| 02/20/2002 | CN2477863Y Mini gear pump |
| 02/20/2002 | CN1336491A Puming installation |
| 02/19/2002 | US6347843 Pump equipment and method for assembling same |
| 02/14/2002 | DE10134474A1 Pump with flow regulation valve device and injector device has separate return line in induction region of rotation group inside pump |
| 02/14/2002 | DE10037468A1 Steuerscheibe insbesondere für eine Flügelzellpumpe Tax disc for a particular vane pump |
| 02/14/2002 | DE10037118A1 Verfahren zur Herstellung eines Quellzements und zugehörige Testvorrichtung A method for producing a cement source and associated test device |
| 02/14/2002 | DE10037080A1 Pump used in power steering systems for pumping fluids, especially a vane pump, comprises devices provided in the inlet region of the jet chamber and/or the suction channel |
| 02/14/2002 | DE10030957C1 Rotary piston pump, for fluids containing solids, has oval casing with meshing rotors that have concave contour and acute leading and trailing edges and has cutting filter in inlet or outlet |
| 02/12/2002 | US6345969 Increased capacity valving plates for a hydraulic motor |
| 02/12/2002 | US6345968 Hydraulic motor with brake assembly |
| 02/07/2002 | WO2002010592A1 Pump with flow regulation valve device and injector device |
| 02/07/2002 | WO2002010591A2 Pump |
| 02/07/2002 | WO2002010086A1 Method for production of an expanding cement and corresponding test device |
| 02/07/2002 | WO2000061947A9 Dual path hydraulic pump |
| 02/07/2002 | US20020015653 Micromotor and micropump |
| 02/07/2002 | US20020015651 Rotary piston engine |
| 02/07/2002 | US20020014496 Method and apparatus for accurately dispensing liquids and solids |
| 02/06/2002 | EP1178211A2 Flow control plate especially for a vane pump |
| 02/06/2002 | CN1334904A Twin delivery screws provided for installation in positive-displacement machines, especially pumps |
| 01/31/2002 | WO2002008608A1 Internal gear pump |
| 01/31/2002 | US20020012598 Gerotor pump having an eccentric ring housing with an integral pressure chamber |