| Patents for F03C 2 - Rotary-piston engines (2,448) |
|---|
| 11/26/2003 | EP1365151A1 Gerotor motor with lubrication grooves |
| 11/12/2003 | EP1144867B1 Pump |
| 11/05/2003 | CN1126871C Compressor assembly with positive displacement pump capable of rotating oppositely |
| 10/30/2003 | US20030202896 Hydraulic motor with a separate spool valve |
| 10/23/2003 | WO2003029660A9 Velocity-regulating hydraulic valve device |
| 10/23/2003 | DE10200968C1 Hydraulikmotor Hydraulic motor |
| 10/08/2003 | EP0894195B1 Progressive cavity pumps using composite materials |
| 10/08/2003 | CN2578544Y Metal hollow spindle gear pneumatic motor |
| 10/08/2003 | CN2578543Y Hydraulic motor driver |
| 09/30/2003 | CA2275789C Positive displacement pump |
| 09/17/2003 | CN1442615A Clearance of ring shaped gear wheel machine |
| 09/03/2003 | EP1340912A1 Internal gear machine with teeth clearance |
| 08/13/2003 | EP1334265A1 Fluid power transfer device |
| 08/12/2003 | US6604921 Optimized liner thickness for positive displacement drilling motors |
| 08/06/2003 | EP1333151A2 Liner of optimized thickness for positive displacement drilling motors |
| 07/31/2003 | WO2002059482A8 An integral unit of a hydraulic brake/gerotor hydraulic motor a nd a control valve block |
| 07/31/2003 | US20030143094 Stator for down hole drilling motor |
| 07/24/2003 | US20030138338 Optimized liner thickness for positive displacement drilling motors |
| 07/17/2003 | WO2003058070A1 Hydraulic motor |
| 07/15/2003 | US6592346 Compressor discharge valve |
| 05/28/2003 | CN1420276A Slide valve type gear rotor motor |
| 05/28/2003 | CN1109823C Spool valve wheel motor |
| 05/14/2003 | EP1078148B1 Device for adjusting the phase position of a shaft |
| 05/07/2003 | CN1415860A Revolving positive displacement typed gydraulic driving gear and hydraulic driving pumping unit |
| 04/24/2003 | WO2003033912A1 Vane type rotary machine |
| 04/23/2003 | CN2546646Y Low-friction oscillating hydraulic motor |
| 04/17/2003 | US20030072664 Compressor discharge valve |
| 04/16/2003 | CN2545386Y Axial oil distribution cycloidal hydraulic motor |
| 04/15/2003 | US6547542 Series for compressed air motors with torque which can be theoretically output in a varied manner and a method for producing the individual compressed air motors of said series |
| 04/10/2003 | WO2003029660A1 Velocity-regulating hydraulic valve device |
| 04/09/2003 | CN1105224C Positive-desplacement piston mechanism of rotary piston structure |
| 04/08/2003 | US6544018 Hydraulic motor having multiple speed ratio capability |
| 04/03/2003 | US20030063990 Scroll fluid machine |
| 03/19/2003 | CN1404553A Leakage oil return apparatus for a hydraulic motor |
| 03/12/2003 | EP1053400A4 Hydraulic motor lubrication path |
| 01/29/2003 | CN2533285Y Constant speed variable displacement hydro-motor |
| 01/29/2003 | CN2533284Y Static pressure balanced rotary actuator |
| 01/22/2003 | CN1392340A Slide board type power switching device |
| 01/16/2003 | US20030010562 Leakage oil return apparatus for a hydraulic motor |
| 01/02/2003 | US20030003007 Hydraulic motor |
| 12/27/2002 | WO2002059482B1 An integral unit of a hydraulic brake/gerotor hydraulic motor a nd a control valve block |
| 12/24/2002 | US6497558 Hydraulic pressure transformer |
| 12/04/2002 | EP1261803A1 Leakage oil return apparatus for a hydraulic motor |
| 11/19/2002 | US6481990 Hydraulically balanced multi-vane hydraulic motor |
| 11/06/2002 | CN2519858Y Propeller type hydraulic motor |
| 10/22/2002 | US6468061 Rotary machine |
| 10/15/2002 | US6464478 Hydraulic vane motor and hydraulic system including a hydraulic vane motor |
| 10/08/2002 | US6461128 Progressive cavity helical device |
| 10/01/2002 | US6457946 Regulatable pump |
| 09/26/2002 | US20020136655 Hydraulically balanced multi-vane hydraulic motor |
| 09/25/2002 | EP1243794A2 Vane hydraulic motor |
| 09/24/2002 | CA2275816C Bearing lubrication system for a scroll compressor |
| 09/12/2002 | US20020127612 Cell proliferation polypeptide for use in the diagnosis and treatment of tumors |
| 09/12/2002 | US20020127126 Bi-rotational pump/hydraulic actuator |
| 09/03/2002 | CA2275813C Stepped annular intermediate pressure chamber for axial compliance in a scroll compressor |
| 09/03/2002 | CA2275788C Oldham coupling for a scroll compressor |
| 08/01/2002 | WO2002059482A1 An integral unit of a hydraulic brake/gerotor hydraulic motor a nd a control valve block |
| 07/02/2002 | US6413063 Pump |
| 06/25/2002 | CA2024847C Reduced sized hydraulic motor |
| 05/22/2002 | CN1085304C Progressive cavity pump using composite materials |
| 05/21/2002 | US6390052 Wobble engine |
| 05/16/2002 | US20020057976 Scroll fluid machine |
| 05/14/2002 | US6386165 Device for adjusting the phase position of a shaft |
| 04/25/2002 | WO2002033238A1 Fluid power transfer device |
| 04/25/2002 | WO2000009887A3 Pump |
| 04/25/2002 | EP1144867A3 Pump |
| 04/25/2002 | CA2426179A1 Fluid power transfer device |
| 04/24/2002 | EP1199473A2 Scroll fluid machine |
| 04/18/2002 | US20020043238 Wobble engine |
| 04/16/2002 | CA2078142C Two speed gerotor motor with centrally located valve and commutator |
| 04/11/2002 | US20020041816 Hydraulic motor having multiple speed ratio capability |
| 04/03/2002 | CN1082144C Gear pump or motor |
| 04/02/2002 | US6365402 Growth differentiation factor-9 |
| 03/27/2002 | CN1342243A Positive-displacement piston mechanism of rotary piston structure |
| 03/20/2002 | CN1340428A Hydraulic motor with capability of multi-rotating speed ratio |
| 03/06/2002 | EP1184573A2 Hydraulic motor having multiple speed ratio capability |
| 12/19/2001 | CN2466410Y Hydraulic swing motor |
| 12/12/2001 | CN1326048A Varied speed ratio hydraulic motor with external circulation |
| 11/29/2001 | US20010046448 Rotary machine |
| 11/28/2001 | EP1158165A2 Gyrotor hydraulic motor |
| 11/14/2001 | CN1321830A Stepping rotary piston fluid motor |
| 10/25/2001 | US20010033797 Regulatable pump |
| 10/17/2001 | EP1144868A1 Hydraulic machine comprising dual gerotors |
| 10/17/2001 | EP1144867A2 Pump |
| 09/26/2001 | CN1314547A 液压发动机 Hydraulic engine |
| 09/12/2001 | CN1071000C Fluid pressure apparatus |
| 09/07/2001 | WO2001065118A1 Hydraulic pressure transformer |
| 09/07/2001 | WO2001065113A1 Leakage oil return apparatus for a hydraulic motor |
| 08/29/2001 | EP0931221A4 A rotary machine |
| 08/28/2001 | US6280169 Rotary machine |
| 08/21/2001 | US6276911 Screw compressor |
| 07/17/2001 | CA2143719C Vane cell machine |
| 07/12/2001 | DE19962554A1 Adjustable rotating lubrication pump for an internal combustion engine has an eccentric hub operating inside the casing with fitted to a guide ring |
| 06/28/2001 | US20010005486 Progressive cavity helical device |
| 06/26/2001 | US6250900 Positive displacement hydraulic unit with near-zero side clearance |
| 06/19/2001 | US6248037 Hydrostatic motor unit |
| 06/05/2001 | US6241494 Non-elastomeric stator and downhole drilling motors incorporating same |
| 05/23/2001 | CN1296133A Positive-displacement type hydraulic component with almost zero side gap |
| 05/17/2001 | DE10047368A1 Positive displacement hydraulic unit, e.g. hydraulic pumps or motors, comprises housing, gerotors, and non-metallic abradable coating material layer |
| 05/15/2001 | US6230823 Downhole motor |