| Patents for F03C 2 - Rotary-piston engines (2,448) |
|---|
| 04/05/2011 | US7918658 Non symmetrical key coupling contact and scroll compressor having same |
| 03/29/2011 | US7914267 Multistage compressor for a CO2 cycle that includes a rotary compressing mechanism and a scroll compressing mechanism |
| 03/23/2011 | CN201771671U Rotor and hydraulic motor using same |
| 03/23/2011 | CN101463792B Low-speed high-torque hydraulic motor of non-circular gear epicyclic gear train |
| 03/22/2011 | US7909593 Power transfer device with torque limited pump |
| 03/22/2011 | US7909591 Eccentric screw pump equipped with erosion-resistant rotor |
| 03/22/2011 | CA2532756C Multiple elastomer layer progressing cavity stators |
| 03/15/2011 | US7905716 Scroll compressor |
| 03/15/2011 | US7905715 Scroll compressor having a fixed scroll part and an orbiting scroll part |
| 03/15/2011 | US7905714 Progressing cavity pump assembly and method of operation |
| 03/08/2011 | US7901194 Shaft coupling for scroll compressor |
| 03/03/2011 | WO2011022835A1 Fluid turbine |
| 03/02/2011 | CN201753006U Damping device for hydraulic unit |
| 03/01/2011 | US7896629 Scroll compressor with discharge valve |
| 03/01/2011 | US7896628 Downhole motor seal and method |
| 02/28/2011 | CA2677006A1 Hydraulic generator (liquid flow generator) |
| 02/22/2011 | US7891961 Mounting structure of discharge valve in scroll compressor |
| 02/17/2011 | DE202010013060U1 Wasserschneckenanlage Water snails system |
| 02/16/2011 | EP2283209A1 Rotary combustion engine and hydraulic motor |
| 02/15/2011 | US7887310 Compressor unloading valve |
| 02/10/2011 | DE202010015203U1 Radkolbenmaschine Radkolbenmaschine |
| 02/09/2011 | CN201739075U Built-in integrated valve type brake cycloid hydraulic motor |
| 02/09/2011 | CN201739074U Built-in type brake cycloid hydraulic motor |
| 02/09/2011 | CN201733675U Hydraulic curtain rolling machine for greenhouses |
| 02/09/2011 | CN101968029A Rotary fluid pressure device and improved integral brake assembly |
| 02/01/2011 | US7878778 Rotary compressor having main bearing integrally formed with cylinder or piston serving as fixed side |
| 02/01/2011 | US7878777 Scroll compressor having grooved thrust bearing |
| 02/01/2011 | US7878776 Thermally compensated scroll machine |
| 02/01/2011 | US7878775 Scroll compressor with housing shell location |
| 02/01/2011 | US7878774 Moineau stator including a skeletal reinforcement |
| 01/26/2011 | CN201723361U Liquid pressure transmission engine |
| 01/26/2011 | CN101956648A Liquid container chamber mutually changed hydraulic energy-creating continuous motion machine |
| 01/25/2011 | US7874820 Compressor unloading valve |
| 01/18/2011 | US7871253 Stator clamping device for eccentric screw pump |
| 01/12/2011 | CN201705544U Low-speed high-torque radial plunger type hydraulic motor |
| 01/12/2011 | CN201705543U Double-speed cycloid hydraulic driving motor |
| 01/11/2011 | US7866965 Inner gear being biased to pump cover due to meshing of inner and outer gears |
| 01/06/2011 | WO2011001100A2 Multi-stage scroll machine |
| 01/05/2011 | CN101936250A Volumetric fluid pressure and power converting module |
| 01/04/2011 | US7862315 Screw displacement pump |
| 01/04/2011 | US7862314 Screw compressor |
| 01/04/2011 | US7862311 Variable displacement vane pump |
| 12/28/2010 | US7857607 Rotary lobe pump |
| 12/23/2010 | WO2010147979A1 Rotary vane engines and methods |
| 12/23/2010 | WO2010145435A1 Vane pump/motor |
| 12/23/2010 | US20100322805 Method of controlling a gear pump as well as an application of the method |
| 12/21/2010 | US7854601 Lubricant-tight vane rotary vacuum pump |
| 12/15/2010 | CN201671534U Screw drilling tool |
| 12/15/2010 | CN101915204A Built-in integrated valve type braking cycloid hydraulic motor |
| 12/08/2010 | EP1709324B1 Scroll wrap tip with abradable selectively applied coating and load-bearing surface |
| 12/08/2010 | CN101418773B High performance spherical hydraulic motor |
| 12/08/2010 | CN101292087B Net-displacement control method of fluid motors and pumps |
| 12/07/2010 | US7845921 Supercharger with outlet bars for rotor tip seal support |
| 12/07/2010 | US7845920 Oil pump |
| 12/07/2010 | US7845918 Powder metal scrolls |
| 12/07/2010 | CA2153653C Growth differentiation factor-9 |
| 12/01/2010 | CN201661316U High temperature gear hydraulic motor |
| 12/01/2010 | CN101900109A Hydraulic machine |
| 12/01/2010 | CN101344067B Oil distribution disk and continuous slewing electro-hydraulic servo motor using the same |
| 11/30/2010 | US7841846 Vane pump with improved internal port placement |
| 11/23/2010 | US7837452 Scroll compressor including deflection compensation for non-orbiting scroll |
| 11/23/2010 | US7837451 Non-contact seal for positive displacement capture device |
| 11/18/2010 | US20100290940 Radial axis, spherical based rotary machines |
| 11/18/2010 | DE102007001021B4 Kreiskolbenmaschine A rotary engine |
| 11/16/2010 | US7832996 Hydrostatic rotary cylinder engine |
| 11/16/2010 | US7832995 Variable displacement vane pump and method of manufacturing the same |
| 11/09/2010 | US7828537 Rotary engine with inlet and outlet valves |
| 11/09/2010 | US7828535 Pressure sealed tapered screw pump/motor |
| 11/09/2010 | US7828534 Displacement machine including at least two adjacent working chambers |
| 11/09/2010 | US7828533 Positive displacement motor/progressive cavity pump |
| 11/09/2010 | CA2458466C Switched resonant power conversion electronics |
| 11/04/2010 | WO2010124541A1 High-speed large-torque hydraulic blade motor |
| 10/27/2010 | CN101871420A Two-degree of freedom spherical hydraulic motor with fixed rudder blade shaft |
| 10/27/2010 | CN101871419A Hydraulic machine |
| 10/26/2010 | US7819646 Rotary piston vacuum pump with washing installation |
| 10/20/2010 | CN101864893A Screw rod drilling tool |
| 10/19/2010 | CA2636319C Compact rotary compressor with carbon dioxide as working fluid |
| 10/19/2010 | CA2520760C Gerotor mechanism for a screw hydraulic machine |
| 10/14/2010 | WO2010061168A3 Valve-controlled downhole motor |
| 10/13/2010 | CN101858300A Innercurve multiple-action radial plunger type hydraulic motor |
| 10/13/2010 | CN101328858B Low friction high-pressure blade rotating motor based on self-compensation compound seal technique |
| 10/12/2010 | US7811071 Scroll compressor for carbon dioxide refrigerant |
| 10/06/2010 | CN201599134U 一种环保节能减排污水热能回收系统 An environmentally friendly energy saving wastewater heat recovery system |
| 10/06/2010 | CN101852094A Displacement sliding rotary engine |
| 10/05/2010 | US7806672 Rotary compressor with pressing mechanism and adjusting mechanism to vary a magnitude of a load in response to a pressure difference between the suction fluid and discharge fluid |
| 09/28/2010 | US7802974 Screw compressor having asymmetric seal around rotor axis |
| 09/22/2010 | CN101839209A In-built baking cycloid hydraulic motor |
| 09/21/2010 | US7799074 Rotary displacement pump with smaller radial dimensions |
| 09/21/2010 | US7798793 Compressor slide valve lubrication |
| 09/21/2010 | US7798792 Power transfer assembly with high efficiency pump |
| 09/21/2010 | US7798791 Capacity varying type rotary compressor and refrigeration system having the same |
| 09/21/2010 | CA2514823C Gear pump |
| 09/14/2010 | US7794218 Roots type pump and fuel cell system |
| 09/14/2010 | US7793636 Apparatus adapted to perform as compressor, motor, pump, and internal combustion engine |
| 09/07/2010 | US7789642 Gear pump and method of producing the same |
| 08/24/2010 | US7780428 Fluid-guiding and electric conducting system for suspended electric submersible progressing cavity pump (PCP) |
| 08/24/2010 | US7780427 Two-stage rotary compressor |
| 08/24/2010 | US7780426 Rotary compressor defining gaps of different sizes |
| 08/18/2010 | CN101198766B Balancing plate-shuttle ball |
| 08/17/2010 | US7775782 Variable capacity rotary compressor having vane controller |