| Patents for F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids (2,516) |
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| 10/15/2008 | EP1543254B1 Powder-metallurgically produced piston body comprising support webs and method for the production thereof |
| 10/15/2008 | CN201133350Y Dry screw compressor main unit rotor spindle sealing structure |
| 10/15/2008 | CN100425841C Back pressure apparatus for orbiting vane compressors |
| 10/08/2008 | EP1978253A1 Electric compressor |
| 10/08/2008 | CN100424350C Compression unit of orbiting vane compressor |
| 10/02/2008 | WO2008116590A1 Sealing ring for shaft seals |
| 10/02/2008 | US20080240966 Hydraulic machine |
| 10/02/2008 | US20080240965 Rotor shaft sealing method and structure of oil-free rotary compressor |
| 10/02/2008 | US20080240964 Shaft seal device for oil-free rotary compressor |
| 10/02/2008 | US20080240963 Rotor shaft sealing structure for oil-free rotary compressor |
| 10/01/2008 | EP1975412A2 Shaft seal device for oil-free rotary compressor |
| 10/01/2008 | EP1975411A1 Rotor shaft sealing structure of oil-free rotary compressor |
| 10/01/2008 | EP1975410A1 Rotor shaft sealing method and structure of oil-free rotary compressor |
| 10/01/2008 | CN201125867Y Rotary vane type automobile air conditioner compressor |
| 10/01/2008 | CN101275799A Digital controller for scroll compressor condensing unit |
| 10/01/2008 | CN101275675A Shaft sealing device for oil-free rotary compressor |
| 09/25/2008 | US20080232993 Fastener member and gas compressor using the same |
| 09/24/2008 | CN201121587Y Novel quadrangle rotor compressor |
| 09/17/2008 | CN101265907A Cyclone compressor possessing abridged floating sealed device |
| 09/17/2008 | CN100419268C Scroll compressor |
| 09/16/2008 | US7425121 Rotary vane pump |
| 09/11/2008 | US20080219875 Magnetic drive vane pump |
| 09/11/2008 | US20080219874 Variable displacement vane pump |
| 09/11/2008 | US20080217862 Arrangement of a Shaft With a Mechanical Face Seal Mounted Thereon |
| 09/04/2008 | WO2008031012A3 Long life telescoping gear pumps and motors |
| 09/03/2008 | EP1553301B1 Vane type vacuum pump |
| 09/03/2008 | CN100416103C High pressure roots blower |
| 09/02/2008 | US7419370 Scroll compressor having a position adjustment device urging the movable scroll towards the stationary scroll by moving a seal formed between a support and the movable scroll |
| 09/02/2008 | US7419365 Compressor with capacity control |
| 08/27/2008 | CN201106558Y Oil-free scroll vacuum pump |
| 08/27/2008 | CN201106541Y Integration packing box of compressor |
| 08/27/2008 | CN100414107C Screw type liquid ring pump |
| 08/20/2008 | EP1957799A1 Helical screw compressor |
| 08/19/2008 | US7413419 Water-injected screw compressor |
| 08/14/2008 | US20080193313 Scroll Compressor |
| 08/13/2008 | EP1956245A2 Screw pump rotor and method of reducing slip flow |
| 08/13/2008 | CN101240850A Sealing structure and its spacer component |
| 08/09/2008 | CA2619195A1 Screw pump rotor and method of reducing slip flow |
| 08/06/2008 | CN201096089Y Automobile direct current electric vacuum pump |
| 07/31/2008 | WO2007019018A3 Controlled-clearance sealing compressor devices |
| 07/30/2008 | EP1948937A1 Rotor pump |
| 07/23/2008 | CN201090446Y Packaging type double end surface sealing device on Roots fan input shaft |
| 07/22/2008 | CA2438306C Water-injected screw compressor |
| 07/16/2008 | CN100402857C Scroll compressor |
| 07/09/2008 | EP1941162A1 Scroll compressor |
| 07/09/2008 | CN201083198Y Rolling rotary compressor |
| 07/09/2008 | CN201083196Y Rotary disc type compressor |
| 07/09/2008 | CN100400886C Apparatus for preventing overheating of scroll compressor |
| 07/03/2008 | US20080159895 Sealing structure and packing element thereof |
| 07/02/2008 | CN201080914Y Double screw rod vacuum fluid pump |
| 07/01/2008 | US7393192 Rotary vane pump |
| 07/01/2008 | US7393191 Internal refrigerant gas circulation apparatus for a closed-type scroll compressor |
| 06/26/2008 | WO2008075131A2 Power train unit, method for controlling such a unit and automotive vehicle equipped with such a unit |
| 06/25/2008 | EP1936197A1 Scroll compressor with vapor injection system |
| 06/25/2008 | EP1936196A2 Fluid machine |
| 06/25/2008 | EP1934481A1 Rotor pump |
| 06/25/2008 | EP1934480A1 Rotor pump and vane for a rotor pump |
| 06/25/2008 | CN100396933C Rotary compressor |
| 06/24/2008 | USRE40400 Capacity modulated scroll machine |
| 06/24/2008 | US7389649 Cooling system with variable duty cycle capacity control |
| 06/19/2008 | WO2008073334A2 Scroll compressor with capacity modulation |
| 06/19/2008 | WO2008070955A1 A rotary device |
| 06/19/2008 | US20080145254 Shaft Seal Device |
| 06/19/2008 | DE102006058837A1 Schmiermittelgedichtete Drehschiebervakuumpumpe Lubricant sealed rotary vane vacuum pump |
| 06/18/2008 | CN201075752Y Electrical machine for vacuum pump |
| 06/18/2008 | CN101203677A 旋转式真空泵 Rotary vacuum pump |
| 06/17/2008 | CA2449158C Liquid seal pump of the helical screw type |
| 06/12/2008 | US20080138227 Scroll compressor with capacity modulation |
| 06/04/2008 | EP1927756A2 Scroll machine |
| 06/04/2008 | EP1927755A2 Scroll machine |
| 05/29/2008 | US20080124236 Scroll-Type Apparatus |
| 05/29/2008 | DE102006056005A1 Eccentric fluid ring compressor for high pressure application, has hub projecting axially over hold-up locking ring and comprising locking plates, and cylinder comprising another pair of locking plates perpendicular to hub |
| 05/29/2008 | DE102006055158A1 Vane cell pump for pumping e.g. diesel, has embedded particles including higher hardness than matrix material, where large portion of embedded particles of contact region is exposed to contact surface, and overlapping on matrix material |
| 05/28/2008 | EP1925778A1 Vane pump |
| 05/28/2008 | CN101187370A Curved sliding vane type rotary compressor |
| 05/28/2008 | CN100390418C Compressor, and its manufacturing, re-manufacturing or repairing method |
| 05/21/2008 | EP1828615B1 Arrangement of a shaft with a slip-ring seal mounted thereon |
| 05/21/2008 | CN201062580Y Roots blower |
| 05/14/2008 | CN101178067A Quadrangle straight-lobe compressor |
| 05/14/2008 | CN100387846C Hermetic compressor |
| 05/13/2008 | CA2464230C Terminal block assembly for a hermetic compressor |
| 04/29/2008 | US7364418 Scroll fluid machine having an adjustment member with a deformable element |
| 04/24/2008 | US20080092374 Generator endplate removal tool and method |
| 04/24/2008 | DE102007010729B3 Vacuum pump for use in engine of motor vehicle, has sealing body flexibly designed and fixed at air discharge opening at front and rear ends of opening in rotation direction of rotor, where body lies permanently at opening |
| 04/23/2008 | CN201050481Y Mechanical seal leakage-free Root's vacuum pump |
| 04/23/2008 | CN201050480Y Mechanical seal oil-free Root's vacuum pump |
| 04/22/2008 | USRE40257 Compressor pulse width modulation |
| 04/09/2008 | CN101158355A Dry helical lobe compressor host rotor spindle rotor spindle sealing structure |
| 04/08/2008 | US7354259 Scroll compressor having a valved back pressure chamber and a bypass for overcompression |
| 04/02/2008 | EP1499793A4 Scroll type fluid displacement apparatus with fully compliant floating scrolls |
| 04/02/2008 | CN101156008A Shaft sealing |
| 04/02/2008 | CN101153597A Energy-saving single-bolt compressor |
| 04/02/2008 | CN101153594A A sealing device of fluid machinery |
| 04/02/2008 | CN101153591A Circular side bevel rotor pump |
| 04/02/2008 | CN100378335C Dual volume-ratio scroll machine |
| 03/27/2008 | US20080075616 Orbiting Valve For A Reciprocating Pump |
| 03/27/2008 | US20080075614 Sealing device of fluid machinery |
| 03/19/2008 | EP1899608A1 Rotary vacuum pump |
| 03/11/2008 | US7341440 Scroll compressor |
| 03/05/2008 | CN201031795Y High flow rate high-pressure pump |