| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 10/02/2008 | US20080240962 Gas Vane Pump, and Method of Operating the Pump |
| 10/02/2008 | US20080240961 Swing Compressor |
| 10/02/2008 | US20080240958 Rotary Fluid Machine |
| 10/02/2008 | US20080240956 Scroll fluid machine |
| 10/02/2008 | US20080240954 Rotary compressor |
| 10/02/2008 | DE102007014554A1 Rotary piston blower for use as root blower, has rotary piston unit with rotary pistons, and housing wall formed with gas discharge opening, and edge limiting gas discharge opening with partial section movably arranged |
| 10/02/2008 | DE102007014542A1 Rotating piston blowers has rotating piston unit with two rotary pistons and another rotating piston unit with two rotary pistons, which are disposed in housing |
| 10/01/2008 | EP1975415A2 Rotary compressor unit and method of controlling operation thereof |
| 10/01/2008 | EP1975413A1 Multi stage 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 | EP1975370A1 Rotary compressor with accumulator and heat pump system |
| 10/01/2008 | EP1974144A1 Pump and pumping system utilizing the same |
| 10/01/2008 | CN201125867Y Rotary vane type automobile air conditioner compressor |
| 10/01/2008 | CN201125866Y Planetary type helical air compressing engine |
| 10/01/2008 | CN101275799A Digital controller for scroll compressor condensing unit |
| 10/01/2008 | CN101275569A Suction mouth hull block of rotation-type compressor |
| 10/01/2008 | CN101275567A Powder metal scrolls |
| 10/01/2008 | CN101275562A Rotary compressor |
| 10/01/2008 | CN101275561A Baffle plate structure of rotation-type compressor |
| 10/01/2008 | CN101275560A Cylinder of rotation-type compressor |
| 10/01/2008 | CN101275559A Rolling rotor type cold compressor |
| 10/01/2008 | CN101275558A A scroll fluid machine |
| 10/01/2008 | CN101275557A Swirl type cold compressor |
| 10/01/2008 | CN101275556A Rotation-type compressor |
| 10/01/2008 | CN100422561C Cooled screw-type vacuum pump |
| 10/01/2008 | CN100422560C Rotary piston machine for compressible media |
| 09/30/2008 | US7429167 Scroll machine having a discharge valve assembly |
| 09/30/2008 | CA2497055C Discharge porting for screw compressor with tangential flow guide cusp |
| 09/25/2008 | WO2008115016A1 Compressor and device for reducing vibration therefor |
| 09/25/2008 | WO2008114860A1 Multistage compressor |
| 09/25/2008 | US20080232994 Inner Rotor of Internal Gear Pump |
| 09/25/2008 | US20080232992 Fluid Machine |
| 09/25/2008 | US20080232991 Rotary fluid machine |
| 09/25/2008 | DE102008010933A1 Spiralverdichter und Herstellungsverfahren dafür A scroll compressor, and manufacturing method thereof |
| 09/24/2008 | EP1972870A2 Refrigerant cycling device and compressor using the same |
| 09/24/2008 | EP1972787A2 Rotary compressor with noise silencing chamber. |
| 09/24/2008 | EP1972786A2 Rotary compressor, car air conditioner and water heater including the compressor |
| 09/24/2008 | EP1972785A1 Check valve for a vacuum pump |
| 09/24/2008 | EP1972754A1 Fastener member and gas compressor using the same |
| 09/24/2008 | EP1971781A1 Vacuum pump |
| 09/24/2008 | EP1971780A1 Scroll-type apparatus |
| 09/24/2008 | CN201121587Y Novel quadrangle rotor compressor |
| 09/24/2008 | CN101270751A Scroll compressor |
| 09/24/2008 | CN101270750A Mechanical vacuum system in grease processing technique |
| 09/24/2008 | CN101270749A Oil-free helical lobe compressor rotor anti-seizing protection method and device |
| 09/24/2008 | CN101270748A Balancing type cam rotor pump |
| 09/23/2008 | US7427192 Toothing of a toothed wheel |
| 09/18/2008 | US20080226485 Rotation body cleaning unit and vacuum pump having the same |
| 09/18/2008 | US20080226481 Screw Vacuum Pump |
| 09/18/2008 | DE102008013784A1 Kompressor Compressor |
| 09/18/2008 | DE102004057255B4 Motorgetriebener Roots-Verdichter Motor-driven Roots pump |
| 09/17/2008 | EP1970646A1 Refrigerant cycling device and compressor using the same |
| 09/17/2008 | EP1970645A1 Compressor |
| 09/17/2008 | EP1970644A1 Compressor with oil accumulator |
| 09/17/2008 | EP1970568A1 Electric compressor |
| 09/17/2008 | EP1969231A1 A uni-axial screw pump |
| 09/17/2008 | CN101268280A 涡旋式压缩机 Scroll compressor |
| 09/17/2008 | CN101265911A Natural gas compressor |
| 09/17/2008 | CN101265910A Screw rod compressor |
| 09/17/2008 | CN101265909A Ceramic sliding blade for hermetic rotary compressor |
| 09/17/2008 | CN101265907A Cyclone compressor possessing abridged floating sealed device |
| 09/17/2008 | CN101265906A Rotary type compressor |
| 09/17/2008 | CN101265905A Scroll fluid machine |
| 09/17/2008 | CN101265904A Highly effective low noise scroll-type compressor for electric automobile |
| 09/17/2008 | CN101265857A Refrigerating apparatus and fluid machine therefor |
| 09/17/2008 | CN101265557A Rotary compressor roller material and method for producing roller |
| 09/17/2008 | CN100419352C Vortex machine with continuous power regulation |
| 09/17/2008 | CN100419270C Exhaust valve of compressor |
| 09/17/2008 | CN100419269C Gas compressor |
| 09/17/2008 | CN100419268C Scroll compressor |
| 09/16/2008 | US7425121 Rotary vane pump |
| 09/16/2008 | CA2417051C Twin screw rotors and displacement machines containing the same |
| 09/12/2008 | WO2008108122A1 Rotor drive mechanism, shaft seal structure for eccentric shaft, and pump device |
| 09/12/2008 | WO2008106990A1 Compressor device |
| 09/12/2008 | WO2008073334A3 Scroll compressor with capacity modulation |
| 09/11/2008 | US20080219875 Magnetic drive vane pump |
| 09/11/2008 | DE102007011733A1 Operating method for a worm/screw compressor with a rotor uses an arrangement of bearings in a casing while fitting the rotor in a defined axial position in relation to the casing |
| 09/10/2008 | EP1967738A1 Compressor |
| 09/10/2008 | EP1967737A1 Rotary compressor |
| 09/10/2008 | EP1967736A1 Compressor |
| 09/10/2008 | EP1967735A1 Single stage roots vacuum pump and vacuum fluid transport system employing that single stage roots vacuum pump |
| 09/10/2008 | EP1967734A1 Screw-type fluid machine |
| 09/10/2008 | EP1967732A1 Electric compressor |
| 09/10/2008 | CN101260885A Oil-free fluid machine having two or more rotors |
| 09/10/2008 | CN101260884A Compressor |
| 09/10/2008 | CN101260883A Three-vane synchronous reciprocating blower |
| 09/10/2008 | CN100417816C Screw profile for high-flow high-pressure three-screw pump |
| 09/10/2008 | CN100417815C Apparatus for preventing gas reflux of vortex compressor |
| 09/09/2008 | US7422423 Refrigerant compressor, and refrigerating machine using the same |
| 09/09/2008 | US7421998 Modular engine |
| 09/04/2008 | WO2008105275A1 Scroll-type fluid machine |
| 09/04/2008 | WO2008105219A1 Scroll compressor |
| 09/04/2008 | WO2008105090A1 Rotary compressor |
| 09/04/2008 | DE102008008155A1 Rootspumpe Roots pump |
| 09/03/2008 | EP1965022A1 Rotary fluid machine and refrigerating cycle device |
| 09/03/2008 | EP1963679A1 Screw compressor with oil feed system |
| 09/03/2008 | EP1963678A1 A screw compressor |
| 09/03/2008 | EP1553301B1 Vane type vacuum pump |