Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
08/2007
08/08/2007CN101012828A Axial flow positive displacement worm compressor
08/08/2007CN101012827A Scroll type fluid machine
08/02/2007WO2007087098A1 Improved scroll-type fluid displacement apparatus with fully compliant floating scrolls
08/02/2007US20070178002 Scroll compressor
08/02/2007CA2569762A1 Axial flow positive displacement worm compressor
08/01/2007EP1813818A2 Evacuating apparatus
08/01/2007EP1813817A2 Multi-stage rotary compressor
08/01/2007EP1813816A2 Multi-stage rotary compressor
08/01/2007EP1813815A2 Multi-stage rotary compressor
08/01/2007EP1813814A2 Compression system
08/01/2007EP1813813A2 Scroll fluid machine
08/01/2007CN2929305Y Vortex compressor combined bias shaft
08/01/2007CN2929262Y Rotary compressor
08/01/2007CN2929261Y 高真空罗茨真空泵 High vacuum pumps Roots
08/01/2007CN1329665C Oil supplier of vortex compressor
08/01/2007CN1329664C Inspiration structure of rotary compressor
08/01/2007CN1329663C Valve for screw compressor
08/01/2007CN1329662C Vortex compressor
08/01/2007CN1329661C Device for preventing vacuum compression of vortex compressor
08/01/2007CN101010516A Cooling of pump rotors
08/01/2007CN101010514A Blade for a single-blade vacuum pump
08/01/2007CN101008390A Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same
08/01/2007CN101008389A Sealed rotary compressor and refrigerating circulation device comprising same
08/01/2007CN101008388A Full cover type air compressor device for mining
08/01/2007CN101008387A 涡旋流体机 Scroll fluid machine
08/01/2007CN101008386A Scroll fluid machine
08/01/2007CN101008385A Apparatus for reducing foaming of scroll compressor
08/01/2007CN101008321A Improved scroll-type fluid displacement apparatus with fully compliant floating scrolls
07/2007
07/26/2007WO2007082831A1 Vacuum pump
07/26/2007US20070172376 Vacuum pump
07/26/2007US20070172374 Expander
07/26/2007US20070172361 Cleaning method of a rotary piston vacuum pump
07/26/2007DE102006059451A1 Schneckenkompressor Screw compressor
07/26/2007DE102005042451B4 Vakuumpumpvorrichtung Vacuum pumping device
07/25/2007EP1811181A1 Electric pump for hydrogen circulation
07/25/2007EP1811180A2 Scroll fluid machine
07/25/2007EP1811179A2 Scroll fluid machine
07/25/2007CN2926585Y Refrigerating compressor
07/25/2007CN1328842C Assembly method of motor housing and motor stator of sealed type compressor
07/25/2007CN1328513C Method for designing molded lines of rotor of helical lobe compressor
07/25/2007CN101004173A Rolling piston type compressor with no reservoir
07/25/2007CN101003880A Method for manufacturing slip-sheet of compressor
07/24/2007US7247009 Scroll compressor with slider block having upper surface over enlarged area
07/24/2007US7247008 Cam ring bearing for fuel delivery system
07/19/2007WO2007080371A1 Scroll-type apparatus
07/19/2007WO2007079551A1 Compressor installation with a water-injected compressor element
07/19/2007US20070163589 Portable ventilator system
07/18/2007EP1808602A1 Muffler installation structure for compressor
07/18/2007EP1471256B1 Enclosed type compressor
07/18/2007EP1438510B1 Vacuum pump
07/18/2007CN2924085Y Liquid-jet cooling device of screw-bar compressor
07/18/2007CN1327137C Rotary compressor
07/18/2007CN1327136C 螺旋压缩机 Screw compressors
07/18/2007CN101002024A Blade for a single-blade vacuum pump
07/18/2007CN101002023A Single-winged vacuum pump
07/18/2007CN101002022A Single-winged vacuum pump
07/18/2007CN101002021A Single-winged vacuum pump
07/18/2007CN101000054A Rotating type compressor sliding vane controlling apparatus and its controlling method and application
07/18/2007CN101000053A 旋转压缩机 Rotary compressor
07/18/2007CN101000014A Engine mechanical pressurizing apparatus
07/17/2007US7244114 Scroll compressor
07/12/2007WO2007078175A1 Pump and pumping system utilizing the same
07/12/2007WO2007077857A1 Electric compressor
07/12/2007US20070160488 Scroll compressor
07/12/2007US20070160487 Rotary combustion apparatus
07/12/2007US20070160486 Rotary compressor
07/11/2007EP1806475A1 Rotary compressor
07/11/2007CN2921375Y Variable frequency helical-lobe refrigerating compressor
07/11/2007CN1995757A Rotary type displacement compressor
07/11/2007CN1995756A Scroll mechanism
07/11/2007CN1995706A Single-claw design method for claw type rotor
07/11/2007CN1995705A Tri-claw and more design method for claw type rotor
07/11/2007CN1325800C Double-cylinder rotary compressor
07/10/2007US7241121 Scroll fluid machine
07/10/2007CA2396910C A screw compressor injected with water
07/05/2007WO2007076213A1 Screw compressor with oil feed system
07/05/2007WO2007074852A1 Electric compressor
07/05/2007WO2007074807A1 Screw-type fluid machine
07/05/2007WO2007074795A1 Single stage roots vacuum pump and vacuum fluid transport system employing that single stage roots vacuum pump
07/05/2007WO2007074638A1 Compressor
07/05/2007WO2007074637A1 Compressor
07/05/2007WO2007074631A1 Rotary compressor
07/05/2007WO2006125010A3 Balancing plate-shuttle ball
07/05/2007US20070154328 Rotary compressor
07/05/2007DE102006058229A1 Oil pump for screw compressor, has drive shaft with internal oil passage whereby pump body is provided with drive shaft insertion groove, into which drive shaft is inserted
07/04/2007EP1803939A1 Slide member and fluid machine
07/04/2007EP1802858A2 Gerotor apparatus for a quasi-isothermal brayton cycle engine
07/04/2007CN1991177A Secondary screw type compressor
07/04/2007CN1991176A Compressor vibration damper
07/04/2007CN1991132A Single-pawl and double-pawl design method of pawl type rotor
07/04/2007CN1324276C Very low temperature refrigeration system having a scroll compressor with liquid injection
07/04/2007CN1324241C Variable capacity rotary compressor
07/04/2007CN1324240C Hermetic compressor
07/04/2007CN1324239C Pump for generating pressure or negative pressure
07/04/2007CN1324220C Rotary-piston machinery
07/04/2007CN1324219C Scroll fluid machine
07/04/2007CN1323805C Pin gear rotor and block fluid transportation apparatus
07/03/2007US7238011 Scroll compressor
07/03/2007US7237432 Vane pump, method for adjusting pump flow rate of vane pump and fuel vapor leakage check module having vane pump
06/2007
06/28/2007WO2007073009A1 A uni-axial screw pump
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