Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
06/2007
06/28/2007US20070148026 Compressor
06/28/2007CA2640143A1 A uni-axial screw pump
06/27/2007EP1800003A1 Screw compressor seal
06/27/2007CN1989184A Composition for sliding member, sliding member, and fluid machine
06/27/2007CN1987107A Oil-cooling screw compressor
06/27/2007CN1987106A Portable vacuum pump apparatus
06/27/2007CN1987105A 微型气泵 Micro-pump
06/27/2007CN1987051A Design method for blade of claw rotor
06/27/2007CN1323243C 同步回转式压缩机 Synchronous rotary compressor
06/26/2007US7234925 Screw pump
06/26/2007US7234923 Scroll fluid machine having a dust seal fitted within annular groove and having ends overlapped in the wider portion of the annular groove
06/26/2007US7234344 Vane pump and fuel vapor leakage check module having the same
06/26/2007US7234310 Very low temperature refrigeration system having a scroll compressor with liquid injection
06/26/2007CA2272626C Method and apparatus for accurately dispensing liquids and solids
06/21/2007WO2007068973A1 Screw pump
06/21/2007WO2007068246A1 A screw compressor
06/21/2007WO2007041224A3 Hydrogen g-cycle rotary internal combustion engine
06/21/2007WO2006062844A3 Rotationally induced variable volume chambers
06/21/2007US20070137610 Rotary engine
06/20/2007EP1798416A1 Rotary compressor with improved working efficiency and relative method
06/20/2007EP1798373A2 Multistage hermetic rotary compressor
06/20/2007EP1797328A1 Scroll pump with controlled axial thermal expansion
06/20/2007CN2913716Y Crankshaft of sealed rotary compressor
06/20/2007CN2913682Y Four-leaf Roots blower
06/20/2007CN1985134A 压缩机 Compressor
06/20/2007CN1982718A Multistage compression type rotary compressor
06/20/2007CN1982717A Convenient single-screw compressor
06/19/2007US7232298 Screw compressor in which the trailing flanks of the lobes of at least one rotor body are beveled at an end surface of the rotor body near the outlet port
06/19/2007US7232297 Screw pump
06/19/2007US7232296 Serviceability features for a scroll fluid machine
06/19/2007US7232295 Tempering method for a screw-type vacuum pump
06/19/2007US7232291 Variable capacity rotary compressor
06/14/2007WO2007066486A1 Roots pump and fuel cell system
06/14/2007WO2007066463A1 Scroll compressor
06/14/2007WO2007065487A1 Helical screw compressor
06/14/2007WO2007065486A1 Multi-step helical screw compressor unit
06/14/2007WO2007065485A1 Helical screw compressor comprising a cooling jacket
06/14/2007WO2007065484A1 Helical screw compressor
06/14/2007US20070134117 Scroll type compressor with an enhanced sealing arrangement
06/14/2007US20070131197 Method for increasing the effect to be produced in a motor, pump or the like
06/14/2007DE102006000512A1 Wälzkolbenfluidmaschine Wälzkolbenfluidmaschine
06/13/2007EP1795838A2 Multistage compression type rotary compressor and cooling device
06/13/2007EP1795701A1 Fluid machine
06/13/2007CN2911258Y Vehicle twisted tooth mechanical aerator
06/13/2007CN2911257Y Rotor type compressor of air conditioner
06/13/2007CN1981133A 旋转式流体机械 Rotary fluid machine
06/13/2007CN1978906A Rolling-rotor type compression-expansion machine
06/13/2007CN1978905A Rolling rotor-type expansion machine
06/13/2007CN1978904A Two-stage rolling rotor-type compressor
06/13/2007CN1978903A Upper bearing of rotary compressor
06/13/2007CN1978902A Variable-frequency compressor
06/13/2007CN1321301C Fluid machine
06/12/2007US7229261 Scroll compressor having an annular recess located outside an annular seal portion and another recess communicating with suction port of fixed scroll
06/07/2007WO2007064927A2 Pulsatile rotary ventricular pump
06/07/2007WO2007064866A2 Rotary combustion apparatus
06/07/2007WO2007063341A1 Multi-stage roots vacuum pump
06/07/2007US20070128065 Pump
06/07/2007US20070128064 Meshing surfaces for intersecting vanes
06/07/2007US20070128063 Rotating piston machine
06/06/2007EP1792083A1 Capacity variable type twin rotary compressor and driving method thereof and airconditioner with this and driving method thereof
06/06/2007CN1975169A 旋转式压缩机 Rotary compressor
06/06/2007CN1975168A 涡卷压缩机 Scroll compressor
06/06/2007CN1975167A Double-rotary pump
06/06/2007CN1320280C 涡旋压缩机 Scroll Compressor
06/06/2007CN1320278C Screw compressor assembly and method
06/06/2007CN1320277C Vacuum compression preventer of vortex compressor
06/05/2007US7226275 Variable capacity rotary compressor
06/05/2007US7225789 Sealing intersecting vane machines
05/2007
05/31/2007WO2007062116A1 Internal combustion engine
05/31/2007WO2007061385A1 Magnetic trap for ferrous contaminants in lubricant
05/31/2007US20070122284 Rotary compressor
05/30/2007EP1790857A1 Rotary piston compressor
05/30/2007EP1790856A1 Scroll compressor
05/30/2007CN2906140Y 半封闭转子活塞式制冷压缩机 Semi-hermetic reciprocating refrigeration compressor rotor
05/30/2007CN2906139Y Totally-enclosed rotor piston type refrigeration compressor
05/30/2007CN1971050A Vortex type compressor
05/30/2007CN1971048A Scroll fluid machine
05/30/2007CN1318760C Multi-stage compressive rotary compressor and refrigerant return device employing same
05/30/2007CN1318759C Scroll compressor
05/29/2007US7223083 Scroll compressor
05/29/2007US7223082 Rotary compressor
05/29/2007US7223081 Variable capacity rotary compressor
05/29/2007US7222601 Rotary valveless internal combustion engine
05/29/2007US7222493 Compressor diagnostic system
05/24/2007US20070116582 Compressor mounting bracket and method of making
05/24/2007DE102005054487A1 Verfahren zur Erwärmung dampfförmiger Arbeitsmittel Method of heating vaporous working medium
05/23/2007EP1788250A1 Method and apparatus for compressor re-manufacture
05/23/2007EP1358408B1 Horizontal scroll compressor
05/23/2007CN1969126A Screw pump and screw gear
05/23/2007CN1966989A Oil supply unit for horizontal compressor
05/23/2007CN1966988A Upper bearing structure in rotary compressor
05/23/2007CN1966987A Upper bearing structure in rotary compressor
05/23/2007CN1966986A Upper bearing structure in rotary compressor
05/23/2007CN1966985A Volume varying device for blade type compressor
05/23/2007CN1966984A Compressor pump comprising spherical cylinder, impeller, and sloping cam plate
05/23/2007CN1966983A Rotating and swing type compressor structure
05/23/2007CN1966982A Single-unit two-stage screw refrigeration compressor set and using method therefor
05/23/2007CN1966981A Vortex fluid machinery, refrigerating circulation device
05/23/2007CN1317510C Variable capacity rotary compressor
05/22/2007US7220110 Compressor having a throttled-return passage connecting an oil accumulator to a seal container
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