| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 04/02/2009 | US20090087334 Sliding Vane Compression and Expansion Device |
| 04/02/2009 | US20090087332 Compressor Having Improved Sealing Assembly |
| 04/02/2009 | US20090085312 Scroll type fluid machine and air suspension apparatus using the same |
| 04/01/2009 | EP2042742A1 Fluid machine |
| 04/01/2009 | EP2042741A2 Two-stage compression rotary compressor |
| 04/01/2009 | EP2042740A2 two-stage rotary compressor |
| 04/01/2009 | EP2042739A1 Vacuum pump with two helical rotors |
| 04/01/2009 | EP2042738A2 Scroll type fluid machine and air suspension apparatus using the same |
| 04/01/2009 | EP1910682B1 Vacuum pump |
| 04/01/2009 | CN201215089Y Energy-conserving environment protection single screw air compressing unit |
| 04/01/2009 | CN201215086Y Vacuum pump |
| 04/01/2009 | CN201215085Y Arch slide block structure of rotating fluid machinery for varying slide circle center |
| 04/01/2009 | CN101400889A Slide valve with hot gas bypass port |
| 04/01/2009 | CN101398001A Two-stage rotary compressor |
| 04/01/2009 | CN101398000A Two-stage rotary compressor |
| 04/01/2009 | CN101397999A Rotor type compressor |
| 04/01/2009 | CN101397998A Slide holding device of rotary compressor and control method thereof |
| 04/01/2009 | CN101397997A Assembling method of rotary double cylinder compressor pump body |
| 04/01/2009 | CN101397996A Fluid pump |
| 04/01/2009 | CN101397995A Refrigerant compressor |
| 04/01/2009 | CN101397994A Scroll compressor with high side to low side oil bleed valve |
| 04/01/2009 | CN101397993A Scroll type compressor |
| 04/01/2009 | CN101397992A Scroll type fluid machine |
| 04/01/2009 | CN101397991A Scroll type fluid machine and air suspension apparatus using the same |
| 04/01/2009 | CN101397914A Novel mass flow blade mechanism |
| 04/01/2009 | CN100473838C Cooling of pump rotors |
| 04/01/2009 | CN100473837C One-way valve of compressor |
| 04/01/2009 | CN100473836C Oil supply structure of scroll compressor |
| 04/01/2009 | CN100473834C Rotary screw machine and method for transforming a motion in the same |
| 03/31/2009 | US7510382 Apparatus for preventing overheating of scroll compressor |
| 03/26/2009 | WO2009038138A1 Scroll compressor |
| 03/26/2009 | WO2009037968A1 Compressor |
| 03/26/2009 | WO2008145888A3 Method of assembling a refrigerating compressor |
| 03/26/2009 | DE202009000009U1 Stationärer Flügelverdichter Stationary vane compressor |
| 03/25/2009 | EP2039936A1 Scroll compressor |
| 03/25/2009 | EP2038555A1 Vane cell pump |
| 03/25/2009 | CN201212479Y High-pressure liquid sealed blocking ultra-screw compressor host |
| 03/25/2009 | CN201212478Y Blocking ultra-screw compressor host |
| 03/25/2009 | CN201212477Y Rotor sliding-vane compressor |
| 03/25/2009 | CN201212476Y Scroll compressor type tyre auto-inflation apparatus |
| 03/25/2009 | CN201212475Y Cavity-rotating pump |
| 03/25/2009 | CN101395377A Sliding component of compressor, sliding component base, scroll component, and compressor |
| 03/25/2009 | CN101395376A 压缩机及其制造方法 And a method of manufacturing a compressor |
| 03/25/2009 | CN101395344A Fluid machine |
| 03/25/2009 | CN101392751A Large pumping speed high vacuum dry vacuum pump |
| 03/25/2009 | CN101392750A Dry vacuum pump |
| 03/25/2009 | CN101392748A Horizontal type dry vacuum pump |
| 03/25/2009 | CN100472072C Orbiting vane compressor |
| 03/25/2009 | CN100472069C Scroll compressor |
| 03/25/2009 | CN100472068C Air-feeding device |
| 03/25/2009 | CN100472032C Two-lobe rotary machine |
| 03/19/2009 | WO2009035641A2 Compressor having a shutdown valve |
| 03/19/2009 | WO2009035640A1 Compressor sealing arrangement |
| 03/19/2009 | WO2009035639A1 Compressor having improved sealing assembly |
| 03/19/2009 | WO2009035626A2 Compressor with retaining mechanism |
| 03/19/2009 | WO2009035619A1 Compressor having shell with alignment features |
| 03/19/2009 | WO2009035337A1 A progressing cavity pump adapted for pumping of compressible fluids |
| 03/19/2009 | WO2009034964A1 Scroll compressor |
| 03/19/2009 | WO2009034717A1 Rotary fluid machine |
| 03/19/2009 | WO2009033986A1 Vacuum pump and method for controlling a gas ballast supply to a vacuum pump |
| 03/19/2009 | US20090074600 Rotary compressor |
| 03/19/2009 | US20090074593 Apparatus For Preventing Vacuum Of Scroll Compressor |
| 03/19/2009 | DE102007043674A1 Positive-displacement machine for compressible media, has spiral-shaped delivery chamber arranged in housings between cylinder walls |
| 03/19/2009 | DE102007043595A1 Positive-displacement machine for compressible media, has lubrication system which accommodates lubricant reservoir in housing for closed lubrication cycle |
| 03/19/2009 | DE102007043594A1 Displacement machine for compressible medium, has pressurization unit maintaining constant difference between pressures in conveying and lubricant chambers and acting on respective sides of sealing elements in operation |
| 03/19/2009 | DE102007043579A1 Positive-displacement machine for compressible media, has drive shaft which is supported by mount at drive-lateral end, where two counter weights are fitted on drive shaft |
| 03/19/2009 | DE102007043324A1 Method for pumping medium e.g. liquid medium, according to orbital displacer principle, to transport medium, involves providing orbital coil close to housing of coil for separating pressure side from inlet side continuously |
| 03/19/2009 | DE102006045261B4 Schraubenkompressor mit Förderraumkompression Screw compressor with delivery space compression |
| 03/18/2009 | CN201209561Y 罗茨鼓风机 Roots Blower |
| 03/18/2009 | CN201209558Y Screw of double-screw compressor |
| 03/18/2009 | CN201209557Y Screw of double-screw compressor |
| 03/18/2009 | CN201209556Y Screw of screw compressor |
| 03/18/2009 | CN201209554Y Flame-proof type oil gas recovering vacuum pump |
| 03/18/2009 | CN101387298A Double cylinders rotary compressor and freezing cycle device using the same |
| 03/18/2009 | CN101387296A Static vane compressor |
| 03/18/2009 | CN101387295A Double cylinder translation rotating compressing device |
| 03/18/2009 | CN101387294A Translational rotor type compressor |
| 03/18/2009 | CN100470058C Oil supply structure for screw compressor |
| 03/18/2009 | CN100470057C Step-type capacity varying apparatus of scroll compressor |
| 03/18/2009 | CN100470056C Secondary screw type compressor |
| 03/18/2009 | CN100470013C System for pumps, compressor, and engine structure |
| 03/17/2009 | US7503757 Oil pump having rotor receiving portion for restriction moving range of an outer rotor in a direction perpendicular to an eccentric direction |
| 03/12/2009 | WO2009031452A1 Scroll type fluid machine |
| 03/12/2009 | US20090068048 Compressor Sealing Arrangement |
| 03/12/2009 | US20090068047 Closed Type Fluid Machine |
| 03/12/2009 | US20090068046 Compressor and manufacturing method thereof |
| 03/12/2009 | US20090068043 Compressor Having Shell With Alignment Features |
| 03/11/2009 | EP2034187A1 Compressor |
| 03/11/2009 | EP2034131A1 Expander and compressor with integrated expander |
| 03/11/2009 | EP1948937B1 Rotor pump |
| 03/11/2009 | CN201206553Y Combination rolling rotor type compressor |
| 03/11/2009 | CN201206552Y Self-lubricating vacuum pressure combination air pump |
| 03/11/2009 | CN201206550Y Synchronous rotation fluid machinery |
| 03/11/2009 | CN201206549Y 涡旋压缩机 Scroll Compressor |
| 03/11/2009 | CN201206546Y Vane pump |
| 03/11/2009 | CN101384821A Uni-axial screw pump |
| 03/11/2009 | CN101382136A Scroll compressor with tapered slider block |
| 03/11/2009 | CN100467874C Low-pressure type orbiting vane compressor |
| 03/11/2009 | CN100467873C Axial force reducing structure of orbiting vane compressor |
| 03/11/2009 | CN100467872C Horizontal type orbiting vane compressor |