| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 09/01/2004 | CN1525072A Lubricating oil supplying apparatus of horizontal compressor |
| 09/01/2004 | CN1525071A Rotary piston type air compressor |
| 09/01/2004 | CN1164874C Vortex compressor |
| 09/01/2004 | CN1164873C Sliding-vane for rotary compressor and its manufacture method |
| 09/01/2004 | CN1164872C Spiral compressor with sliding block having spiral inner hole |
| 09/01/2004 | CN1164871C Scroll compressor |
| 09/01/2004 | CN1164395C High efficiency random orbital sander construction |
| 08/31/2004 | US6783338 Scroll type compressor having tip seals and a scroll coating layer |
| 08/26/2004 | WO2004072483A1 A scroll pump and method of assembling same |
| 08/26/2004 | US20040166007 Scroll compressor |
| 08/26/2004 | US20040165999 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/26/2004 | US20040165998 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/26/2004 | DE10197270T5 Vakuumpumpe Vacuum pump |
| 08/26/2004 | DE10123398B4 Spiralkompressor Scroll compressor |
| 08/25/2004 | EP1450044A2 Electric compressor and method of assembling the same |
| 08/25/2004 | CN2635944Y Inflator |
| 08/25/2004 | CN2635943Y Vortex disk for vortex compressor |
| 08/25/2004 | CN1523233A Closed compressor having a liquid tank |
| 08/25/2004 | CN1163670C Volumetric liquid machinery |
| 08/24/2004 | US6779993 Rotor profile for screw compressors |
| 08/19/2004 | US20040161345 Variable capacity rotary compressor |
| 08/19/2004 | US20040159115 Apparatus for driving a compressor and a refrigerating air conditioner |
| 08/19/2004 | US20040159112 Compressor diagnostic system |
| 08/18/2004 | EP1447566A1 Rotary-piston machine with rotary coalescing filter |
| 08/18/2004 | EP1447565A2 Rotary blower |
| 08/18/2004 | EP1446582A1 Compressor with z-plate |
| 08/18/2004 | CN1521403A 双缸旋转压缩机 Twin rotary compressor |
| 08/18/2004 | CN1521402A 可变容量的旋转压缩机 The variable capacity rotary compressor |
| 08/18/2004 | CN1162621C Volumetric pump |
| 08/17/2004 | US6776594 Rotor mechanism |
| 08/17/2004 | US6776593 Scroll compressor |
| 08/17/2004 | US6776592 Scroll type compressor |
| 08/17/2004 | US6776588 Dry compressing vacuum pump having a gas ballast device |
| 08/17/2004 | US6776586 Multi-stage vacuum pump |
| 08/17/2004 | CA2325085C Oiless rotary scroll air compressor air inlet valve |
| 08/12/2004 | US20040156735 Compressor |
| 08/12/2004 | US20040156734 Scroll compressor |
| 08/12/2004 | US20040154329 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/12/2004 | US20040154328 Vapor-compression evaporative air conditioning systems and components |
| 08/12/2004 | US20040154319 Compressor diagnostic system for communicating with an intelligent device |
| 08/12/2004 | DE10150302B4 Vorrichtung zur Erzeugung von Vakuum für Verbraucher in einem Kraftfahrzeug Device for generating a vacuum for consumers in a motor vehicle |
| 08/11/2004 | EP1445492A1 Gear oil pump for hermetic compressors |
| 08/11/2004 | EP1445491A1 Compressor for and method of simultaneously cooling and filtrating the gas |
| 08/11/2004 | EP1444441A1 Tempering method for a screw-type vacuum pump |
| 08/11/2004 | EP1444440A1 Cooled screw-type vacuum pump |
| 08/11/2004 | EP1444439A1 Vacuum pumps |
| 08/11/2004 | EP1370813A4 Hydristor heat pump |
| 08/11/2004 | EP1181454A4 Apparatus for preventing vacuum compression of scroll compressor |
| 08/11/2004 | CN2632345Y Scroll compressor pumps |
| 08/11/2004 | CN1161573C Multi-stage compression refrigerating device |
| 08/11/2004 | CN1161547C Compressor |
| 08/10/2004 | US6773244 Discharging part structure for compressor |
| 08/10/2004 | US6773243 Rotary piston machine for compressible media |
| 08/10/2004 | US6772607 Refrigerating device |
| 08/10/2004 | CA2326309C Oiless rotary scroll air compressor crankshaft assembly |
| 08/05/2004 | WO2004065795A1 Pump |
| 08/05/2004 | WO2004065794A1 Rotary compressor |
| 08/05/2004 | WO2004043194A3 Hair treatment method |
| 08/05/2004 | US20040151610 Fluid machinery |
| 08/05/2004 | US20040151603 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit |
| 08/05/2004 | US20040151602 Screw compressor |
| 08/05/2004 | US20040151601 Water-injected screw compressor |
| 08/04/2004 | EP1442221A1 Compressor |
| 08/04/2004 | EP1177383A4 Small-sized compressor |
| 08/04/2004 | EP1025341A4 Scroll-type fluid displacement device having flow diverter, multiple tip seal and semi-radial compliant mechanism |
| 08/04/2004 | CN2630524Y Slide valve for slide valve vacuum pump |
| 08/04/2004 | CN1518640A 压缩机 Compressor |
| 08/04/2004 | CN1518638A High-low pressure dome type compressor |
| 08/04/2004 | CN1517559A Variable capacitance rotary compressor |
| 08/04/2004 | CN1517558A Recovery method and device for feeding liquid of compression mechanism |
| 08/04/2004 | CN1517557A Rotary compressor and refrigerant circulation system with rotaray compressor |
| 08/04/2004 | CN1517556A Screw compressor and manufacturing method of its rotor |
| 08/04/2004 | CN1517555A Vortex compressor |
| 08/04/2004 | CN1517554A Vortex compressor |
| 08/04/2004 | CN1517553A Power regulation vortex machine |
| 08/04/2004 | CN1517547A 往复泵和真空泵 Reciprocating pumps and vacuum pumps |
| 08/04/2004 | CN1160515C Baseplate for sealing case |
| 08/03/2004 | US6769890 Gas rotary screw compressor |
| 08/03/2004 | US6769888 Scroll compressor having a valved back pressure chamber and a bypass for overcompression |
| 08/03/2004 | US6769887 Scroll compressor |
| 08/03/2004 | US6769881 Vacuum preventing device for scroll compressor |
| 08/03/2004 | US6769880 Pressure blowdown system for oil injected rotary screw air compressor |
| 08/03/2004 | US6769267 Multistage compressor |
| 08/03/2004 | US6769264 Control system of degree of superheat of air conditioner and control method thereof |
| 07/29/2004 | US20040146423 Injection molding metal powder mixture into a mold to form a green involute scroll; removal and sintering; alloying; compressors |
| 07/29/2004 | US20040146420 Scroll compressor |
| 07/29/2004 | US20040146419 Variable displacement mechanism for scroll type compressor |
| 07/29/2004 | US20040146414 Screw compressor with switched reluctance motor |
| 07/28/2004 | EP0987440B1 Capacity control scroll compressor |
| 07/28/2004 | EP0982498B1 Capacity control scroll compressor |
| 07/28/2004 | CN1515804A Eccentric rotation shaft and electric motor shaft mfg. method |
| 07/28/2004 | CN1515799A 流体机械 Fluid Machinery |
| 07/28/2004 | CN1515798A Method for mfg. vortex compressor and its cross ring |
| 07/28/2004 | CN1515797A Closed rotary compressor |
| 07/28/2004 | CN1159529C Scrawl compressor |
| 07/27/2004 | CA2189212C Fluid compression/expansion machine with fluted main rotor having ruled surface root and method of manufacture |
| 07/22/2004 | WO2004061310A1 Coated end wall of a compressor chamber and method of manufacture thereof |
| 07/22/2004 | WO2004030792A3 Compressor systems for use with smokeless lubricant |
| 07/22/2004 | US20040141864 Non-circular centered seal for back pressure chamber |
| 07/22/2004 | US20040141859 Compressor with internal accumulator for use in split compressor |