Patents for F04C 23 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids (6,201) |
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08/15/2007 | CN101016899A Shaft coupling device used for internal transmission of single machine two-stage screw bolt refrigerant compressor |
08/15/2007 | CN101016844A Golden proportion of design for oscillating-piston mechanical structure |
08/14/2007 | US7255541 Fluid pump |
08/09/2007 | WO2007088989A1 Vacuum pump unit |
08/08/2007 | CN1330879C Roots pump |
08/08/2007 | CN101012831A Rotor type twin cylinder compressor taking air-breathing through partition board |
08/07/2007 | US7252487 Multi-stage rotary compressor having rollers which are different in thickness |
08/01/2007 | EP1813818A2 Evacuating apparatus |
08/01/2007 | EP1813817A2 Multi-stage rotary compressor |
08/01/2007 | EP1813816A2 Multi-stage rotary compressor |
08/01/2007 | EP1813815A2 Multi-stage rotary compressor |
08/01/2007 | EP1813814A2 Compression system |
08/01/2007 | CN101008390A Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same |
08/01/2007 | CN101008388A Full cover type air compressor device for mining |
07/26/2007 | US20070172374 Expander |
07/26/2007 | US20070172370 Capacity control device and capacity control method for screw compressor |
07/25/2007 | CN1328842C Assembly method of motor housing and motor stator of sealed type compressor |
07/18/2007 | EP1471256B1 Enclosed type compressor |
07/18/2007 | EP1438510B1 Vacuum pump |
07/17/2007 | US7244114 Scroll compressor |
07/11/2007 | EP1806475A1 Rotary compressor |
07/11/2007 | CN1325800C Double-cylinder rotary compressor |
07/11/2007 | CN1325799C Reduced wear pump rotor and pump comprisng same |
07/11/2007 | CN1325794C Terminal hood device and compressor |
07/05/2007 | US20070154334 Compressor and method of plate installation |
07/05/2007 | US20070154329 Refrigeration cycle system |
07/04/2007 | CN1991178A Double-cylinder rotary sealing type compressor and manufacturing method thereof |
07/04/2007 | CN1991177A Secondary screw type compressor |
07/04/2007 | CN1324241C Variable capacity rotary compressor |
07/04/2007 | CN1324240C Hermetic compressor |
07/04/2007 | CN1324219C Scroll fluid machine |
06/28/2007 | US20070148026 Compressor |
06/21/2007 | US20070140881 Multistage compression type rotary compressor |
06/20/2007 | EP1798373A2 Multistage hermetic rotary compressor |
06/20/2007 | EP1797329A1 Arrangement and method for treatment of compressed gas |
06/20/2007 | CN1982718A Multistage compression type rotary compressor |
06/19/2007 | US7232295 Tempering method for a screw-type vacuum pump |
06/19/2007 | US7232291 Variable capacity rotary compressor |
06/14/2007 | WO2007065486A1 Multi-step helical screw compressor unit |
06/13/2007 | EP1795838A2 Multistage compression type rotary compressor and cooling device |
06/13/2007 | EP1795701A1 Fluid machine |
06/13/2007 | CN2911259Y Capacity controlling compressor |
06/13/2007 | CN1981133A 旋转式流体机械 Rotary fluid machine |
06/13/2007 | CN1978913A Double-rotor rotary compressor |
06/13/2007 | CN1978906A Rolling-rotor type compression-expansion machine |
06/13/2007 | CN1978905A Rolling rotor-type expansion machine |
06/13/2007 | CN1978904A Two-stage rolling rotor-type compressor |
06/13/2007 | CN1321301C Fluid machine |
06/07/2007 | WO2007063341A1 Multi-stage roots vacuum pump |
06/06/2007 | EP1792084A2 System and method of refrigeration |
06/06/2007 | EP1792083A1 Capacity variable type twin rotary compressor and driving method thereof and airconditioner with this and driving method thereof |
06/06/2007 | CN1976181A Synchronous reluctance motor and compressor having the same |
06/06/2007 | CN1975169A 旋转式压缩机 Rotary compressor |
06/06/2007 | CN1320280C 涡旋压缩机 Scroll Compressor |
06/05/2007 | US7226275 Variable capacity rotary compressor |
05/31/2007 | US20070122284 Rotary compressor |
05/30/2007 | EP1790857A1 Rotary piston compressor |
05/30/2007 | CN1971052A Displacement-variable compressor and method for operating same |
05/30/2007 | CN1971051A Compressor with variable volume |
05/30/2007 | CN1318760C Multi-stage compressive rotary compressor and refrigerant return device employing same |
05/30/2007 | CN1318759C Scroll compressor |
05/29/2007 | US7223082 Rotary compressor |
05/29/2007 | US7223081 Variable capacity rotary compressor |
05/23/2007 | EP1358408B1 Horizontal scroll compressor |
05/23/2007 | CN1317510C Variable capacity rotary compressor |
05/22/2007 | US7220110 Compressor having a throttled-return passage connecting an oil accumulator to a seal container |
05/22/2007 | US7220108 Variable capacity rotary compressor |
05/17/2007 | US20070110605 Scroll compressor |
05/17/2007 | US20070110604 Scroll machine |
05/16/2007 | EP1785629A2 Rotary compressor |
05/16/2007 | CN1963216A Volume variable rotating blade type compressor |
05/16/2007 | CN1963215A Volume variable rotating compressor |
05/16/2007 | CN1963210A Two-stage compression type rotating blade compressor |
05/16/2007 | CN1316212C Refrigerant circulation device |
05/10/2007 | WO2007052569A1 Expander and heat pump using the same |
05/10/2007 | US20070104600 Oscillating piston pump |
05/10/2007 | US20070104587 Evacuation apparatus |
05/09/2007 | EP1339987B1 Hermetic compressor |
05/09/2007 | CN2898369Y Convenient cable-pipe air-charger |
05/09/2007 | CN1961154A Rotary fluid machine |
05/09/2007 | CN1959116A Hermetic two-stage rotary compressor |
05/08/2007 | US7214044 Compressor having an oil passage which one end is connected to oil collecting groove and other end is opened to cover end surface of bearing |
05/08/2007 | US7214041 Seal assemblies |
05/08/2007 | US7214036 Screw type vacuum pump |
05/03/2007 | DE10141397B4 Motorangetriebener Kompressor Engine Driven Compressor |
05/02/2007 | CN1957181A 旋转式压缩机 Rotary compressor |
05/02/2007 | CN1955479A Variable capacity rotary compressor with double-case and its running method |
05/02/2007 | CN1955478A Variable capacity twin rotary compressor and its running method |
05/02/2007 | CN1955477A 多级旋转压缩机 Multi-stage rotary compressor |
05/02/2007 | CN1955476A Variable capacity multi-cylinder rotary compressor and its running method |
05/02/2007 | CN1955475A 回转压缩机 Rotary Compressor |
05/02/2007 | CN1955474A 多阶段旋转压缩机 Multi-stage rotary compressor |
05/02/2007 | CN1955473A 多级旋转压缩机 Multi-stage rotary compressor |
04/25/2007 | EP1777413A2 Two-stage rotary compressor |
04/25/2007 | CN2893232Y Rotary double-cylinder compressor of eccentric shaft thrust mechanism |
04/25/2007 | CN1952396A Double stage screw rod compressor and double stage compressing refrigerator using same |
04/25/2007 | CN1952395A Scroll compressor and refrigerating system using ammonia |
04/25/2007 | CN1312402C Screw compressor |
04/24/2007 | US7207787 Scroll compressor with backflow-proof mechanism |
04/18/2007 | CN1950612A Hermetic rotary compressor |