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