| 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) |
|---|
| 07/23/2009 | WO2009090888A1 Rotary fluid machine |
| 07/22/2009 | EP1886024B1 Scroll-type refrigerant compressor |
| 07/22/2009 | CN201277177Y Marine ballasting fan unit |
| 07/22/2009 | CN101487470A Double-machine two-stage screw type low-temperature compressor unit |
| 07/22/2009 | CN100516532C Vacuum pump |
| 07/22/2009 | CN100516531C Double cylinder rotary compressor |
| 07/21/2009 | US7563085 Multicylinder rotary compressor and compressing system and refrigerating unit provided with same |
| 07/21/2009 | US7563084 Rotary fluid machine |
| 07/21/2009 | US7563081 Gas compressor |
| 07/21/2009 | US7563080 Rotary compressor |
| 07/15/2009 | EP2078862A2 Rotary compressor |
| 07/15/2009 | EP2078861A2 Two-stage rotary compressor |
| 07/15/2009 | CN100513794C Compressor sound attenuation enclosure |
| 07/14/2009 | US7559752 Dual-shaft vacuum pump |
| 07/14/2009 | US7559750 Overheating protection apparatus of scroll compressor |
| 07/09/2009 | US20090175748 Multi-stage compressor unit for refrigeration system |
| 07/08/2009 | CN100510419C Gas container for multicylinder compressor |
| 07/08/2009 | CN100510418C 旋转压缩机 Rotary compressor |
| 07/08/2009 | CN100510412C Closed rotary compressor |
| 07/08/2009 | CN100510396C High-low pressure dome type compressor |
| 07/07/2009 | US7556483 Electronic compressor having a reservoir chamber and an oil return passage for connecting the reservoir chamber with a suction chamber |
| 07/02/2009 | WO2009081788A1 Screw compressor |
| 07/01/2009 | EP2075471A2 Electric compressor |
| 07/01/2009 | EP2075405A2 Vane-type compressor |
| 07/01/2009 | CN101469708A Mining air strong sucking-exhausting and rapid escape fan |
| 06/30/2009 | US7553141 Rotary fluid machine with a suction shutoff angle of the outer cylinder chamber being greater than a suction shutoff angle of the inner cylinder chamber |
| 06/25/2009 | WO2009050126A4 Scroll device for compression or expansion |
| 06/24/2009 | EP2072821A2 Motor-driven compressor |
| 06/24/2009 | EP2072754A2 Motor-driven compressor with multi-part casing |
| 06/24/2009 | CN101463817A Double-power magnetically-actuated pump |
| 06/23/2009 | US7549851 Rotary fluid machine having a pair of rotation mechanisms and a partition plate disposed between the rotation mechanisms |
| 06/18/2009 | DE102007060106A1 Coupling arrangement for the selective rotary coupling of the input shaft of a compressor in a vehicle comprises friction element supports, an abutment plate, a pressing plate and actuating arrangements |
| 06/18/2009 | DE102007059938A1 Vakuumpumpe und Verfahren zum Betrieb A method of operating vacuum pump and |
| 06/17/2009 | EP2071191A2 Vacuum pump housing |
| 06/17/2009 | CN100501167C Compressor |
| 06/17/2009 | CN100501164C Scroll compressor |
| 06/10/2009 | EP2066948A2 Access cover for pressurized connector spool |
| 06/10/2009 | CN201255113Y Double stage sliding valve vacuum pump |
| 06/10/2009 | CN100498121C 致冷剂循环装置 A refrigerant circulating apparatus |
| 06/10/2009 | CN100496966C Luminium parts assemblied by arc welding |
| 06/09/2009 | US7546178 Aligner evaluation system, aligner evaluation method, a computer program product, and a method for manufacturing a semiconductor device |
| 06/04/2009 | WO2009069611A1 Freezing apparatus |
| 06/04/2009 | DE19848413B4 Motor-Pumpeneinheit Motor-pump unit |
| 06/03/2009 | CN201250776Y Permanent-magnet overlap-type scroll compressor |
| 06/03/2009 | CN100494686C Rotary fluid machine |
| 06/03/2009 | CN100494639C Fluid machine |
| 05/28/2009 | WO2009066416A1 Compressor integral with expander |
| 05/28/2009 | WO2009066413A1 Compressor integral with expander |
| 05/28/2009 | WO2009066410A1 Compressor integral with expander |
| 05/28/2009 | WO2008152055A9 Orbiting-spiral scroll pump or compressor |
| 05/27/2009 | EP1366293B1 Compressor system |
| 05/27/2009 | CN100491733C Full cover type air compressor device for mining |
| 05/26/2009 | US7537440 Scroll compressor with multiple isolated inlet ports |
| 05/22/2009 | WO2009064042A1 2 stage rotary compressor |
| 05/22/2009 | WO2009063890A1 Multi-stage dry pump |
| 05/22/2009 | WO2009062583A1 Two-stage air compressor |
| 05/22/2009 | WO2009062366A1 A discharge valve device of a rotary compressor |
| 05/22/2009 | WO2009062365A1 A suction device for capacity-controlled rotary compressor |
| 05/22/2009 | WO2009044197A3 A multi stage, clam shell vacuum pump |
| 05/22/2009 | WO2009024698A3 Refrigeration compressor with variable speed spirals |
| 05/20/2009 | EP2060739A1 Multi-stage rotary fluid machine and refrigeration cycle device |
| 05/20/2009 | EP2059680A2 Two stage pressure regulation system for variable displacement hydraulic pumps |
| 05/19/2009 | US7534100 Rotary fluid machine |
| 05/19/2009 | CA2516391C Scroll compressor with bifurcated flow pattern |
| 05/19/2009 | CA2418324C Hybrid compressor |
| 05/14/2009 | WO2009061039A1 2 stage rotary compressor |
| 05/14/2009 | WO2009061038A1 2 stage rotary compressor |
| 05/13/2009 | EP2058520A1 Backup vacuum-production installation and corresponding vacuum-production system. |
| 05/13/2009 | CN100487250C Rotary fluid machine |
| 05/13/2009 | CN100487249C Tempering method for a screw-type vacuum pump |
| 05/12/2009 | US7530798 Multistage compressor for compressing gases |
| 05/06/2009 | EP2055956A1 Multistage compressor |
| 05/06/2009 | EP2055955A1 Scroll compressor |
| 05/06/2009 | EP2055892A1 Expander-integrated compressor and refrigeration cycle device with the same |
| 05/06/2009 | CN201231306Y Vacuum melting die-casting device |
| 05/06/2009 | CN201231305Y Vacuum melting die-casting device |
| 05/06/2009 | CN101425727A Method of fixing a stator core and an electric compressor |
| 04/29/2009 | EP2053247A1 Multistage compressor |
| 04/29/2009 | EP2052156A1 Multi-stage compressor |
| 04/29/2009 | CN100482945C Check valve of scroll compressor |
| 04/23/2009 | WO2009050126A1 Scroll device for compression or expansion |
| 04/23/2009 | US20090104062 Compressor |
| 04/23/2009 | US20090104060 Compressor |
| 04/22/2009 | EP2050966A2 Compressor |
| 04/22/2009 | EP2050965A2 Compressor |
| 04/22/2009 | CN201225287Y Tandem type single screw compressor |
| 04/22/2009 | CN100480606C Heat exchanger, method of manufacturing the same and plate-shaped fin for the heat exchanger |
| 04/21/2009 | US7520733 Multistage compression type rotary compressor |
| 04/15/2009 | EP2048364A2 Plural compressors with capacity control |
| 04/15/2009 | EP2048363A2 Scroll compressor with scroll deflection compensation |
| 04/15/2009 | EP1491768B1 Compressor |
| 04/09/2009 | WO2009044197A2 A multi stage, clam shell vacuum pump |
| 04/09/2009 | CA2698452A1 A multi stage, clam shell vacuum pump |
| 04/09/2009 | CA2640539A1 Rotor attachment for compressor |
| 04/08/2009 | CN101403520A Cold-supplying energy-saving apparatus and steam pump used by the same |
| 04/08/2009 | CN100476206C Cooling device for air compressor |
| 04/02/2009 | WO2009041056A1 Rotary fluid machine |
| 04/02/2009 | WO2009040412A1 Vacuum pump with two helical rotors |
| 04/02/2009 | US20090087321 Two-stage compression rotary compressor |
| 04/01/2009 | EP2042742A1 Fluid machine |