| 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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| 04/06/2011 | CN101235815B Multistage compressor |
| 03/31/2011 | WO2011037012A1 Air conditioner |
| 03/30/2011 | EP1486676B1 Scroll compressor |
| 03/30/2011 | CN101158353B Composite dry vacuum pump having roots and screw rotor |
| 03/24/2011 | WO2011034164A1 Multi-cylinder rotary compressor and refrigeration cycle device |
| 03/24/2011 | WO2011033710A1 Multistage compressor |
| 03/23/2011 | EP2299118A2 Motor-driven compressor |
| 03/23/2011 | EP1918510B1 Fluid machine and refrigeration cycle device |
| 03/23/2011 | CN201771767U 旋转式压缩机 Rotary compressor |
| 03/23/2011 | CN201771766U 旋转压缩机 Rotary compressor |
| 03/23/2011 | CN101387298B Double cylinders rotary compressor and freezing cycle device using the same |
| 03/17/2011 | WO2011030809A1 Multiple cylinder rotary compressor and refrigeration cycle device |
| 03/16/2011 | EP2295807A2 Rotary compressor |
| 03/16/2011 | EP2295720A1 Two-stage rotary expander, expander-integrated compressor, and refrigeration cycle device |
| 03/10/2011 | US20110058970 Rotary compressor and method |
| 03/09/2011 | EP2292931A2 Hermetic type compressor |
| 03/09/2011 | EP1846661B1 Ejector pump |
| 03/09/2011 | CN101403520B 蒸汽泵 Steam Pump |
| 03/01/2011 | US7896627 Rotary type expander and fluid machinery |
| 02/24/2011 | DE10341104B4 Spiralkompressor Scroll compressor |
| 02/23/2011 | CN101981320A 低压泵 Low-pressure pump |
| 02/17/2011 | WO2011019048A1 Dry pump |
| 02/17/2011 | WO2011018370A2 Vacuum pump system |
| 02/16/2011 | EP2284463A2 Digital controller for scroll compressor condensing unit |
| 02/16/2011 | CN101978226A Refrigeration apparatus |
| 02/16/2011 | CN101975167A Compressor control system |
| 02/10/2011 | WO2011016354A1 Exhaust heat regeneration system |
| 02/09/2011 | EP2282061A1 Rotor assembly |
| 02/02/2011 | CN101965439A Mounting base and scroll compressor incorporating same |
| 02/02/2011 | CN101965438A Scroll compressor build assembly |
| 02/01/2011 | US7878771 Hermetic type compressor with wave-suppressing member in the oil reservoir |
| 01/27/2011 | WO2011011434A2 Gaseous fluid pump |
| 01/26/2011 | CN201723445U Compressor capable of single-stage and double-stage switching |
| 01/26/2011 | CN201723444U Rotary compressor |
| 01/26/2011 | CN101956570A Novel volumetric transfiguration machine |
| 01/20/2011 | WO2010117214A3 Rotary-type 2-stage compressor |
| 01/19/2011 | CN201714667U Two-stage compressor and pump partition plate thereof |
| 01/19/2011 | CN101952596A Scroll compressor suction flow path & bearing arrangement features |
| 01/19/2011 | CN101952553A Scroll compressor with housing shell location |
| 01/18/2011 | US7871252 Rotary compressor having two compression capacities |
| 01/12/2011 | EP2273121A2 Container assembly for a volumetric pump |
| 01/12/2011 | EP2174012B1 Refrigeration compressor with variable speed spirals |
| 01/12/2011 | CN101943163A Two-stage medium-pressure screw-type air compressor set |
| 01/12/2011 | CN101395344B Fluid machine |
| 01/11/2011 | US7866962 Two-stage rotary compressor |
| 01/06/2011 | WO2011001100A2 Multi-stage scroll machine |
| 01/05/2011 | EP1690007B1 Two stage scroll vacuum pump |
| 01/05/2011 | CN101939548A Compressor and freezer |
| 01/05/2011 | CN101939546A Fluid machine |
| 12/29/2010 | WO2010148986A1 Method for assembling pump body of two-cylinder rotary compressor |
| 12/29/2010 | EP2267310A1 Compressor |
| 12/29/2010 | CN101163861B Scroll expander |
| 12/23/2010 | WO2010125368A3 Vacuum pump |
| 12/22/2010 | CN101925744A Rotary fluid machine |
| 12/21/2010 | US7854601 Lubricant-tight vane rotary vacuum pump |
| 12/16/2010 | WO2010143523A1 Refrigerant compressor and heat pump device |
| 12/16/2010 | WO2010143522A1 Refrigerant compressor and heat pump device |
| 12/16/2010 | WO2010143521A1 Refrigerant compressor and heat pump device |
| 12/15/2010 | EP2261579A1 Freezing device |
| 12/08/2010 | CN201666252U Movable screw compressor |
| 12/08/2010 | CN101910563A Expander-integrated compressor and refrigeration cycle device using the same |
| 12/02/2010 | WO2010136472A2 Microsystems for converting pressures and compression |
| 12/02/2010 | WO2010136470A2 Wheel |
| 12/02/2010 | US20100303658 Water-Cooled Oil-Free Air Compressor |
| 12/01/2010 | EP2256346A2 Two-stage rotary type compressor with filter |
| 12/01/2010 | CN201661464U Two-stage rotor type compressor provided with by-path structure |
| 12/01/2010 | CN101903659A Screw compressor |
| 11/30/2010 | US7841838 Rotary closed type compressor and refrigerating cycle apparatus |
| 11/25/2010 | US20100293993 Method and Apparatus for Highly Efficient Compact Vapor Compression Cooling |
| 11/24/2010 | EP2253849A1 Hermetic compressor |
| 11/24/2010 | CN101896724A Integrated electric compressor |
| 11/23/2010 | USRE41955 Capacity modulation for plural compressors |
| 11/23/2010 | US7837449 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigerant unit |
| 11/18/2010 | WO2010131328A1 Two-stage compressor and refrigeration air-conditioner |
| 11/18/2010 | WO2010085593A3 Scroll compressors with different volume indexes and systems and methods for same |
| 11/17/2010 | EP2251546A1 Compressor and freezer |
| 11/17/2010 | EP1434896B1 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor |
| 11/17/2010 | CN201636194U Eccentric crankshaft and rotary compressor using the same |
| 11/17/2010 | CN201636008U Roots pump with dual-rotor group |
| 11/17/2010 | CN101571129B Two-stage scroll compressor |
| 11/11/2010 | WO2010016685A3 Rotary compressor |
| 11/11/2010 | WO2010016684A3 Rotary compressor |
| 11/11/2010 | US20100284847 2 stage rotary compressor |
| 11/10/2010 | CN1821576B Rotary compressor |
| 11/10/2010 | CN1793663B Rotary two-stage compressor |
| 11/04/2010 | US20100278675 2 stage rotary compressor |
| 11/04/2010 | US20100278674 2 stage rotary compressor |
| 11/04/2010 | US20100275638 Fluid machine |
| 11/03/2010 | EP2246570A1 Fluid machine |
| 11/03/2010 | EP2245309A1 Scroll compressor suction flow path&bearing arrangement features |
| 11/03/2010 | CN101878401A Freezing apparatus |
| 10/28/2010 | WO2010122812A1 Refrigeration cycle device |
| 10/28/2010 | US20100269536 Expander-compressor unit |
| 10/27/2010 | EP2243960A2 International Intermediate pressure multistage compression type rotary compressor, manufacturing method thereof and displacement ratio setting method |
| 10/27/2010 | EP2242907A1 Scroll compressor build assembly |
| 10/27/2010 | EP2242906A1 Scroll compressor with housing shell location |
| 10/27/2010 | EP2242905A1 Mounting base and scroll compressor incorporating same |
| 10/21/2010 | US20100266433 Multi-stage dry pump |
| 10/20/2010 | EP2241758A2 Multistage rotary compressor and refrigeration circuit system |
| 10/20/2010 | EP2241719A1 Expander-integrated compressor and refrigeration cycle device using the same |