| 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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| 11/06/2013 | CN203272136U Single-cylinder multi-stage compressor |
| 11/06/2013 | CN103384770A Device for lubricating a secondary bearing in an electric compressor |
| 10/31/2013 | US20130287592 Compressed gas supply unit |
| 10/30/2013 | CN203257681U Minicar air-conditioning compressor |
| 10/30/2013 | CN203257680U Two-stage enthalpy increase rotation compressor |
| 10/30/2013 | CN103375406A 压缩气体供给单元 Compressed gas supply means |
| 10/30/2013 | CN103375405A Compressor as well as air conditioning system and heat-pump water heater with same |
| 10/30/2013 | CN102684396B Oil-cooled motor for compressor and variable frequency oil-injection screw air compressor employing same |
| 10/30/2013 | CN101328889B Scroll machine with continuous capacity modulation |
| 10/23/2013 | CN203248363U Double-die compression pump body and double-cylinder compressor using same |
| 10/23/2013 | CN103362819A Compressor with temperature protecting device |
| 10/23/2013 | CN103362817A 压缩机 Compressor |
| 10/23/2013 | CN103362815A Motor-driven compressor |
| 10/23/2013 | CN103362814A Inverter-integrated electric compressor |
| 10/23/2013 | CN103362813A Two-stage compression single-screw air compressor and work method thereof |
| 10/23/2013 | CN103362812A Cascaded vane compressor |
| 10/23/2013 | CN103362811A Serial vane compressor |
| 10/23/2013 | CN103362810A Cascaded vane compressor |
| 10/23/2013 | CN103362809A Cascading blade compressor |
| 10/23/2013 | CN103362808A 旋转式压缩机 Rotary compressor |
| 10/23/2013 | CN103362807A Compressor, air conditioning system with same and heat-pump water heater system |
| 10/23/2013 | CN101051770B Methods and apparatus for using electrical machine to transport fluids through pipeline |
| 10/17/2013 | WO2013153970A1 Two-stage oil-cooled compressor device |
| 10/17/2013 | WO2013152599A1 Compressor, air conditioner system comprising the compressor and heat pump water heater system |
| 10/16/2013 | CN103352850A Vacuum compression integrated machine for electric automobile |
| 10/16/2013 | CN102338514B Rotary type compressor and gas-liquid separator thereof |
| 10/10/2013 | WO2013016791A3 Pumping system and shaft for oil pumping system for hermetic compressors and compressor comprising the system and/or shaft |
| 10/09/2013 | EP2646692A1 Methods and systems for maintaining a high vacuum in a vacuum enclosure |
| 10/09/2013 | CN203230588U Rotor, and motor and compressor with same |
| 10/09/2013 | CN203230584U Rotary type direct-current compressor |
| 10/09/2013 | CN203230583U 旋转式压缩机 Rotary compressor |
| 10/03/2013 | WO2013146674A1 Two-stage compression device |
| 10/03/2013 | WO2012080610A3 Scroll refrigeration compressor |
| 10/02/2013 | EP2644894A2 Rotary compressor |
| 10/02/2013 | EP2644893A2 Vacuum evacuation apparatus |
| 10/02/2013 | EP2643593A2 Microsystems for compressing or for converting a pressure difference into a displacement |
| 10/02/2013 | CN203223380U Mechanical vapor compression device |
| 10/02/2013 | CN203223379U Twin-stage rotor pump |
| 10/02/2013 | CN103338989A Double internal gear wheel pump |
| 10/02/2013 | CN103334928A Novel energy-saving swinging piston compressor |
| 09/26/2013 | WO2013140912A1 Rotating compressor and freeze-cycle apparatus |
| 09/26/2013 | US20130251569 Crankshaft With Aligned Drive and Counterweight Locating Features |
| 09/26/2013 | US20130251563 Press-fit bearing housing with non-cylindrical diameter |
| 09/26/2013 | US20130251562 Suction duct with stabilizing ribs |
| 09/26/2013 | US20130251544 Suction duct with adjustable diametric fit |
| 09/26/2013 | US20130251543 Compressor with Oil Return Passage Formed Between Motor and Shell |
| 09/26/2013 | DE102010009083B4 Vakuumpumpe Vacuum pump |
| 09/25/2013 | EP2642127A1 Vacuum pump with pump rotor bearings on a single side |
| 09/25/2013 | EP2642072A2 Motor-driven compressor with vibration dampening mounting means |
| 09/25/2013 | EP2642071A1 Screw expansion power generation device |
| 09/25/2013 | CN203214333U Diesel-driven mobile air compressor |
| 09/25/2013 | CN203214332U Gearless claw type pump |
| 09/25/2013 | CN203214331U Double-grade enthalpy-rise rotary compressor, air conditioner and heat-pump water heater |
| 09/25/2013 | CN203214330U Direct-exhaustion claw type pump |
| 09/25/2013 | CN203214329U Double-stage compressor |
| 09/25/2013 | CN203214328U Double-cylinder variable capacity compressor |
| 09/25/2013 | CN103321910A Intercooler unit and cooling method of two stages of screw compressors |
| 09/25/2013 | CN103321908A Motor-driven compressor |
| 09/25/2013 | CN101842596B 2 stage rotary compressor |
| 09/18/2013 | EP2638290A1 A hermetic compressor comprising an oil sucking member |
| 09/18/2013 | CN203201799U Double-stage compressor |
| 09/18/2013 | CN103306978A Swinging piston compressor |
| 09/18/2013 | CN103306977A Compressor unit of grade two and compressor system using the same |
| 09/18/2013 | CN103306976A Rotating compressor with multiple air cylinders |
| 09/18/2013 | CN101956570B Novel volumetric transfiguration machine |
| 09/12/2013 | WO2013133993A1 Compressor and controller with altitude compensation |
| 09/12/2013 | WO2013133550A1 Horizontal type scroll compressor |
| 09/12/2013 | WO2013131911A1 Improved pumping unit and method for controlling such a pumping unit |
| 09/12/2013 | DE112011104373T5 Scroll-Kälteverdichter Scroll refrigeration compressor |
| 09/12/2013 | DE112011104357T5 Thermodynamisches System, das mir einer Vielzahl von Verdichtern ausgestattet ist Thermodynamic system, which is equipped me a plurality of compressors, |
| 09/11/2013 | EP2636902A1 Scroll compressor |
| 09/11/2013 | CN103291620A Multi-air-cylinder rotary compressor as well as control method thereof |
| 09/06/2013 | WO2013126969A1 Compressor device, as well as the use of such an assembly |
| 09/05/2013 | DE112011103800T5 Koppelstruktur für eine Unterdruckabsaugeinrichtung und Unterdruckabsauganordnung Coupling structure for a Unterdruckabsaugeinrichtung and Unterdruckabsauganordnung |
| 09/04/2013 | CN203175860U Sealed compressor and refrigeration cycle device with same |
| 09/04/2013 | CN103277311A Split type two-stage medium-pressure air compressor unit |
| 09/04/2013 | CN103277310A Energy-efficient spiral slice type vacuum pump unit |
| 09/04/2013 | CN103275778A Explosion-proof type double-screw methane compressor |
| 08/29/2013 | US20130219952 Hermetically sealed rotary compressor and refrigeration cycle device |
| 08/28/2013 | EP2631426A1 Scroll compressor |
| 08/28/2013 | CN203161535U Compressor system |
| 08/28/2013 | CN203161534U Dual-rotor two-stage enthalpy increasing compressor |
| 08/28/2013 | CN102251965B Compressor capable of performing one-stage and double-stage switching, and control method thereof |
| 08/22/2013 | WO2013122363A1 Twin rotary compressor and heat pump having the same |
| 08/21/2013 | CN203146338U Sealed compressor |
| 08/21/2013 | CN203146332U Shielding screw rod type refrigeration compressor |
| 08/21/2013 | CN203146331U Novel rotary compressor |
| 08/21/2013 | CN203146329U Direct-current electron vacuum pump of automobile braking system |
| 08/21/2013 | CN103261690A Thermodynamic system provided with a plurality of compressors |
| 08/21/2013 | CN103259379A Motor and manufacture method thereof, compressor with same, and refrigerating circulation device with compressor |
| 08/21/2013 | CN103256223A Variable volume compressor and control method thereof, air conditioner having variable volume compressor, and heat pump water heater having variable volume compressor |
| 08/21/2013 | CN103256115A Air supply system with two-stage roots blower |
| 08/14/2013 | EP2626562A2 Pump |
| 08/14/2013 | DE10251219B4 Motorbetriebener Kompressor The motor-driven compressor |
| 08/14/2013 | CN203130517U Full-closed-operating miniature rolling rotor refrigeration compressor |
| 08/14/2013 | CN203130506U Compressor |
| 08/14/2013 | CN203130505U Two-stage double-rotor enthalpy increasing compressor as well as air conditioner and heat-pump water heater with same |
| 08/14/2013 | CN103244414A Motor-driven compressor and hermetic sealing inspection method for the same |
| 08/14/2013 | CN103244413A Rotary compressor |
| 08/14/2013 | CN103244412A Double-rotor variable-volume compressor |