| 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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| 08/13/2013 | US8506269 Low noise type balance shaft module |
| 08/08/2013 | US20130202463 Motor-driven compressor |
| 08/07/2013 | EP2623790A1 Positive displacement compressor |
| 08/07/2013 | EP2622224A1 Variable capacity compressor with line-start brushless permanent magnet motor |
| 08/07/2013 | EP2622222A1 Electrical connector for an electric compressor |
| 08/07/2013 | CN203114632U Compressor |
| 08/07/2013 | CN203114631U Integrated motor-driven compressor device and shell thereof and vehicle |
| 08/07/2013 | CN203114630U Gear type air compressor |
| 08/07/2013 | CN203114629U Double-stage enthalpy-adding compressor and air conditioner provided with same |
| 08/07/2013 | CN203114628U Rotor type compressor |
| 07/31/2013 | EP2620648A2 Motor-driven compressor and method for manufacturing the same |
| 07/31/2013 | CN203104159U Rotor and motor and compressor having same |
| 07/31/2013 | CN203098283U Multistage variable-capacity assembly and multistage variable-capacity duplex cylinder compressor |
| 07/31/2013 | CN103228921A Vacuum exhaust device coupling structure and vacuum exhaust system |
| 07/30/2013 | US8496457 Metering gear pump with integral flow indicator |
| 07/25/2013 | DE102012001075A1 Controllable vane compressor e.g. single-vane compressor, for compressing fluid in cooling system in electric car, has rotor within housing wall connected with shaft, where fluid in pressure area is displaced into pressure output via groove |
| 07/24/2013 | CN203081766U Compressor, pump body assembly and high-pressure cylinder thereof |
| 07/24/2013 | CN203081761U Portable sliding sheet type air compressor driven by internal combustion engine |
| 07/24/2013 | CN203081760U Sliding-vane-type air compressor driven by hydraulic motor for tool cars |
| 07/24/2013 | CN203081759U Compressed air system for geological prospecting self-propelled drilling machine |
| 07/24/2013 | CN203081758U Two-stage rotor compressor |
| 07/24/2013 | CN203081757U Compressor and heat pump system with same |
| 07/24/2013 | CN103216448A Motor-driven compressor and method for manufacturing the same |
| 07/24/2013 | CN101124410B Ejector pump |
| 07/18/2013 | WO2012127198A3 Vacuum pump with longitudial and annular seals |
| 07/17/2013 | CN203067287U Refrigeration compressor |
| 07/17/2013 | CN203067286U Screw type compressor |
| 07/17/2013 | CN203067285U High-vacuum multi-stage roots pump |
| 07/17/2013 | CN203067080U Air supplying system and supercharger assembly |
| 07/17/2013 | CN103206378A Multistage heat pump compressor |
| 07/17/2013 | CN101952596B Scroll compressor |
| 07/17/2013 | CN101539146B Capacity variable rotary compressor and air-conditioning circulatory system |
| 07/10/2013 | EP2613053A2 Rotary compressor with dual eccentric portion |
| 07/10/2013 | CN203051131U Novel multifunctional compressor |
| 07/10/2013 | CN203051130U Twin translational air compressor |
| 07/10/2013 | CN203051129U Improved multi-stage compressor |
| 07/10/2013 | CN203051128U Variable-frequency double-screw two-stage supercharging air compressor |
| 07/10/2013 | CN203051127U Combined type multi-level multi-cylinder air compressor |
| 07/10/2013 | CN203051123U Double-screw two-stage turbocharging air compressor |
| 07/10/2013 | CN203051122U Two-stage cooling type double-screw two-stage supercharging air compressor |
| 07/10/2013 | CN203051120U Double-screw two-stage supercharging air compressor with gas storage tank |
| 07/10/2013 | CN203047248U Pure electric vehicle engine and transmission and control system thereof |
| 07/10/2013 | CN103195711A Seal type compressor |
| 07/04/2013 | WO2013098021A1 A compressor comprising a connection member |
| 07/03/2013 | CN203035559U Improved air compressor |
| 07/03/2013 | CN203035558U Improved double-rotor air compressor |
| 07/03/2013 | CN203035557U Dry type vacuum system |
| 07/03/2013 | CN203035556U Screw type air compressor system and screw type air compressor thereof |
| 07/03/2013 | CN203035551U Scroll compressor, air conditioner and automobile |
| 07/03/2013 | CN103189653A Multi-cylinder rotary compressor and refrigeration cycle device |
| 07/03/2013 | CN103189648A A hermetic compressor comprising an oil sucking member |
| 07/02/2013 | US8475140 Dual volume-ratio scroll machine |
| 07/02/2013 | US8475136 Compressor protection and diagnostic system |
| 06/26/2013 | EP2607702A1 Vane compressor |
| 06/26/2013 | EP2607701A1 Vane compressor |
| 06/26/2013 | CN203023056U Air compressor |
| 06/26/2013 | CN203023055U Single-screw two-stage compressor |
| 06/26/2013 | CN103180613A Multi-cylinder rotary compressor and refrigeration cycle device |
| 06/26/2013 | CN103174650A Screw air compressor for driving through utilizing water potential energy |
| 06/20/2013 | WO2013087822A1 Multi-stage vacuum pump device |
| 06/20/2013 | WO2013087713A2 Device and method for evacuating a chamber and purifying the gas extracted from said chamber |
| 06/20/2013 | US20130156607 Compressor protection and diagnostic system |
| 06/20/2013 | DE102011121055A1 Multistage compressor i.e. two-stage compressor, for pneumatic spring system of passenger car, has common electrical drive unit with common drive shaft for driving both compaction stages, and rotor arranged coaxial to drive shaft |
| 06/19/2013 | CN203009298U Refined pumping assembly and refined pumping system with same |
| 06/19/2013 | CN203009297U Electric vacuum pump |
| 06/19/2013 | CN103161730A Multi-cylinder rotary compressor and refrigeration cycle device |
| 06/19/2013 | CN103161729A A rotary compressor and an air conditioner |
| 06/19/2013 | CN103161728A Variable-speed scroll refrigeration compressor |
| 06/19/2013 | CN101965439B Mounting base and scroll compressor incorporating same |
| 06/13/2013 | WO2013084100A1 System, pump and method of vacuum generation for applications to motor vehicles |
| 06/13/2013 | US20130146035 Air supply system with two-stage roots blower |
| 06/12/2013 | EP2602486A1 Hermetically sealed compressor |
| 06/12/2013 | CN202991494U Motor compressor assembly for automobile air conditioner |
| 06/12/2013 | CN103147988A Rotary compressor and assembling method thereof |
| 06/12/2013 | CN103147987A Double-cylinder rotating compressor and eccentric assembling method thereof |
| 06/12/2013 | CN103147986A Twin-stage enthalpy-increasing compressor, and air-conditioner and heat-pump water heater with the twin-stage enthalpy-increasing compressor |
| 06/12/2013 | CN103147985A Rotary compressor |
| 06/12/2013 | CN102072156B Multi-cylinder rotary compressor and manufacture method thereof |
| 06/12/2013 | CN101939546B Fluid machine |
| 06/11/2013 | US8459969 Screw fluid machine |
| 06/05/2013 | CN202971189U Single-stage dish double-acting scroll compressor |
| 06/05/2013 | CN103133349A Birotor compressor, and air conditioner and heat-pump water heater with the birotor compressor |
| 05/30/2013 | WO2012069347A3 Microsystems for compressing or for converting a pressure difference into a displacement |
| 05/29/2013 | EP2597312A1 Vane compressor |
| 05/29/2013 | CN202954971U Double-cylinder varying capacity compressor |
| 05/29/2013 | CN102182688B Two-stage compression compressor |
| 05/29/2013 | CN101815873B A multi stage, clam shell vacuum pump |
| 05/23/2013 | WO2013073183A1 Rotary compressor |
| 05/23/2013 | WO2013073182A1 Rotary compressor |
| 05/23/2013 | US20130129548 Two-stage medium-pressure screw-type air compressor set |
| 05/22/2013 | EP2594737A2 Rotary Compressor and Manufacturing Method Thereof |
| 05/22/2013 | CN202947373U Screw rod expansion vortex type compressor |
| 05/22/2013 | CN202946384U Secondary compression screw rod air compressor |
| 05/22/2013 | CN202946383U Low-pressure screw type air compressor |
| 05/22/2013 | CN202946382U Centrifugal-fan-type screw air compressor |
| 05/22/2013 | CN202946381U Compressor and refrigerating system provided with same |
| 05/16/2013 | WO2013069275A1 Compressor |
| 05/15/2013 | EP2592278A1 Rotary compressor and refrigeration cycle device |
| 05/15/2013 | EP2592277A1 Rotary compressor and refrigeration cycle device |
| 05/15/2013 | CN202937449U Anti-freezing conveyer device of paint material |