| 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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| 01/30/2014 | WO2013114093A3 Multi-stage pump with transverse wall |
| 01/29/2014 | EP2690287A1 Scroll-type compressor |
| 01/29/2014 | EP2689137A2 Scroll compressor |
| 01/29/2014 | EP2689105A2 Vacuum pump with longitudial and annular seals |
| 01/29/2014 | CN203412762U Rotary vane type automobile electric supercharger |
| 01/29/2014 | CN103541902A Rotary type compressor with low-back-pressure shell |
| 01/29/2014 | CN102086869B 回转压缩机 Rotary Compressor |
| 01/28/2014 | US8636487 Dual stage pump having intermittent mid-shift load supports |
| 01/23/2014 | WO2014012896A2 Method and device for pumping of a process chamber |
| 01/22/2014 | EP2687726A1 Compressor |
| 01/22/2014 | CN203404084U Rotation compressor |
| 01/22/2014 | CN203404083U Vertical rotary compressor |
| 01/22/2014 | CN103532308A Half-seal screw compressor of refrigerating fluid liquid-cooling motor |
| 01/22/2014 | CN101981320B 低压泵 Low-pressure pump |
| 01/16/2014 | WO2014010199A1 Rotary compressor |
| 01/16/2014 | US20140017104 Scroll expander |
| 01/15/2014 | EP2685106A2 Two-stage compressor and two-stage compression system |
| 01/15/2014 | CN203398927U Oil-cooled screw air compressor coaxial with motor |
| 01/15/2014 | CN203394458U Integral well group supercharging integrated device |
| 01/15/2014 | CN103518066A Refrigeration cycle device |
| 01/15/2014 | CN103511281A Motor-driven compressor |
| 01/15/2014 | CN103511275A Low backpressure rotary compressor |
| 01/15/2014 | CN103511270A Vertical rotary compressor |
| 01/15/2014 | CN103511269A Airtight motor compressor |
| 01/15/2014 | CN103511268A Tandem blade compressor |
| 01/15/2014 | CN103511267A Cascaded blade compressor |
| 01/15/2014 | CN103511266A 旋转式压缩机 Rotary compressor |
| 01/15/2014 | CN103511262A Rotary compressor, double-cylinder rotary compressor and refrigeration circulating plant |
| 01/15/2014 | CN103511255A Serial vane compressor |
| 01/15/2014 | CN103511254A Serial vane compressor |
| 01/15/2014 | CN103511253A Rotary compressor and multiple-cylinder rotary compressor |
| 01/15/2014 | CN103507806A Engine of full electric vehicle and drive and control system thereof |
| 01/09/2014 | DE102013010886A1 Vielsegment-Drehkolbenpumpe Much segment rotary pump |
| 01/08/2014 | CN203384051U Two-stage compression single-screw air compressor |
| 01/08/2014 | CN203384050U Two-stage sliding-vane rotary vacuum pump with side-placed oil tank |
| 01/08/2014 | CN103502648A 真空泵 Vacuum pump |
| 01/03/2014 | WO2014003060A1 Rotary compressor |
| 01/03/2014 | WO2014002457A1 Rotary compressor |
| 01/03/2014 | WO2014002456A1 Rotary compressor |
| 01/03/2014 | WO2014001090A1 Method and pump arrangement for evacuating a chamber |
| 01/01/2014 | EP2679821A1 Motor-driven compressor |
| 01/01/2014 | EP2678566A1 Device for lubricating a secondary bearing in an electric compressor |
| 01/01/2014 | CN203377754U Motor, compressor having the motor and refrigeration cycle apparatus having the compressor |
| 01/01/2014 | CN203374481U Vacuum pump for recovering oil and gas |
| 01/01/2014 | CN103486040A 旋转式压缩机 Rotary compressor |
| 01/01/2014 | CN103486033A Roots blower provided with portable motor position adjusting devices |
| 01/01/2014 | CN103486032A 双级变容量压缩机及空调器 Two-stage variable displacement compressor and air conditioner |
| 01/01/2014 | CN103486031A Rotary double-cylinder compressor pump body assembling method |
| 12/27/2013 | WO2013087713A3 Device and method for evacuating a chamber and purifying the gas extracted from said chamber |
| 12/25/2013 | CN203362520U Atmospheric drainage system with double-screw vacuum power machine body discharging steam laterally |
| 12/25/2013 | CN103477080A 真空泵 Vacuum pump |
| 12/25/2013 | CN103477076A Scroll refrigeration compressor |
| 12/25/2013 | CN103470506A Oil free air compressor |
| 12/25/2013 | CN101839241B Two-stage rolling rotor compressor |
| 12/19/2013 | WO2013023954A3 Roots pump |
| 12/19/2013 | US20130336828 Roots pump and exhaust method |
| 12/18/2013 | EP2674571A2 Pump power unit with liquid-ring pump |
| 12/18/2013 | CN203348083U Rotary compressor, double-cylinder rotary compressor and refrigeration circulating device |
| 12/18/2013 | CN203346365U Explosion-proof type double-screw methane compressor |
| 12/18/2013 | CN103459849A 涡旋压缩装置 Scroll compression device |
| 12/18/2013 | CN103452847A Rotary compressor and freezing circulating device with same |
| 12/18/2013 | CN103452846A Plug rod compressor |
| 12/18/2013 | CN103452845A Rotary compressor |
| 12/18/2013 | CN103452844A Rotary compressor |
| 12/18/2013 | CN103452843A Fixing assembly for rotation type dual-cylinder compressor pump body, fixing method and compressor |
| 12/12/2013 | US20130330217 Motor-driven compressor |
| 12/11/2013 | EP2672117A1 Motor-driven compressor |
| 12/11/2013 | EP2670639A1 Double internal gear wheel pump |
| 12/11/2013 | CN203335401U Double-stage enthalpy-added rotor compressor, and air conditioner and heat-pump water heater with same |
| 12/11/2013 | CN103443400A Vacuum pump with longitudinal and annular seals |
| 12/11/2013 | CN103438001A Rotary compressor and refrigeration circulating device provided with rotary compressor |
| 12/05/2013 | WO2013042141A8 Bladed expander |
| 12/04/2013 | CN203321825U Novel gear pump |
| 12/04/2013 | CN103423165A Vertical type totally closed double-stage screw rod refrigerating compressor |
| 12/04/2013 | CN103423164A Two-stage variable capacity compressor and control method therefor |
| 12/04/2013 | CN103423158A Disc air compressor |
| 12/04/2013 | CN102192150B Two-stage compressor and heat pump device |
| 12/03/2013 | DE202013104111U1 Trockenlaufender Vakuumpumpstand Dry-running vacuum pump |
| 11/28/2013 | DE10213252B4 Elektrisch angetriebene Kompressoren und Verfahren zum Umlaufenlassen von Schmieröl durch diese Kompressoren Electrically driven compressors and method for circulating lubricating oil through these compressors |
| 11/27/2013 | DE202012008133U1 Vakuumpumpe Vacuum pump |
| 11/27/2013 | CN203308713U Integrated compact mining intelligent frequency conversion screw air compressor |
| 11/27/2013 | CN103410734A 旋转压缩机 Rotary compressor |
| 11/27/2013 | CN103410733A Two-stage screw refrigeration compressor capable of adjusting gas transporting volume simultaneously at high and low pressure |
| 11/27/2013 | CN103410729A Horizontal fully-closed two-stage screw refrigeration compressor |
| 11/20/2013 | CN203297100U Dust collection power device for industrial vacuum sweeper |
| 11/20/2013 | CN203297099U Split type two-stage medium-pressure air compressor unit |
| 11/20/2013 | CN203297098U Novel multi-stage air compressor |
| 11/20/2013 | CN103403354A Methods and systems for maintaining a high vacuum in a vacuum enclosure |
| 11/20/2013 | CN103401353A Oil-cooled screw air compressor coaxial with motor |
| 11/14/2013 | WO2012175348A3 Vane pump |
| 11/14/2013 | DE102012220608B3 Pumping device for diagnostic device, has multiple pumps formed as vane pumps, where suction pump and pressure pump are arranged in pumping module, and one of vane pumps is driven by drive motor, where bearing is press fitted on drive shaft |
| 11/14/2013 | DE102012009416A1 Vacuum pumping device for evacuating vacuum container storing large substrates, has a vacuum container for transferring substrates into adjacent containers of plant and for removing substrates from adjacent containers of plant |
| 11/13/2013 | CN203285687U Compressor and air conditioner with same |
| 11/12/2013 | US8579596 Ejector pump |
| 11/07/2013 | WO2013165485A1 Dual pump and motor with control device |
| 11/06/2013 | EP2659145A1 Compressor |
| 11/06/2013 | EP2659144A1 Hermetic compressor and manufacturing method thereof |
| 11/06/2013 | EP2659143A1 Compressor |
| 11/06/2013 | CN203272138U Vortex pressurized screw compressor |
| 11/06/2013 | CN203272137U 旋转式压缩机 Rotary compressor |