Patents for F04C 19 - Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids (784)
04/2012
04/11/2012EP2439412A2 Liquid ring compressors for subsea compression of wet gases
03/2012
03/29/2012US20120076671 Method of converting liquid ring pumps having sealing liquid vents
02/2012
02/09/2012WO2012016603A1 Method and installation for filling containers with liquid contents
01/2012
01/25/2012CN102333958A Liquid ring vacuum pump for degassing plastic melts
01/05/2012DE102010026047A1 Vehicle e.g. passenger car, has vacuum pump i.e. liquid ring pump, for producing low pressure during operation of device by suction of pure gaseous medium i.e. air, where liquid ring pump is driven by electromotor
01/04/2012EP2401504A2 Liquid ring vacuum pump
01/04/2012CN102308096A Liquid ring pump with liner
12/2011
12/29/2011WO2011090335A3 Fluid pump and fluid-pumping method for same
12/14/2011EP2394060A1 Liquid ring pump with liner
11/2011
11/23/2011CN102257277A Liquid ring pump with gas scavenge device
11/23/2011CN101490423B Systems and methods for managing fluids using a liquid ring pump
10/2011
10/26/2011EP2379684A2 Mixtures of hydrophobic and hydrophilic ionic liquids and use thereof in liquid ring compressors
10/20/2011WO2011128502A2 Liquid ring pump and method for operating a liquid ring pump
10/20/2011CA2796169A1 Liquid ring pump and method for operating a liquid ring pump
10/12/2011EP2373892A1 Liquid ring pump with gas scavenge device
10/06/2011US20110243758 Liquid ring pump with gas scavenge device
08/2011
08/18/2011WO2011100346A2 Efficiency improvements for liquid ring pumps
08/11/2011US20110194950 Efficiency improvements for liquid ring pumps
07/2011
07/28/2011WO2011090335A2 Fluid pump and fluid-pumping method for same
07/13/2011CN101023270B Method for operating a liquid ring compressor
06/2011
06/15/2011CN201865917U Water circulation device of water-ring vacuum pump
06/08/2011CN102086871A Cooling device
06/08/2011CN102086868A Chlorine-hydrogen compressor
06/03/2011WO2010072696A9 Mixtures of hydrophobic and hydrophilic ionic liquids and use thereof in liquid ring compressors
06/02/2011US20110129355 Method for Controlling the Vacuum Generator(s) in a Vacuum Sewage System
06/01/2011CN102080658A 封闭式滚动转子压缩机 Hermetic scroll compressor rotor
05/2011
05/24/2011US7946828 Screw type liquid ring pump with shaft seal arrangement
05/04/2011CN102046252A 液体蒸发器 Liquid Evaporator
04/2011
04/28/2011WO2010097233A3 Liquid ring vacuum pump
04/27/2011CN102032186A Vertical swirling liquid-ring vacuum pump
04/20/2011CN101349073B Vacuum collecting and discharging system
04/19/2011US7927080 Method for operating a liquid ring compressor
04/14/2011DE102008009647B4 Schlammreaktorpumpe zur gleichzeitigen Förderung von Feststoffen, Flüssigkeiten, Dampfen und Gasen Sludge reactor pump for simultaneous transport of solids, liquids, vapors and gases
03/2011
03/09/2011EP1846661B1 Ejector pump
02/2011
02/02/2011CN201730826U Axial double-action type liquid-ring vacuum pump
02/01/2011US7878768 Vacuum pump with wear adjustment
01/2011
01/18/2011US7871249 Systems and methods for managing fluids using a liquid ring pump
12/2010
12/30/2010US20100326812 Method and Apparatus for Phase Change Enhancement
12/29/2010WO2010151405A1 Method of converting liquid ring pumps having sealing liquid vents
12/29/2010CA2766385A1 Method of converting liquid ring pumps having sealing liquid vents
12/09/2010WO2010141602A1 Waste water recycling system
11/2010
11/24/2010CN201650734U Compound corrosion-resistant water-ring type vacuum pump
11/17/2010CN201636007U Magnetic force liquid-ring vacuum pump
11/10/2010CN201627720U Vacuum pumping device
10/2010
10/14/2010WO2010072696A3 Mixtures of hydrophobic and hydrophilic ionic liquids and use thereof in liquid ring compressors
10/13/2010CN201606248U 液环真空泵中叶轮和分配器之间的结构 Between the impeller and the distributor of liquid ring vacuum pump
10/07/2010DE102010013438A1 Flüssigkeitsringverdichter mit Verdampfungskühlung Liquid ring compressor with evaporative cooling
10/06/2010CN201599195U 高含水量滤油机液环真空泵给排装置 High moisture to drain liquid ring vacuum pump oil filter device
09/2010
09/29/2010CN101349271B Novel water-ring type vacuum pump
09/22/2010EP2230406A2 Liquid ring gas pump system with a machine foundation made of concrete-like base material
09/22/2010CN201588783U Liquid ring vacuum apparatus with solvent recovery function
09/14/2010US7794211 Pump System with a vacuum source coupled to a separator
09/02/2010WO2010097233A2 Liquid ring vacuum pump for degassing plastic melts
09/02/2010DE102009010702A1 Flüssigkeitsring-Vakuumpumpe Liquid ring vacuum pump
08/2010
08/31/2010US7785448 Method and apparatus for phase change enhancement
08/12/2010WO2010090639A1 Liquid ring pump with liner
08/12/2010CA2750073A1 Liquid ring pump with liner
08/04/2010CN201539405U Coke oven coal gas hydrogen production water ring type vacuum pump device
07/2010
07/01/2010WO2010072696A2 Mixtures of hydrophobic and hydrophilic ionic liquids and use thereof in liquid ring compressors
06/2010
06/30/2010CN101761482A Filling drainage vacuumizing device
06/24/2010WO2010071651A1 Liquid ring pump with gas scavenge device
06/24/2010CA2746949A1 Liquid ring pump with gas scavenge device
06/23/2010CN101749244A Distributing plate of water-ring vacuum pump and processing method thereof
06/23/2010CN101749241A annular compressor
06/16/2010CN101737333A Rotary compressor
06/16/2010CN101737328A rotary compressor
06/16/2010CN101737327A Water-ring vacuum pump
06/09/2010CN101725534A rotary compressor
06/09/2010CN101725532A Vacuumizing device and method
05/2010
05/04/2010US7707830 Pressurized vapor cycle liquid distillation
04/2010
04/21/2010CN101696689A Liquid rotary pump and impeller thereof
03/2010
03/23/2010US7681397 Heat engine
03/11/2010US20100061908 Gs Abatement
03/03/2010CN101658740A Pressurized vapor cycle liquid distillation
02/2010
02/03/2010CN101639072A Rotary compressor
01/2010
01/19/2010US7648344 Liquid ring pump
12/2009
12/23/2009WO2009103256A3 Sludge reactor pump for simultaneously conveying solids, liquids, vapours and gases
12/23/2009CN201368026Y Vacuum plant for charging, filling and discharging
11/2009
11/26/2009US20090290993 Liquid Ring Compressor
11/18/2009CN201347862Y Water circulating system of water-ring vacuum pump
10/2009
10/06/2009US7597784 Purification; intakes, vaporization, accumulation, pumping; rotating housing for compression
09/2009
09/17/2009WO2009112029A1 Liquid evaporator
09/09/2009EP2097647A1 Suction pipe
09/02/2009CN201301810Y 压缩机 Compressor
09/02/2009CN101520048A Single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust
08/2009
08/26/2009CN201297255Y Evacuating device
08/26/2009CN100531841C Pressurized vapor cycle liquid distiller
08/20/2009DE102008009647A1 Schlammreaktorpumpe zur gleichzeitigen Förderung von Feststoffen, Flüssigkeiten, Dampfen und Gasen Sludge reactor pump for simultaneous transport of solids, liquids, vapors and gases
08/19/2009EP2090783A2 Mud reactor pump for simultaneous transport of solid material, liquids, steam and gases
08/12/2009CN201288667Y Rotor sealing apparatus for rotary compressor
07/2009
07/23/2009US20090185918 Fluid Transfer Using Devices with Rotatable Housings
07/22/2009CN101490423A Systems and methods for managing fluids using a liquid ring pump
07/22/2009CN101490422A Systems and methods for managing fluids in a processing environment using a liquid ring pump and reclamation system
07/21/2009US7563075 Liquid ring pump
07/21/2009CA2591490C Oscillating variable displacement ring pump
07/08/2009CN100509115C Device and method for processing discharged air current and a system for pumping vacuum for processing chamber
06/2009
06/10/2009DE202009004418U1 Flüssigkeitsringverdichter mit Verdampfungskühlung Liquid ring compressor with evaporative cooling
06/03/2009EP1553298B1 Oil pump
05/2009
05/27/2009CN101440807A Water circulating system of water-ring vacuum pump
05/20/2009CN201241831Y Novel water-ring type vacuum pump
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