| Patents for F04D 31 - Pumping liquids and elastic fluids at the same time (579) |
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| 07/26/2011 | CA2639428C Gas separator within esp shroud |
| 06/09/2011 | WO2011067665A1 A compressor unit and a method to process a working fluid |
| 06/09/2011 | CA2782860A1 A compressor unit and a method to process a working fluid |
| 05/19/2011 | WO2011058034A1 Intermediate floor for a radial turbine engine |
| 05/11/2011 | CN102052354A High-speed multiphase flow gas-dissolving pump |
| 03/02/2011 | EP2288786A2 Gas compression system |
| 02/09/2011 | CN1831341B Subsea pumping system for hydrocarbon compound fluid, method and subsea pump |
| 01/20/2011 | WO2011008103A1 Subsea drainage system |
| 01/19/2011 | CN201714721U Novel energy-saving blower |
| 01/17/2011 | CA2706266A1 Non-intrusive vapor detector for magnetic drive pump |
| 01/06/2011 | WO2011000821A1 Turbomachine and impeller |
| 12/01/2010 | CN101903661A Pressurizing centrifugal pump |
| 11/10/2010 | CN201627764U High-efficient oxygen enrichment water pump |
| 11/02/2010 | US7823624 Heat exchanger, propulsion unit, and aircraft comprising such a propulsion unit |
| 10/21/2010 | DE202006020834U1 Vorrichtung zum Beseitigen eines Öls von einer Ausgleichswalze Apparatus for removing an oil of a compensating roller |
| 10/12/2010 | US7811065 Vacuum pump for differential pumping multiple chambers |
| 10/12/2010 | US7810572 Method for delivering a multi phase mixture and pump installation |
| 10/06/2010 | EP2029895B1 Compact polyphase pump |
| 09/30/2010 | US20100247291 Gas turbine engine article having columnar microstructure |
| 09/29/2010 | EP2233749A1 Pressurizing centrifugal pump |
| 09/22/2010 | CN1867753B Method for delivering a multi-phase mixture and pump installation |
| 09/15/2010 | CN101398014B Rotating dynamical type multiphase booster pump |
| 08/31/2010 | US7785069 Ventilation unit |
| 07/15/2010 | WO2010080040A1 A device for liquid treatment when compressing a well flow |
| 06/23/2010 | EP2199614A1 Combined pumping and separation machine for the oil circuit of a jet engine |
| 06/10/2010 | US20100143090 Cooling system and method for a turbomachine |
| 06/09/2010 | CN101072933B Axial flow supercharger and fluid compression machine |
| 05/26/2010 | CN101283220B Oxycombustion method in which all of the carbon dioxide produced can be captured |
| 05/18/2010 | US7717667 Method and apparatus for operating gas turbine engines |
| 05/06/2010 | US20100111674 System and Method for Reducing Bucket Tip Losses |
| 04/29/2010 | WO2010046993A1 Volute pump for gas/liquid mixture and microbubble generation device using the same |
| 04/06/2010 | CA2557098C Two phase flow conditioner for pumping gassy well fluid |
| 04/01/2010 | DE102008050895A1 Pumpe für Fluide Pump for fluids |
| 03/31/2010 | CN101688543A Filter device |
| 03/17/2010 | CN101675249A Compressor system for underwater use in the offshore area |
| 03/02/2010 | US7669652 Subsea pumping system |
| 02/24/2010 | CN201412398Y Multi-disc vane pump |
| 02/10/2010 | CN201401374Y Oxygen-increasing water pump |
| 01/13/2010 | EP2142806A1 Compressor system for underwater use in the offshore area |
| 01/07/2010 | WO2009131462A3 Gas compression system |
| 01/07/2010 | US20100003123 Inlet air heating system for a gas turbine engine |
| 01/06/2010 | CN100578019C High performance inducer |
| 12/30/2009 | EP2137414A1 Filter device |
| 12/23/2009 | EP2134971A1 Pump system and method for delivering multi-phase mixtures |
| 12/01/2009 | CA2469468C Method, computer program product and use of a computer program for stabilizing a multiphase flow |
| 11/11/2009 | EP2116727A1 Air separator |
| 10/29/2009 | CA2720678A1 Gas compression system |
| 10/21/2009 | CN201330759Y Rotary power type multiphase booster pump |
| 10/14/2009 | CN201326547Y Internal-spiral constant pressure pump of external spiral body |
| 10/08/2009 | US20090252598 Gas turbine inlet temperature suppression during under frequency events and related method |
| 10/06/2009 | CA2543772C Method for delivering multi-phase mixtures and pump installation |
| 09/23/2009 | EP1553306B1 Mix-in structure for gas or the like in pressurization centrifugal pump |
| 09/16/2009 | CN101532504A Entrance guiding cone used for vertical oil-gas mixing transmission pump |
| 09/15/2009 | CA2395613C Method and system for optimizing the performance of a rotodynamic multi-phase flow booster |
| 09/08/2009 | US7585147 Pressurizing centrifugal pump |
| 08/13/2009 | US20090202337 Methods and apparatus for operating gas turbine engines |
| 08/13/2009 | US20090201975 Degassing centrifugal apparatus with sensor |
| 08/12/2009 | CN201288671Y Dual rotary body internal rotation constant pressure pump |
| 08/12/2009 | CN201288670Y Internal rotation constant pressure pump |
| 07/22/2009 | EP2080974A1 Vapor contact-type heating device |
| 07/02/2009 | WO2009081465A1 Pressurizing centrifugal pump |
| 07/02/2009 | US20090165523 Cooling device for use in metal hot formation |
| 06/17/2009 | CN101457773A Uniaxial paralleling centrifugal pump for simultaneously conveying double mediums |
| 06/10/2009 | CN201255145Y Helical axial flow type oil and gas multiphase flow pump |
| 05/12/2009 | US7530230 Supercharger with electric motor |
| 04/28/2009 | US7524166 Compressor cleaning system |
| 04/08/2009 | CN101403392A Balancing device of down-hole multiphase mixed extraction pump |
| 04/08/2009 | CN101403387A Helical axial flow type multiphase pump supercharging unit |
| 04/01/2009 | CN101398014A Rotating dynamical type multiphase booster pump |
| 03/04/2009 | EP2029895A1 Compact polyphase pump |
| 02/25/2009 | EP1838453A4 Degassing centrifugal apparatus with sensor |
| 02/11/2009 | CN101363691A Transferring molten metal from one structure to another |
| 02/05/2009 | US20090032264 Subsea pumping system |
| 01/28/2009 | CN100455817C Pressurizing cenrrifugal pump |
| 01/27/2009 | US7481270 Subsea pumping system |
| 01/21/2009 | EP1739310B1 Pressurizing centrifugal pump |
| 01/20/2009 | US7478629 Axial flow supercharger and fluid compression machine |
| 01/08/2009 | DE202007012146U1 Saugvorrichtung Suction device |
| 12/17/2008 | EP1941208B1 Oxycombustion method in which all of the carbon dioxide produced can be captured |
| 12/16/2008 | US7465149 Turbine engine cooling |
| 12/03/2008 | EP1687509B1 Method for delivering a multi-phase mixture and pump installation |
| 11/27/2008 | US20080292450 Blower apparatus |
| 11/25/2008 | US7455497 High performance inducer |
| 11/20/2008 | WO2008138829A1 Compressor system for underwater use in the offshore area |
| 11/20/2008 | CA2686794A1 Compressor system for underwater use in the offshore area |
| 11/18/2008 | US7452184 Airfoil platform impingement cooling |
| 11/18/2008 | CA2510497C Gas separator fluid crossover for well pump |
| 10/30/2008 | WO2008128681A1 Filter device |
| 10/16/2008 | US20080251238 Cooling Device |
| 10/08/2008 | CN101283220A Oxycombustion method in which all of the carbon dioxide produced can be captured |
| 09/25/2008 | US20080232954 Vacuum system for conveying a high amount of supplemental liquid |
| 09/25/2008 | DE102007013872A1 Vakuumsystem für hohe Zusatzflüssigkeitsmengen Vacuum system for high additional amounts of liquid |
| 09/24/2008 | CN101270765A Vacuum system for conveying a high amount of supplemental liquid |
| 09/17/2008 | EP1969233A1 Ventilation machine for active mud purification plants |
| 09/12/2008 | WO2008107276A1 Pump system and method for delivering multi-phase mixtures |
| 09/04/2008 | US20080210436 Method for Delivering a Multi Phase Mixture and Pump Installation |
| 08/28/2008 | US20080206042 Methods and system for recuperated circumferential cooling of integral turbine nozzle and shroud assemblies |
| 07/31/2008 | US20080181766 Ceramic matrix composite vane with chordwise stiffener |
| 07/16/2008 | CN100402802C Coolable component and method for the production of a through opening in a coolable component |
| 07/15/2008 | CA2296206C Helico-radio-axial diphasic impeller with a curved shroud |