Patents for F04B 23 - Pumping installations or systems (4,078)
03/2009
03/12/2009WO2009030793A1 Pressure-intensifying mechanism
03/12/2009US20090068040 Five-bar compressor
03/12/2009DE102007042888A1 Hydraulic fluid i.e. oil, supplying device for automatic drive, has pump devices including different conveying characteristic curves, and arranged on common drive shaft which is drivable by electric motor
03/11/2009EP2032855A1 Positive displacement piston pump, for lubrication
03/11/2009EP1538357B1 Bearing device
03/11/2009EP1427939B1 A compact vacuum pump
03/11/2009CN101382123A Linear electric motor for an oilfield pump
03/10/2009US7500822 Combined vacuum pump load-lock assembly
03/05/2009US20090060754 Hybrid Compressor
03/04/2009CN201202614Y Energy-saving movable pumping station
03/04/2009CN201202613Y Electromechanical integrated high and low pressure thin oil station
03/04/2009CN201202612Y High pressure oil supply system of high and low pressure thin oil station
02/2009
02/26/2009DE102004030046B4 Hydrostatisches Schrägachsenmodul mit mehreren Jochen Hydrostatic oblique axis module with multiple yokes
02/25/2009CN201198822Y Super high-pressure hydraulic pump
02/24/2009CA2462481C A fluid dispenser with twirling dip tube
02/18/2009EP2025934A1 Motor pump unit
02/18/2009CN101368559A Pumping system and pumping method
02/12/2009WO2009018865A1 Power steering pump drive
02/12/2009US20090038292 Dosing Pump Assembly
02/11/2009CN201193597Y High pressure plunger pump device
02/11/2009CN100460672C Pump system for conveying lubricating oil
02/10/2009US7488159 Zero-clearance ultra-high-pressure gas compressor
02/05/2009US20090035153 Jet pump retention and seal method with living hinge
02/04/2009EP2019923A1 Method and apparatus for controlling a relay pumping setup
02/04/2009CN100459038C Flexible tank and a chemical liquid supply apparatus using the same
01/2009
01/29/2009WO2009013175A1 Pump, particularly high-pressure fuel pump
01/29/2009US20090028732 Pressurizing device
01/29/2009DE102007042933A1 Multiple pump system for motor vehicle, has leakage oil borehole whose open end is provided with protective cover preventing entry of foreign bodies into opened end of leakage oil bore hole
01/28/2009EP1915530B1 Cryogenic compressor comprising a high-pressure phase separator
01/28/2009CN201187489Y Horizontal built-in type hydraulic pump station
01/28/2009CN201187440Y Adjustable type electric multi-point grease lubricating pump
01/28/2009CN201187428Y Oil pressure pump as power source of machining tool
01/22/2009DE102007033244A1 Kolbenpumpe und Betriebsverfahren hierfür Piston pump and operating method therefor
01/15/2009US20090016913 Balanced dual rocking piston pumps
01/15/2009DE10215068B4 Ölbehälter Oil container
01/14/2009EP2013479A2 Control valve assembly for a compressor unloader
01/14/2009EP2013478A1 Apparatus and method for pumping fluid
01/08/2009US20090008331 Hemodialysis systems and methods
01/08/2009DE102008002481A1 Kolbenpumpe Piston pump
01/06/2009CA2413729C Flywheel system with parallel pumping arrangement
12/2008
12/31/2008CN100447409C Electro-hydraulic power unit with a rotary cam hydraulic power unit
12/30/2008US7470117 Variable discharge fuel pump
12/30/2008US7469683 Fuel system with pressure regulation and pressure relief
12/25/2008US20080314039 Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof
12/24/2008WO2008155511A1 Disposable pump cartridge
12/18/2008US20080310973 Water pumping device by using pressure differential
12/17/2008CN100443324C Opposing pump/motors
12/11/2008WO2007095047A3 Regenerative pumping element start stage for high-speed centrifugal pump
12/11/2008US20080304977 Use of Fluidic Pumps
12/10/2008CN201162641Y Two-phase fluid pump
12/04/2008WO2008021503B1 Air supply mechanism for ventricular assist system
12/02/2008US7458204 Dosing pump assembly
11/2008
11/27/2008WO2008143983A2 Submersible pumping systems and methods
11/27/2008US20080289338 High Efficiency 2-Stage Fuel Pump and Control Scheme for Gas Turbines
11/27/2008US20080289326 Pump Unit
11/26/2008EP1994278A1 Slide valve with hot gas bypass port
11/25/2008US7454908 Zero turn transaxle
11/20/2008WO2008138712A1 Pump unit with a main pump and an auxiliary pump
11/20/2008WO2008138711A1 Pump unit with a main pump and a charging pump with a variable pump capacity
11/20/2008WO2006118777A3 Automatic start additive injection system for fire fighting vehicles
11/20/2008US20080286134 Submersible pumping systems and methods for deep well applications
11/20/2008US20080282776 Universal pump platform
11/20/2008DE10210300B4 Pumpenelement für eine Hochdruckpumpe und Hochdruckpumpe mit steuerbarer Fördermenge Pump element for a high pressure pump and high pressure pump with controllable flow
11/20/2008DE102007032103A1 Pumpeneinheit mit einer Hauptpumpe und einer in ihrem Fördervolumen verstellbaren Ladepumpe Pump unit with a main pump and an adjustable in its delivery charge pump
11/20/2008DE102007032102A1 Pumpeneinheit mit Hauptpumpe und Hilfspumpe Pump unit with main pump and auxiliary pump
11/19/2008CN201152243Y High-pressure pump rapid water filling assembly
11/19/2008CN201152242Y Single wire electric lubricating pump
11/19/2008CN100434666C Portable engine pump
11/18/2008US7452193 Adjustable pump assembly with single motor and multiple pumps
11/18/2008US7452191 Vacuum pump and method for generating sub-pressure
11/18/2008CA2510497C Gas separator fluid crossover for well pump
11/13/2008WO2008135433A1 Fuel pump for an injection system of an internal combustion engine
11/12/2008CN101305223A Independent displacement opposing pump/motors and method of operation
11/11/2008US7448857 Fluid pump and cartridge
11/06/2008WO2008132839A1 Drawing device and method of drawing contained fluid
11/06/2008US20080273996 Method and Device for Regulating Fluid Pump Pressures
11/06/2008US20080273991 Air cooled packaged multi-stage centrifugal compressor method
11/05/2008CN100430604C Fluid draining pump device
10/2008
10/30/2008US20080267790 Electronically Controlled Vacuum Pump
10/23/2008WO2008021503A3 Air supply mechanism for ventricular assist system
10/21/2008US7437873 Connection block for a hydrostatic piston machine
10/16/2008WO2007120506A3 Control valve assembly for a compressor unloader
10/16/2008US20080253901 Jet Ejector System and Method
10/16/2008DE19825759B4 Hydraulische Antriebsbaugruppe und Verfahren zur kontinuierlichen Regulierung des Fördervolumens einer Verstellpumpe zum Antreiben einer Hilfsvorrichtung Hydraulic drive assembly and method for continuous regulation of the volumetric displacement of a variable displacement pump for driving an auxiliary device
10/15/2008EP1600642B1 Hydraulic device
10/15/2008EP1456538B1 Dual capacity compressor
10/09/2008DE102007016627A1 Radial piston pump for use as e.g. feed pump, in motor vehicle, has crosshead arranged in pump housing recess such that it forms low pressure piston, and part of recess forms low pressure chamber supplied with pressure from crosshead
10/07/2008US7431575 Auto valve priming pump
10/07/2008US7431181 Fluid-dispensing pump and container provided therewith
10/07/2008US7430861 Shift controlled bypass orifice for hydrostatic transmission
10/02/2008WO2008030760A3 Oil-free air compressor system with inlet throttle
10/02/2008US20080240945 Motor/Pump Unit
10/02/2008US20080240935 Balanced variable displacement vane pump with floating face seals and biased vane seals
10/02/2008US20080236184 Injectible two-staged rotary compressor and heat pump system
10/01/2008EP1558796B1 Device and method for injecting a liquid colour into a polymer melt
09/2008
09/30/2008US7428812 Hydraulic tool with wobble plate transmission
09/30/2008CA2587998A1 Pump expansion vessel
09/25/2008WO2008115218A2 Methods and apparatus for pumping liquified gases
09/25/2008US20080232988 Material Pump
09/17/2008CN101265891A Oil-hydraulic pump as machining tools power source
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