Patents for F04B 23 - Pumping installations or systems (4,078)
01/1996
01/03/1996EP0690230A1 Pump assembly
12/1995
12/21/1995DE4421375A1 Hydraulic unit with electrically-operated pump
11/1995
11/29/1995EP0683864A1 Hydraulic unit.
11/29/1995EP0642628B1 Double pump
11/22/1995EP0682987A2 Fluid dispenser
11/22/1995EP0682749A1 High pressure pump for accurate dosing of liquids
11/14/1995US5465804 Combination of a power steering pump and air conditioning compressor in an automotive vehicle
10/1995
10/31/1995US5463378 Proximity detection system and oscillator, and method of using same
10/26/1995DE4412703A1 Solvent mixt. prodn. for high pressure liq. chromatography
10/19/1995WO1995027853A1 A submerged pump with coaxial opposing modular pistons, operated by double eccentric cams or similar
10/12/1995DE19513286A1 Hydraulic motor-pump system
10/04/1995EP0587678B1 A pump system
10/03/1995US5454223 Hydraulic load sensing system with poppet valve having an orifice therein
09/1995
09/21/1995WO1995025225A1 Variable displacement type compressor
09/21/1995DE4409359A1 Hydraulic pump driven system for vehicle
09/19/1995US5451145 High pressure fluid pump transformer and method
09/19/1995US5450987 Pumping system with failure responsive discharge valve
08/1995
08/22/1995US5443187 Pump apparatus for pumping melt metal
08/10/1995DE4403618A1 Piston pump with booster pump
08/03/1995DE4403139A1 Submersed oil pump as heat producer
07/1995
07/25/1995US5435697 Seal arrangement for quick change fluid sections
07/25/1995US5435379 Method and apparatus for low-temperature semiconductor processing
07/18/1995CA2094185C Pumping of liquified gas
07/11/1995CA2070013C Variable speed hydraulic pump system for liquid trailer
07/05/1995EP0661450A1 Rotary fluid pressure energy translating device with shaft seal
06/1995
06/14/1995EP0657651A1 Pump
06/14/1995CN2200706Y Hydraulic terminal device of reciprocating plunger pump
06/13/1995US5423662 Precision metered multiple fluid pumping system
06/01/1995WO1995014634A1 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
06/01/1995DE4340235A1 Apparatus for continuous and metered feed of viscous material
06/01/1995CA2177142A1 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
05/1995
05/30/1995CA2038280C Fluid pressure feeding apparatus
04/1995
04/26/1995EP0574420B1 High-pressure cleaning device
04/11/1995US5404943 Multiple pump assembly for wells
03/1995
03/07/1995US5395216 Portable car-used oil extracting and tire inflation apparatus with separately disposed oil and air pumps
02/1995
02/15/1995EP0638721A1 Feed pump
02/14/1995US5388725 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
02/07/1995US5387090 Two-stage positive displacement pump
01/1995
01/26/1995WO1995002749A1 Fluid motor/pump with scavenged case
01/18/1995EP0633981A1 Oil pump for reciprocating piston engines.
01/10/1995CA2028098C Apparatus for and method of managing liquid under pressure
01/05/1995DE4320692A1 Hydraulic pump unit
01/04/1995CN2186806Y Differential pressure unloading valve type liquid distributing mechanical pumping station
01/03/1995US5378111 Motor vehicle fuel pump assembly with pressure relief orifice
12/1994
12/28/1994EP0631050A1 Pump
12/28/1994EP0630445A1 Compressor slide valve control
12/14/1994EP0628723A1 Self-cooling integrated pump for cryogenic liquid
12/12/1994CA2123823A1 Self-cooled and removable integrated cryogenic liquid pump
12/07/1994EP0626892A1 Pump apparatus for pumping melt metal
11/1994
11/30/1994EP0626516A1 Two stage positive displacement pump
11/29/1994CA2124552A1 Method of operating a hydraulic load sensing system
11/24/1994DE4323574C1 Hydraulic tool
11/23/1994CN2183456Y Double-action pump
11/22/1994US5366351 Pump with failure responsive discharge valve
11/15/1994US5363740 Fluid motor/pump with scavenged case
10/1994
10/26/1994EP0621080A1 Paint colour system with a central pump
10/13/1994DE4311930A1 Mechanische Brennstoffpumpe Mechanical fuel pump
10/11/1994US5354180 Hydrostatic assembly having multiple pumps
09/1994
09/13/1994US5346370 Portable pumping system with generator powered clutch assembly
09/08/1994DE4323733C1 Delivery pump
09/08/1994DE4306377A1 Intake pipe charging for mobile hydraulics
08/1994
08/25/1994DE4305474A1 Portable device for removing oil and for inflating tyres in vehicles
08/24/1994EP0611887A1 Fluid pressure generation apparatus
08/18/1994WO1994018459A1 Hydraulic unit
08/04/1994WO1994017305A1 Oil pump for reciprocating piston engines
06/1994
06/29/1994CN1088662A Apparatus for producing of fluidic pressure
06/29/1994CN1088649A Ballast Placing vehicle
06/28/1994CA1330430C Scroll type compressor
06/22/1994EP0603149A1 Vacuum machine
06/13/1994CA2107435A1 Pump system for liquids which can be driven electrically, aeration device as well as connection flange
05/1994
05/11/1994WO1994010445A1 High pressure pump for accurate dosing of liquids
05/05/1994DE4308467A1 Hochdruckpumpe zur Flüssigkeits-Feindosierung High pressure pump for liquid fine dosing
05/03/1994CA1329085C Drive unit adapted for use with manual piston pump
04/1994
04/27/1994EP0593645A1 Quick-change fluid section for piston-type paint pumps
04/12/1994US5302089 Fluid rotating apparatus
03/1994
03/31/1994WO1994006658A1 Pump with integral sump
03/24/1994DE4231785A1 Radial piston pump with resonator - which is surrounded by housing, between which and resonator is intermediate space
03/23/1994EP0587678A1 A pump system.
03/22/1994US5295829 Water supply device for dental work stations
03/10/1994DE4229969A1 Hydropneumatic actuating system lifting lorry axle - is housed in axle tube with pump coupled to wheel hub
03/09/1994EP0479793B1 Submersible motor-driven pump
03/09/1994CN1083568A Water supply booster unit for pressure pump of water source
03/02/1994CN1083179A Spraying pump
03/02/1994CN1023911C Multipurpose pump for inflating and sucking liquid
02/1994
02/17/1994WO1994003726A1 Fluid pressure generation apparatus
02/17/1994DE4227037A1 Hydrostatic axial piston pump - uses three beings for two shafts to reduce structural length
02/15/1994US5287086 Proximity detection system and oscillator
02/08/1994US5284424 Osmotic water purification pumping system with flush valve
02/08/1994US5284423 Computer controlled positive displacement pump for physiological flow simulation
02/03/1994DE4225381A1 Axial piston swash plate pump - incorporates auxiliary positive displacement pump to reduce installation space in hydrostatic drive
01/1994
01/12/1994EP0578390A1 An integrated electric motor-driven inline hydraulic apparatus
12/1993
12/22/1993EP0574420A1 High-pressure cleaning device.
12/16/1993DE4219462A1 Hydraulic set with pump driven by electric motor - has oil container designed in elongated cylindrical shape with rigid frame having at least three corner posts standing in corners of polygon and cross connections between posts
12/09/1993WO1993024753A1 Double pump
12/01/1993EP0572061A1 Viscous fluid pressurizing method and apparatus
11/1993
11/25/1993WO1993023670A1 Hydrostatic engine with oil leakage channel
11/17/1993CN1078540A Pumping of liquified gas
11/16/1993US5261795 Volumetric pump and process for volumetric pumping
11/16/1993US5261794 Fluid pressure feeding apparatus
11/10/1993CN2145880Y Manually or electrically-operated water pump
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