Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04D - Non-positive-displacement pumps › F04D 31 - Pumping liquids and elastic fluids at the same time
Patents for F04D 31 - Pumping liquids and elastic fluids at the same time (579)
01/2001
01/09/2001US6171074 Single-shaft compression-pumping device associated with a separator
12/2000
12/26/2000US6164308 System and method for handling multiphase flow
12/14/2000WO2000075518A1 A pumping arrangement for pumping a liquid product from a tank or container
11/2000
11/30/2000WO2000071237A1 Device for the mixing of liquid with gas and/or other liquids and/or granular, favourably powder-like material, and for the transportation of such mixtures
11/21/2000US6149385 Multiphase fluid pumping or compression device with blades of tandem design
11/07/2000US6142743 Wet gas compression device and method with evaporation of the liquid
10/2000
10/03/2000US6126417 Conveying device for liquid and gaseous media, such as vacuum cleaners, pumps etc.
09/2000
09/26/2000US6123523 Gas-dispersion device
09/06/2000EP1033493A2 Stage in a submerged multiple-stage pump
07/2000
07/11/2000US6086334 Method of operating a bi-turbojets polyphasic pump with axial thrust cancellation
06/2000
06/28/2000CA2296212A1 Diphasic impeller with curved channel in the meridional plane
06/15/2000WO2000034663A1 Improvements relating to froth pumps
06/13/2000US6074554 Aeration system
04/2000
04/20/2000WO2000022303A1 Pulp pump
04/19/2000EP0993555A1 Apparatus for conditioning air
04/19/2000CN1251156A Centrifugal liquid pulp with internal gas injection
03/2000
03/29/2000EP0989306A1 Compression-pumping system with alternate operation of the compression section and its related process
03/14/2000US6036434 Aeration system
03/09/2000DE19941323A1 Turbo engine with improved phase mixing to pump poli-phase crude oil flow has beads in flow channels to generate turbulent eddy flow to mix liquid and gaseous phases
02/2000
02/16/2000CN1049476C Turbine driving pump
02/10/2000WO2000006908A1 Device for increasing the pressure in a medium flow
02/10/2000WO2000006907A1 Rotation device
01/2000
01/19/2000EP0972136A1 Centrifugal liquid pump with internal gas injection
12/1999
12/08/1999EP0961852A1 Pump for fibrous pulp suspension with means for separating gas from the suspension
10/1999
10/05/1999US5961295 Mixed flow liquid ring pumps
10/05/1999US5961282 For compressing a multi-phase fluid
09/1999
09/14/1999US5951255 Aggregation, supporting with blades or fibers of carbon and ceramics, silicon carbide sheaths
08/1999
08/26/1999WO1999042732A1 Cell for pumping polyphasic effluent and pump comprising at least one of said cells
07/1999
07/28/1999CA2258350A1 Wet gas compression device with an integrated compression/separation phase
07/15/1999WO1999027257A3 Stage in a submerged multiple-stage pump
06/1999
06/03/1999WO1999027257A2 Stage in a submerged multiple-stage pump
05/1999
05/26/1999EP0917905A1 Device and process for the diphase compression of a soluble gas within a solvent
05/04/1999US5899668 Two-stage liquid ring pumps having separate gas and liquid inlets to the second stage
04/1999
04/08/1999DE19743475A1 Minutely perforated conveyor wheel
03/1999
03/23/1999US5885058 Multiphase fluid pumping or compression device with blades of tandem design
03/11/1999DE19737312A1 Rotary pump running wheel for sewage processing, composting etc.
01/1999
01/14/1999WO1999001669A1 Apparatus for conditioning air
01/13/1999CN1204737A Mixed flow liquid ring pumps
01/07/1999EP0889243A1 Mixed flow liquid ring pumps
11/1998
11/11/1998EP0877166A1 Pump for gasses or liquids, used in suction apparatus, wet suction apparatus, and pumps
11/05/1998CA2236872A1 Conveying device for liquid and gaseous media, such as vacuum cleaners, pumps etc.
10/1998
10/27/1998US5827049 Bi-turbojets polyphasic pump with axial thrust cancellation
10/22/1998WO1998046887A1 Centrifugal liquid pump with internal gas injection
10/14/1998CN1196101A Pump for fibrous pulp suspension with means for separating gas from suspension
09/1998
09/23/1998EP0619860B1 Multiphase fluid treatment
09/17/1998DE19708825A1 Media transport assembly with vanes
08/1998
08/26/1998CN1191201A Axial conveyor and loop reactor containing said axial conveyor
08/05/1998EP0856665A2 Axial conveyor, preferably with aeration element, and bladed reactor provided with such conveyor
08/05/1998EP0856664A1 Two-stage liquid ring pumps
07/1998
07/14/1998US5779439 Centrifugal liquid pump with internal gas injection
07/07/1998US5775879 For communicating energy to a multiphase effluent
05/1998
05/26/1998US5755554 Multistage pumps and compressors
09/1997
09/17/1997EP0795689A1 Multiphase fluid treatment
07/1997
07/02/1997EP0781929A1 Device for pumping or compressing a multi-phase fluid comprising tandem blading
06/1997
06/25/1997EP0780577A1 Improved multistage pumps and compressors
05/1997
05/13/1997US5628616 Downhole pumping system for recovering liquids and gas
04/1997
04/10/1997WO1997013071A1 Aeration system
04/10/1997CA2232735A1 Aeration system
04/01/1997US5615997 Pump for pumping fibrous pulp suspension
03/1997
03/13/1997WO1997009482A1 Pump for fibrous pulp suspension with means for separating gas from the suspension
01/1997
01/08/1997CN1139740A Gas and liquid separator for pump set
01/07/1997US5591001 Aeration system
12/1996
12/27/1996EP0579688B1 Impeller for centrifugal pump
12/03/1996US5580214 Multiphase fluid treatment
11/1996
11/28/1996DE19519553A1 Immersed aerator
11/19/1996US5575615 Multiphase fluid treatment
10/1996
10/08/1996US5562405 Multistage axial flow pumps and compressors
09/1996
09/24/1996US5558502 Turbo pump and supply system with the pump
08/1996
08/20/1996US5547347 For dispersing a gas into a liquid
04/1996
04/10/1996CN1120128A Blade used in fluid mechanism and fluid mechanism using same
03/1996
03/20/1996EP0702156A1 Multiphase pumping system with control loop
02/1996
02/27/1996US5494067 Device for regulating and damping a multiphase flow
02/06/1996US5489187 Centrifugal pump
11/1995
11/21/1995CA2149832A1 Twin-turbojet polyphasic pump
11/15/1995EP0493428B1 Pump or compressor unit
09/1995
09/13/1995EP0671563A1 Axial-flow pumps
07/1995
07/05/1995EP0661425A1 Turbo pump and supply system with a pump
06/1995
06/08/1995DE4341215A1 Combined centrifugal pump and axial air compressor for washing machine etc
06/06/1995US5421357 Process for optimizing a device for regulating and damping a multiphase flow and device obtained with the process
06/06/1995CA2089077C System for simultaneously degassing and pumping a liquid
05/1995
05/23/1995US5417544 For undersea use
05/17/1995EP0653565A1 Tubular shaft motor and pump assembly
02/1995
02/28/1995US5393202 Process and device for optimizing the transfer by pumping of multiphase effluents
01/1995
01/18/1995CN2187695Y Rotary drum type oil gas mixing transmission pump
01/17/1995CA1333972C Method and apparatus for separating gas with a pump from a medium being pumped
01/03/1995US5377714 Device and method for transferring a multiphase type effluent in a single pipe
12/1994
12/27/1994US5375976 Pumping or multiphase compression device and its use
12/27/1994US5375618 Multiphase fluid regulating and distributing device
11/1994
11/23/1994CN2183464Y Multi-purpose centrifugal pump
10/1994
10/19/1994EP0619860A1 Multiphase fluid treatment
09/1994
09/29/1994DE4309697A1 Method for hydrodynamic conveying of oxidation-sensitive liquids, and installation and pump therefor
06/1994
06/28/1994US5324166 Apparatus and method for pumping a liquid
06/08/1994EP0600821A1 Use of a multi-stage propellor pump for pumping fibrous suspension concentrates and propellor pump specially adapted for this operation
05/1994
05/17/1994US5312466 Pumping installation for pumping out an enclosure containing gases which are mixed with solid particles or which generate solid condensates or particles
04/1994
04/06/1994CN2160782Y Hot-water circulation pump with steam seperator
03/1994
03/22/1994US5295810 Apparatus for compressing a fluid
03/16/1994EP0587464A1 Device for controlling and distributing a polyphase fluid
01/1994
01/26/1994EP0579688A1 Impeller for centrifugal pump.
12/1993
12/28/1993US5273404 Tubular shaft motor and pump assembly
10/1993
10/19/1993US5254292 Device for regulating and reducing the fluctuations in a polyphasic flow, and its use
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