Patents for F04D 3 - Axial-flow pumps (1,557)
01/2003
01/01/2003CN2528977Y Taper screw pump
01/01/2003CN2528976Y Underground screw pump driven by oil-submersible D.C. Dynamo
12/2002
12/18/2002CN2526546Y Speed reducer for electric submersible screw pump
12/17/2002US6494903 Over the wire heat exchange catheter with distal valve
12/12/2002WO2002099287A1 Pump for transporting a heat exchange medium for a multi-tube reactor
12/12/2002US20020184710 Membrane deflation in combination with rigid surfaces
12/12/2002DE10127365A1 Pump, used for conveying heat transfer medium, comprises housing containing guide pipe and having opening in its lower part, via which heat transfer medium removed from lower region of reactor flows into housing
12/04/2002EP1261385A1 Blood pump
12/02/2002WO2002088548A1 Method for adjusting the position of a rotating component which is borne by means of a permanent-magnet
11/2002
11/28/2002DE10123138A1 Verfahren zur Lageregelung eines permanentmagnetisch gelagerten rotierenden Bauteils Method for position control of a permanent magnet-mounted rotating component
11/20/2002EP1257731A1 Equipment with mutually interacting spiral teeth
11/07/2002DE10123139A1 Verfahren zur Regelung einer Unterstützungspumpe für Fluidfördersysteme mit pulsatilem Druck A method for controlling an assist pump for fluid delivery systems with pulsatile pressure
11/05/2002US6474962 Miniature well and irrigation pump apparatus
10/2002
10/24/2002WO2002082955A1 Pump with axial conduit
10/22/2002US6468029 Pump device
10/17/2002US20020151761 Implantable heart assist system and method of applying same
10/17/2002US20020150465 Ribbon drive pumping apparatus and method
10/10/2002WO2002078493A1 Membrane deflation in combination with rigid surfaces
10/02/2002CN2514144Y Light axial-flow pump
09/2002
09/26/2002WO2002075913A1 Piezo-electric drive
09/26/2002DE10113660A1 Piezoelectric drive has cylindrical piezoelectric element of stator contacted by projections of mechanical coupling released periodically for rotation of rotor
09/24/2002US6454547 Delivery unit
09/10/2002US6447275 Screw pump
09/10/2002US6447266 Blood pump having a magnetically suspended rotor
09/10/2002US6447265 Magnetically suspended miniature fluid pump and method of designing the same
09/04/2002CN2508889Y Special equipment for single-screw pump metal stator
09/04/2002CN1367711A Degassing centrifugal apparatus, process for pumping and degassing fluid and process for producing paper or board
08/2002
08/29/2002WO2002066837A1 Device for axially conveying fluids
08/29/2002US20020119040 Crossing spiral compressor/pump
08/29/2002DE10108810A1 Vorrichtung zur axialen Förderung von Flüssigkeiten Device for axial pump liquids
08/22/2002US20020114694 Pump device
08/21/2002CN1365421A Ribbon drive powder generation apparatus and method
08/20/2002CA2193482C Seal/bearing assembly
08/14/2002EP0769111B1 Combined seal and bearing assembly apparatus
08/14/2002CN2505619Y Full-oscillating single screw pump
08/14/2002CN1364213A Hydraulic seal for rotary pumps
08/14/2002CN1363778A Motor pump
08/13/2002US6431926 Ribbon drive propulsion system and method
08/07/2002CN1088804C Oil pickup apparatus for hermetic compressor
07/2002
07/30/2002US6425735 Clamp for a horizontal skid which allows axial movement of pump
07/25/2002WO2001008580A9 Catheter with coiled multi-lumen heat transfer extension
07/25/2002WO2001002724A9 Blood pump having a magnetically suspended rotor
07/10/2002CN2499601Y Multiphase mixed transport pump for oil, gas and water
07/09/2002CA2047975C Device for multiphased pumping or compression and use thereof
06/2002
06/26/2002EP1027543B1 Low head pumping system for fish farms
06/18/2002US6406277 Centrifugal pump with inducer intake
06/12/2002EP1212516A1 Hydraulic seal for rotary pumps
06/12/2002CN1353250A Pump using rotor for motor as its spiral rotor
06/11/2002CA2253067C Pump impeller
05/2002
05/30/2002US20020064465 Ribbon drive pumping with centrifugal contaminant removal
05/30/2002US20020062644 Ribbon drive power generation for variable flow conditions
05/29/2002EP1208630A1 Device for delivering single-phase or multiphase fluids without altering the properties thereof
05/29/2002CN2493756Y Adjustable screw pump liner
05/29/2002CN2493755Y Single screw pump
05/15/2002CN2491629Y Uniform wall thickness rubber screw bolt pump stator
05/08/2002EP1203160A1 Ribbon drive propulsion system and method
05/08/2002CN1348624A Device for delivering single-phase or multiphase fluids without altering the properties thereof
05/07/2002CA2092438C Integrated centrifugal pump and motor
05/02/2002EP1200735A1 Blood pump having a magnetically suspended rotor
05/02/2002EP1200168A1 Degassing centrifugal apparatus with energy recovery, process for degassing a fluid and process for producing paper or board
05/01/2002CN1347585A Rotor device
05/01/2002CN1346938A Axial-flow pump
04/2002
04/18/2002US20020044867 Bladeless pump
04/18/2002DE10042868C1 Labyrinth pump has exchangeable lining on outside of bush on shaft and on inside of sleeve rigidly fixed in casing, with helical grooves on inside of sleeve's lining and on outside of bush's lining
04/11/2002DE10047387A1 Elektrisch angetriebene Kühlmittelpumpe An electrically powered coolant pump
04/09/2002US6368075 Pump with a magnetically supported rotor
03/2002
03/28/2002WO2001061151B1 Equipment with mutually interacting spiral teeth
03/28/2002US20020035974 Electrically powered coolant pump
03/27/2002EP1191232A2 Electric driven cooling pump
03/27/2002EP1189646A1 Magnetic suspension blood pump
03/26/2002US6361271 Crossing spiral compressor/pump
03/21/2002WO2001087121A3 Inflatable device with recessed fluid controller and modified adjustment device
03/19/2002US6357998 Ribbon drive pumping apparatus and method
03/19/2002US6357997 Ribbon drive power generation apparatus and method
03/14/2002DE10017145C2 Pumpe zum Fördern von Mörtelmaterial Pump for pumping grout material
02/2002
02/14/2002US20020018713 Rotary pump with exclusively hydrodynamically suspended impeller
02/14/2002DE10054669C1 Centrifugal pump, to transport coarsely dispersed solid and fluid mixture, has hollow impeller with inner pipe and annular chambers branching laterally from inner pipe and opening into exit channel
02/06/2002CN2475851Y Electric motor pump
01/2002
01/31/2002WO2002008610A1 Sanitary shredder
01/31/2002CA2412597A1 Sanitary shredder
01/30/2002CN1078641C Pump incorporated in textile package dyeing machine
01/16/2002EP1171944A1 Rotor device
01/16/2002CN2471977Y Axial pump
01/09/2002CN2470582Y Impeller-offset double-tuper screw compressor
01/02/2002CN2469214Y Vertical and all regulating type axial-flow pump
12/2001
12/20/2001WO2001096741A1 Fuel pump with contamination reducing flow passages
12/13/2001US20010051097 Inline type pump
12/12/2001CN2464965Y Both motor rotor and screw rotator pump
12/12/2001CN2464632Y Axial flow water injection propelling pump
11/2001
11/29/2001US20010044969 Inflatable device with recessed fluid controller and modified adjustment device
11/22/2001WO2001087121A2 Inflatable device with recessed fluid controller and modified adjustment device
11/22/2001CA2735313A1 Inflatable device with recessed fluid controller and modified adjustment device
11/06/2001US6312216 Multiphase turbo machine for improved phase mixing and associated method
10/2001
10/31/2001CN1319727A Built-in type disrotatory axial pump
10/31/2001CN1319726A Double-driving dirotatory axial flow pump
10/31/2001CN1319724A Pipeline pump
10/23/2001US6306338 Melt withdrawal device for melt furnaces for charging casting machines
10/23/2001US6305692 Seal device
10/18/2001US20010032003 Over the wire heat exchange catheter with distal valve
10/18/2001US20010031210 Blood pump having a magnetically suspended rotor
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16