| Patents for F04D 3 - Axial-flow pumps (1,557) |
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| 02/24/2005 | US20050040183 Method and device for transporting a flowable building material |
| 02/09/2005 | CN2677670Y Helically blade insert pump for handling semi-fluid |
| 01/27/2005 | US20050019167 Method and controlling an assist pump for fluid delivery systems with pulsatile pressure |
| 01/27/2005 | US20050017603 Pump |
| 01/26/2005 | CN1570396A Dried mixed mortar spraying screw-spindle pump rotor, special-purpose tool for making the rotor and method for manufacture thereof |
| 01/26/2005 | CN1186534C Axial flow liquid compression device |
| 01/19/2005 | CN2672325Y Mechanical seal device in ground driven single screw pump speed reducer |
| 01/13/2005 | WO2005002646A1 Pump |
| 01/13/2005 | US20050008510 Screw pump for transporting emulsions susceptible to mechanical handling |
| 12/30/2004 | US20040265153 Fluid pump/generator with integrated motor and related stator and rotor and method of pumping fluid |
| 12/29/2004 | CN2667206Y Screw pump complete oil producing equipment set drived by motor underwell |
| 12/15/2004 | EP1486145A2 Membrane deflation in combination with rigid surfaces |
| 12/15/2004 | EP1485144A1 Dual inlet mixed-flow blood pump |
| 12/15/2004 | CN1554872A Two-way through flow/axial flow pump |
| 12/15/2004 | CN1554870A Power system of oil-submersible screw pump |
| 12/08/2004 | CN1553161A Pump lever torque force sensor |
| 12/08/2004 | CN1553056A Screw pump rotor machining process |
| 12/07/2004 | US6827820 Degassing centrifugal apparatus, process for pumping and degassing a fluid and process for producing paper or board |
| 12/01/2004 | CN1178006C Method for controlling position of rotating component which supported by permanent-magnet |
| 11/25/2004 | WO2004101029A1 Blood pump with frusto-conical bearing structure |
| 11/25/2004 | US20040236173 Implantable heart assist system and method of applying same |
| 11/18/2004 | US20040228970 Method and device for discharging fluid |
| 11/17/2004 | EP1476207A1 Implantable heart assist system |
| 11/17/2004 | CN1546865A Approximate sealed dual head screw |
| 11/02/2004 | US6813328 Nuclear reactor submerged high temperature spool pump |
| 10/27/2004 | CN1172782C Method for making rubber-lined stator or screw oil pump |
| 10/20/2004 | EP1468189A1 Pump with a pump shaft which extends through a drive motor |
| 10/20/2004 | CN1172091C Method for controlling assist pump for fluid delivery system with pulsatile pressure |
| 10/07/2004 | DE10312978A1 Electro-hydrodynamic unit e.g. fluid pump or heating pump, has radial struts formed as vanes or blades for forming the fluid pressure generator |
| 09/29/2004 | CN2644714Y Screw pump hot well clean-up check valve |
| 09/22/2004 | EP1097305B1 Screw pump |
| 09/15/2004 | CN2641327Y Sand blocking proof type screw stem pump |
| 09/14/2004 | US6790017 Integrated pump with serial-connected pump units arranged in parallel |
| 09/14/2004 | US6790016 Motor and its blade unit |
| 09/09/2004 | US20040174079 System for passive and stable suspension of a rotor in rotor/stator assemblies |
| 09/09/2004 | DE202004006162U1 Pump esp. water pump has main part with integral magnetic exciting device to control magnet-regulated device to force fluid into and out of main part chamber |
| 09/01/2004 | EP1451471A2 Screw pump for transporting emulsions susceptible to mechanical handling |
| 09/01/2004 | CN2637770Y Sand delivery device on screw pump oil extracting well pump |
| 08/25/2004 | CN2635946Y Oil and gas separator for electric oil submerged screw pump |
| 08/18/2004 | CN1521793A Fluid discharging method and fluid discharging apparatus |
| 08/12/2004 | US20040156721 Pump for transporting heat-exchange medium for a multi-tube reactor |
| 08/04/2004 | CN2630526Y Screw pump sucker rod torsional buffer |
| 08/04/2004 | CN2630525Y Screw pump sucker rod tripping-preventing joint |
| 07/29/2004 | DE202004007525U1 Rotary pump, especially propeller pump, has coupling element for absorbing vibrations, accelerations, forces produced by pump shaft drive between pump shaft section outside pump housing and housing |
| 07/29/2004 | DE10302662A1 Rotor dynamic pump or water jet generator for jet boat has blades mounted within a cylindrical rotor |
| 07/29/2004 | DE10301877A1 Electric motor for jet propulsion system of watercraft or fluid pump, has fluid rectification screw formed to mirror suction vane about rotor axis |
| 07/21/2004 | CN2627480Y Pump rod torque force sensing device |
| 07/15/2004 | WO2004059171A1 Hydrodynamic bearing-type pump |
| 07/15/2004 | US20040136846 Bladeless pump |
| 07/14/2004 | CN2625608Y Sand jam preventing screw pump capable of washing well |
| 07/14/2004 | CN1513089A Pump for transporting heat exchange medium for multi-tube reactor |
| 07/07/2004 | EP0961621B1 Intravascular blood pump |
| 07/07/2004 | CN2623914Y Protective device for screw pump oil production system |
| 07/01/2004 | WO2004055379A1 A screw conveyor |
| 06/30/2004 | EP1203160B1 Ribbon drive propulsion system and method |
| 06/29/2004 | US6755623 Minimizes instability and tendency to become more submerged during activation and operation |
| 06/22/2004 | US6752602 Blood pump |
| 06/17/2004 | US20040115038 Device for axially conveying fluids |
| 06/17/2004 | US20040114705 Nuclear reactor submerged high temperature spool pump |
| 06/16/2004 | CN1153905C Small pump device and electric thermos bottle |
| 06/01/2004 | US6742999 Device for delivering single-phase or multiphase fluids without altering the properties thereof |
| 05/26/2004 | CN1499946A Membrane deflation in combination with rigid surface |
| 05/25/2004 | US6741000 Electro-magnetic archimedean screw motor-generator |
| 05/25/2004 | US6739844 Fuel pump with contamination reducing flow passages |
| 05/20/2004 | US20040096320 Multistage submersible axial-flow pump |
| 05/19/2004 | CN2616722Y Vertical screw pump |
| 05/18/2004 | US6736594 Axial-flow type hydraulic machine |
| 05/12/2004 | EP1417416A1 Floating pump assembly |
| 05/11/2004 | US6732680 Internal combustion engine with liquid coolant pump |
| 05/06/2004 | EP1416163A2 Centrifugal pump with self cleaning bearing surface |
| 05/06/2004 | EP1415672A2 Pressure sensor |
| 04/29/2004 | WO2003048579A3 Screw pump for transporting emulsions susceptible to mechanical handling |
| 04/28/2004 | CN1147342C Degassing centrifugal apparatus, process for pumping and degassing fluid and process for producing paper or board |
| 04/21/2004 | EP1409103A1 Degassing centrifugal apparatus, process for pumping and degassing a fluid and process for producing paper or board |
| 04/21/2004 | CN1491323A Device for axially conveying fluids |
| 04/20/2004 | US6723205 Degassing centrifugal apparatus with energy recovery, process for degassing a fluid and process for producing paper or board |
| 04/01/2004 | WO2003103534A3 Percutaneously introduced blood pump and related methods |
| 03/24/2004 | EP1399678A1 Pump for transporting a heat exchange medium for a multi-tube reactor |
| 03/09/2004 | US6702555 Fluid pump having an isolated stator assembly |
| 03/03/2004 | CN1140704C Axial-flow pump |
| 02/26/2004 | US20040035961 Sanitary shredder |
| 02/25/2004 | EP1102936B1 Rotation device |
| 02/19/2004 | US20040033153 Fluid transport system and method therefor |
| 02/19/2004 | US20040033142 Ribbon drive pumping apparatus and method with added fluid |
| 02/17/2004 | US6692318 Mixed flow pump |
| 02/17/2004 | US6692225 Liquid pressing device |
| 02/12/2004 | US20040028525 Rotary pump with exclusively hydrodynamically suspended impeller |
| 02/12/2004 | US20040027020 Electro-magnetic archimedean screw motor-generator |
| 02/05/2004 | US20040024285 Blood pump with impeller |
| 02/04/2004 | EP1386081A1 Method for adjusting the position of a rotating component which is borne by means of a permanent-magnet |
| 02/04/2004 | EP1171944B1 Rotor device |
| 02/04/2004 | CN1472440A Fluid conveying system and method |
| 02/03/2004 | US6685621 Implantable heart assist system and method of applying same |
| 02/03/2004 | US6685425 Inlet bleed heater for heating inlet air to a compressor and methods of fabricating and transporting the heater |
| 01/29/2004 | WO2004009999A1 Electronic fluid pump |
| 01/29/2004 | US20040019251 Implantable heart assist system and method of applying same |
| 01/29/2004 | CA2493015A1 Electronic fluid pump |
| 01/28/2004 | CN1136645C Linear motor compressor and its application in cooling system |
| 01/22/2004 | US20040013547 Electronic fluid pump |
| 01/08/2004 | DE10326582A1 In einer Kühlwasserleitung integriert enthaltene Kühlwasserpumpe In a cooling water line integrated cooling water pump included |