Patents for F04D 3 - Axial-flow pumps (1,557)
04/1997
04/23/1997EP0769111A1 Seal/bearing assembly
04/16/1997EP0768091A1 Artificial heart
04/02/1997CN2251058Y Vertical fluid sucking pump
04/01/1997US5615987 Worm conveyor for bulk material
03/1997
03/27/1997DE19639223A1 Magnetic pump for water cooling system of IC engine
03/20/1997DE19534061A1 Centrifugal pump operating without lubrication
03/19/1997CN2249835Y Sand preventing underwater electric screw-rod pump
03/04/1997US5607329 Integrated motor/marine propulsor with permanent magnet blades
02/1997
02/20/1997DE19531937A1 Device for moving fluids in pipelines, e.g. for natural gas etc.
01/1997
01/28/1997US5597288 Screw type water flow generating apparatus
01/22/1997CN2245681Y Efficient wear-resistant chemical pump
01/08/1997CN2244632Y Pipe pressurizing pump
12/1996
12/12/1996WO1996032591A3 Pump for conveying a moist pulp
11/1996
11/27/1996CN2241241Y Ground high-pressure water filling device for electric submergible pump
11/27/1996CN1136644A Removing wall structure of fiber
10/1996
10/30/1996EP0740075A1 Screw pump
10/30/1996CN1134520A 水泵 Pump
10/23/1996CN2238333Y Electric screw submerged pump
10/17/1996WO1996032591A2 Pump for conveying a moist pulp
10/17/1996WO1996032588A1 Pump with co-axial magnetic coupling
10/17/1996CA2217724A1 Pump for conveying a moist pulp
10/17/1996CA2215527A1 Pump with co-axial magnetic coupling
10/10/1996WO1996031937A1 Linear motor compressor and its application in cooling system
10/10/1996WO1996031934A1 Rotary machine with an electromagnetic rotary drive
10/02/1996DE19512138A1 Axial-flow working or power machine
10/02/1996CN2236564Y Assembled metering single screw-rod pump
10/02/1996CN1132418A Choking-free rotor pump
09/1996
09/25/1996EP0733805A1 Fibres repelling wall-shape design
09/04/1996CN2234516Y Oil-water-gas mixed delivering three-screw pump
08/1996
08/21/1996CN2233474Y Multi-functional automatic screw pump
07/1996
07/31/1996CN1127850A Fan for split cooking fume exhauster
07/23/1996US5538396 Hydraulic pressure booster device
07/23/1996CA1338464C Non-positive rotary displacements machine for use as a pump, compressor, propulsor, generator or turbine
07/10/1996CN2230835Y Single vane mud pump
06/1996
06/27/1996WO1996019668A1 Pump drive
06/26/1996EP0718530A1 Pump unit
05/1996
05/29/1996CN2228160Y Wear-resisting slag-removing sluice valve
05/22/1996EP0527227B1 Pump having spiral blades
04/1996
04/24/1996CN2225561Y Roof fan
04/09/1996US5505594 Pump with co-axial magnetic coupling
04/03/1996CN1031474C Axial flow high-speed paddle pump
03/1996
03/21/1996DE4433066A1 Centrifugal axial pump with semi=axial inlet nozzles
02/1996
02/27/1996US5494413 High speed fluid pump powered by an integral canned electrical motor
02/15/1996DE4427737A1 Pump with drive motor for conveying rainwater or mixing or cooling water or other fluid medium
01/1996
01/30/1996US5487650 Automotive fuel pump with helical impeller
01/16/1996US5484266 High speed electrically driven axial-flow pump and boat driven thereby
12/1995
12/28/1995WO1995035457A1 Seal/bearing assembly
12/21/1995CA2126262A1 Shaft mounted and impeller mounted pumping sleeve and bushing
11/1995
11/22/1995CN1112203A Front guide wheel vertical axial-flow pump
11/15/1995EP0681654A1 Sealless rotodynamic pump
09/1995
09/21/1995DE19507149A1 Water force screw conveyor
08/1995
08/28/1995EP0681654A4 Sealless rotodynamic pump.
08/23/1995EP0591379B1 Arrangement of a submersible pump
08/23/1995CN2205880Y Evaporative recirculation pump
08/15/1995US5441390 Worm pump for delivering a metal melt
08/01/1995US5437539 Apparatus for the dynamic control of rotating stall and surge in turbo machines and the like
07/1995
07/05/1995EP0660726A1 Heart pump
06/1995
06/14/1995EP0657654A1 Fluid pump
06/14/1995EP0657640A1 Automotive fuel pump with helical impeller
05/1995
05/30/1995US5419270 Arrangement of a submersible pump
05/24/1995EP0654607A1 Sealing box for pumps and its application to power station feed pumps
05/24/1995DE4429880A1 Wind driven drive shaft pump with fans
05/17/1995CN2197487Y Energy saving screwed water pump
04/1995
04/19/1995EP0648935A1 Device for the steadystate extraction of a liquid or pasty phase to a final pressure higher than the initial one
04/12/1995EP0647581A1 Screw conveyor for bulk materials
03/1995
03/13/1995CA2137606A1 High speed fluid pump powered by an integral canned electrical motor
02/1995
02/01/1995EP0636787A1 Unidirectional pumpturbine
01/1995
01/25/1995EP0635101A1 Electrically driven high speed pump
12/1994
12/27/1994US5375976 Pumping or multiphase compression device and its use
12/27/1994US5375975 Fuel pump pre-swirl inlet channel
12/06/1994US5370509 Sealless rotodynamic pump with fluid bearing
11/1994
11/22/1994US5366396 Water-jet drive
11/22/1994US5366341 Helical hydraulic pump
11/17/1994EP0551435B1 Integrated centrifugal pump and motor
11/09/1994EP0623750A1 Pump of the axial type
10/1994
10/26/1994CN2180809Y Natural circulation accelarating pump
10/26/1994CN2180808Y High-quality screw pump without hub
10/12/1994CN2179475Y Vane hydraulic pump
10/08/1994CA2101007A1 Method and apparatus for removably securing rotary element to prime mover output shaft
09/1994
09/21/1994CN2177823Y Single screw stem pump
09/14/1994EP0615068A1 Conical logarithmic spiral viscosity pump
09/13/1994CA2102881A1 Conical logarithmic spiral viscosity pump
09/06/1994US5344443 Heart pump
08/1994
08/30/1994CA2009905C High density grout pump
08/18/1994WO1994018458A1 High-speed electrically driven axial-flow pump and boat driven thereby
08/03/1994EP0609197A1 Screw pump for molten metal
08/02/1994CA2048423C Recirculation and filtration device
07/1994
07/13/1994EP0606054A2 Conveying device having an impellor for propelling gases or liquids in a flow channel
07/13/1994CN2171704Y Axial-flow hydraulic pump
07/05/1994US5326226 Continuous curve high solidity hydrofoil impeller
06/1994
06/28/1994US5324177 Sealless rotodynamic pump with radially offset rotor
06/15/1994EP0600954A1 Pump or compressor unit
06/15/1994CN2168967Y Axial pump
06/08/1994EP0600820A1 Pump, especially for concentrated fibrous suspensions
06/08/1994CN2168103Y mechanical-electric pipe pump
06/03/1994CA2110521A1 Apparatus for pumping medium consistency pulp
05/1994
05/31/1994US5316449 Motor-driven pump with reaction turbine
05/17/1994US5312224 Conical logarithmic spiral viscosity pump
04/1994
04/28/1994WO1994009274A1 Sealless rotodynamic pump
04/27/1994CN1085993A Axial-flow type high-speed paddle pump
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