Patents for F04D 13 - Pumping installations or systems (12,375)
10/1998
10/21/1998EP0777825B1 Pumping unit with very low voltage three-phase motor
10/21/1998CN2295065Y Deep-well electric pump fitted with front impeller
10/20/1998US5823751 Mounting device for submersible electric motor driven pump
10/08/1998WO1998044261A1 Improved mechanical seal for shafts and axles
10/08/1998WO1998028543A3 Device for feeding single-phase and polyphase fluids
10/07/1998EP0821596A4 Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings
10/07/1998CN2293667Y Integral outer shell submerged pump
10/07/1998CN1195388A Improvement in deep well pump apparatus
10/06/1998US5818131 Linear motor compressor and its application in cooling system
10/01/1998WO1998042981A1 Wind and solar energy installation
09/1998
09/30/1998CN1194338A Sealing structure of pressure follow and match follow and its motor-pump system
09/22/1998US5810568 Rotary pump with a thermally conductive housing
09/22/1998US5810208 Electrically powered pumping system
09/17/1998DE19802227A1 Immersion pump with lower and upper housing sections
09/17/1998DE19706087A1 Pump for lifting of fluids
09/16/1998EP0864759A2 Pump for cistern
09/15/1998US5807313 Battery powered surgical irrigator
09/15/1998US5806560 Aircraft fuel transfer pump with auxiliary fuel line scavenge pump
09/08/1998US5802869 Absorption refrigerator
08/1998
08/26/1998EP0860046A1 Rotary pump and process to operate it
08/26/1998EP0680289B1 Liquid separating unit
08/26/1998CN2289080Y Fluid-driven booster-type water flooding pump
08/25/1998US5797731 Group of full-circumferential-flow pumps and method of manufacturing the same
08/18/1998US5795137 Water pump for internal combustion engines
08/18/1998US5795127 Vertical shaft self-priming centrifugal pump
08/18/1998CA2059392C Pressure and recirculating pump
08/12/1998CN1190024A Measure apparatus for medical liquid
08/06/1998WO1998034030A1 Centrifugal process pump with auxiliary impeller
08/06/1998WO1998034009A1 Installation for pumping a two-phase liquid/gas effluent
08/05/1998EP0856666A1 Liquid delivery device, method of controlling such liquid delivery device, and liquid delivery pump
08/05/1998EP0856323A2 Medical liquid metering device
08/05/1998EP0723631B1 Centrifugal pump, especially for fountains
08/04/1998US5788466 Irrigation booster pump system
07/1998
07/30/1998DE19702477A1 Double pump with two motor=driven centrifugal pumps
07/29/1998EP0855516A1 Wet rotor submersible motor for driving a centrifugal pump
07/29/1998EP0855515A1 Pump, especially adjustable coolant pump, for motor vehicles
07/29/1998CN1188856A Autoatic operation apparatus of pump
07/28/1998US5785507 Evaporative cooler pump
07/28/1998US5785504 Pump with separate pumping stages for pumping a plurality of liquids
07/28/1998US5785491 Liquid pump having a driving unit and a driven unit with a resilient seal therebetween
07/28/1998US5785013 Electrically driven coolant pump for an internal combustion engine
07/23/1998DE19701993A1 Coolant pump for motor vehicles
07/15/1998EP0820562A4 Pump with co-axial magnetic coupling
07/15/1998CN2286249Y Down-draft multi-stage submersible electric pump
07/14/1998US5779456 For transmitting torque to a shaft through a nonmagnetic cylindrical barrier
07/14/1998US5779449 Separable, multipartite impeller assembly for centrifugal pumps
07/14/1998US5779439 Centrifugal liquid pump with internal gas injection
07/09/1998DE19654834A1 Vorrichtung zur schonenden Förderung von ein- und mehrphasigen Fluiden Device for gentle transfer of single- and multiphase fluids
07/08/1998CN2285840Y Flexible sealed submersible pump without pump pipe
07/08/1998CN2285839Y Dual-volute double-outlet connection pipe built-in electric submersible pump
07/08/1998CN1186892A Waste water pump station
07/02/1998WO1998028544A1 Protective device for the power cable of a submerged pump
07/02/1998WO1998028543A2 Device for feeding single-phase and polyphase fluids
07/01/1998CN2285382Y Multi-cylinder submerged electric pump assembly with more than 300 KW power
06/1998
06/24/1998EP0849473A1 Centrifugal pump casing
06/24/1998EP0849007A2 Method and device for the withdrawal of media
06/24/1998CN1185544A Sealed electric-motor pump
06/23/1998US5769603 Submerged Pump
06/23/1998US5769069 Low flow-rate pump
06/17/1998EP0848173A1 Rotary fluid pump
06/16/1998US5767606 Synchronous electric motor, particularly for submersible pumps, and pump including the motor
06/10/1998EP0846365A1 Canned motor
06/10/1998EP0846364A1 Electric motor
06/10/1998CN2283745Y Floating multipurpose pump
06/09/1998US5763973 Composite barrier can for a magnetic coupling
06/09/1998US5762481 In-tank type fuel pump
06/04/1998DE19748866A1 Encapsulated electric motor powered pump
06/03/1998EP0844961A1 Cargo discharging pump
06/03/1998CN2283139Y Multifunctional submersible pump
05/1998
05/27/1998EP0844723A2 Electric motor driven pump
05/14/1998WO1997047884A3 Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor
05/14/1998DE19646617A1 Coolant pump with electrically commutated electric motor e.g. for IC engine
05/13/1998EP0840835A1 Improvements in deep well pumping apparatus
05/13/1998CN2281432Y Water pump with electric leakage alarm
05/06/1998EP0840013A1 Water pump, especially fire pump
05/06/1998EP0635101B1 Electrically driven high speed pump
05/06/1998CN2280786Y Pneumatic anchoring device for submersible electric-pump
05/05/1998US5746582 Through-tubing, retrievable downhole submersible electrical pump and method of using same
05/05/1998US5746575 Blood pump as centrifugal pump
04/1998
04/30/1998WO1998018190A1 Electric motor frame suitable for being coupled to a pump
04/30/1998WO1998017874A1 Aircraft fuel transfer pump with auxiliary fuel line scavenge pump
04/29/1998CN2280163Y Improved submerged pump
04/16/1998WO1998015738A1 Procedure for the starting up of pumps
04/09/1998WO1997049440A3 Magnetically suspended miniature fluid pump and method of making the same
04/01/1998EP0832357A1 Blood pump with disposable rotor assembly
04/01/1998CN2277461Y New delivery structure of submersible pump
03/1998
03/25/1998EP0830512A1 Low flow-rate pump
03/25/1998EP0707500B1 Centrifugal blood pump
03/25/1998CN2277001Y Multi-stage centrifugal liquid chlorine submersible pump with flexible shaft
03/25/1998CN1177064A Automatic sealing pipeless submerged pump
03/19/1998WO1998011650A1 Rotary pump and process to operate it
03/19/1998WO1998011347A1 Implantable electric axial-flow blood pump with blood-cooled bearing
03/18/1998EP0829644A2 Pump unit
03/18/1998CN2276576Y Compound corrosion resistance submerged pump
03/12/1998WO1998009718A1 Modular filtration system
03/11/1998CN2276086Y Pump body combined pipeline pump
03/11/1998CN1176026A Linear motor compressor and its application in cooling system
03/10/1998US5725357 Magnetically suspended type pump
03/04/1998CN2275653Y Improved submersible pump
02/1998
02/25/1998EP0825704A2 Highly heat-resistant electric motor