Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04D - Non-positive-displacement pumps › F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems
Patents for F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems (4,967)
11/1997
11/20/1997DE3844960C2 Diagnostic connector for electrically driven pump
11/13/1997WO1997042414A1 Electromagnetically suspended and rotated centrifugal pumping apparatus and method
11/13/1997WO1997042413A1 Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
11/13/1997DE19618498A1 Arrangement for monitoring pump in dishwasher etc.
11/13/1997DE19618462A1 Extrinsic power parameter determination method for energy conversion appliance
11/13/1997CA2253666A1 Electromagnetically suspended and rotated centrifugal pumping apparatus and method
11/12/1997EP0805927A1 Improved automatic recirculation valve
11/11/1997US5685700 Bearing and seal-free blood pump
11/06/1997DE19654892A1 Immersion pump with electronic level supervision arrangement
10/1997
10/22/1997EP0802610A2 High temperature motor pump and method for operating thereof
10/14/1997US5676528 Motor pump family with single stage and multiple stage impellers
10/07/1997US5674056 Motor pump assembly
10/07/1997US5673732 Variable speed pump-motor assembly for fuel dispensing system
10/01/1997EP0797736A1 Pump case
10/01/1997CN1161078A Peripheral pump, in particular for feeding fuel from the tank to internal combustion engine of a motor vehicle
09/1997
09/30/1997US5672050 Apparatus and method for monitoring a sump pump
09/24/1997EP0797006A2 Pump connecting element
09/23/1997US5669877 Systems and methods for automated testing of medical equipment
09/18/1997DE19609821A1 Spray-washer handling workpiece prior to varnish or coating routines
09/16/1997US5667362 Pump system and method for operating the same
09/10/1997EP0794333A1 Pilot by-pass valve for liquid pumps
09/04/1997WO1997032131A1 Coolant pump for automotive use___________________________________________________________________________________________________
09/03/1997CN1158387A Method to control out pumping from sewage pump station
08/1997
08/28/1997DE19606370A1 Prevention of overheating of permanently filled whirlpool bathtub
08/14/1997DE19605132A1 Establishment of wireless link between hand-held control and units
08/12/1997US5655888 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve
07/1997
07/30/1997EP0474749B1 Low pressure recirculation valve
07/22/1997US5649449 Method and apparatus for determining the instantaneous operation conditions of a centrifugal pump
07/17/1997DE19600776A1 Fire extinguishing pump system
07/17/1997DE19600640A1 Sensor for determining speed of motor esp. driving centrifugal pump
07/16/1997EP0783632A1 Peripheral pump, in particular for feeding fuel from the tank to the internal combustion engine of a motor vehicle
07/10/1997WO1997024596A1 Method and apparatus for determining physical variables of a slurry or liquid
07/10/1997WO1997024532A1 Pump assembly
06/1997
06/25/1997EP0780578A1 Pump
06/04/1997EP0746715A4 Method and apparatus for monitoring recirculation control system performance
06/03/1997US5634772 System for controlling operation of turbo type fluid machinery
06/03/1997US5634740 Large-depth underground drainage facility and method of running same
05/1997
05/28/1997EP0775827A2 A method to control out pumping from a sewage pump station
05/25/1997CA2190809A1 Method to control out pumping from a sewage pump station
05/21/1997EP0774583A1 Casing for a centrifugal pump
05/14/1997EP0668968B1 Apparatus for pumping a slurry
04/1997
04/29/1997US5624226 Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump
04/29/1997US5624058 Apparatus for pumping a slurry
04/24/1997WO1997014889A1 Output regulation with load sensing
04/24/1997DE19538649A1 Leistungsregelung mit Load-Sensing Power control with load sensing
04/23/1997EP0769624A1 Method and apparatus for load balancing among multiple compressors
04/22/1997US5622477 Switch for bilge and sump/pump with automatic float control
04/21/1997CA2184130A1 Method and apparatus for load balancing among multiple compressors
04/18/1997CA2186797A1 Dishwasher having a wash liquid recirculation system
04/17/1997DE19539395A1 Electrically driven liquid pump e.g. for wet cleaning machine
04/01/1997US5615996 Method for prediction of the performance of a centrifugal pump with a thrust balance mechanism
04/01/1997US5615987 Worm conveyor for bulk material
03/1997
03/12/1997EP0619001B1 Centrifugal pump with adaptor for various valves
03/11/1997US5610958 Reactor circulating pump system
03/06/1997WO1997008459A1 An improved electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores
03/06/1997DE19635044A1 Coolant temperature control system for car
03/05/1997EP0592538B1 Recirculation valve
02/1997
02/27/1997DE19634180A1 Blood pump control method e.g. for artificial heart-lungs system
02/20/1997WO1997006433A1 Method of detecting characteristics of liquids in pipes and pump controlling
02/18/1997US5603587 Drainage water pumping station and method for operating the same
02/13/1997WO1997005393A1 Peripheral pump, in particular for feeding fuel from the tank to the internal combustion engine of a motor vehicle
02/11/1997US5601398 Fuel pump including axially movable end covers for feeding fuel from a supply tank to an internal engine
02/11/1997US5601111 Method for automatically circulating and then halting circulation of wastewater in a wastewater pump station, and a valving device therefore
02/06/1997DE19528181A1 Peripheralpumpe, insbesondere zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges Peripheral pump, especially for feeding fuel from a storage tank to the internal combustion engine of a motor vehicle
02/04/1997US5599163 Regenerative pump having movable walls adjacent opposing faces of the impeller
01/1997
01/29/1997EP0668969B1 Sludger
01/15/1997EP0753692A1 Control system for controlling minimum flow througput and check valve
01/02/1997EP0751355A1 Transport mechanism for the cyclic transporting of the cooled down content of a pipe in a hot water distribution system
12/1996
12/27/1996EP0750116A1 Control method for displacement-type fluid machine, and apparatus thereof
12/24/1996US5586862 Centrifugal pump having a slidable gate
12/11/1996EP0746715A1 Method and apparatus for monitoring recirculation control system performance
12/11/1996EP0746684A1 Soft-start pump control system
12/10/1996US5582505 For pumping a highly viscous fluid
12/03/1996US5580221 Motor drive circuit for pressure control of a pumping system
11/1996
11/28/1996DE19622286A1 Domestic electric water-pump
11/27/1996CN1136642A Full circumference flow pump group and its producing method
11/26/1996US5577880 Assembly for feeding fuel out of a supply tank to the internal combustion engine of a motor vehicle
11/19/1996US5576582 Automatic pump control
11/05/1996US5570998 Impeller structure of closed type centrifugal pump
10/1996
10/30/1996EP0740075A1 Screw pump
10/15/1996US5564914 Fluid machine with induction motor
10/10/1996DE19613388A1 Magnetically located type of pump esp. magnetic suspension pump
10/10/1996DE19611075A1 Pump pressure head regulator e.g. for heating system
10/08/1996US5563490 Pump system with liquid cooling operation
10/08/1996US5562423 Automatic float control switch for a bilge and sump pump
10/08/1996US5562422 Liquid level control assembly for pumps
10/02/1996EP0735273A1 Twin pump with main control system
10/02/1996DE19511636A1 Rotary or centrifugal pump of canned motor type for chemical industry,
09/1996
09/24/1996US5558502 Turbo pump and supply system with the pump
09/04/1996CN1130417A Pump-protecting valve
09/03/1996US5551837 Apparatus for regulating the transport flow of a liquid that is circulated by a centrifugal pump in a closed pipe system
08/1996
08/29/1996DE19507010A1 Electrical immersion motor pump with float switch
08/28/1996EP0728949A1 Group of full-circumferential-flow pumps and method of manufacturing the same
08/28/1996CN1129929A Transporting and metering particulate material
08/27/1996US5549131 Automatic recirculation valve
08/22/1996DE19505543A1 Centrifugal pump with sensor for speed of rotation detection
08/14/1996EP0726396A1 Method for fixing the output performance limits of electrically driven central heating circulation pumps
08/14/1996EP0725752A1 Transporting and metering particulate material
08/13/1996US5545012 Soft-start pump control system
08/01/1996WO1996023155A1 Improved automatic recirculation valve
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