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)
02/2000
02/24/2000DE19927365A1 Method of liquid level control employs integral immersion pumps and sensors, avoiding costly remote control gear and requiring only single power supply cable
02/17/2000WO2000008746A1 Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving a hydraulic pump
02/17/2000DE19836625A1 Kreiselpumpe mit Rückschlagventil Centrifugal pump with check valve
02/17/2000CA2305457A1 Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving a hydraulic pump
02/16/2000EP0979950A1 Centrifugal pump with check-valve
02/09/2000EP0978657A1 Fluid machinery
01/2000
01/20/2000WO2000003142A1 Frequency converter assembly
01/20/2000DE19832193A1 Water-cooled internal combustion engine delivery damper comprises deformable damping element on downstream side of pump housing plus runoff channel returning to intake.
01/20/2000DE19831997A1 Verfahren zur Regelung des Drucks eines Fluids Method for regulating the pressure of a fluid
01/19/2000EP0973082A1 Method for controlling a fluid pressure
01/05/2000EP0968358A1 Pulse width modulated low pressure fuel control
12/1999
12/29/1999EP0967475A1 Method for the determination of the viscosity of a liquid
12/21/1999US6004096 Hydro-surge bowl valve
12/15/1999EP0964157A1 Well pump with integrated pressure switch
12/09/1999DE19830416C1 Pump with float-actuated automatic cut-off, esp. for removing water from cellars, etc.
12/02/1999DE19823603A1 System for controlling coolant temperature of internal combustion engine of motor vehicle
11/1999
11/30/1999US5993422 Device for dosing medicinal fluids
11/30/1999US5993176 Magnetically-driven centrifugal pump
11/23/1999US5988976 Scroll, for a fluid-working device
11/18/1999WO1999058856A1 Control system for multi-pump operation
11/16/1999US5984644 Dual output window washer pump for an automotive vehicle
11/16/1999US5983922 Instantaneous hot-water delivery system
11/09/1999US5980200 Peripheral pump, in particular for feeding fuel from feed tank to internal combustion engine of motor vehicle
11/03/1999EP0953773A1 A pump for liquids, in particular for the cooling circuit of an internal combustion engine
11/02/1999US5975866 Tie-off member for pedestal sump pumps
11/02/1999US5975842 Sensor arrangement
10/1999
10/26/1999US5971687 Fuel pump and method of manufacturing the same
10/19/1999US5967744 Centrifugal pump having anti-clogging backflow prevention gate
10/14/1999WO1999051883A1 Diagnosing system for fluid machinery
10/07/1999DE19812784A1 Pumpe mit integrierter Leistungsregelung Pump with integrated power control
10/06/1999EP0947703A1 Submersible motorpump unit with control system mounted on the motor housing
10/06/1999EP0947702A1 Submersible motorpump set with signals generator
10/05/1999US5961292 Ripple-effect removing valve for use with a pressure detecting device in a control assembly of a pump
10/05/1999US5960886 Deep well pumping apparatus
10/05/1999US5960857 System temperature control tank with integral modulator valve and flowmeter
09/1999
09/29/1999EP0945620A2 Pump with integrated power control
09/29/1999CN1230243A Self-priming type centrifugal pump
09/28/1999US5957668 Brake actuation means for a rotary pump system
09/16/1999DE19809123A1 Wasserpumpe für den Kühlkreislauf einer Brennkraftmaschine Water pump for the cooling circuit of an internal combustion engine
09/14/1999US5951244 Impeller clearance adjustment system
09/10/1999WO1999045276A1 Variable speed control fluid machinery unit
09/10/1999WO1999045273A1 Performance regulating device for fluid machinery
09/10/1999CA2249640A1 Sump pump with integrated water sensor alarm
09/08/1999EP0940565A2 Water pump for the cooling circuit of an internal combustion engine
09/08/1999EP0856107B1 Output regulation with load sensing
09/08/1999CN1228140A Electromagnetically suspended and rotated centrifugal pumping apparatus and method
08/1999
08/31/1999US5945802 Ground fault detection and protection method for a variable speed ac electric motor
08/31/1999US5944489 Rotary fluid pump
08/25/1999CN2334923Y High/low pressure pumping automatic switching device for concrete delivering pump
08/24/1999US5941813 Cardiac assist device
08/24/1999US5941275 Pump for periodic conveyance of the cooled-down water content of a hot water distribution line
08/18/1999EP0936577A1 Method and system for checking the proper functioning of an apparatus by comparison with the functioning of another apparatus
08/18/1999CN1226307A Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
08/17/1999US5938412 Blood pump having rotor with internal bore for fluid flow
08/12/1999WO1999040322A1 Fluid machinery
08/10/1999US5934872 Washer pump for selectively supplying wash fluid to two areas
08/10/1999US5934508 For motor vehicles
08/04/1999EP0933533A1 Centrifugal pump with butterfly valves
08/04/1999EP0932441A1 Method for operating a cross-flow filtration installation and installation for carrying out said method
07/1999
07/21/1999CN1223343A 水位控制器 Water Level Controller
07/20/1999US5925825 For use in a liquid pumping system
07/20/1999US5924848 Blood pump having radial vanes with enclosed magnetic drive components
07/20/1999US5924432 Dishwasher having a wash liquid recirculation system
07/01/1999WO1999032771A1 Pulse width modulated low pressure fuel control
06/1999
06/24/1999DE19757741A1 Pump motor
06/23/1999EP0924435A1 Dual output window washer pump for an automotive vehicle
06/17/1999DE19753457A1 Pumpenanordnung für Flüssigkeitsbehälter Pump assembly for liquid containers
06/15/1999US5911558 Magnetically suspended pump having position sensing control
06/10/1999WO1999028632A1 Pump arrangement for liquid tanks
06/10/1999WO1999027836A1 Dishwasher capable of jetting and discharging water stored in a sump case using a single motor
06/10/1999CA2313052A1 Pump arrangement for liquid tanks
06/09/1999EP0921284A2 Improvements relating to the liquid cooled I.C. engines
06/09/1999EP0920591A1 Electronic control method for drain pumps used in electrical home appliances
06/09/1999CN1219220A Water submersible motor pump
06/09/1999CN1218871A Improvements relating to liquid cooled I. C. engines
06/08/1999US5909982 Large-depth underground drainage facility and method of running same
06/03/1999CA2254822A1 Improvements relating to the liquid cooled i.c. engines
06/02/1999EP0919727A1 Centrifugal motorpump
06/01/1999US5909069 Fully integrated magnetic micromotors and methods for their fabrication
05/1999
05/27/1999DE19752372A1 Controlled rotary pump, especially for internal combustion engines
05/20/1999DE19750266A1 Operating method
05/19/1999EP0916048A1 Pump protection fitting
05/12/1999EP0915348A2 Ground fault detection and protection method for a variable speed ac electric motor
05/12/1999EP0915237A2 Cooling system for an internal combustion engine
05/06/1999EP0805927A4 Improved automatic recirculation valve
04/1999
04/14/1999EP0907830A1 Bilge pump
03/1999
03/31/1999EP0904491A2 Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor
03/31/1999CN2312351Y Full automatic control device for pumping water
03/30/1999US5888051 Pump pressure control system
03/24/1999EP0903498A1 Submersible pump and method of control therefor
03/24/1999EP0903497A1 Submersible effluent pump
03/18/1999DE19754751C1 Circulation flow generation device for pumping station
03/17/1999EP0902185A1 Control of a submersible electric pump in response to the level of water
03/17/1999EP0901574A1 Submerged motor pump
03/16/1999US5883489 High speed deep well pump for residential use
03/16/1999US5882182 High-temperature motor pump and method for operating thereof
03/11/1999DE19840399A1 Centrifugal blood pump unit for extracorporal blood circulation
03/05/1999CA2246826A1 Centrifugal fluid pump assembly
02/1999
02/24/1999EP0898080A2 Electric bilge pump assembly
02/24/1999EP0897477A1 Electromagnetically suspended and rotated centrifugal pumping apparatus and method
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