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)
01/1985
01/15/1985US4493610 Axial thrust balancing system
01/15/1985US4493609 Pumping apparatus
01/08/1985US4492532 Shaft pipe construction for regulating liquid delivery of submersible pumps
12/1984
12/19/1984EP0128446A1 Selectively controlled dual delivery pump, particularly for motor vehicle application
12/11/1984US4487548 Centrifugal main fuel pump having starting element
11/1984
11/13/1984CA1177938A1 Heavy duty electric pump control unit
10/1984
10/10/1984EP0121053A1 Axial thrust reducing device for pumps
09/1984
09/18/1984US4472107 Rotary fluid handling machine having reduced fluid leakage
09/12/1984EP0118403A1 Back flow preventing device in the outlet pipe of a pump
09/04/1984CA1173805A1 Compressor
06/1984
06/20/1984EP0110920A1 Device for the control of a fluid pressure of a turbomachine engine.
05/1984
05/02/1984EP0107234A1 Washing machine for linens or the like having a device for indicating the end of the emptying phase or for giving a warning of its malfunctioning
05/01/1984US4445821 Centrifugal pump having means for counterbalancing unbalanced fluid pressure radial forces on rotor
04/1984
04/17/1984CA1165624A1 Self-priming centrifugal pump, in particular for conveying liquids in the vicinity of their boiling point
04/04/1984EP0104209A1 Central heating circulation pump for alternating current and system comprising such a pump.
03/1984
03/20/1984US4437811 Submersible pump with alternate pump operation control means
03/13/1984US4436486 Circulating pump unit
03/07/1984EP0102334A1 Rotary fluid handling machine having reduced fluid leakage
02/1984
02/15/1984EP0100390A2 A method of driving the impeller of a liquid pump by means of a brushless A.C. motor, and a liquid pump for carrying out the method
12/1983
12/13/1983US4420289 System for successively producing hydraulic fluid flows at staggered values
12/08/1983WO1983004286A1 Method and device for the control of a fluid pressure of a turbomachine engine and support for a pressure pick-off
12/06/1983US4419050 Method and apparatus for controlling propeller pitch
11/1983
11/29/1983US4417849 Variable geometry centrifugal pump
11/16/1983EP0094075A2 Bearings for the rotor shaft of a vertical motor pump assembly
11/01/1983US4412790 Balanced supplemental water bleed for suction dredgers
10/1983
10/13/1983WO1983003461A1 Low power consumption heat conveyor agent circulation pump,parti cularly for heat pump heatings
10/11/1983US4408452 Pumping-up hydroelectric power plants
09/1983
09/13/1983US4403920 Device for regulating the output quantity of a compressed medium
08/1983
08/30/1983US4401412 Heavy duty electric pump control unit
08/02/1983US4396353 Submersible sump pump
08/02/1983US4396350 Pump isolation valve
07/1983
07/12/1983US4392777 Pump or blower, in particular for heating and air-conditioning systems
06/1983
06/28/1983US4390317 Self-priming centrifugal pump, in particular for conveying liquids in the vicinity of their boiling point
06/14/1983CA1148025A1 Actuating mechanism for fluid pump inlet closure valve
06/14/1983CA1148024A1 Fluid circulating pump
04/1983
04/26/1983CA1145202A1 Adjustable liquid level control for pumps
03/1983
03/29/1983US4378196 High-pressure centrifugal blower
03/08/1983US4375938 Roto-dynamic pump with a diffusion back flow recirculator
03/08/1983US4375937 Roto-dynamic pump with a backflow recirculator
01/1983
01/25/1983US4370102 Fluid pumping device
01/25/1983US4370098 Method and apparatus for monitoring and controlling on line dynamic operating conditions
12/1982
12/07/1982US4362463 Movable blade pump
12/07/1982US4362305 Pump sealing device
11/1982
11/02/1982US4357131 Detector for controlling the operation of a suction pump
10/1982
10/12/1982CA1133322A1 Constant flow centrifugal pump
09/1982
09/22/1982EP0060402A1 Safety installation for avoiding over-speed of the drive motor of the pump for the primary cooling medium in a water-cooled nuclear reactor
08/1982
08/24/1982US4345879 Hydraulic switch for a pump
08/24/1982CA1130138A1 Sump pump motor actuator
08/10/1982CA1129305A1 Low well yield control system and method
06/1982
06/30/1982EP0055012A1 Pump isolation valve
06/30/1982EP0054896A1 Water pump for an internal-combustion engine
06/15/1982US4334370 Method of transporting flowable media of changing consistencies
06/08/1982US4333827 Automatic engine shut down device and systems employing the same
06/08/1982CA1125144A1 Control for hydraulic accumulator system
06/08/1982CA1125092A1 Power conserving inducer
03/1982
03/16/1982US4320431 Fluid circulating pump
03/09/1982US4318667 Actuating mechanism for fluid pump inlet closure valve
03/09/1982CA1119695A1 Control system for controlling a plant including a mobile suction device for sucking suspendible material
03/02/1982CA1119143A1 Aircraft spraying system and method
02/1982
02/10/1982EP0045483A2 Self-priming rotary pump, particularly for bringing liquids to their boiling point
02/02/1982CA1117409A1 Deep well pumping system
01/1982
01/19/1982US4311438 Method and apparatus for controlling the start of an intermittently operating pump
01/05/1982CA1115599A1 Automatic control system for centrifugal pumps
12/1981
12/30/1981EP0042774A1 Arrangement for obtaining hydraulic fluid quantities of successively graded values
11/1981
11/25/1981EP0040595A2 Rotary fire pump
11/25/1981EP0040594A2 Fire pump
10/1981
10/27/1981CA1111312A1 Turbine pump
09/1981
09/22/1981US4290153 Method and apparatus for generating a controlled current flow and waves in a water pool
09/15/1981US4289457 Combination sea valve and deballast pump
07/1981
07/28/1981US4280788 Multistage hydraulic machine system and a method for controlling the operation thereof
07/14/1981US4278403 Control for hydraulic accumulator system
07/14/1981US4278402 Adjustable liquid level control for pumps
07/14/1981US4278365 Control system for controlling a plant including a mobile suction device for sucking suspendible material
07/14/1981US4278051 Method of preventing recirculation pump cavitation and forced recirculation pump type steam-generating apparatus using the method
06/1981
06/30/1981US4275995 Bilge pump
03/1981
03/24/1981US4257745 Automatic control system for centrifugal pumps
03/10/1981US4255078 Method of controlling operation of multistage hydraulic machines
12/1980
12/30/1980CA1092686A1 Method and control system for controlling a suspended implement on variations of the position of the implement in relation to a suspension point
12/23/1980US4240370 Propulsion system for hydrofoil, planing and semi-planing sea-going vessels
12/10/1980EP0019743A1 Central-heating system circulation pump controlled in dependence upon temperature
11/1980
11/18/1980US4234290 Turbine pump
11/11/1980CA1089322A1 Sewage pump assembly
10/1980
10/14/1980US4228427 Monitor apparatus for sump pumps
09/1980
09/23/1980CA1086137A1 Jet flap controlled fuel pump
09/16/1980US4222711 Sump pump control system
08/1980
08/05/1980US4215975 Sump pump with air column therein when pump is not operating
07/1980
07/22/1980US4213735 Constant flow centrifugal pump
07/22/1980CA1082057A1 Boiler feed water pump control systems
06/1980
06/24/1980CA1080321A1 Temperature and failure indicating probe for a bearing
06/17/1980US4208171 Hydrodynamic pump units and regulators therefor
05/1980
05/27/1980US4204801 Sewage pump assembly
05/14/1980EP0010557A1 Apparatus for safeguarding transport of a suspension of dredging spoil and water
05/06/1980CA1076884A1 Variable performance pump
04/1980
04/30/1980EP0010464A1 Method and device for starting a cryogenic-liquid pump
04/29/1980CA1076418A1 Pump-motor assemblage for circulating a coolant
04/02/1980EP0009428A1 Automatic control system for centrifugal pumps
03/1980
03/25/1980US4194870 Slam prevention in liquid pumping
03/25/1980US4194360 Power take-off arrangements
03/18/1980CA1073743A1 Clutch connected multi-stage impeller pump
02/1980
02/26/1980CA1072398A1 Device for controlling the flow and rate of flow of hydraulic fluid, and installation of same in a dual circulating pump
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