Patents
Patents for F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems (4,967)
05/2005
05/24/2005US6896199 Washing apparatus for multiple vehicle surfaces
05/19/2005US20050106040 Thermal control of flowrate in engine coolant system
05/19/2005US20050103033 Pump pressure limiting method
05/19/2005DE102004009046B3 Operating condition diagnosis method for synchronous pump e.g. circulation pump in dishwashing machine, using evaluation of phase shift between voltage and current of pump motor
05/12/2005US20050100460 Check valve for a submersible turbine pump
05/12/2005US20050100459 Yoke assembly for a submersible turbine pump that pumps fuel from an underground storage tank
05/12/2005DE10116339B4 Verfahren zum Betreiben einer Zentrifugalpumpe A method of operating a centrifugal pump
05/11/2005EP1529961A1 Motor pump unit with axially shiftable rotor
05/11/2005CN2699016Y Multifunctional water pump
05/11/2005CN1201087C Autonomous inverter driving hydraulic unit
05/06/2005WO2005040616A1 Water-lifting pump device and operation control method for the same
05/05/2005US20050095150 Centrifugal multistage pump
05/04/2005CN2697353Y Pneumatic condensed liquid recovery pump
05/03/2005US6887046 Coolant pump, mainly for automotive use
04/2005
04/28/2005WO2005038265A1 Spring loaded submersible turbine pump
04/28/2005WO2005038264A1 Yoke assembly for a submersible turbine pump that pumps fuel from an underground storage tank
04/28/2005WO2005038262A1 Check valve for a submersible turbine pump
04/28/2005WO2005038261A1 Integral contractors box for a submersible turbine pump
04/28/2005WO2002086318A3 Determining cavitation and seal degradation in pumps
04/27/2005CN1609452A Water lever stablizing apparatus for self-priming fixed fire fighting pump set
04/21/2005WO2005035433A1 Siphon system for a submersible turbine pump that pumps fuel from an underground storage tank
04/21/2005US20050084384 Smart fan and pump controller
04/20/2005EP1524760A1 Electronic device for controlling a discharge pump driven by a synchronous electric motor with a permanent-magnet rotor
04/20/2005CN2693996Y Pump casing of pipeline booster pump
04/14/2005US20050079076 Spring loaded submersible turbine pump
04/14/2005US20050079075 Integral contractors box for a submersible turbine pump
04/14/2005US20050076957 Siphon system for a submersible turbine pump that pumps fuel from an underground storage tank
04/13/2005EP1522734A1 Method to operate a lifting equipment to pump contaminated liquids, in particular cooling lubricant
04/13/2005EP1521904A1 Device for driving a coolant pump
04/12/2005US6877947 Method and apparatus for early fault detection in centrifugal pumps
04/06/2005CN2690631Y Controllable intermittent pump pressure device
04/05/2005US6876715 Measurement system of torsion vibration for reactor internal pump
04/05/2005CA2170272C Transporting and metering particulate material
03/2005
03/31/2005WO2005019655A3 Electronic control device for a synchronous pump
03/30/2005EP1012477B1 Bearing and seal-free blood pump
03/30/2005CN2688904Y Diesel engine rotating-speed controller of concrete conveying pump
03/30/2005CN1601049A Automatic downlink system
03/24/2005US20050061268 a pump/valve assembly and a cooling circuit containing such an assembly. An assembly forming part of a circuit for circulating a liquid fluid and comprising a pump and at least one valve unit with proportional control, in which the valve is mounted in series
03/23/2005CN2687382Y Discharging amount reduction and vacuum auto-protection device for submersible pump
03/17/2005WO2005024240A2 Method and device for determining the hydraulic flow rate in a pump
03/17/2005US20050058555 Variable input speed to water pump
03/17/2005US20050058549 Dual pressure on demand automotive fuel pump
03/17/2005US20050056465 Automatic downlink system
03/17/2005DE10118525B4 Vorrichtung zum Absaugen von Kühlschmierstoff aus einem Sammelbecken Device for sucking coolant from a reservoir
03/17/2005CA2743617A1 Automatic downlink system
03/16/2005EP1171714B1 Apparatus and method for controlling a pump system
03/16/2005CN1594887A Water self-priming apparatus for water pumps
03/09/2005EP1512949A1 Method and device for determining the hydraulic flow rate in a pump
03/03/2005WO2005019655A2 Electronic control device for a synchronous pump
03/03/2005WO2005019649A1 Immersion pump equipped with a float control device
03/03/2005US20050047921 Pumping system for contolling pumping speed during discharge pressure fluctuations
03/03/2005DE10336498A1 Verfahren zur Geräuschreduzierung eines Maschinensatzes A method of noise reduction of machine set
03/02/2005EP1510698A2 Device for protecting a pump against dry running
03/02/2005EP1509431A1 Washing apparatus for multiple vehicle surface
03/02/2005CN1191426C Turbomachine
02/2005
02/23/2005CN1190594C Miniature submerged pump with level inlet regulator
02/16/2005EP1506109A1 Cleaning system for headlamps of motor vehicles
02/10/2005US20050031455 Device for controlling the actuating shaft of means for recirculating a cooling fluid in vehicle engines
02/10/2005DE4136348B4 Pumpe Pump
02/09/2005EP1505303A1 Procedure for noise reduction for a machine group
02/09/2005CN2677671Y Liquid level or pressure detector of intelligent start controlled for water pump
02/09/2005CN1576608A Adjustable flow peripheral pump
02/03/2005DE10331578A1 Waste water pump system comprises several pump units which are connected in series, incorporate identical threephase motors, and operate at specified relative power levels
02/02/2005CN1187525C 恒压供水控制系统 Water supply system
01/2005
01/27/2005US20050019183 Pump
01/27/2005US20050019167 Method and controlling an assist pump for fluid delivery systems with pulsatile pressure
01/27/2005DE20221071U1 Submersible pump has a float switch and a cable holder, which allows the cable to be hung at a variety of height levels
01/26/2005EP1500863A2 Pump
01/26/2005CN2674159Y Means for monitoring water pump
01/26/2005CN1571888A Pump control system
01/20/2005WO2004059170A3 Improved centrifugal pump performance degradation detection
01/13/2005US20050008496 Centrifugal fluid pump apparatus
01/12/2005EP1496340A1 Thermal flowmeter and method therefor
01/12/2005EP1495773A2 Centrifugal fluid pump apparatus
01/11/2005US6840735 Centrifugal fluid pump apparatus
01/05/2005EP1493927A1 Control system interface for electrical machine
12/2004
12/30/2004US20040265122 Centrifugal pump with reverse rotation protection integrated on the impeller blade
12/29/2004EP1490600A1 Centrifugal pump with reverse rotation protection integrated on the impeller blade
12/28/2004CA2353164C Rf communication with downhole equipment
12/22/2004EP1488108A1 Self-regulating water pump
12/22/2004CN1181266C Axial-flow self-balancing air oil mixed transfer pump and control system thereof
12/22/2004CN1181265C Axial-flow air oil mixed transfer pump and control system thereof
12/15/2004CN2663548Y Negative pressure gathering tank
12/15/2004CN1554870A Power system of oil-submersible screw pump
12/09/2004US20040247448 Pump pressure limiting engine speed control and related engine and sprinkler system
12/09/2004US20040247446 Pump control system
12/09/2004DE10323377A1 Liquid manure spreader, comprising electronically controlled pump for distribution in relation to speed of agricultural vehicle
12/08/2004EP1484506A1 Regenerative pump control
12/08/2004CN1179134C Method for regulating pump transport volume
12/08/2004CN1178704C Measure apparatus for medical liquid
12/02/2004WO2004104423A1 Pressure relief arrangement for a pump
12/02/2004US20040237912 Electric coolant pump having an integrated valve, and method for controlling said valve
11/2004
11/30/2004US6824354 Pump with selectable suction ports
11/25/2004US20040236173 Implantable heart assist system and method of applying same
11/25/2004US20040234375 Sump draining apparatus having easily replaceable sensor and mount therefor
11/24/2004EP1404950B1 Cooling system for a motor vehicle engine
11/24/2004EP1020020B1 Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving a hydraulic pump
11/18/2004US20040230384 Electric fuel pump condition monitor system using electrical signature analysis
11/18/2004US20040228970 Method and device for discharging fluid
11/17/2004EP1476645A1 Electric coolant pump having an integrated valve, and method for controlling said valve
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