Patents
Patents for F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems (4,967)
05/2004
05/06/2004WO2004038228A1 Improvements in bilge removal
05/06/2004EP1416163A2 Centrifugal pump with self cleaning bearing surface
05/06/2004EP1415672A2 Pressure sensor
05/05/2004CN1493788A Method of controlling several pumps and pump corresponding to said method
05/04/2004US6729848 Sensor mount for sump draining apparatus
05/04/2004US6729847 Bilge pump seal and float actuator
04/2004
04/29/2004WO2004001515A9 Speed and fluid flow controller
04/28/2004EP1413769A1 Pump with connection line to measuring points
04/28/2004EP1413768A1 Pump with sensor in pump casing
04/28/2004EP1212534B1 Monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor
04/27/2004US6725813 Temperature-controlled variable speed water pump
04/22/2004DE10247424A1 Adjustable vane wheel for pump has induction channel directly in front of it able to be closed and/or throttled by blocking device
04/21/2004EP1411250A1 Bidirectional hydraulic pump
04/20/2004US6722854 Canned pump with ultrasonic bubble detector
04/15/2004US20040071554 Method for controlling several pumps
04/15/2004US20040071547 Bidirectional hydraulic pump
04/13/2004US6719525 Submerged motor vane wheel rotation direction control structure
04/08/2004DE20218579U1 Device for operating of cooling lubricant pump has time controller integrated in housing installed on pump and provided with multipole connector for connecting of power supply on pump
04/08/2004DE10234630A1 Verfahren zur Bestimmung der Durchflussmenge eines Fluids durch eine Pumpe Method for determining the flow rate of a fluid through a pump
04/07/2004EP1406017A1 Centrifugal pump
04/07/2004EP1404950A1 Cooling system for a motor vehicle engine
04/07/2004EP1404208A1 Dishwasher comprising spraying arms and a circulating pump
04/07/2004CN2610126Y Midium-pressure frequency control of motor speed control device for submersible electric pump
04/06/2004US6717383 Fountain control for generating dynamically changing flow patterns
04/06/2004US6715996 Method for the operation of a centrifugal pump
04/06/2004US6715471 Electric fuel pump
04/01/2004US20040064292 Control system for centrifugal pumps
04/01/2004US20040064012 Blood pump system
04/01/2004US20040062658 Control system for progressing cavity pumps
04/01/2004US20040062657 Rod pump control system including parameter estimator
03/2004
03/31/2004EP1403522A1 Liquid level gauge calibration means
03/31/2004EP1403521A1 Pump having one inlet and two outlets
03/31/2004EP1402907A1 Blood pump system
03/31/2004EP0978657B1 Fluid machinery
03/30/2004US6711943 Method for the determination of the viscosity of a liquid such as blood
03/30/2004CA2230691C An improved electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores
03/25/2004US20040057851 Pump with selectable suction ports
03/25/2004US20040055363 Speed and fluid flow controller
03/24/2004CN2607459Y Piston-type multifunction water pump controlling valve
03/23/2004US6709241 Apparatus and method for controlling a pump system
03/23/2004US6709240 Method and apparatus of detecting low flow/cavitation in a centrifugal pump
03/23/2004US6708899 Headlamp cleaner and injection control method
03/18/2004WO2004011811A9 Mix-in structure for gas or the like in pressurization centrifugal pump
03/18/2004WO2004001515A3 Speed and fluid flow controller
03/18/2004DE10331602A1 Tauchmotorpumpe mit Frostschutzeinrichtung Submersible pump with frost protection device
03/11/2004WO2004020835A1 Submersible motor-driven pump with an anti-frost device
03/11/2004US20040047737 Methods and apparatus for controlling a continuous flow rotary blood pump
03/11/2004US20040047736 Methods and apparatus for controlling a continuous flow rotary blood pump
03/11/2004CA2497056A1 Submersible motor-driven pump with an anti-freeze device
03/04/2004WO2003095277B1 Cleaning system for headlamps of motor vehicles
03/03/2004CN2605402Y Automatic constant-pressure water pump
02/2004
02/26/2004US20040037721 Pump stabilizer and method
02/25/2004EP1391612A1 Method for controlling several pumps
02/25/2004EP0901574B1 Submerged motor pump
02/25/2004CN1139726C Performance regulating device for fluid machinery
02/19/2004DE20220714U1 Tauchpumpenanordnung mit einem Schwimmerschalter Submersible pump assembly with a float switch
02/12/2004US20040026075 System and method of pressure distribution and pressure regulation for heating and air-conditioning units, and a very high-rise building utilizing the same
02/11/2004EP1387959A2 Fluid controlled pumping system and method
02/10/2004US6688320 Utility conservation control methodology within a fluid pumping system
02/05/2004WO2004011811A1 Mix-in structure for gas or the like in pressurization centrifugal pump
02/05/2004WO2004011810A1 Condition monitoring of pumps and pump system
02/05/2004US20040022640 Method for calibrating a pressure sensor or a flow sensor at a rotary pump
02/05/2004DE10228673A1 Back pressure regulator in the bypass channel of a pump system, e.g. for water, has a guide bush for a sliding piston-shaped closure body with a spring and two sets of jet openings for a minimum discharge volume
02/05/2004CA2493419A1 Mix-in structure for gas or the like in pressurization centrifugal pump
02/04/2004EP1387087A2 Method for determining the flow rate in a pump
02/04/2004EP1387086A1 Centrifugal pump
02/04/2004EP1386387A1 Downhole torque generator
02/04/2004EP1386386A1 Downhole torque-generating and generator combination apparatus
02/04/2004EP1171944B1 Rotor device
02/04/2004CN2602197Y Pumping station liquid level timing automatic control bench
02/04/2004CN2602196Y 高压水路控制装置 High pressure water control device
02/03/2004US6685621 Implantable heart assist system and method of applying same
02/03/2004US6685446 Monodirectional impeller with flexible vanes
01/2004
01/29/2004US20040019251 Implantable heart assist system and method of applying same
01/29/2004US20040018094 Bilge pump seal and float actuator
01/28/2004EP1384892A1 Flow regulator for water pump
01/22/2004WO2004007923A1 Device for driving a coolant pump
01/22/2004US20040013222 Measurement system of torsion vibration for reactor internal pump
01/22/2004DE10232138A1 Vorrichtung zum Antrieb einer Kühlmittelpumpe Device for driving a coolant pump
01/21/2004CN2600624Y Protection device for water pump of position water supply boiler
01/21/2004CN1469048A Controllable bidirectioal pressurizing water pump
01/21/2004CN1135302C Device for regulating pumping capacity of vertical axis constent speed centrifugal pump
01/20/2004US6679685 Method and device for discharging viscous fluids
01/14/2004CN2599288Y Screw pump for well head suffocating-proof gate
01/13/2004US6678620 Method for promoting energy saving in fluid machinery
01/13/2004US6676383 Method and a pump apparatus for the generation of an adjustable, substantially constant volume flow of a fluid and a use of this method
01/02/2004EP1375917A2 Electric pump
12/2003
12/31/2003WO2004001515A2 Speed and fluid flow controller
12/31/2003WO2004001226A2 Pump stabilizer and method
12/31/2003CN1133010C 流体机械 Fluid Machinery
12/30/2003US6671657 Method for calculating characteristic curve of centrifugal fluid machine by computer
12/30/2003US6669448 Pump control method and apparatus
12/30/2003US6669439 Variable flow impeller-type water pump with movable shroud
12/30/2003US6669110 Washer system having single tank for storing cleaning liquid
12/25/2003US20030235492 Controlling multiple pumps operating in parallel or series
12/24/2003CN2594502Y Stepless output volume regulator of pressure pump
12/23/2003CA2124907C Water-sensing alarm for water control systems
12/17/2003EP1208630B1 Device for delivering single-phase or multiphase fluids without altering the properties thereof
12/17/2003CN2592908Y Fully-automatic water-supply-drain protection controller for water pump
12/17/2003CN1462343A Method for controlling assist pump for fluid delivery system with pulsatile pressure
1 ... 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ... 50