Patents
Patents for F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems (4,967)
11/2002
11/13/2002CN1379541A Operating method of centrifugal pump
11/13/2002CN1094178C 泵组合体 Pump fit
11/13/2002CN1094176C 垂直轴离心泵供水量的调节装置 The vertical axis centrifugal water supply adjusting device
11/07/2002DE10214819A1 Circulating pump for circulating water from swimming pool across solar collector and back in to swimming pool which has housing with pump inlet and outlet also further suction side housing opening which is tightly sealed by sealing part
11/07/2002DE10123139A1 Verfahren zur Regelung einer Unterstützungspumpe für Fluidfördersysteme mit pulsatilem Druck A method for controlling an assist pump for fluid delivery systems with pulsatile pressure
11/06/2002EP1255174A1 Electric Pump with automatic on-off device
11/05/2002US6475180 Drug pump systems and methods
11/05/2002US6474952 Sump pump motor switch assembly
11/05/2002US6474951 Controller for pump and valve
10/2002
10/31/2002WO2002086322A2 Fluid controlled pumping system and method
10/31/2002WO2002086318A2 Determining cavitation and seal degradation in pumps
10/31/2002CA2441307A1 Fluid controlled pumping system and method
10/30/2002EP1252448A1 Centrifugal pump with multiple inlets
10/24/2002WO2002084117A2 Speed variable feed pump
10/24/2002US20020155003 Fluid controlled pumping system and method
10/24/2002US20020152807 Method and system for determining pump cavitation and estimating degradation in mechanical seals therefrom
10/24/2002DE10142263C1 Variable cooling medium pump for IC engine, has exit flow openings for cooling medium selectively covered via separately operated slider within pump housing
10/24/2002DE10118525A1 Device for removing cooling lubricant from a storage reservoir comprises a pump and a regulating device having a pressure sensor and an electrical or electronic control device controlling pump operation as a function of pressure
10/24/2002DE10035458C2 Kombi-Meßfühler Combined sensor
10/22/2002US6468042 Method for regulating a delivery variable of a pump
10/22/2002US6468041 Magnetically levitated apparatus
10/17/2002US20020151761 Implantable heart assist system and method of applying same
10/17/2002US20020150482 Reversible volume oil pump
10/17/2002DE10116339A1 Centrifugal pump driving method involves ascertaining and comparing electrical power with control quantity formed as function of frequency of motor
10/16/2002EP1249611A2 Pump with check valve
10/15/2002US6464531 Sump pump alarm enclosure and connector
10/15/2002US6464465 Level control device for a wastewater collection basin
10/15/2002US6464464 Apparatus and method for controlling a pump system
10/09/2002EP1247986A1 Method for calculating characteristic curve of centrifugal fluid machine by computer
10/09/2002EP1247985A1 Method for selecting centrifugal fluid machine by computer
10/08/2002US6462666 Housing and electric connection panel for sump pump and full septic tank alarm
10/08/2002US6461117 Reversible volume oil pump
10/08/2002US6461114 Switch for pedestal sump pump
10/08/2002US6461104 Flow regulator for a water pump
10/02/2002DE10111739A1 Pumpaggregat Pump unit
10/02/2002DE10104635A1 Method for maintaining a constant output value, e.g. pressure, feed volume or capacity for vehicle oil pump, using rotational velocity transducer to adjust rotational speed of pump
10/01/2002CA2213765C Submersible motor-driven pump with float switch
09/2002
09/26/2002US20020136642 Method for regulating a delivery variable of a pump
09/25/2002CN1371542A Motor frame and motor using the motor frame and motor pump
09/19/2002US20020130783 System of tracking use time for electric motors and other components used in a subterranean environment
09/18/2002EP1241357A1 Pump unit
09/12/2002DE19709598C2 Flüssigkeitsförderanlage Liquid handling system
09/11/2002EP1239161A1 Thermal level detection in motor pump unit
09/10/2002US6447262 Pumping system for a multi-stage pump
09/06/2002WO2002045775A8 Method for calibrating a pressure sensor or a flow sensor on a rotation pump
09/05/2002US20020122731 Monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor
09/04/2002EP1235983A1 Electromagnetically suspended and rotated centrifugal pumping apparatus and method
09/04/2002CN2509358Y 压力缓冲器 Pressure buffer
09/04/2002CN2509357Y Automatic micro-blower pump
08/2002
08/29/2002WO2002066835A1 A method for monitoring a pump and a pump using the method
08/29/2002US20020119053 Reversible volume oil pump
08/28/2002CN1366143A Antiexplosion beverage pump
08/27/2002CA2373409A1 Reversible volume oil pump
08/22/2002US20020114702 Level control device for a wastewater collection basin
08/21/2002EP1233188A1 Level-dependent pump control
08/21/2002EP1232343A1 A system for controlling the working conditions for mechanical pumps, and a regulation valve for such a system
08/20/2002US6435837 Pump arrangement for liquid tanks
08/20/2002US6435836 Fluid machinery
08/14/2002CN2505622Y Rotating direction controller for rotary fan of submerged motor
08/14/2002CN2505621Y Rotating direction controller for rotary fan of submerged motor
08/13/2002US6431823 Centrifugal pump with variable capacity and pressure
08/08/2002US20020106280 Pump control method and apparatus
08/07/2002CN2504410Y :Multifunctional water pump control valve
08/07/2002CN2504409Y Feed control device for sucking water
08/01/2002WO2001005349A9 Spa pressure sensing system capable of entrapment detection
08/01/2002US20020102162 Processor based pump control systems
07/2002
07/25/2002US20020098089 Canned pump with ultrasonic bubble detector
07/25/2002US20020096219 Utility conservation control methodology within a fluid pumping system
07/24/2002CN2502046Y Vertical automatic exhaust circulating type canned motor pump
07/23/2002US6422838 Two-stage, permanent-magnet, integral disk-motor pump
07/23/2002US6422822 Pressurized seal for submersible pumps
07/18/2002US20020094281 Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
07/18/2002DE10101099A1 Monitoring process for dry running of a delivery pump for fluid media disconnects motor if threshold current value is exceeded
07/11/2002WO2002053915A1 Fluid vacuum safety device for fluid transfer and circulation systems
07/11/2002US20020090303 Method and system for adjusting operating parameters of computer controlled pumps
07/11/2002DE10107248A1 Electric motor for driving pump, comprises coupling elements for inserting electronic housing in four positions offset by 90 degrees
07/11/2002DE10064708A1 Hauswasserwerk Water works
07/10/2002EP1220653A2 Spa pressure sensing system capable of entrapment detection
07/10/2002EP1012477A4 Bearing and seal-free blood pump
07/10/2002CN1357689A Miniature submerged pump with water level inlet regulator
07/04/2002US20020085930 Electric fuel pump
07/04/2002US20020083905 Cooling system for vehicles
06/2002
06/27/2002DE10063797A1 Vorrichtung zur Rückförderung von flüssigen Medien Apparatus for recirculating liquid media
06/26/2002EP1217218A2 Pump control method and apparatus
06/26/2002EP1217217A1 Water supply installation
06/26/2002EP1216736A1 Apparatus and process for recirculating liquids using pumps mounted in parallel
06/20/2002US20020076331 Sump pump alarm
06/20/2002US20020076330 Pneumatic pump control system method and apparatus
06/20/2002DE10062207A1 Pumpe mit wählbaren Ansaugöffnungen Pump with variable suction
06/13/2002WO2002045775A2 Method for calibrating a pressure sensor or a flow sensor on a rotation pump
06/13/2002US20020072270 Sump pump alarm
06/13/2002US20020071775 Pump with selectable suction ports
06/13/2002DE10101350C1 Combined pumping and reversing valve device has transmission unit between electric motor driving water pump and reversing valve
06/13/2002DE10060275A1 Verfahren zum Kalibrieren eines Drucksensors oder eines Flussensors an einer Rotationspumpe A method of calibrating a pressure sensor or a flow sensor in a rotary pump
06/12/2002EP1212534A1 Monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor
06/06/2002WO2002044626A1 System and method of pressure distribution and pressure regulation for heating and air-conditioning units, and a very high-rise building utilizing the same
06/06/2002US20020066568 Integrated pumping system for use in pumping a variety of fluids
06/06/2002CA2429006A1 System and method of pressure distribution and pressure regulation for heating and air-conditioning units, and a very high-rise building utilizing the same
06/05/2002EP1211784A1 Motor frame and motor using the motor frame and motor pump
06/05/2002CN1352733A Apparatus and method for controlling a pump system
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