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