| Patents for F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems (4,967) |
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| 05/31/2007 | US20070122290 Water-lifting pump apparatus and method for controlling operation thereof |
| 05/31/2007 | US20070122289 Electronic control device for a synchronous pump |
| 05/31/2007 | US20070122268 Turbocharger with sliding piston assembly |
| 05/31/2007 | US20070119246 Flow rate estimation method of blood pump |
| 05/30/2007 | EP1790858A1 Control algorithm of variable speed pumping system |
| 05/24/2007 | US20070116553 Fan system and temperature-sensing protecting device thereof |
| 05/24/2007 | DE10393946T5 Verbesserte Kreiselpumpen-Leistungsverschlechterungsdetektion Improved centrifugal pump performance degradation detection |
| 05/23/2007 | EP1788253A2 Pump control device |
| 05/23/2007 | CN2903424Y Digit decided pressure difference internal combustion engine water pump |
| 05/23/2007 | CA2801908A1 Control algorithm of variable speed pumping system |
| 05/17/2007 | US20070110558 Fan system and temperature-sensing module |
| 05/15/2007 | US7217104 Method and system for liquid leak detection, notification and removal |
| 05/10/2007 | DE102005052559A1 Regelbarer Antrieb für ein Kraftfahrzeug, insbesondere für eine Kühlmittelpumpe Controllable drive for a motor vehicle, in particular for a coolant pump |
| 05/09/2007 | EP1783264A2 Improvements relating to washing machines |
| 05/09/2007 | CN2898380Y Intelligent emulsified liquid pump station |
| 05/09/2007 | CN2898379Y Automatic immersible pump |
| 05/02/2007 | CN2895816Y Up-machine down-pump type single-stage double-suction double-volute submersible electric pump |
| 05/02/2007 | CN2895807Y Efficient energy-saving and smart pump special for petro-chemical industry |
| 04/26/2007 | WO2007045836A1 Waste water unit |
| 04/26/2007 | DE102005004315B4 Regelbare Kühlmittelpumpe Controllable coolant pump |
| 04/26/2007 | DE102004054637B4 Regelbare Kühlmittelpumpe Controllable coolant pump |
| 04/25/2007 | EP1629204A4 Pressure relief arrangement for a pump |
| 04/25/2007 | CN2893238Y Mining flame-proof and essential safety water pump water level controller |
| 04/19/2007 | WO2007041818A1 Fluid compressor with aerostatic bearing, control system of a compressor with aerostatic bearing and method of controlling a compressor with aerostatic bearing |
| 04/19/2007 | DE102006049440A1 Method for determination of condition in particular of centrifugal or reciprocating and rotary pump, comprises use of parameters of pulsation of pressure and/or flow |
| 04/18/2007 | EP1775476A1 Control device for motor pumps |
| 04/18/2007 | EP1356206B1 Method for maintaining a constant output variable of a feed pump, e.g. the displaced volume thereof which is actuated by a speed variable drive device, and a device for carrying out said method |
| 04/17/2007 | US7204672 Multi-modal forced vortex device |
| 04/12/2007 | US20070081888 Series fans with flow modification element |
| 04/11/2007 | EP1608823B1 Method for the effective treatment of sewage in a transfer tank |
| 04/10/2007 | US7202624 Self calibrating fan |
| 04/05/2007 | DE112005001075T5 Drehmomentgesteuerte Pumpenschutzeinrichtung mit mechanischer Verlustkompensierung Torque-controlled pump protection device with a mechanical Verlustkompensierung |
| 04/04/2007 | CN2886138Y Full-automatic pressure-holding heavy-hammer type hydraulic check butterfly valve |
| 04/03/2007 | US7198457 Single-shaft multistage pump |
| 04/03/2007 | US7198102 Automatic downlink system |
| 03/29/2007 | US20070071592 Temperature Control Device of Simple Cooling Fan |
| 03/29/2007 | DE102005045861A1 Einrichtung zur Fluidsteuerung, Gehäusebauteil mit einer derartigen Einrichtung und damit ausgestattete Pumpeinrichtung Means for fluid control, housing member with such a device and equipped therewith pumping means |
| 03/28/2007 | EP1767789A2 Fluid control device and pumping system comprising the same |
| 03/28/2007 | EP1767788A1 Drain pump for home appliances |
| 03/28/2007 | EP1766343A1 Proximity sensor for level sensing in a bilge |
| 03/28/2007 | CN2883672Y Local auto delaying switcher of fan |
| 03/28/2007 | CN1938520A Method for detecting operation errors of a pump aggregate |
| 03/27/2007 | US7195462 Method for controlling several pumps |
| 03/22/2007 | WO2007030914A1 Pump controller for controlling pumps connected in tandem |
| 03/22/2007 | DE19615923B4 Verfahren zur Bestimmung der momentanen Betriebsbedingungen für eine Zentrifugalpumpe A method for determining the instantaneous operating conditions for a centrifugal pump |
| 03/22/2007 | CA2620279A1 Pump controller for controlling pumps connected in tandem |
| 03/21/2007 | CN2881164Y Submerged pump with built-in switch |
| 03/14/2007 | CN2878737Y Intelligent control valve for open-ring airtight water pump |
| 03/07/2007 | EP1354168A4 System and method of pressure distribution and pressure regulation for heating and air-conditioning units, and a very high-rise building utilizing the same |
| 03/07/2007 | CN2876385Y Device for controlling power generating plant circulation water pump starting |
| 03/06/2007 | US7186071 Variable flow water pump |
| 03/06/2007 | US7185528 Speed and fluid flow controller |
| 03/01/2007 | WO2007024475A1 Submersible pump with integrated liquid level sensing and control system |
| 03/01/2007 | US20070048121 Method and arrangement for control of direct current motor |
| 02/28/2007 | EP1756428A1 An electric synchronous pump with a volute having a tangential outlet |
| 02/27/2007 | US7182582 Centrifugal pump with reverse rotation protection integrated on the impeller blade |
| 02/22/2007 | US20070041824 Fan system and its control device and control method |
| 02/22/2007 | DE102005062200B3 Adjustable coolant pump for internal combustion engine has annular valve pusher fitted to several piston rods movable in pump housing |
| 02/21/2007 | CN1916428A Dual control automatic water injection method for pump control and pump pressure flow |
| 02/21/2007 | CN1916426A Intelligent pump set matched to new sewage treatment facility |
| 02/20/2007 | US7179054 Flow reversal system for axial fan |
| 02/15/2007 | WO2007019496A1 Bypass passage for fluid pump |
| 02/15/2007 | WO2007018044A1 Method and device for measuring flow rate and head of centrifugal pump, and circulation state evaluation device for pulsating circulation system |
| 02/15/2007 | CA2618493A1 Bypass passage for fluid pump |
| 02/14/2007 | CN1914420A A pumping system |
| 02/14/2007 | CN1300465C Ammonia pump automatic liquid adding continuous constant pressure apparatus |
| 02/09/2007 | CA2540610A1 Pump monitoring system |
| 02/08/2007 | US20070031238 Inlet guide vane control device of gas turbine |
| 02/08/2007 | DE19882378B4 Mechanische Dichtung mit Spülanordnung Mechanical seal with Spülanordnung |
| 02/08/2007 | DE10347235B4 Wassersauger Dry vacuum cleaners |
| 02/07/2007 | CN2866906Y Single-stage single-suction automatic exhausting pipe type centrifugal pump |
| 02/01/2007 | WO2005108757A3 Staged turbocharger |
| 01/31/2007 | CN2864162Y Water pump with self control device |
| 01/30/2007 | US7168924 Rod pump control system including parameter estimator |
| 01/25/2007 | US20070020083 Pressure relief arrangement for a pump |
| 01/24/2007 | CN2861566Y Sewage treatment pump |
| 01/24/2007 | CN2861562Y Negative pressure water diversion device for eccentric water pump |
| 01/17/2007 | EP1743817A2 Washer fluid spraying apparatus |
| 01/17/2007 | CN2859017Y Exhaust protection controller of water pumping motor for tap water |
| 01/17/2007 | CN2859016Y Self-control synchronous self-priming pump for groove detachable cistern |
| 01/11/2007 | WO2007004943A1 A pump |
| 01/11/2007 | CA2606677A1 A pump |
| 01/10/2007 | EP1740806A1 Method and device for transporting a liquid |
| 01/09/2007 | US7160242 Blood pump system |
| 01/03/2007 | CN1293309C Pump control system |
| 12/28/2006 | WO2006137777A1 Control system for a pump |
| 12/28/2006 | WO2006137765A1 Adjustment device for adjusting propeller blades of a propeller pump and a propeller pump including such a device |
| 12/28/2006 | WO2006136202A1 Control system for a pump |
| 12/28/2006 | US20060291994 Cooling apparatus and method for controlling the same |
| 12/28/2006 | US20060288772 Method and device for determining the hydraulic flow rate in a pump driven by a synchronous electric motor |
| 12/28/2006 | CA2606556A1 Control system for a pump |
| 12/27/2006 | EP1736669A2 Adjustable coolant pump |
| 12/27/2006 | CN1884839A Washing pump for front and rear windows of automobile |
| 12/19/2006 | US7150711 Method for controlling an assist pump for fluid delivery systems with pulsatile pressure |
| 12/14/2006 | WO2006132541A1 Subsea compression system |
| 12/14/2006 | US20060278386 Method and apparatus for controlling the speed of a pump in a well |
| 12/14/2006 | DE102005027091A1 Betriebsverfahren für eine Abwasserhebeanlage und mit diesem Verfahren betriebene Anlage A method of operating a sewage lifting unit and with this method feasible system |
| 12/13/2006 | CN2846811Y Automatic water discharge pump for lower place |
| 12/13/2006 | CN1877136A In-line pumping unit |
| 12/07/2006 | WO2006129192A1 Impeller for centrifugal pumps with permanent-magnet synchronous motor |