| Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590) |
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| 07/18/2006 | US7079758 PWM driving apparatus |
| 07/18/2006 | US7077632 Blower having a blower tube incorporating a reduction device for reducing the clear flow cross section of said blower tube at idle operation |
| 07/18/2006 | US7077623 Fluid flow machine with integrated fluid circulation system |
| 07/18/2006 | US7076940 Gas turbine control system |
| 07/13/2006 | US20060153715 Vacuum pumping system and method of operating a vacuum pumping arrangement |
| 07/13/2006 | US20060153671 Centrifugal fan diffuser |
| 07/12/2006 | CN2795499Y Air exhaust fan with automatic exhaust function while gas leakage |
| 07/12/2006 | CN2795487Y Load discharging valve for gas compressor |
| 07/12/2006 | CN1802319A Combination of compressor and permanent magnet motor for sewage aeration |
| 07/12/2006 | CN1800650A Fan rotary speed control system and method |
| 07/11/2006 | US7075446 Method and apparatus for monitoring motor rotation speed |
| 07/11/2006 | US7075261 Method and apparatus for controlling a fan |
| 07/11/2006 | US7073334 Variable exhaust gas turbocharger |
| 07/05/2006 | CN2793380Y Pressure-adjusting centrifugal blast blower |
| 07/05/2006 | CN2793379Y Multi-rotor hung fan for controlling revolution speed by forward and backward steering motor |
| 07/05/2006 | CN2793378Y Multi-rotor hung fan for controlling revolution speed by forward and backward steering motor |
| 07/05/2006 | CN1799191A Motor driver, motor driven by the motor driver, and apparatus employing the motor |
| 07/05/2006 | CN1796797A Control set for adjusting angle of swing of electric fan |
| 07/05/2006 | CN1796796A Serial fan group, and method for generating match curve of rotate speed |
| 07/05/2006 | CN1262821C Method for measuring differential pressure and pump system using the method |
| 07/04/2006 | US7069734 Methods for detecting surge in centrifugal compressors |
| 07/04/2006 | US7069733 Utilization of bogdown of single-shaft gas turbines to minimize relief flows in baseload LNG plants |
| 07/04/2006 | US7069728 Multi-position BOV actuator |
| 06/29/2006 | US20060140747 Variable pressure-controlled cooling scheme and thrust control arrangements for a steam turbine |
| 06/29/2006 | DE102004027594B4 Strömungsmaschine mit radial durchströmtem Verdichterrad Flow machine with radial compressor perfused |
| 06/28/2006 | CN1795334A Fan array fan section in air-handling systems |
| 06/28/2006 | CN1793668A Fan capable of randomly regulating tilting head angle |
| 06/28/2006 | CN1262064C Fan rotation speed controlling system |
| 06/27/2006 | US7066470 Active seal assembly |
| 06/27/2006 | US7065973 Stall detection and recovery system |
| 06/27/2006 | US7065954 Turbine, particularly useful for small aircraft |
| 06/22/2006 | WO2006063947A1 Method for operation of a compressor supplied by a power converter |
| 06/21/2006 | EP1671037A2 System and method for stability control in a centrifugal compressor |
| 06/21/2006 | CN1791754A Pressure relief arrangement for a pump |
| 06/21/2006 | CN1791318A Fan combination and fan speed-governing method |
| 06/14/2006 | EP1669609A1 Gas partial pressure control for process optimisation |
| 06/14/2006 | EP1668253A1 Detection of contaminants within fluid pumped by a vacuum pump |
| 06/14/2006 | EP1440242B1 Smoke protection for rooms |
| 06/14/2006 | DE102004060206B3 Verfahren zum Betrieb eines stromrichtergespeisten Verdichters Method for operating a converter-fed compressor |
| 06/14/2006 | CN2787888Y Intelligent electric fan with temperature controller |
| 06/14/2006 | CN1786480A Centrifugal compressor for turbine refrigerator, turbine refrigerator and control method thereof |
| 06/13/2006 | US7059823 Molecular pump equipped with flange having buffering portion |
| 06/08/2006 | WO2006060010A1 Compressor inlet guide vane for tip turbine engine and corresponding control method |
| 06/08/2006 | WO2006059027A1 Gas partial pressure control for process optimization |
| 06/08/2006 | WO2006058848A1 Method for operating a turbocompressor |
| 06/08/2006 | US20060122815 Rotating stall |
| 06/08/2006 | US20060117749 Internal combustion engine having a compressor in the induction system and method for this |
| 06/07/2006 | EP1666733A2 Rotating stall |
| 06/07/2006 | EP1666732A2 Method of engine surge discrimination |
| 06/07/2006 | EP1666731A1 Operating method for turbo compressor |
| 06/07/2006 | EP1666705A1 Fan rpm control method |
| 06/01/2006 | US20060112697 Stall detection and recovery system |
| 06/01/2006 | DE102004028133B4 Strömungsmaschine, insbesondere Abgasturbolader Flow machine, in particular exhaust gas turbocharger |
| 05/31/2006 | EP1662147A1 Control device for compressor |
| 05/31/2006 | EP1660760A1 Variable diffuser with movable wall |
| 05/31/2006 | EP1488084B1 Variable exhaust gas turbocharger |
| 05/31/2006 | CN2784631Y Water shortage protector for water pump |
| 05/31/2006 | CN2784627Y Portable inflating pump |
| 05/24/2006 | EP1659294A2 Compressor control unit and gas turbine power plant including this unit |
| 05/24/2006 | EP1659293A2 Turbomachine |
| 05/24/2006 | EP1659292A2 Turbocharger |
| 05/24/2006 | DE102004055944A1 Vorrichtung und Verfahren zur Belüftung einer Kochfläche Apparatus and method for ventilating a cooking surface |
| 05/24/2006 | CN2782999Y Microwave inductive electric fan |
| 05/24/2006 | CN2782996Y Adjustable air pump |
| 05/23/2006 | CA2204260C Improved air control system for an air bed |
| 05/18/2006 | WO2006051260A1 Vacuum pumping system |
| 05/18/2006 | WO2006017365A3 Improving centrifugal compressor performance by optimizing diffuser surge control and flow control device settings |
| 05/18/2006 | US20060104805 Turbomachine with means for the creation of a peripheral jet on the stator |
| 05/17/2006 | CN1774187A Respirator |
| 05/17/2006 | CN1773124A Electric blower |
| 05/16/2006 | US7044716 High-pressure multi-stage centrifugal compressor |
| 05/11/2006 | US20060099094 Vacuum pumping arrangement and method of operating same |
| 05/11/2006 | DE19704234B4 Verfahren und Vorrichtung zur Regelung des Saugvermögens von Vakuumpumpen Method and apparatus for regulating the pumping speed of vacuum pumps |
| 05/11/2006 | DE102004053849A1 Schubumluftventil für Turbolader-Brennkraftmaschinen Diverter valve for turbocharger engine |
| 05/10/2006 | EP1655494A2 Vacuum pump system and signal generating method |
| 05/10/2006 | EP1654462A1 Gas compressor |
| 05/10/2006 | EP1532368B1 Compressor in an exhaust-gas turbocharger for an internal combustion engine |
| 05/10/2006 | EP1474610B1 Warning before pump limit or in case of blade failure on a turbomachine |
| 05/03/2006 | EP1653063A1 Method for controlling number of revolution of fan |
| 05/02/2006 | US7036319 Method of balancing the supply of bleed air from a plurality of engines |
| 04/26/2006 | EP1649172A1 Multi-position bov actuator |
| 04/26/2006 | CN2775353Y Air pressure automatic regulator for air compressor |
| 04/26/2006 | CN1253662C High pressure multi-stage centrifugal compressor |
| 04/25/2006 | US7034500 Electric drive assembly |
| 04/25/2006 | US7033142 Vacuum pump system for light gases |
| 04/20/2006 | WO2006040287A1 Rapidly rotating vacuum pump |
| 04/20/2006 | US20060081226 Electrical charge air compressor provided with an integrated air cooling system |
| 04/19/2006 | CN2773357Y Swinging angle adjusting controller of electric fan |
| 04/19/2006 | CN2773356Y Air transferring device with adjustable air transferring mouth |
| 04/18/2006 | US7029391 Blower unit and air conditioning unit including the same and method of controlling the same |
| 04/18/2006 | US7028485 Surge prevention for compressor inlet air fogging |
| 04/13/2006 | DE102004048866A1 Schnelldrehende Vakuumpumpe Fast-moving vacuum pump |
| 04/12/2006 | CN2771530Y Air pump pressure controller |
| 04/12/2006 | CN1758525A Circuit for starting DC fan |
| 04/11/2006 | US7025558 Process for the reliable operation of turbocompressors with surge limit control and surge limit control valve |
| 04/06/2006 | WO2006036134A1 Mehtod for adjusting an inflow turbine provided with vaneless distributor |
| 04/06/2006 | WO2006006953A3 Gas turbine engine electromechanical variable inlet guide vane actuation system |
| 04/06/2006 | US20060073008 Modular ventilating exhaust fan assembly and method |
| 04/06/2006 | US20060070655 Valve |
| 04/06/2006 | DE19933202B4 Verfahren zum Betreiben mehrstufiger Verdichter A method for operating a multi-stage compressor |