| 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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| 03/23/2005 | CN2687381Y Meshing-gear rotary control device for multi-rotor ceiling fan |
| 03/17/2005 | WO2005024199A1 Rotational speed control method of fan |
| 03/17/2005 | WO2005024187A1 Noise attenuation for an air bleed valve of a turbofan engine |
| 03/17/2005 | US20050058559 Fan motor |
| 03/17/2005 | US20050058541 Casing, a compressor, a turbine, and a combustion turbine engine including such a casing |
| 03/17/2005 | US20050056016 Variable exhaust gas turbocharger |
| 03/17/2005 | DE102004036556A1 Blowing device for e.g. phytosanitary product, has equipotentiality conductor connected to motor and extended inside nozzle, and brace with legs provided in form of spider and arranged on end of conductor that is distant from motor |
| 03/17/2005 | CA2541945A1 Apparatus and method for maintaining an operating condition for a blower |
| 03/16/2005 | EP1515423A2 Motor control system and vacuum pump equipped with the motor control system |
| 03/16/2005 | EP0996877B1 An apparatus and method for regulating a pressure in a chamber |
| 03/16/2005 | CN1595776A 风扇电动机 Fan motor |
| 03/16/2005 | CN1594890A High speed power driven magnetic suspension centrifugal blower |
| 03/16/2005 | CN1594889A Blowing fan system |
| 03/15/2005 | US6866472 Vacuum pump |
| 03/10/2005 | WO2005021976A1 Control device for compressor |
| 03/10/2005 | US20050053492 Cooling fan with built-in adjustable speed |
| 03/10/2005 | US20050053468 Cooling apparatus with a front loaded axial flow fan |
| 03/10/2005 | US20050052146 Motor control system and vacuum pump equipped with the motor control system |
| 03/10/2005 | US20050050900 Multi-position BOV actuator |
| 03/08/2005 | US6865513 Method for predicting life of rotary machine and determining repair timing of rotary machine |
| 03/08/2005 | US6863494 Process gas extraction device for an axial compressor, having a high degree of adaptability to changes in the operating characteristics of the compressor |
| 03/03/2005 | US20050047905 Molecular pump and connecting device |
| 03/03/2005 | US20050046362 Fan control system |
| 03/03/2005 | DE10336377A1 Integriertes Modul zur Ansteuerung eines Gebläsemotors Integrated module for controlling a blower motor |
| 03/02/2005 | CN2682230Y Warm-air blower control device |
| 03/02/2005 | CN1191432C 压气机 Compressor |
| 02/24/2005 | WO2005017321A1 Variable diffuser with movable wall |
| 02/24/2005 | US20050039298 Blower |
| 02/24/2005 | DE10336955A1 Verfahren und Vorrichtung zur Ansteuerung eines elektrischen Gebläsemotors Method and apparatus for driving an electric blower motor |
| 02/24/2005 | DE10336953A1 Overload protection unit for a fan motor especially in a motor vehicle has device to detect a blockage or operational fault in the motor |
| 02/24/2005 | DE10336945A1 Vehicle fan speed method for moderating the speed of an electric fan motor in a motor vehicle, using two switching devices in series and parallel for opening and closing |
| 02/24/2005 | DE10332096A1 Liquid cooling arrangement, e.g. for a CPU fan, has a liquid cooling circuit the coolant circulating pump of which is driven by the fan drive |
| 02/24/2005 | CA2531889A1 Compressor control system for a portable ventilator |
| 02/23/2005 | CN1584341A 鼓风机 Blower |
| 02/23/2005 | CN1582838A Air circulating device of dust cleaner |
| 02/22/2005 | US6857851 Axial compressor disk for a turbomachine with centripetal air bleed |
| 02/22/2005 | US6857845 System and method for detecting rotating stall in a centrifugal compressor |
| 02/17/2005 | WO2005014987A1 Method for controlling number of revolution of fan |
| 02/17/2005 | WO2005014986A1 Integrated module for controlling a fan motor |
| 02/17/2005 | US20050038570 Warning before pump limit or in case of blade failure on a turbomachine |
| 02/16/2005 | CN2679402Y Mosquito expelling fan |
| 02/15/2005 | US6854956 Turbo-molecular pump |
| 02/10/2005 | WO2005012735A1 Multi-position bov actuator |
| 02/10/2005 | CA2527302A1 Multi-position bov actuator |
| 02/08/2005 | US6851927 Fluid-flow machine with high-pressure and low-pressure regions |
| 02/08/2005 | US6851848 Turbo-molecular pump having radiation temperature apparatus |
| 02/03/2005 | WO2005010375A1 Gas compressor |
| 02/03/2005 | US20050025637 Direction control device for a ceiling fan |
| 02/03/2005 | US20050022552 Utilization of bogdown of single-shaft gas turbines to minimize relief flows in baseload LNG plants |
| 02/02/2005 | EP1503045A2 Turbine active seal assembly |
| 02/02/2005 | EP1503042A1 Braking system in a turbocharger |
| 02/02/2005 | CN1573058A Compressor with secondary boost air outlet passage |
| 01/27/2005 | US20050019168 Fan motor speed control circuit |
| 01/27/2005 | US20050019164 Technique for sensing altitude from fan speed |
| 01/27/2005 | US20050019162 Utilizing an altitude sensor to control fan speed |
| 01/27/2005 | US20050019152 Recirculation structure for a turbocompressor |
| 01/26/2005 | CN2674165Y Device for controlling rotating speed and sensing temp. of computer's fan |
| 01/26/2005 | CN2674163Y 电风扇 Fan |
| 01/26/2005 | CN1186536C On-line predication and adaptive regulation method and device for surge of compression system |
| 01/20/2005 | WO2004084665A3 Respirator |
| 01/19/2005 | CN2672331Y Electric fan |
| 01/19/2005 | CN2672330Y Radiator capable of changing fan speed according to temperature |
| 01/19/2005 | CN1566713A Method and apparatus for controlling rotation speed of complementary fan |
| 01/19/2005 | CN1566712A Apparatus and method for controlling rotation speed of multistage speed and intelligent fan |
| 01/13/2005 | US20050008484 Compressor |
| 01/13/2005 | US20050008476 Inflatable compressor bleed valve system |
| 01/13/2005 | US20050007041 Complementary fan rotational speed control method and apparatus |
| 01/13/2005 | DE10329019A1 Brennkraftmaschine mit einem Verdichter im Ansaugtrakt und Verfahren hierzu Internal combustion engine having a compressor in the intake and method therefor |
| 01/12/2005 | EP1496264A1 Methods and apparatuses for detecting surge in centrifugal compressors |
| 01/12/2005 | CN2670633Y Movable fan for grain elevator |
| 01/12/2005 | CN1564912A Method for optimizing the operation of a plurality of compressor assemblies of a natural-gas compression station |
| 01/07/2005 | CA2471329A1 Inflatable compressor bleed valve system |
| 01/06/2005 | WO2005001257A1 Internal combustion engine comprising a compressor in the suction part and method therefor |
| 01/06/2005 | US20050002782 Compressor |
| 01/05/2005 | EP1492957A1 Vacuum pump |
| 01/05/2005 | CN2668897Y Temperature-controlled speed-changing control circuit for fan |
| 01/04/2005 | US6837674 Safety jacket for rotary blade housings |
| 12/30/2004 | US20040265133 Method for optimizing the operation of a plurality of compressor assemblies of a natural-gas compression station |
| 12/30/2004 | US20040265119 Control lever attachment with play compensation for blades with variable setting angles |
| 12/30/2004 | US20040264948 Driving circuit for switches of direct current fan motor |
| 12/30/2004 | US20040263341 Airflow blockage detection apparatus for a permanent split-capacitor single-phase fan motor |
| 12/30/2004 | US20040263105 Thermal control variable-speed circuit without switching noise |
| 12/30/2004 | DE202004016545U1 Lüfter mit einem Sensor Fan with a sensor |
| 12/30/2004 | DE10326785A1 Fan motor seizure recognition procedure checks for excessive difference between measured and individual motor stored current voltage characteristics |
| 12/29/2004 | WO2004114512A1 Motor driver, motor driven by the motor driver, and apparatus employing the motor |
| 12/23/2004 | US20040260409 Vacuum pump |
| 12/23/2004 | US20040257023 Device and method used to automatically compensate for synchronous disturbance |
| 12/23/2004 | US20040255581 Compressor with secondary boost air outlet passage |
| 12/23/2004 | DE19549659B4 Verfahren zum Betreiben eines Radialverdichters A method for operating a radial compressor |
| 12/22/2004 | EP1488084A1 Variable exhaust gas turbocharger |
| 12/22/2004 | CN2665418Y Thermal fan built-in dual directional speed regulation arrangement |
| 12/21/2004 | US6832888 Molecular pump for forming a vacuum |
| 12/21/2004 | US6832629 Rapid inflation and venting air valve of airbed |
| 12/16/2004 | WO2004108610A1 Combination of compressor and permanent magnet motor for sewage aeration |
| 12/16/2004 | US20040250372 Car wash blower control |
| 12/16/2004 | DE10322953A1 Air conditioning system for motor vehicle, e.g. coach, has at least two fans connected to fan control unit, having soft-start unit |
| 12/16/2004 | CA2522123A1 Combination of compressor and permanent magnet motor for sewage aeration |
| 12/15/2004 | EP1486678A2 Compressor with secondary boost air outlet passage |
| 12/15/2004 | EP1486673A1 Vacuum pump control device, and vacuum device |
| 12/09/2004 | US20040247449 Fan control system using a microcontroller |