| 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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| 11/03/2009 | US7611329 Method and device for synchrophasing the propellers of an aircraft with several propulsion units |
| 10/28/2009 | CN101566166A Temperature-speed-changing heat radiation unit |
| 10/28/2009 | CN100555808C Pinion motor |
| 10/27/2009 | US7608353 Method for detecting compressor surge in a fuel cell system using a mass flow meter |
| 10/22/2009 | WO2009129178A1 Control system |
| 10/22/2009 | WO2009127656A1 Vacuum pump |
| 10/22/2009 | WO2009127483A1 Vacuum pump |
| 10/22/2009 | US20090263234 Centrifugal compressor with surge control, and associated method |
| 10/22/2009 | DE102008019472A1 Vakuumpumpe Vacuum pump |
| 10/22/2009 | DE102008019451A1 Vakuumpumpe Vacuum pump |
| 10/21/2009 | EP2110557A1 Centrifugal compressor with surge control, and associated method |
| 10/21/2009 | CN201331828Y 无线风扇控制装置 Wireless Fan Control Device |
| 10/21/2009 | CN100552233C Method and device for controlling rotation speed of fan |
| 10/21/2009 | CN100552232C Fan control device with thermoelectric effect control circuit |
| 10/15/2009 | WO2009125135A2 Casing for a moving-blade wheel of a turbomachine |
| 10/15/2009 | CA2718847A1 Casing for a moving-blade wheel of a turbomachine |
| 10/14/2009 | CN201326557Y Mineral flame-proof type double-log cyclone cluster switch |
| 10/14/2009 | CN101555885A Ceiling fan structure |
| 10/14/2009 | CN101555884A Combined adjusting method of centrifugal fan and thermal power unit using same |
| 10/14/2009 | CN101555883A Wide-angle electric fan |
| 10/14/2009 | CN101555877A Flow-stabilizing regulating and controlling device of sea water pump |
| 10/13/2009 | US7600981 Method for optimizing the operation of a plurality of compressor assemblies of a natural-gas compression station |
| 10/13/2009 | US7600379 Exhaust gas turbocharger for an internal combustion engine |
| 10/08/2009 | WO2009122950A1 Controller of hydraulically driven fan |
| 10/08/2009 | WO2009121350A1 Gas turbine compressor |
| 10/08/2009 | US20090252617 Method for operation of a compressor supplied by a power converter |
| 10/08/2009 | DE102008017555A1 Device for detecting fan type and controlling fan e.g. 4-wire pulse width modulation fan, in computer, has tachometer connected with direct current generator and receiving tachometer signal to detect change in speed of fan |
| 10/08/2009 | CA2720172A1 Gas turbine compressor |
| 10/07/2009 | EP2107216A2 Method for determining the total pressure distribution across a fan entry plane |
| 10/07/2009 | CN201321998Y Alternating current fan speed regulator |
| 10/07/2009 | CN101550945A Method and system for high-power blower variable-pitch control |
| 10/07/2009 | CN101550944A Transducing electric fan |
| 10/06/2009 | US7596953 Method for detecting compressor stall precursors |
| 10/01/2009 | WO2009120654A1 System and methods for psa gas separation using centrifugal compressor with high-speed permanent magnet motor |
| 10/01/2009 | WO2009120522A2 Integrated fan drive system for air-cooled heat exchanger (ache) |
| 10/01/2009 | WO2009119407A1 Fan drive controlling device and construction machine |
| 10/01/2009 | CA2719750A1 System and methods for psa gas separation using centrifugal compressor with high-speed permanent magnet motor |
| 10/01/2009 | CA2719264A1 Integrated fan drive system for air-cooled heat exchangers (ache) |
| 09/30/2009 | EP2104779A1 Control unit, in particular for a cooling-air fan of an internal combustion engine, and cooling system for an internal combustion engine |
| 09/30/2009 | CN201318306Y Automatic frequency-changing speed-regulating system of electric stove environmental-protection dust-removing blower |
| 09/30/2009 | CN201318305Y Small-sized radiating fan |
| 09/30/2009 | CN201318304Y Frequency conversion control device for air cooling blower |
| 09/30/2009 | CN201318303Y Direct current fan |
| 09/30/2009 | CN101546202A Information processing apparatus and method of controlling cooling fan |
| 09/30/2009 | CN101545497A Automobile engine cooling fan control system based on four-phase double-wire winding brushless DC motor |
| 09/30/2009 | CN101545496A Method for controlling bathroom heating and ventilating fan |
| 09/30/2009 | CN101545495A Device and method for controlling anti-surging of a blast blower |
| 09/29/2009 | US7594386 Apparatus for the prevention of critical process variable excursions in one or more turbomachines |
| 09/24/2009 | DE10003018B4 Turboverdichter Turbo Compressor |
| 09/23/2009 | EP2103811A2 Fluid injection nozzle |
| 09/23/2009 | EP2103792A1 Gas turbine compressor with bleed air device |
| 09/23/2009 | EP1553306B1 Mix-in structure for gas or the like in pressurization centrifugal pump |
| 09/23/2009 | CN101539151A Method and device for controlling inverter compressor |
| 09/22/2009 | US7591433 Method for controlling fan speed |
| 09/22/2009 | CA2522760C Methods for detecting surge in centrifugal compressors |
| 09/17/2009 | WO2009114317A2 Cooling system for clutch |
| 09/17/2009 | WO2009072160A3 High-energy efficiency plant for automotive methane compression |
| 09/17/2009 | US20090232663 Compressor-Expander Set Critical Speed Avoidance |
| 09/17/2009 | US20090232642 Adjustable compressor bleed system and method |
| 09/17/2009 | US20090232638 System and method for monitoring radial motion of a rotating shaft of a turbocharger |
| 09/16/2009 | EP1910055B1 Blown film manufacturing installation and method for the operation thereof |
| 09/16/2009 | CN101532507A Adjustable compressor bleed system and method |
| 09/16/2009 | CN100540916C Universal driving method for different fan and device therefor |
| 09/15/2009 | CA2395613C Method and system for optimizing the performance of a rotodynamic multi-phase flow booster |
| 09/11/2009 | WO2009110219A1 Ventilation device and electrical equipment in which same is installed |
| 09/11/2009 | WO2009110201A1 Ceiling fan |
| 09/10/2009 | DE102009009509A1 Filterlüfter Filter Fans |
| 09/09/2009 | CN201306296Y A ceiling fan motor control device |
| 09/09/2009 | CN201306295Y Intelligent electric fan |
| 09/09/2009 | CN201306294Y Comfortable body sensing energy-saving fan |
| 09/09/2009 | CN101526085A Air quality intelligent inductive air exchange fan |
| 09/09/2009 | CN100538083C Fluid machinery especially exhaust-gas turbocharger |
| 09/08/2009 | US7584600 Gas turbine, in particular aircraft engine and method for generating electrical energy in a gas turbine |
| 09/03/2009 | WO2009108237A1 Plasma enhanced compressor |
| 09/03/2009 | WO2009106465A1 Compressor unit |
| 09/03/2009 | US20090220351 Fan Controller and Image Forming Apparatus |
| 09/03/2009 | CA2710214A1 Plasma enhanced compressor |
| 09/02/2009 | EP2096316A2 Housing structuring for axial compressor in the hub area |
| 09/02/2009 | EP2096267A2 Methods for regulating gas turbine engine fluid flow |
| 08/27/2009 | WO2009103278A1 Circulation structure for a turbo compressor |
| 08/27/2009 | US20090211653 Vacuum Pumping Arrangement |
| 08/27/2009 | DE10205566B4 Vorrichtung zum Erfassen des Drehzustands einer Gebläsevorrichtung für eine zu einer Handhabungsvorrichtung gehörende Kammer A device for detecting the rotational state of a blower device for a handling device associated with a chamber |
| 08/27/2009 | DE102008009612A1 Fan's aging verifying method for e.g. server, involves operating of fan with preset speed, which is smaller than maximum speed of fan, and comparing measured variable predefined for evaluation of fan drive with reference value |
| 08/27/2009 | CA2716417A1 Circulation structure for a turbo compressor |
| 08/26/2009 | EP2093429A1 Compressor unit |
| 08/26/2009 | EP2093428A1 A fan assembly and method of controlling the volume flow rate of fluid through such an assembly |
| 08/26/2009 | EP1404975B1 Flow stabilizing device |
| 08/26/2009 | CN201297269Y Capacitor exhaust fan controller in transformer substation indoor |
| 08/26/2009 | CN201297268Y 吊扇 Ceiling fan |
| 08/26/2009 | CN201297267Y Control device for blower of automobile air conditioner |
| 08/26/2009 | CN201297265Y A multi- fan leaf electric fan with 360 degrees wind in direction |
| 08/26/2009 | CN101514708A Computer fan control device |
| 08/20/2009 | DE112007002264T5 Gebläse Blower |
| 08/20/2009 | DE102008009473A1 Vorrichtung und Verfahren zum Befüllen von aufblasbaren Fahrzeugsitz-Polsterelementen Apparatus and method for filling inflatable vehicle seat cushion elements |
| 08/19/2009 | EP2090786A2 Housing structure for stabilising the flow in a flow work machine |
| 08/19/2009 | CN201292970Y Double-directional scavenger fan controlled by pull-cord |
| 08/19/2009 | CN201292955Y Mechanical hydraulic power-dividing stepless governor |
| 08/19/2009 | CN201292954Y Water pump and/or blower fan highly effective energy-conserving control system |
| 08/19/2009 | CN201292945Y Start-up protective system for spiral slice type oil-sealed vacuum pump |
| 08/19/2009 | CN101510752A Application device of variable frequency controller for electric fan |