| 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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| 07/12/2007 | DE102006048153A1 Steuerungs- bzw. Regelungsverfahren für Lüftergeschwindigkeit Control and regulation method for fan speed |
| 07/12/2007 | DE102005063069A1 Air purification device for use with e.g. carbon filter, has high voltage production device electrically connected in parallel to input of fan motor, where number of revolutions of fan motor is adjustable using changeable input voltage |
| 07/11/2007 | CN2921380Y External rotor permanent magnetic brushless DC electric machine speed regulating centrifugal ventilator |
| 07/11/2007 | CN1996406A Separated heating device for ATM |
| 07/11/2007 | CN1995758A Linear temperature speed controller for fan |
| 07/10/2007 | US7242562 Fan protection method and apparatus |
| 07/10/2007 | US7240536 Test-gas leak detector |
| 07/05/2007 | WO2007075733A2 A motor, a method of operating a motor, and a system including a motor |
| 07/05/2007 | US20070156361 Self calibrating fan |
| 07/05/2007 | US20070154299 Cross-flow wind turbine |
| 07/04/2007 | CN2918809Y Human body heat-releasing infrared inductive automatic control electric fan |
| 07/04/2007 | CN2918805Y Air charging and exhausting adjustable pump |
| 07/04/2007 | CN1992498A Electric powder converting apparatus and control method for the apparatus |
| 07/04/2007 | CN1991180A Fan control method and fan control system using the method |
| 06/28/2007 | WO2007035700A3 Multi-stage compression system including variable speed motors |
| 06/28/2007 | DE10109412B4 Verfahren zum Charakterisieren des Flammzustandes in einem Heizbrenner eines Fahrzeugheizgerätes A method for characterizing the state in a heating burner flame of a vehicle heater |
| 06/27/2007 | CN2916211Y Cooling and heating dual-purpose fan |
| 06/21/2007 | WO2007068969A1 Apparatus for detecting a flammable atmosphere within a compressor, in particular avacum pump |
| 06/21/2007 | WO2007051444A3 Multistage compressor for a gas turbine, comprising discharge ports and injection ports to stabilize the compressor flow |
| 06/20/2007 | EP1797335A1 Rapidly rotating vacuum pump |
| 06/14/2007 | DE102005060635A1 Steuerungsverfahren zur Kühlung einer technischen Anlage A control method for cooling a technical installation |
| 06/13/2007 | CN1978915A Fan system and temperature feel protection device |
| 06/13/2007 | CN1978914A Fan system and protection method therefor |
| 06/12/2007 | US7229250 Control system for variable pitch fan |
| 06/12/2007 | US7229243 Compressor |
| 06/06/2007 | EP1792242A1 Method and device for determining an error state in a rotating compressor |
| 06/06/2007 | CN2908870Y Intelligent electric fan |
| 06/06/2007 | CN2908869Y Horizontal electric fan |
| 06/05/2007 | US7228204 Fan unit for forced air cooling, motherboard formed wiring for operating fan unit, and electronic equipment to be fan-cooled |
| 05/30/2007 | EP1789653A1 Rotor for a power plant |
| 05/30/2007 | CN1971469A Heating control device of ATM |
| 05/30/2007 | CN1971059A Fan system and its orderly start module and delayed start unit |
| 05/30/2007 | CN1971058A Rotation rate-controllable DC brushless fan |
| 05/29/2007 | US7224137 Instantaneous fan stopping method and structure thereof |
| 05/29/2007 | US7223066 Variable vane arrangement for a turbomachine |
| 05/24/2007 | WO2007057257A1 Compressor wheel for an exhaust gas turbocharger |
| 05/23/2007 | EP1604116A4 Fan array fan section in air-handling systems |
| 05/23/2007 | CN2903489Y Radiating fan |
| 05/18/2007 | WO2005061896A3 Vacuum pump |
| 05/17/2007 | US20070110587 Control unit for compressor |
| 05/16/2007 | EP1785632A1 Fixation device for a vacuum pump |
| 05/16/2007 | CN2900874Y Fan rocking device |
| 05/16/2007 | CN1963233A Method and device for controlling rotation speed of fan |
| 05/15/2007 | US7218073 Fan motor speed control circuit |
| 05/15/2007 | US7217103 Gaseous fluid compressor control system |
| 05/10/2007 | WO2007051444A2 Multistage compressor for a gas turbine, comprising discharge ports and injection ports to stabilize the compressor flow |
| 05/10/2007 | CA2626853A1 Multistage compressor for a gas turbine, comprising discharge ports and injection ports to stabilize the compressor flow |
| 05/09/2007 | EP1781950A2 Improving centrifugal compressor performance by optimizing diffuser surge control and flow control device settings |
| 05/09/2007 | EP1781949A1 Dynamically controlled compressors |
| 05/09/2007 | EP1404975A4 Flow stabilizing device |
| 05/09/2007 | CN2898383Y Electric fan with swing angle adjustment |
| 05/09/2007 | CN1959121A Device and method for controlloring rotate speed of fan |
| 05/02/2007 | CN1313704C Fluid machinery with high pressure and lower pressure sectors, and operating method of steam turbine |
| 05/01/2007 | US7211024 Toroidal type continuously variable transmission |
| 05/01/2007 | US7210905 Compressor having casing treatment slots |
| 05/01/2007 | US7210895 Turbo compressor and method of operating the turbo compressor |
| 05/01/2007 | US7210295 Compressor with secondary boost air outlet passage |
| 04/26/2007 | US20070092384 Cooling system for a blower |
| 04/26/2007 | US20070089420 Gas turbine, in particular aircraft engine and method for generating electrical energy in a gas turbine |
| 04/26/2007 | DE102006032512A1 System zum Abführen von Wärme System for dissipating heat |
| 04/25/2007 | EP1629204A4 Pressure relief arrangement for a pump |
| 04/25/2007 | CN2893253Y Electric blowing machine |
| 04/25/2007 | CN2893242Y Regulator capable of regulating fan swing angle |
| 04/25/2007 | CN1953114A Electrical installation and ventilator fan |
| 04/19/2007 | WO2007042842A1 Vacuum pumping arrangement |
| 04/19/2007 | WO2007042353A1 Cooling fan module for a motor vehicle |
| 04/19/2007 | WO2007042351A1 Cooling fan module for a motor vehicle |
| 04/19/2007 | US20070084212 Method for the Operation of a Compressor of a Gas Turbine With Evaporative Cooling of the Compressor Induction Air |
| 04/18/2007 | EP1775477A2 Bleed valve outlet flow deflector |
| 04/18/2007 | CN2890434Y Inflator pump manual valve with pump switch device |
| 04/18/2007 | CN2890433Y Environmental protection energy-saving fan |
| 04/18/2007 | CN1948764A Location method for fan picture and characters display |
| 04/18/2007 | CN1948763A 顶棚风扇 Ceiling fan |
| 04/18/2007 | CN1311118C Method and apparatus for continuous mercerizing textile yarns |
| 04/17/2007 | US7206724 Method for designing a blower wheel scroll cage |
| 04/12/2007 | WO2007040180A1 Blower and electric device with such blower mounted thereon |
| 04/12/2007 | WO2007040179A1 Blower and electric device with such blower mounted thereon |
| 04/12/2007 | US20070081888 Series fans with flow modification element |
| 04/12/2007 | DE10191077B4 Gekrümmtes Gebläserohr Curved blower tube |
| 04/11/2007 | EP1771663A1 Method for modifying a turbocompressor |
| 04/11/2007 | CN2888141Y Fan employing pulse width modulation to control rotation speed |
| 04/10/2007 | US7202624 Self calibrating fan |
| 04/10/2007 | US7201220 Air-conditioning unit without air-mix door |
| 04/05/2007 | DE102005045137A1 Operation method e.g. for fan with defined characteristics, involves having fan unit with given constant air volume and comparing motor speed and voltage with target values and adjusting motor voltage as necessary |
| 04/04/2007 | EP1770255A1 Cooling device for a vehicle |
| 04/04/2007 | CN2886142Y Human body comfort induction controlled electric fan |
| 04/04/2007 | CN1942656A Gas turbine with a compressor housing which is protected against cooling down and method for operating a gas turbine |
| 04/03/2007 | US7198455 Vacuum pumping arrangement |
| 04/03/2007 | US7198076 Air pump assembly for inflating and deflating an inflatable article |
| 03/29/2007 | DE102005045283A1 Vakuumpumpsystem The vacuum pumping system |
| 03/28/2007 | EP1767790A2 Vacuum pump system |
| 03/28/2007 | CN1938520A Method for detecting operation errors of a pump aggregate |
| 03/28/2007 | CN1936340A Scavenger |
| 03/28/2007 | CN1936339A Electric-fan swing-angle regulation controller |
| 03/27/2007 | US7195449 Fan |
| 03/22/2007 | US20070066209 Fan with laminar flow element in front of the suction hole |
| 03/21/2007 | CN1932300A Fan control system and method |
| 03/20/2007 | US7191826 Variable speed fan motor control for forced air heating/cooling system |
| 03/20/2007 | CA2332470C Process for the early detection of aerodynamic instabilities in a turbomachine compressor |
| 03/15/2007 | WO2007010170A3 Fast energy-saving chamber pumping |