| Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590) |
|---|
| 05/13/2009 | EP2058524A1 Air bleed compressor with variable guide vanes |
| 05/13/2009 | CN201236381Y Municipal drainage pump station collecting well fluid level control energy-saving apparatus |
| 05/13/2009 | CN100488018C Electric powder converting apparatus and control method for the apparatus |
| 05/07/2009 | WO2009058975A1 Control system |
| 05/07/2009 | WO2009057598A1 Control method for dual counter-rotating type axial blower |
| 05/07/2009 | WO2009056606A1 Turbomolecular pump |
| 05/07/2009 | WO2009056394A1 Turbocharger having a compressor housing for adjusting a pre-swirl |
| 05/07/2009 | WO2009055878A2 Method to avoid instable surge conditions with centrifugal compressors and centrifugal compressors provided with means for automatically applying such a method |
| 05/07/2009 | DE102007051845A1 Turbolader und Verfahren zum Erzeugen eines Vordralls vor einem Verdichter des Turboladers Turbocharger and method for generating a pre-whirl in front of a compressor of the turbocharger |
| 05/07/2009 | DE102007051844A1 Turbolader mit einem Verdichtergehäuse zum Einstellen eines Vordralls Turbocharger with a compressor housing for setting a pre-swirl |
| 05/06/2009 | EP2055961A1 Asymmetric flow extraction system |
| 05/06/2009 | CN201232651Y Cycling intermission electric fan |
| 05/06/2009 | CN201232650Y Fan with rotating function along human |
| 05/06/2009 | CN101424273A Cooling fan drive system |
| 05/06/2009 | CN100485580C Fan rotary speed control device using a microprocessor |
| 05/02/2009 | WO2009015635A2 Closed-loop control for a gas turbine with actively stabilized compressor |
| 04/30/2009 | DE102008024133A1 Device for adaptive control of fans of computer, has fan, operating parameter converter, speed sensor pulse converter and set point voltage value converter with regulating and controlling device |
| 04/29/2009 | EP2053249A2 Assembly with vacuum pump and method |
| 04/29/2009 | CN101421519A Multi-stage compression system and method of operating the same |
| 04/29/2009 | CN101419473A Control method of blower motor and blower motor system |
| 04/29/2009 | CN101418808A Multi-vane cycling air blowing and sucking flow control method for aviation turbofan engine compression system |
| 04/29/2009 | CN101418807A Governor for AC blower fan |
| 04/29/2009 | CN101418806A Booster of permanent magnet motor |
| 04/29/2009 | CN100482950C Non-axisymmetric blade tip actuation generator |
| 04/23/2009 | WO2009050178A2 Methods and apparatuses for cooling and/or liquefying a hydrocarbon stream; method for accommodating a reduction of available driver power; and method of reducing a decrease in the production range of a cooled hydrocarbon stream |
| 04/23/2009 | WO2009050175A1 Method and apparatus for controlling a refrigerant compressor, and use thereof in a method of cooling a hydrocarbon stream |
| 04/23/2009 | WO2009004291A3 Measuring pressure |
| 04/22/2009 | EP2050969A1 Guide device for blowers |
| 04/22/2009 | EP2050943A1 Control device for internal combustion engine with supercharger |
| 04/21/2009 | US7520717 Swirl generator for a radial compressor |
| 04/21/2009 | US7520716 Vane system equipped with a guiding mechanism for centrifugal compressor |
| 04/16/2009 | WO2009046504A1 Improved turbo-compressor |
| 04/15/2009 | EP1723336B1 Cryogenic fluid pumping system |
| 04/15/2009 | CN201222717Y Flame-proof and essential safety type duplicate-supply variable-frequency control device for coal mine fan |
| 04/15/2009 | CN201221484Y Swinging angle regulator for electric fan |
| 04/15/2009 | CN201221483Y Proportional digital valve type water pump vane adjusting device |
| 04/15/2009 | CN201221482Y Sound control electric fan |
| 04/15/2009 | CN101408186A Fan control device and method as well as multiple-fan control device and method |
| 04/15/2009 | CN101408181A Photovoltaic electric DC exhaust fan for air conditioner |
| 04/08/2009 | EP2044331A1 Method for determining a statement of a state of a turbomolecular pump and a turbomolecular pump |
| 04/08/2009 | EP1853825B1 Turbocharger having compressor with ported second-stage shroud |
| 04/08/2009 | EP1846660B1 Method for optimizing the functioning of a plurality of compressor units and corresponding device |
| 04/08/2009 | CN201219074Y Down-hole local fan wind power closedown time-delay power transmission apparatus |
| 04/08/2009 | CN201218218Y Temperature controlled fan controller and temperature controlled fan |
| 04/08/2009 | CN201218217Y Mining flame-proof and intrinsically safety type fan automatic speed regulation apparatus |
| 04/08/2009 | CN101403391A Novel duplicate-power double-fan intelligent monitoring protection device |
| 04/02/2009 | WO2009041851A1 Method for monitoring the operating modes of a compressor and a device for carrying out said method |
| 04/02/2009 | WO2009040513A2 Compressor |
| 04/02/2009 | US20090087298 Compressor and heat pump system |
| 04/01/2009 | EP2042743A1 A gas compression system, a method for controlling a gas compression system, and a device for controlling a recycle valve |
| 04/01/2009 | CN201215099Y Intelligent efficacy energy-conserving end device for blower fan water pump |
| 04/01/2009 | CN101400897A Fan apparatus, electronic apparatus, and control method for them |
| 04/01/2009 | CN101399517A Linear type fan rotation speed characteristic design circuit |
| 04/01/2009 | CN101399099A Fan speed adjusting resistance |
| 04/01/2009 | CN101398009A Gas flow control device |
| 04/01/2009 | CN101398008A Automatic angle adjusting device for electric fan |
| 04/01/2009 | CN101398007A Energy-saving speed regulation method and device for high power fluid machinery |
| 04/01/2009 | CN100473841C Sealing system of radial compressor for treating vulnerability gas |
| 04/01/2009 | CN100473839C Ceiling fan |
| 03/26/2009 | WO2009037255A1 Vacuum pump |
| 03/26/2009 | WO2009015635A3 Closed-loop control for a gas turbine with actively stabilized compressor |
| 03/26/2009 | US20090081056 Molecular Pump And Flange |
| 03/26/2009 | CA2698485A1 A vacuum pump |
| 03/26/2009 | CA2693158A1 Method and system for fluid transmission along significant distances |
| 03/25/2009 | EP1709333B1 Vane system equipped with a guiding mechanism for centrifugal compressor |
| 03/24/2009 | US7506508 Compressor in an exhaust gas turbocharger of an internal combustion engine and method for operating the compressor |
| 03/19/2009 | WO2008049818A3 Method and apparatus for controlling the turndown of a compressor for a gaseous hydrocarbon stream |
| 03/19/2009 | DE102007044073A1 Gebläse mit stufenlos regelbarer Gasmenge sowie Verwendung eines solchen Gebläses Blower with variable amount of gas and the use of such a fan |
| 03/18/2009 | CN201209568Y Energy-conserving high-efficiency operation control system for header pumps |
| 03/18/2009 | CN101387306A Turbine gas compressor surge-proof control device |
| 03/17/2009 | CA2532564C Gas compressor |
| 03/12/2009 | US20090064679 Variable geometry turbine |
| 03/11/2009 | EP2033057A1 Device and method for performing a functional test on a control element of a turbo engine |
| 03/11/2009 | CN101382144A Fan with sensing element and method for making same |
| 03/11/2009 | CN100467877C Vane system equipped with a guiding mechanism for centrifugal compressor |
| 03/05/2009 | WO2009028009A1 Fan controller for reducing beating sound from a plurality of fans |
| 03/05/2009 | WO2009027623A1 Improvements in compressor control |
| 03/05/2009 | US20090060739 Fan Blade Pitch Change Assembly |
| 03/05/2009 | US20090060708 Radial flow compressor for a turbo-supercharger |
| 03/05/2009 | US20090060705 Sanitary Air Jet Device |
| 03/05/2009 | US20090057043 Variable Pitch Radiator Fan Control System |
| 03/05/2009 | CA2698159A1 Improvements in compressor control |
| 03/04/2009 | CN201202861Y Deep well water pump control valve |
| 03/04/2009 | CN201202670Y Temperature control type electric fan |
| 03/04/2009 | CN201202669Y Hydraulic drive fan controller |
| 03/04/2009 | CN100466411C Fan protective device and method |
| 03/04/2009 | CN100465456C An electric fan head tilting angle regulating device |
| 02/26/2009 | WO2009024740A1 Improvements in compressors control |
| 02/26/2009 | WO2008086957A3 Method for liquefying a hydrocarbon-rich flow |
| 02/26/2009 | US20090055071 Active surge control |
| 02/26/2009 | CA2696868A1 Improvements in compressors control |
| 02/25/2009 | EP1436510B1 Method for optimizing the operation of several compressor units in a natural gas compression station |
| 02/25/2009 | CN201198838Y Fan speed-regulating alarming device |
| 02/25/2009 | CN101372984A Fan system and motor control device |
| 02/25/2009 | CN101372983A Fan for protecting human body |
| 02/25/2009 | CN101372982A Drive tandem explosion-proof fan with two built-in electric motors |
| 02/19/2009 | US20090047117 Flow control arrangement |
| 02/19/2009 | DE102008036735A1 Lüftersystem und Lüfter mit Filter System fan and fan with filter |
| 02/18/2009 | EP2025945A2 Flow working machine with ring canal wall fitting |
| 02/18/2009 | EP2025896A2 Centrifugal compressor for a turbocharger |