| 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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| 11/26/2008 | CN101311554A Three-factor matching method for improving energy efficiency for blade type fluid machinery |
| 11/26/2008 | CN101311547A Control circuit of blower for vehicle air conditioning |
| 11/26/2008 | CN101310650A Aerating device |
| 11/26/2008 | CN100436831C Switching unit of radiator system |
| 11/26/2008 | CN100436757C Variable diffuser with movable wall |
| 11/25/2008 | US7455239 Cooling system for an internal combustion engine of a motor vehicle |
| 11/20/2008 | WO2008138075A1 Method for controlling a turbocompressor |
| 11/20/2008 | US20080286087 System and a Method for Capacity Control in a Screw Compressor |
| 11/19/2008 | EP1629204B1 Pressure relief arrangement for a pump |
| 11/19/2008 | CN201152273Y Remote multi-point pump control device |
| 11/19/2008 | CN201152272Y Control device for rotation angle of arbitrary angle electric fan |
| 11/19/2008 | CN101308373A Fan monitoring apparatus |
| 11/19/2008 | CN101308366A Fan speed-changer |
| 11/18/2008 | CA2232083C Flow estimation and compensation of flow-induced pressure swings in cpap treatment and assisted respiration |
| 11/12/2008 | EP1990584A2 Airflow control for variable speed blowers |
| 11/12/2008 | EP1990520A2 Turbine anti-rotating stall schedule |
| 11/12/2008 | CN101303021A Apparatus and method for temperature self-adaptive control fan |
| 11/11/2008 | US7448845 Gas turbine engine |
| 11/06/2008 | WO2008133240A1 Fan control system |
| 11/06/2008 | US20080273995 Apparatus for Inhibiting the Propagation of a Flame Front |
| 11/06/2008 | DE102004024948B4 Abgasturbolader Exhaust gas turbocharger |
| 11/05/2008 | CN201146480Y Fan DC motor controller |
| 11/05/2008 | CN201144849Y Intelligent energy-saving axial flow fan |
| 11/05/2008 | CN201144848Y AC/DC speed governing blast blower |
| 11/05/2008 | CN201144847Y Control device for fan |
| 11/05/2008 | CN201144846Y Fan with booking and timing functions |
| 11/05/2008 | CN201144845Y Blast aerator for sewage disposal |
| 11/04/2008 | US7444814 Internal combustion engine having a compressor in the induction system and method for this |
| 10/30/2008 | US20080267790 Electronically Controlled Vacuum Pump |
| 10/30/2008 | US20080267765 Centrifugal Compressor with a Re-Circulation Venturi in Ported Shroud |
| 10/29/2008 | EP1985863A2 Surge detection in a gas turbine engine |
| 10/29/2008 | EP1985862A1 Controlling operation of a compressor to avoid compressor instability |
| 10/29/2008 | EP1984628A1 Multi-stage compression system and method of operating the same |
| 10/29/2008 | CN201142660Y Motor control device |
| 10/29/2008 | CN201142257Y Fan timing resistor |
| 10/29/2008 | CN101294577A Ventilation fan with illumination instrument and human motion perception sensor |
| 10/29/2008 | CN100429407C Stability control system and method for centrifugal compressors operating in parallel |
| 10/23/2008 | WO2008126253A1 Fan noise reduction device and method of reducing fan noise |
| 10/22/2008 | EP1745215B1 Compressor having an adjustable diffuser wall and method therefor |
| 10/22/2008 | EP1718868B1 A pumping system |
| 10/22/2008 | CN201138512Y Remote controlling device for switching hanging fan |
| 10/22/2008 | CN201137579Y Auxiliary blower automatic control system |
| 10/22/2008 | CN101290524A Fan circuit |
| 10/22/2008 | CN100428052C Liquid crystal projector |
| 10/22/2008 | CN100427767C Pressure relief arrangement for a pump |
| 10/22/2008 | CN100427738C Gas turbine controller |
| 10/22/2008 | CN100427737C Gas turbine controller |
| 10/21/2008 | US7437798 Air reflux assembly of the vacuum cleaner |
| 10/16/2008 | US20080253877 Control system |
| 10/15/2008 | EP1980754A2 Compressor and compressor housing |
| 10/15/2008 | EP1979615A1 Airflow compressor control system and method |
| 10/15/2008 | EP1442222B1 Vacuum pump |
| 10/15/2008 | CN201133361Y Programme controlled heat radiation fan |
| 10/15/2008 | CN101285478A Fan rotation speed control device and rotation speed control method |
| 10/15/2008 | CN101285477A Ventilation fan |
| 10/09/2008 | US20080247879 Cooling Fan Module for a Motor Vehicle |
| 10/08/2008 | EP1654462B1 Gas compressor |
| 10/08/2008 | EP1247986B1 Method for calculating characteristic curve of centrifugal fluid machine by computer |
| 10/08/2008 | CN201129314Y Electric fan with tilting protecting equipment |
| 10/08/2008 | CN201129313Y Sickroom ventilation fan automatic control device |
| 10/08/2008 | CN101280786A Fan monitoring apparatus |
| 10/07/2008 | CA2507409C Variable geometry diffuser mechanism |
| 10/02/2008 | WO2008118723A1 Method for detecting rotating stall in a compressor |
| 10/02/2008 | US20080240931 Method for Determining Faults During the Operation of a Pump Unit |
| 10/02/2008 | US20080239665 Cooling fan module |
| 10/01/2008 | EP1974146A2 Reverse rotation prevention device |
| 10/01/2008 | CN101275579A Fan system containing fan control device and fan control method |
| 09/30/2008 | US7428819 Method for the operation of a compressor of a gas turbine with evaporative cooling of the compressor induction air |
| 09/30/2008 | US7428815 Method of operating a compressor near the compressor pumping limit and compressor |
| 09/30/2008 | CA2492465C Stability control system and method for centrifugal compressors operating in parallel |
| 09/25/2008 | US20080232952 Compressor with Controllable Recirculation and Method Therefor |
| 09/25/2008 | DE19833040B4 Turbomolekularpumpe Turbomolecular pump |
| 09/24/2008 | CN201121606Y Wall-hanging fan swinging control device |
| 09/24/2008 | CN201121601Y Fan for driving mosquitoes and flies off |
| 09/24/2008 | CN201121600Y Novel built-in manual setting electric air pump |
| 09/24/2008 | CN101270755A Timing and switching method for controlling water pump fan parallel-connection energy-saving operation |
| 09/23/2008 | US7426829 Vane control |
| 09/18/2008 | WO2008110177A1 Method and system for ventilation control |
| 09/17/2008 | EP1970542A2 Throttle-dependent blade adjustment for turbo machines |
| 09/17/2008 | CN201116529Y Ammonia compressor bushing temperature interlocking control system |
| 09/17/2008 | CN101268281A Multi-stage compression system including variable speed motors |
| 09/17/2008 | CN101265916A Electric fan speed governing control system and method |
| 09/16/2008 | US7425119 Electrical charge air compressor provided with an integrated air cooling system |
| 09/10/2008 | EP1967739A2 Device for hydraulic adjustment of the rotor blades of a wheel of an axial ventilator |
| 09/10/2008 | EP1966000A1 Fan arrangement in a motor vehicle |
| 09/10/2008 | CN100417818C Centrifugal compressor for turbine refrigerator, turbine refrigerator and control method thereof |
| 09/09/2008 | US7421854 Automatic start/stop sequencing controls for a steam turbine powered chiller unit |
| 09/09/2008 | US7421853 Enhanced manual start/stop sequencing controls for a stream turbine powered chiller unit |
| 09/04/2008 | US20080210317 Dynamically Controlled Compressors |
| 09/03/2008 | EP1963681A2 A motor, a method of operating a motor, and a system including a motor |
| 09/03/2008 | CN201110272Y Solar electric fan |
| 09/03/2008 | CN201110271Y DC brushless evaporation fan for bus air conditioner non position sensor |
| 09/03/2008 | CN101255621A Negative pressure control method for compact spinning negative pressure system |
| 08/28/2008 | WO2008101752A1 Method for determining the fatigue of a pump rotor of a gas turbopump |
| 08/28/2008 | US20080206040 Anti-Stall Casing Treatment For Turbo Compressors |
| 08/28/2008 | US20080206039 Tip clearance control system |
| 08/28/2008 | CA2676681A1 Method for determining the fatigue of a pump rotor of a gas turbopump |
| 08/27/2008 | EP1961964A2 Centrifugal air compressor |
| 08/27/2008 | EP1961920A1 Casing with casing treatment, compressor and turbomachine including such a casing |
| 08/27/2008 | EP1960674A1 Ported shroud with filtered external ventilation |