| 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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| 06/04/2008 | CN201068875Y Ceiling fan with electronic dynamic pattern display apparatus |
| 06/03/2008 | CA2493197C System and method for detecting rotating stall in a centrifugal compressor |
| 05/29/2008 | US20080124226 Energy-conserving ventilating fan |
| 05/29/2008 | DE10326606B4 Verfahren zur Kommutierung eines bürstenlosen Gleichstrommotors Method for commutation of a brushless DC motor |
| 05/28/2008 | CN201065395Y Voltage stabilizing device for condensation blower major cycle system |
| 05/28/2008 | CN101185944A Method for preventing hot rolling stainless steel band from rolling cuts and device thereof |
| 05/28/2008 | CN100391322C Display device for fan status |
| 05/22/2008 | WO2008059665A1 Ceiling fan |
| 05/22/2008 | US20080118349 Variable Geometry Compressor |
| 05/21/2008 | EP1616385B1 Motor driver, motor driven by the motor driver, and apparatus employing the motor |
| 05/21/2008 | CN201062590Y Ventilation fan switch box |
| 05/21/2008 | CN201062589Y Electric fan double-control energy-saving speed governor |
| 05/21/2008 | CN101184921A Method of operating a pumping system |
| 05/20/2008 | US7374394 Multifunctional back-flowing strong-suction blower |
| 05/15/2008 | WO2008056782A1 Turbo refrigeration device and method of controlling the same |
| 05/15/2008 | CA2652708A1 Flow-control technique to vector bulk flow leaving a vane |
| 05/14/2008 | EP1921291A2 Gas turbine engine providing simulated boundary layer thickness increase |
| 05/14/2008 | EP1920161A1 Vacuum turbomolecular pump |
| 05/14/2008 | CN201059278Y Moving cantilever type air volume controlled unit ventilator |
| 05/14/2008 | CN201059276Y Electric fan |
| 05/14/2008 | CN101180468A Flow stabilization system for centrifugal compressor |
| 05/14/2008 | CN101178074A Pre-judging method for compressor surge |
| 05/13/2008 | CA2364761C Methods and apparatus for controlling bearing loads within bearing assemblies |
| 05/07/2008 | EP1668253B1 Detection of contaminants within fluid pumped by a vacuum pump |
| 05/07/2008 | EP1446581A4 Management and optimization of load sharing between multiple compressor trains for controlling a main process gas variable |
| 05/07/2008 | CN201057161Y Inflating control device of inflating telescopic doll |
| 05/07/2008 | CN101175922A Cooling fan with external circuit board |
| 05/07/2008 | CN101175393A Cooling device and method for acoustics equipment |
| 05/07/2008 | CN100386528C Method for forecasting surge in turbine compressor |
| 05/07/2008 | CN100386504C Integrated adaptive capacity control for a steam turbine powered chiller unit |
| 05/01/2008 | US20080101913 Plasma lifted boundary layer gas turbine engine vane |
| 04/30/2008 | CN201054468Y Toilet energy-saving switch |
| 04/30/2008 | CN201053408Y Household electric fan timely speed-variable device |
| 04/30/2008 | CN201053407Y Superthin type vertical type fan |
| 04/30/2008 | CN201053405Y Bidirectional air exchanging machine |
| 04/30/2008 | CN201053404Y Blower |
| 04/30/2008 | CN100385369C Apparatus and method for controlling rotation speed of multistage speed and intelligent fan |
| 04/30/2008 | CN100385124C Mix-in structure for gas or the like in pressurization centrifugal pump |
| 04/24/2008 | WO2008047162A1 Air extraction unit |
| 04/24/2008 | WO2008021632A3 Turbocharger systems and methods for operating the same |
| 04/24/2008 | US20080095612 Method And Regulation System For Monitoring A Compressor Of A Gas Turbine In Particular |
| 04/24/2008 | US20080092328 Air Reflux Assembley of the Vacuum Cleaner |
| 04/23/2008 | EP1478857B1 Compressor with an anti-stall tip treatment |
| 04/23/2008 | CN201050496Y Double mechanical core electronic alternating air pump for wavy massage jet mattress |
| 04/23/2008 | CN101165354A Fan rotation speed automatic control circuit |
| 04/22/2008 | CA2301036C Device for compressing a gaseous medium and systems comprising such device |
| 04/17/2008 | WO2008044314A1 Blower |
| 04/16/2008 | EP1912326A1 Current limiting device for electronic controllers or actuator of loads with non-linear current-voltage characteristic curve |
| 04/16/2008 | EP1910055A1 Blown film manufacturing installation and method for the operation thereof |
| 04/16/2008 | EP1252424B1 Method of operating a variable cycle gas turbine engine |
| 04/16/2008 | CN201047359Y Testing, alarming and ventilated full-automatic ventilating fan |
| 04/16/2008 | CN101163927A Air exhaust fan pressure regulating method for ventilation system, involves defining pressure-flow-rate curve between two points established previously corresponding to minimum pressure and maximum pr |
| 04/16/2008 | CN101163889A Turbocharger compressor having ported second-stage shroud, and associated method |
| 04/16/2008 | CN100382668C Fan combination and fan speed-governing method |
| 04/15/2008 | US7356999 System and method for stability control in a centrifugal compressor |
| 04/10/2008 | WO2008041450A1 Blower |
| 04/09/2008 | EP1908927A1 Method and apparatus for an aerodynamic stability management system |
| 04/09/2008 | CN201045302Y Main fan blower automatic transition air door |
| 04/03/2008 | WO2007116319A3 Bleed off valve system |
| 04/02/2008 | CN101155995A Method for optimizing the functioning of a plurality of compressor units and corresponding device |
| 04/02/2008 | CN100378338C Electromagnetic type bidirection air intake pump |
| 04/01/2008 | US7351137 Heat dissipating fan with manual adjustment rotational speed |
| 04/01/2008 | US7350356 Exhaust gas turbocharger for an internal combustion engine |
| 03/27/2008 | US20080075578 Method and apparatus for controlling the operation of a steam turbine |
| 03/27/2008 | DE202006017554U1 Vakuumpumpe Vacuum pump |
| 03/26/2008 | CN201041167Y Head-rocking angle control device for electric fan |
| 03/26/2008 | CN101149625A Speed control device and three terminal fan using the speed control device for controlling speed |
| 03/20/2008 | US20080069683 Methods and systems for controlling gas turbine clearance |
| 03/20/2008 | DE202007017773U1 Steuervorrichtung eines Kühlers Control device of a cooler |
| 03/20/2008 | DE19857453B4 Temperaturüberwachung an Rotoren von Vakuumpumpen Temperature control of rotors of vacuum pumps |
| 03/19/2008 | EP1900924A2 Bleed valve outlet flow deflector |
| 03/19/2008 | CN201039061Y Wind blower tray tube for three speed adjusting DC brushless motor |
| 03/13/2008 | US20080063515 Bleed system for a low-pressure compressor of a turbomachine |
| 03/12/2008 | EP1898098A2 Vacuum pump |
| 03/12/2008 | EP1898067A2 Liquid return in baffles of fluid-flow engines with bypass flow configuration |
| 03/12/2008 | EP1896708A1 Method for increasing aerodynamic stability of a working fluid of a compressor |
| 03/12/2008 | EP1759103B1 Method for operating a gas turbine compressor while cooling the compressor intake air by evaporation |
| 03/12/2008 | CN101139993A High power automatic detection wind-blower |
| 03/12/2008 | CN100374694C Fan rotational frequency control method |
| 03/11/2008 | US7341423 Molecular pump and connecting device |
| 03/06/2008 | WO2007140208A3 Systems and methods for regulating power in a medical device |
| 03/06/2008 | US20080056880 System and Method for Reducing Thrust Acting On Submersible Pumping Components |
| 03/06/2008 | US20080056879 System and Method for Reducing Thrust Acting On Submersible Pumping Components |
| 03/05/2008 | EP1576292B1 Vacuum pumping arrangement |
| 03/05/2008 | CN201031804Y Silent energy-saving scavenger fan |
| 03/05/2008 | CN101135315A Electric fan pendulum angle regulating device |
| 03/05/2008 | CN101135314A Ceiling fan triad control device |
| 02/27/2008 | EP1892399A2 Aero engine bleed valve |
| 02/27/2008 | CN201027684Y Intelligent warning system of fan |
| 02/27/2008 | CN201027683Y Fan monitoring system and reflow oven using the same |
| 02/27/2008 | CN201027682Y Air blower |
| 02/21/2008 | WO2008021632A2 Turbocharger systems and methods for operating the same |
| 02/20/2008 | EP1888922A1 Cooling fan with external circuit board |
| 02/20/2008 | EP1809908B1 Variable geometry compressor |
| 02/20/2008 | CN201025269Y Array fan |
| 02/20/2008 | CN101126392A Fan control method and device |
| 02/19/2008 | US7332842 Fan motor |
| 02/19/2008 | US7331760 Fan revolution speed control method |
| 02/19/2008 | CA2338648C Methods and apparatus for retaining flow restrictors within turbine engines |
| 02/19/2008 | CA2224855C Interchangeable plug-in circuit completion modules for varying the electrical circuitry of a ceiling fan |