Patents
Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590)
01/2004
01/22/2004US20040013531 Variable speed pump control
01/21/2004EP1382855A2 Turbomachine with integrated fluid recirculation system
01/21/2004CN2600626Y Shunt fan station with automatic controlled throttle
01/21/2004CN1469001A Method and apparatus for continuous mercerizing textile yarns
01/21/2004CN1135338C Air conditioner
01/15/2004US20040009074 Fan control system
01/15/2004US20040009061 Compressors
01/15/2004DE20220578U1 Druckerzeuger für strömende Medien Pressure generator for flowing media
01/15/2004DE20220577U1 Druckerzeuger für strömende Medien Pressure generator for flowing media
01/15/2004DE10315143A1 Vorrichtung und Verfahren zur Belüftung eines Raumes Apparatus and method for ventilating a space
01/15/2004DE10218459B3 Verdichter in mehrstufiger Axialbauart Compressor in multistage axial type
01/14/2004EP1228317B1 Axial fan
01/13/2004US6676367 Regenerative pumps
01/13/2004US6675594 Cooling system and cooling method
01/08/2004US20040005218 Two-piece safety mechanism for ceiling fans
01/07/2004EP1377752A2 Turbomolecular pump
01/07/2004CN2597716Y Fan
01/06/2004US6674369 Fan control circuit
01/06/2004US6672826 Compressor surge control apparatus
01/06/2004CA2321640C Compressor endwall bleed system
01/03/2004CA2434855A1 Two-piece safety mechanism for ceiling fans
01/02/2004EP0871853B1 Surge prevention control system for dynamic compressors
01/01/2004US20040001764 Heat-dissipating fan with manually adjustable speed-setting
12/2003
12/31/2003CN2596076Y Improved structure of switch of multi-functional ceiling fan
12/30/2003US6671657 Method for calculating characteristic curve of centrifugal fluid machine by computer
12/30/2003US6669440 Dual-chamber air pump
12/25/2003US20030234630 Fan speed control system
12/25/2003US20030233822 Compressor in a multi-stage axial form of construction
12/24/2003DE20315282U1 Cooling fan e.g. for computer, has rotation speed control circuitry, and rotary knob or pushbutton attached to outside of cooling fan to allow user to control speed directly
12/18/2003US20030231954 Sealing system for centrifugal compressors which process lethal gases
12/11/2003US20030226346 Process and device for the continuous mercerizing of textile yarns
12/10/2003EP1369594A2 Sealing system for centrifugal compressors
12/10/2003EP1369592A2 Gas extraction device for an axial compressor
12/10/2003EP1369521A2 Process and device for the continuous mercerizing of textile yarns
12/10/2003CN1461387A High pressure multi-stage centrifugal compressor
12/10/2003CN1460786A 燃气涡轮机控制装置 The gas turbine control apparatus
12/10/2003CN1130533C Methods and apparatus for detecting surge in centrifugal compressors
12/09/2003US6661144 Electromotive drive
12/09/2003US6659721 High efficiency ceiling fan blades
12/04/2003WO2003100259A1 Variable speed vacuum pump control method and apparatus
12/04/2003US20030225542 Electronic fan capable of automatic fan speed adjustment according to ambient temperature conditions
12/04/2003US20030225480 Electric fan operable in a breeze-simulating mode
12/04/2003US20030223877 Blower assembly with closed-loop feedback
12/03/2003CN1459573A Turbocompressor and volum controlling method thereof
12/02/2003US6657346 Device for detecting the rotating speed of a fan motor
12/02/2003US6655632 System and method for actively changing an effective flow-through area of an inlet region of an aircraft engine
11/2003
11/27/2003US20030219342 Speed control of variable speed control pump
11/27/2003US20030219335 Turbo-compressor and capacity control method thereof
11/26/2003EP1365155A1 Turbo-compressor and capacity control method therof
11/26/2003EP0855923B1 Flow estimation in cpap treatment and assisted respiration
11/26/2003CN2588086Y Ceiling fan with foreward/rearward rotation controller
11/26/2003CN2588085Y ELectric fan
11/26/2003CN2588084Y Blowing rate adjustable blast blower
11/26/2003CN2588083Y Electronic automatic timing speed-adjusting controller for electric fan
11/26/2003CN1459054A Process and device for flow control of electrical motor fan
11/20/2003US20030215339 Multi-stage gas compressor system
11/20/2003CA2398800A1 Multi-stage gas compressor system
11/19/2003EP1123457B1 Gas turbine engine
11/19/2003CN2586835Y Rotational speed governor for power type fan
11/19/2003CN1456815A Display device for fan status
11/18/2003US6648594 Turbocharger
11/13/2003US20030210994 Inflation/deflation device having spring biased valve
11/11/2003US6644938 Turbo molecular pump
11/11/2003US6644922 Variable pitch fan
11/06/2003WO2003028841A3 Optimization of multiple compressor trains
11/06/2003US20030206801 Electric fan
11/05/2003CN1453478A Method of controlling the operation state of electric fan
11/05/2003CN1453452A Compressor with multi-stage axial structure mode
10/2003
10/30/2003WO2003078838B1 Vacuum pump control device, and vacuum device
10/30/2003WO2003055030A8 Method for detecting a defective cooling fan and for generating an alarm signal
10/29/2003EP1357295A2 Multi-stage axial flow compressor
10/29/2003CN2583406Y Automatic scavenger fan
10/28/2003US6638029 Pressure ratio modulation for a two stage oil free compressor assembly
10/28/2003US6638028 Stovetop blower apparatus for preventing boil over
10/22/2003CN2581732Y Remote stepless speed-regulating electric fan
10/22/2003CN1450271A Sash
10/21/2003US6634174 Exhaust gas turbocharger for an internal combustion engine and a corresponding method
10/16/2003WO2003085268A1 Vacuum pump
10/16/2003US20030193307 Method and apparatus for controlling a fan
10/15/2003EP1353091A1 Toroidal continuously variable transmission
10/09/2003WO2003083275A1 Variable exhaust gas turbocharger
10/09/2003US20030190229 Compressor surge control apparatus
10/08/2003CN1447030A Method for reducing noise of equipments based on control of fan rotate speed
10/02/2003US20030185272 Radiation temperature measuring apparatus and turbo-molecular pump equipped with the same
10/02/2003US20030183287 Rapid inflation and venting air valve of airbed
10/01/2003EP1348940A2 Radiation temperature measuring apparatus and turbo-molecular pump equipped with the same
09/2003
09/30/2003US6626653 Backup heat-dissipating system
09/25/2003WO2003078838A1 Vacuum pump control device, and vacuum device
09/25/2003US20030182024 Method for controlling operation of an electric fan
09/24/2003EP1346620A1 Fan protection
09/24/2003EP1346139A2 Method and apparatus for turbogenerator anti-surge control
09/24/2003CN2575338Y Combined sealing apparatus
09/23/2003US6625573 Method and apparatus of molecular weight determination for gases flowing through the compressor
09/23/2003US6622475 Bleed system driven in simplified manner for a turbojet or turboprop engine
09/18/2003US20030175128 High-pressure multi-stage centrifugal compressor
09/18/2003US20030175117 Fluid-flow machine with high-pressure and low-pressure regions
09/18/2003US20030175115 Vacuum pump
09/18/2003US20030175113 Turbo-molecular pump
09/18/2003US20030175112 Vacuum pump system and vacuum pump RPM control method
09/18/2003US20030172883 Control method for outside control type fan coupling apparatus
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