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