| 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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| 09/06/2000 | CN2395305Y Automatic monitoring and controlling device for large rotary machinery |
| 09/05/2000 | US6113351 Variable pitch fan |
| 08/31/2000 | DE19907907A1 Mehrstufiger Turboverdichter A multi-stage centrifugal compressor |
| 08/29/2000 | US6109868 Reduced-length high flow interstage air extraction |
| 08/24/2000 | WO2000022287A3 Gas turbine engine |
| 08/23/2000 | EP1030062A2 Turbo-molecular pump |
| 08/23/2000 | CN2392935Y Wind-speed swich-over device of domestic electric fan |
| 08/22/2000 | US6106227 Roller assembly for guiding an actuating ring |
| 08/16/2000 | CN2392011Y Remote control device for electric fan and lighting and function displaying |
| 08/16/2000 | CN1055529C NC adjusting and metering fan |
| 08/10/2000 | WO2000046509A1 Compressor bleeding using an uninterrupted annular slot |
| 08/09/2000 | EP1026567A1 Process and installation for regulating a central vacuum production center for medical use |
| 08/09/2000 | CN2391038Y Oscillation amplitude regulator for electric appliance |
| 08/08/2000 | US6099168 Composite roller bearing for variable pipe diffuser |
| 08/03/2000 | WO2000050748A1 Combustion unit for combusting a liquid fuel and a power generating system comprising such combustion unit |
| 08/03/2000 | WO2000045055A1 Electromotive drive |
| 08/03/2000 | WO2000020740B1 Gas turbine engine |
| 08/02/2000 | EP1024295A1 Electric motor drive |
| 08/02/2000 | CN2390040Y Hanging remote-controlled fan |
| 08/02/2000 | CA2296050A1 Process and system for regulating the production of vacuum lines in hospital buildings |
| 08/01/2000 | US6097171 Method and apparatus for controlling an induction motor |
| 07/26/2000 | EP0654163B1 Process and device for monitoring vibrational excitation of an axial compressor |
| 07/26/2000 | CN2389244Y Rotary controller for wind guiding blade of box type electric fan |
| 07/26/2000 | CN1054902C Gas turbine apparatus and method of operating same |
| 07/25/2000 | US6092987 Stator assembly for a rotary machine |
| 07/25/2000 | CA2190697C Blower motor with adjustable timing |
| 07/20/2000 | WO2000042366A1 Adaptive hot gas bypass control for centrifugal chillers |
| 07/20/2000 | DE19901509A1 Adjustment method for flow processing machine blades involves additionally adjusting blades depending on mechanical loading of blades following blades of flow processing machine |
| 07/18/2000 | US6092029 Method and apparatus for diagnosing and controlling rotating stall and surge in rotating machinery |
| 07/13/2000 | DE19860828A1 Ion implantation equipment used for semiconductor manufacture, includes main controller which detects current level to generate control signal based on which ion implantation turbine pump operation is controlled |
| 07/12/2000 | CN2387293Y Fan speed regulator with protective function |
| 07/11/2000 | US6088508 Method of operating vacuum pump |
| 07/11/2000 | US6086326 Stator structure for a track opening of a rotary machine |
| 07/06/2000 | WO2000020740A3 Gas turbine engine |
| 07/06/2000 | DE19900077A1 Fan has regulating system that controls air flow strength or direction depending on time, temp. or program; clock integrated into system e.g. reduces fan speed incrementally every hour |
| 07/06/2000 | DE19860639A1 Verfahren zum Betreiben eines Kompressors mit nachgeschaltetem Verbraucher, und nach dem Verfahren arbeitende Anlage A method of operating a compressor with downstream consumers, and by the method operating plant |
| 07/05/2000 | EP1016787A2 Operating method of a compressor having a downstream user, and system operating according to this method |
| 07/05/2000 | CN1258819A Fan speed controller and control method |
| 07/05/2000 | CN1258818A Stepless fan speed temperature controller and control method |
| 06/28/2000 | EP1013937A2 Rotor tip bleed in gas turbine engines |
| 06/22/2000 | WO2000035701A1 System for energy recovery in electric fans for car radiators |
| 06/22/2000 | CA2318149A1 System for energy recovery in electric fans for car radiators |
| 06/21/2000 | DE19958064A1 Regenerative pump with housing having fluid inlet and outlet has impeller rotatably located in housing with first grooves formed on at least one side |
| 06/21/2000 | DE19940020A1 Zwischenstufen-Luftentnahme Interstage air extraction |
| 06/21/2000 | DE19911036C1 Regulator for controlling heating and air conditioning appliances in motor vehicles incorporates an electrically commutated DC motor driving a suction fan with a temperature measuring probe in its suction air current. |
| 06/20/2000 | US6076423 Bellcrank mechanism |
| 06/15/2000 | DE19857453A1 Device for monitoring temperatures in vacuum pump rotors includes a heatable temperature sensor fitted at a point in the vacuum pump to allow its setting to compare its Knudsen flow with that around the rotor. |
| 06/14/2000 | EP1008758A2 Fluid compressors |
| 06/14/2000 | EP1008757A2 Controlling stall margin in a gas turbine engine during acceleration |
| 06/14/2000 | EP1007832A1 Device for compressing a gaseous medium and systems comprising such device |
| 06/08/2000 | DE19856275A1 Charging air compressor for motor vehicle engine has compressed air outlet, inlet coaxial to inlet opening of guide blade rim with blades parallel to axis with surfaces inclined to radius |
| 06/06/2000 | US6070660 Variable speed fan motor control for forced air heating/cooling system |
| 06/06/2000 | US6070404 Gaseous fuel compression and control method |
| 05/31/2000 | CN2380729Y Air-intaking regulation device of air-compressor |
| 05/25/2000 | WO2000029751A1 Low aspect ratio compressor casing treatment |
| 05/24/2000 | EP1002361A1 Circuit |
| 05/24/2000 | CN2379629Y Means for indicating stage of blowing speed of electric fan |
| 05/23/2000 | US6067032 Method of detecting stalls in a gas turbine engine |
| 05/23/2000 | US6066935 Pole-changing asynchronous fan motor with continuously adjustable speed |
| 05/18/2000 | DE19851523C1 Fan for compressible delivery medium has arrangement for deriving volume flow from pressure, temperature and rotor speed measurement values |
| 05/17/2000 | CN2378559Y Swinging angle regulation intensifier for epicyclic train |
| 05/17/2000 | CN2378558Y Speed regulating computer controller for hanging fan |
| 05/09/2000 | US6059522 Compressor stall diagnostics and avoidance |
| 05/03/2000 | EP0996877A1 An apparatus and method for regulating a pressure in a chamber |
| 04/26/2000 | CN2375797Y Speed regulator for electric fan |
| 04/26/2000 | CN2375796Y Remote control device for exhaust fan |
| 04/25/2000 | US6054823 Verification of fan operation |
| 04/20/2000 | WO2000022287A2 Gas turbine engine |
| 04/20/2000 | CA2345341A1 Gas turbine engine |
| 04/18/2000 | US6050780 Method for driving a high speed compressor |
| 04/13/2000 | WO2000020740A2 Gas turbine engine |
| 04/13/2000 | CA2345293A1 Gas turbine engine |
| 04/11/2000 | US6048171 Bleed valve system |
| 04/06/2000 | WO2000019105A1 Multiple centrifugal air compressor system control |
| 03/23/2000 | WO2000015949A1 Apparatus for adjusting angle of blade of rotating body |
| 03/21/2000 | US6039541 High efficiency ceiling fan |
| 03/21/2000 | US6039534 Inlet guide vane assembly |
| 03/14/2000 | US6037723 Air control system for an air bed |
| 03/14/2000 | US6036432 Method and apparatus for protecting centrifugal compressors from rotating stall vibrations |
| 03/01/2000 | EP0982500A2 Vacuum pump and vacuum apparatus |
| 03/01/2000 | CN1245872A Electronic automatic controller for water pump |
| 03/01/2000 | CN1245871A Fan control method and device |
| 03/01/2000 | CN1049971C Method of controlling starting of compressor in air conditioner |
| 02/29/2000 | US6030181 Vacuum apparatus and a method of controlling a suction speed thereof |
| 02/24/2000 | WO2000010244A1 Circuit for regulating the rotational speed of a fan |
| 02/23/2000 | EP0980980A2 Control system for modulating bleed in response to engine usage |
| 02/10/2000 | WO2000006910A1 Rotation device with drive motor |
| 02/08/2000 | US6023138 Fan venturi blockage detection |
| 02/08/2000 | US6022195 Electronically controlled vacuum pump with control module |
| 02/03/2000 | DE19834530A1 Venting valve for compressor in gas turbine engine has the axially moving valve ring guided on a fixed seal to prevent tilting |
| 02/03/2000 | DE19816987A1 Adaptierte Pumpgrenze eines Kreiselverdichters Adapted pumping limit of a centrifugal compressor |
| 02/02/2000 | CN2361887Y Electronic temp. control switch for electric fan |
| 01/27/2000 | DE19932433A1 Economy improvement process for displacement compressors, involving charging normally free-induction compressors using low-pressure centrifugal pre-compressors |
| 01/26/2000 | EP0974756A2 Vacuum pump and vacuum apparatus |
| 01/26/2000 | EP0974189A1 Fan cooler |
| 01/20/2000 | DE19928536A1 Industrial blower with adjustable blades uses blower speed sensor linked to blade interval regulator so cylinder unit adjuster modifies blade interval according to blower speed |
| 01/19/2000 | CN2359504Y Manual regulation stepless angulator for electric fan |
| 01/18/2000 | US6015274 Low profile ceiling fan having a remote control receiver |
| 01/18/2000 | US6015263 Fluid moving device and associated method |
| 01/13/2000 | DE19828368A1 Verfahren zum Betreiben von Turboverdichtern mit mehreren sich gegenseitig beeinflussenden Reglern A method of operating turbo compressors with several interacting controllers |