| 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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| 12/16/1987 | CN86210433U Electronic clock for electric fan and natural wind electronic controller |
| 12/01/1987 | US4710095 Of a fluid stream having a gaseous phase and a liquid phase |
| 12/01/1987 | US4709666 Regulatable fan drive |
| 11/24/1987 | US4708587 Centrifugal compressor |
| 11/19/1987 | WO1987006981A2 Centrifugal superchargers |
| 11/10/1987 | US4705457 Monitoring of fluid flow |
| 11/07/1987 | CN86206729U Governor of electric fan |
| 11/07/1987 | CN85204379U Multifunction wireless remote control device for electric fan |
| 10/27/1987 | US4702070 Gas turbine engine valve control system |
| 10/27/1987 | CA1228484A1 Method and apparatus for improving acceleration in a multi-shaft gas turbine engine |
| 10/21/1987 | CN87200855U Multi-functional electronic controller for electric fan |
| 10/21/1987 | CN87200806U Automatic speed-regulating device for electric fan |
| 10/21/1987 | CN86108207A Turbine fan with coder |
| 10/20/1987 | US4701109 Compressor with rotation detecting device |
| 10/15/1987 | DE3710470A1 Control circuit for a motor drive, in particular a fan motor drive |
| 10/13/1987 | US4698964 Automatic deflector for a jet engine bleed air exhaust system |
| 10/06/1987 | US4697980 Adaptive gain compressor surge control system |
| 10/06/1987 | CA1227853A1 System, apparatus, and method for detecting and controlling surge in a turbo compressor |
| 10/06/1987 | CA1227852A1 Apparatus and method for detecting surge in a turbo compressor |
| 09/30/1987 | CN86207735U Intermittently timed electric fan |
| 09/22/1987 | CA1227141A1 Method of improving the part-load behaviour of a turbo machine, and a compressor or pump adapted for use of such method |
| 09/03/1987 | DE3605958A1 Device for detecting and eliminating separation vibrations on compressor blades |
| 09/02/1987 | CN86108206A Magneto turning fan with coding metwork |
| 08/18/1987 | US4686834 Centrifugal compressor controller for minimizing power consumption while avoiding surge |
| 08/18/1987 | CA1225716A1 Method and apparatus for detecting surge in centrifugal compressors driven by electric motors |
| 08/18/1987 | CA1225529A1 Compressor air bleed override control system |
| 08/12/1987 | CN85205314U Electric fan oscillating unit with arbitrary adjusting range |
| 08/12/1987 | CN85200719U Electric fan controller for simulating natural wind |
| 08/05/1987 | CN86203450U Tloating-point pressure gage type antomatic controlling device for water pump |
| 07/29/1987 | EP0230009A2 Regulation method for turbocompressors in order to avoid surge |
| 07/29/1987 | CN86204809U Multi-functional controller for household appliances |
| 07/28/1987 | CA1224859A1 Integrated control of output and surge for a dynamic compressor control system |
| 07/22/1987 | EP0229519A1 Improvements in and relating to compressors |
| 07/15/1987 | EP0228665A2 Limiting surge regulation method for turbocompressors |
| 07/14/1987 | US4679992 Turbo-compound compressor system |
| 07/14/1987 | US4679982 Compressor blow-off arrangement |
| 07/07/1987 | US4677829 Method for increasing the efficiency of gas turbine generator systems using low BTU gaseous fuels |
| 06/24/1987 | EP0225996A1 Flow rate control system in fluid supply and drain apparatus |
| 06/23/1987 | US4674951 Ring structure and compressor blow-off arrangement comprising said ring |
| 06/19/1987 | DE3543707A1 Method for operating an interconnected compressor system |
| 06/11/1987 | DE3542762A1 Einrichtung zur steuerung oder regelung von gasturbinentriebwerken bzw. gasturbinenstrahltriebwerken Means for control or regulation of gas turbine jet engines and gas turbine jet engine works |
| 06/09/1987 | CA1222804A1 Airflow control apparatus |
| 05/27/1987 | EP0223208A2 Method and apparatus for the regulation of turbo compressors |
| 05/27/1987 | EP0223207A2 Method and apparatus for the regulation of a turbo compressor for preventing surge |
| 05/27/1987 | CN86106554A Fan with code device |
| 05/20/1987 | EP0222383A2 Process for recording pump surges in turbo compressors |
| 05/20/1987 | EP0222382A2 Regulation process of turbo compressors |
| 05/13/1987 | CN86201541U Regulation device to stimulate natural wind for electric fan |
| 05/06/1987 | EP0220944A1 A fan with positive and reverse cyclic air flow stirring functions |
| 05/05/1987 | US4662817 Apparatus and methods for preventing compressor surge |
| 04/29/1987 | CN86205174U Electronic control device for multi-functional electric fan |
| 04/29/1987 | CN86203838U Imitated natural wind controlling device for electric fan |
| 04/21/1987 | US4659290 Fan speed controller |
| 04/07/1987 | US4656589 Method and apparatus for operating turbo compressor using analog and digital control schemes |
| 04/07/1987 | US4655034 Transient gas turbine engine bleed control |
| 03/04/1987 | EP0212971A2 System and method of controlling compressor surge |
| 03/03/1987 | US4646534 Means for refrigeration speed control |
| 03/03/1987 | US4646530 Automatic anti-surge control for dual centrifugal compressor system |
| 03/03/1987 | CA1218635A1 Centrifugal fans |
| 02/17/1987 | US4644238 Airflow control apparatus |
| 02/11/1987 | CN86103746A Ceiling fan with electromagnetic facing changable mechanism |
| 02/05/1987 | DE3526176A1 Control circuit for an electric motor |
| 02/03/1987 | US4640668 Ceiling fan with adjustable blowing scope thru a speed-servo and with driving speed control means |
| 02/03/1987 | US4640665 Method for controlling a multicompressor station |
| 02/03/1987 | US4640091 Apparatus for improving acceleration in a multi-shaft gas turbine engine |
| 01/27/1987 | CA1217260A1 Airflow control system |
| 01/20/1987 | US4637296 Air flow controlling apparatus |
| 01/13/1987 | CA1216564A1 Fluid compressor |
| 12/17/1986 | CN86101439A Compressor of centrifugal type |
| 12/09/1986 | US4627788 Adaptive gain compressor surge control system |
| 12/09/1986 | US4627234 Gas turbine engine/load compressor power plants |
| 12/02/1986 | CA1214686A1 Method for regulating the function of a centrifugal pump |
| 11/20/1986 | EP0201770A2 Turbine engine with induced pre-swirl at the compressor inlet |
| 11/18/1986 | US4622808 For an aircraft twin spool turbine power plant |
| 10/29/1986 | EP0199512A2 Compressor with rotation detecting device |
| 10/22/1986 | EP0198784A1 Fixed vane arrangement for a variable width diffuser |
| 10/21/1986 | US4618310 Method of multi-stage compressor surge control |
| 10/14/1986 | US4616483 Controlling a motor driven centrifugal compressor used in refrigeration |
| 10/08/1986 | CN85102741A Small electric fan with alternative current low speed starter |
| 09/16/1986 | US4611969 Calibrating apparatus and method for a movable diffuser wall in a centrifugal compressor |
| 09/16/1986 | US4611756 Controller for fan motor of air conditioner |
| 09/03/1986 | CN86200596U Multipurpose controller for electric fan |
| 09/03/1986 | CN85202941U Gentle blowing accessory for electric fan |
| 09/03/1986 | CN85104488A Totally-enclosed oil-circuit hydraulic integrated actuator |
| 09/02/1986 | US4608860 Stall detector |
| 09/02/1986 | US4608833 Self-optimizing, capacity control system for inverter-driven centrifugal compressor based water chillers |
| 08/20/1986 | CN85204496U Stepless speed-transformition for electric fan |
| 08/20/1986 | CN85201409U High efficiency and energy-saving speed adjustable electric fan with taps |
| 08/13/1986 | EP0190842A2 Compressor bleed valve |
| 08/12/1986 | CA1209680A1 Air flow controlling apparatus |
| 08/05/1986 | US4603546 Control systems for gas turbine aeroengines |
| 07/29/1986 | US4602410 Guide vane ring for a return flow passage in axial fans and a method of producing it |
| 07/23/1986 | CN85201831U Automatic electronic blowing-regulating unit to simulate natural wind |
| 07/16/1986 | CN85203402U Infinite angle modulator for electric fan |
| 07/09/1986 | EP0187114A2 Transient gas turbine engine bleed control |
| 07/08/1986 | US4598559 Reversible fixed vane rotary compressor having a reversing disk which carries the suction port |
| 07/02/1986 | EP0186333A1 Method and apparatus for detecting surge in centrifugal compressors driven by electric motors |
| 07/02/1986 | EP0186332A1 Self-optimizing centrifugal compressor capacity control |
| 06/25/1986 | EP0185601A2 Surge/stall cessation detection system |
| 06/10/1986 | US4594051 System, apparatus, and method for detecting and controlling surge in a turbo compressor |