| 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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| 12/22/1992 | US5172857 Combustion air blower for an auxiliary heater for a motor vehicle |
| 12/16/1992 | CN2125034U Centrifugal air-blower |
| 12/10/1992 | WO1992021866A1 Fan installation |
| 12/10/1992 | DE4217303A1 Luefteraggregat Luefteraggregat |
| 12/09/1992 | CN2124336U Remote-controlled adjustable-speed ceiling fan |
| 12/09/1992 | CN2124334U Axial fan |
| 12/02/1992 | CN2123641U Remote control governor for hanging electric fan of electric capacity governing |
| 12/02/1992 | CN2123640U Scavenging fan controlled by temp. difference |
| 12/02/1992 | CN2123639U Rotary air-blower |
| 12/01/1992 | US5167367 Snowmaking apparatus and methods |
| 11/24/1992 | US5165845 Controlling stall margin in a gas turbine engine during acceleration |
| 11/24/1992 | US5165844 On-line stall margin adjustment in a gas turbine engine |
| 11/24/1992 | US5165377 Hydraulic fan drive system |
| 11/18/1992 | CN2122254U Electric fan temp-controlling speed governor |
| 11/17/1992 | CA1310248C Breathing apparatus |
| 11/11/1992 | CN2121557U Miniature ventilation fan with timing |
| 11/11/1992 | CN1066104A Enclosed apparatus for extractor fan |
| 11/10/1992 | US5161941 Actuator assembly for controlling inlet air flow to centrifugal fans |
| 10/27/1992 | US5157928 Electronically controlled cryopump |
| 10/20/1992 | US5155993 For a gas turbine engine |
| 10/07/1992 | EP0378658B1 Surge protected gas turbine engine for providing variable bleed air flow |
| 09/17/1992 | DE4109510A1 Revolution speed controller for fan or centrifugal pump motor - uses control logic actuating semiconductor or mechanical switches for transformer tap-offs |
| 09/15/1992 | US5146764 Control system for a chiller system |
| 09/09/1992 | CN2115418U Automatic temp. controller for fan |
| 09/03/1992 | DE4106614A1 Characteristic diagram stabilisation device for radial compressor - has circulation chamber of porous flow-permeable material |
| 09/02/1992 | CN2114718U Electric fan seed regulator |
| 08/27/1992 | DE4105807A1 Ventilator fan switch for cooker hood - evaluates signal from infrared receiver detecting radiation from transmitter reflected to it from steam collecting under hood |
| 08/26/1992 | EP0500196A2 Method and apparatus for preventing surge in a dynamic compressor |
| 08/26/1992 | EP0500195A2 Method and apparatus for preventing surge in a dynamic compressor |
| 08/26/1992 | CN2114052U Electric fan speed-regulator with the function of multi-functional decoration |
| 08/26/1992 | CN2114051U Infrared following head-rotating means for electric fans |
| 08/25/1992 | US5141391 Active control of unsteady motion phenomena in turbomachinery |
| 08/19/1992 | CN2113369U Speed regulation controller for electric fan |
| 08/19/1992 | CN2113368U Multifunctional electric fan with automatic governor |
| 08/12/1992 | CN2112711U Multifunctional speed regulator for hanging fan |
| 08/11/1992 | US5137428 Ventilating device |
| 08/05/1992 | CN2112024U Indoor air purifier |
| 07/29/1992 | CN2111394U Automatic retarding fan |
| 07/29/1992 | CN2111393U Temp. control continous speed-regulating unit of fan |
| 07/29/1992 | CN2111392U Switch of electric fan |
| 07/15/1992 | EP0494380A1 Snowmaking apparatus and methods |
| 07/15/1992 | CN2110114U Efficency self-control oxygen therapy machine |
| 07/15/1992 | CN2110113U Electric fan plug with time function |
| 07/15/1992 | CN2110112U Infrared following automatic fan |
| 07/14/1992 | US5130621 Apparatus for preventing generation of noise of a blower unit using a brushless motor |
| 07/12/1992 | CA2057958A1 Snowmaking apparatus and methods |
| 07/08/1992 | CN2109466U Automatic working device for spare pump |
| 07/08/1992 | CN1062586A Stepless speed regulator of electric fan |
| 07/01/1992 | CN2108815U Energy saver for elecdtric fan capable of imitating natural wind |
| 06/30/1992 | US5125806 Integrated variable speed compressor drive system |
| 06/30/1992 | US5125571 Variable speed control of livestock ventilation fans using discrete feedback of motor speed |
| 06/24/1992 | CN2108193U Electronic temp. controller for electric fan |
| 06/24/1992 | CN2108192U Electronic timing variable-speed governor for energy-saving fan |
| 06/17/1992 | DE4125487C1 Flow casing for radial-flow compressor - has side duct in restricted peripheral section in narrow region of spiral cross=section |
| 06/17/1992 | CN2107557U Quick starting fan speed regulator |
| 06/17/1992 | CN2107556U Ceiling fan electric speed regulator with timing function |
| 06/10/1992 | EP0489440A2 Air management system for a controlled atmosphere container |
| 06/10/1992 | EP0489150A1 Method and device for controlling air supply in a network of passages. |
| 06/10/1992 | CN2106927U Ramdom speed-regulater for electric fans |
| 06/09/1992 | US5119625 Blow-off device for a bypass gas turbine engine |
| 06/07/1992 | CA2055806A1 Air management system for a controlled atmosphere container |
| 06/03/1992 | CN2106251U Natural wind simulator for electric fan |
| 06/02/1992 | US5117625 Integrated bleed load compressor and turbine control system |
| 05/27/1992 | EP0487242A1 Compressor bleed structure |
| 05/27/1992 | CN2105734U Gas pre-alarm exhausting fan |
| 05/27/1992 | CN2105586U Thin type electric fan timer |
| 05/27/1992 | CN2105585U Multi-function programmable ceiling fan controller |
| 05/27/1992 | CN2105584U Electric fan nature wind imitating controller |
| 05/27/1992 | CN2105583U Timing automatic speed-changing device for ceiling fan |
| 05/27/1992 | CN2105579U Electric fan with radio-recorder |
| 05/27/1992 | CN1061466A Self-controlled speed regulator for generating imitated naturl wind |
| 05/20/1992 | CN2104966U Ceiling fan having quick changeable wind |
| 05/20/1992 | CN2104965U Stageless speed-variating timer for electronic temp-control type fan |
| 05/19/1992 | US5113646 Method for evaluating the working line characteristics of a compressor of a gas turbine engine |
| 05/06/1992 | CN2103683U Electronic timing controller for natural wind imitating electric fan |
| 05/06/1992 | CN2103681U Device capable of stepless speed regulating rotary blade |
| 05/05/1992 | US5110264 Variable speed turbo vacuum pump |
| 04/29/1992 | CN2103036U Automatic pressure regulating switch for temp. control of fan |
| 04/29/1992 | CN2103035U Slepless speed regulater for fan |
| 04/28/1992 | US5108263 Method of optimizing the operation of two or more compressors in parallel or in series |
| 04/23/1992 | DE4033092A1 Tandem cooler with single controller for motor vehicle - supplies air for engine cooling and passenger compartment ventilation purposes from two power transistor-driven fans |
| 04/22/1992 | CN2102397U Room temp. controller of electric fan |
| 04/22/1992 | CN2102396U Weak wind device of household electric fan |
| 04/22/1992 | CN2102395U Health controller of electric fan |
| 04/22/1992 | CN2102394U Speed regulator of hanging fan |
| 04/08/1992 | CN1060139A Axial-flow blower |
| 04/01/1992 | EP0477740A1 Axial-flow blower |
| 04/01/1992 | CN2100518U Double-function timing, stepless speed-regulating electric fan controller |
| 03/25/1992 | EP0477055A1 Control device for anti surge means of a compressor |
| 03/25/1992 | CN2099867U Healthy gentle breeze new type electric fan |
| 03/25/1992 | CN2099866U New type electric fan |
| 03/25/1992 | CN1059785A Stepless speed regulating blower fan |
| 03/22/1992 | CA2048261A1 Compressor discharge temperature control for a variable speed compressor |
| 03/18/1992 | CN2099207U Remote speed controller for home electric fan |
| 03/17/1992 | US5095714 Surging prediction device for a centrifugal compressor |
| 03/11/1992 | CN2098579U Electric fan with temp-control switch |
| 03/11/1992 | CN2098578U Multifunctional speed governer of electric fan |
| 03/11/1992 | CN2098577U Energy-saving device for electric fan providing intermittent blowing |
| 03/05/1992 | WO1992003661A1 Flow control method and means |
| 03/05/1992 | DE4027174A1 Kennfeldstabilisierung bei einem radialverdichter Stabilizing the performance characteristics in a radial compressor |