METHOD OF COOLING ON-BOARD SYSTEMS OF FLYING VEHICLE Russian patent published in 1999 - IPC

FIELD: aeronautical engineering; cooling system of high-speed aircraft equipment. SUBSTANCE: method of cooling the on-board systems of flying vehicle consists in separation of flow of the outside air compressed in inlet diffuser into two parts. First part is directed to turbine where air is expanded polytropically doing work, after which it is heated in heat exchanger and compressed by compressor fitted on turbine shaft. Second part of air is admitted to ejector device in whose nozzle air is accelerated to speed ensuring the preset degree of rarefaction, after which air received from compressor is accelerated in mixing chamber exchanging with moment. Both flows are mixed after partial restoration of pressure in diffuser of ejector device and are discharged overboard. Method provides for reducing temperature of antifreeze cooling the aircraft on-board systems by 12 C in single-stage process, thus ensuring normal conditions for functioning of these systems in hot season. EFFECT: enhanced efficiency. 5 cl, 3 dwg