Patent ID: 6484518
Filing Date: 2002-11-26
Classification: B64D,F28D,Y02T

Abstract:
A method of feeding a cool air inlet of a cabin of an aircraft propelled by at least one jet engine, in which method air bled from said engine is compressed in a turbocompressor, the air compressed in this way is cooled in a heat exchanger through which air outside the aircraft passes, a turbine stage of said turbocompressor is fed with the air cooled in this way, said cool air inlet is fed with the air leaving said turbine stage, mechanical energy is extracted from the air leaving said cabin of the aircraft, said mechanical energy is injected into said turbocompressor by means of a second turbine stage coupled to the first turbine stage, and cooling energy is additionally extracted from said air leaving the cabin, said cooling energy being injected into said cooled air leaving said exchanger with the aid of a second heat exchanger and a third heat exchanger located respectively upstream and downstream of said second turbine stage.