Patent ID: 6041615
Filing Date: 2000-03-28
Classification: B64D,F24F,F25B,Y02T

Abstract:
An air cycle air conditioning system comprising:a turbine for receiving air and providing expansion thereof, thus lowering a temperature thereof;an air--air heat exchanger defining a first air flow path for a fluid to be cooled and a second air flow path for air from said turbine at sub-atmospheric pressure to pass therethrough and absorb heat from the fluid to be cooled; anda compressor, at least partially driven by said turbine, for drawing air at sub-atmospheric pressure through the second flow path for air,characterized bya pre-heater which heats a flow of incoming air, said incoming air not coming from said turbine, and directs said flow of incoming air via said first air flow path to said air--air heat exchanger, thereby heating said incoming air and consequently increasing a temperature and water vapor absorption capacity of said air of said second airflow path.