Patent ID: 6539744
Filing Date: 2003-04-01
Classification: F24F,F25B

Abstract:
An air-conditioning apparatus which cools room air by an air cycle employing air as a refrigerant for performing air-cooling, comprising:means for directing room air to the apparatus; a compressor which draws in the room air for compressing said drawn room air; cooling means which subjects said compressed air compressed in said compressor to heat exchange with exhaust air expelled from the room for cooling said compressed air; means for delivering exhaust air to said cooling means; moisturizing means which supplies moisture to said exhaust air that is delivered to said cooling means for pre-cooling said exhaust air, wherein when said exhaust air is expelled from said cooling means said moisturizing means supplies a specified amount of moisture to said exhaust air so that said exhaust air has a relative humidity in a range from not less than 80% to less than 100%; and an expansion device which provides expansion of said compressed air cooled by said cooling means wherein low-temperature air cooled by said expansion in said expansion device is delivered into the room.