AIR SUPPLY SYSTEMS FOR VEHICLES

An air supply system for a vehicle includes a first system including a first compressor compressing ambient air, a heat exchanger connected to the first compressor to allow compressed air to flow therethrough, and a first condenser connected to the heat exchanger. The air supply system further includes a second system including a second compressor compressing a refrigerant, a second condenser disposed at a rear end of the second compressor, an expansion valve disposed at a rear end of the second compressor, and an evaporator disposed at a rear end of the expansion valve. The second compressor, the second condenser, the expansion valve, and the evaporator of the second system are sequentially connected by a refrigerant flow line, and a refrigerant pipe disposed in the evaporator of the second system and connected to the refrigerant flow line is connected to a refrigerant pipe for a first condenser.