Air supply systems for vehicles

An air supply system for a vehicle, the air supply system comprising:

• a first system including a first compressor configured to compress 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;
• and
• a second system including a second compressor configured to compress 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,
• wherein the second compressor, the second condenser, the expansion valve, and the evaporator of the second system are connected by a refrigerant flow line through which a refrigerant flows, and
• wherein the refrigerant flowing through the refrigerant flow line and the compressed air passing through the heat exchanger are heat-exchanged with each other.

An air supply system for a vehicle, the air supply system comprising:

• a first system including:
• a first compressor configured to compress 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;
• and
• a second system including:
• a second compressor configured to compress 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,
• wherein the second compressor, the second condenser, the expansion valve, and the evaporator of the second system are sequentially connected by a refrigerant flow line through which the refrigerant flows,
• wherein a first refrigerant pipe of the first condenser in the first system is connected to a second refrigerant pipe of the evaporator in the second system, the second refrigerant pipe being connected to the refrigerant flow line,
• wherein the first system further includes a receiving tank disposed between a rear end of the first compressor and the heat exchanger, and
• wherein the heat exchanger includes a first pipe portion connecting the receiving tank to the first condenser and a second pipe portion through which air discharged from the first condenser flows.