VEHICLE COOLING SYSTEM

摘要

A cooling system (1) includes a compressor (12) that circulates refrigerant; a condenser (14) that condenses the refrigerant; an expansion valve (16) that reduces a pressure of the refrigerant that has been condensed by the condenser (14); an evaporator (18) that vaporizes the refrigerant that has been reduced in pressure by the expansion valve (16); a refrigerant passage (22) through which the refrigerant flows from an outlet of the condenser (14) toward an inlet of the expansion valve (16), and that includes a passage forming portion (26) that forms part of the refrigerant passage (22); a second passage that is connected in parallel with the passage forming portion (26); a cooling portion (30) that is provided in the second passage and cools a heat source (31) using the refrigerant; and an expansion valve (33) that is arranged upstream of the cooling portion (30) in the second passage.