| 摘要 |
PURPOSE: A cooling cycle for vehicles is provided to improve heat exchange efficiency, and to prevent an evaporator from becoming frozen caused by excessive expansion. CONSTITUTION: A cooling cycle for vehicles comprises a compressor(100), an condenser(200), a receiver drier(300), an expansion valve(400), an evaporator(500), and auxiliary expansion valve(600), and a heat exchanger. The evaporator evaporates refrigerants flowing from the expansion valve. The auxiliary expansion valve is delivered with a part of the refrigerants transferred to the expansion valve from the receiver drier, and throttles the refrigerants. The heat exchanger is integrally formed with the receiver drier. The heat exchanger heat exchanges the throttled refrigerants with the stored refrigerants, and delivers the heat exchanged refrigerants to the compressor.
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