| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigeration circuit of a vehicular air-conditioner, having a remote possibility of the occurrence of fire or the like by instantaneously minimizing leakage of refrigerant from the circuit in the event of any excessive impact when changing the refrigerant now in use to a new refrigerant of R1234yf. SOLUTION: The refrigeration circuit for the vehicular air-conditioner comprises a compressor, a condenser, a decompression/expansion means and an evaporator, which are provided in this order. R1234yf is used as the refrigerant, and shut-off valves for shutting off the circuit on the basis of an excessive acceleration signal of the vehicle are provided in the circuit upstream and downstream of the condenser. COPYRIGHT: (C)2010,JPO&INPIT
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