| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving actual fuel economy of a vehicle while performing air conditioning by changing a condition of refrigerating cycle depending on running, deceleration, acceleration, idling, and idle stop of the vehicle. SOLUTION: This air conditioner is composed of a compressor 10, a condenser 20, a first expansion valve 31, a second expansion valve 32, a cold storage device 50 having a heat exchanger 51 inside it, and an evaporator 40. The refrigerant in a gas-liquid 2 layer whose pressure is reduced by the first expansion valve and which is collected in the cold storage device is cooled by the refrigerant passing through the heat exchanger through the second expansion valve from the cold storage device and is stored in cold. When performing acceleration and idling, the compressor is operated by low heat load cycle by utilizing the cold storage refrigerant and controlling two expansion valves to reduce practical use fuel consumption of the vehicle when performing air conditioning. COPYRIGHT: (C)2004,JPO
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