| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerant circuit of an air conditioner to harmonize the air of a crew cabin of an automobile.SOLUTION: A refrigerant circuit has: a compressor; a heat exchanger to transmit heat between a refrigerant and a periphery; the heat exchanger to supply heat to the refrigerant from the air to be harmonized of a first inflator and a crew cabin; the heat exchanger to transmit heat from the refrigerant to the air to be harmonized; and a second inflator to adjoin the heat exchanger in the refrigerant flow direction. The refrigerant circuit is formed to have a third inflator that has a changeable passage cross section. The third inflator is guaranteed a through passage of the refrigerant without a pressure loss in a complete open state, and is composed so that, while reduction of flow cross section, the pressure level in the heat exchanger to transmit the heat to the air to be harmonized for a crew cabin from the refrigerant becomes adjustable exceeding the pressure level of the heat exchanger for heat transfer between the refrigerant and the periphery, and is disposed in the refrigerant circuit. |
