| 摘要 |
PURPOSE:To make air-cooling for a napping room performable even in case of parking, by installing a car room cooling unit and a napping room cooling unit both, and constituting them so as to store cold air in a cold storage member of the napping room cooling unit during engine drive, in case of the above-captioned cooler for a truck. CONSTITUTION:When an air-cooling switch 2 is turned on, driving a car in a cooling state, and a napping room cold storage switch 4 is made in circuit, feeding to a second control circuit 5 takes place. At this time, since temperature in a cold storage member 29 is higher than the setting temperature, this control circuit 5 keeps a solenoid valve 48 in a state of being closed, and makes a refrigerant flow from a cab suction pipe line 45 to a main suction port 12e of a compressor 21, while it also makes the refrigerant flow from a napping room air-cooling suction pipe line 46 to a sub-suction port 21f of the compressor 21 at the napping room side. Therefore, air-cooling for a napping room evaporator 28 is carried out in keeping it in refrigerant evaporative temperature, and simultaneously the cold storage member 29 is cooled, storing the cold air. When detection temperature 7 reaches the specified one, cold storage completion is indicated by an indicator 8. And, during parking, a napping room is cooled with this cold storage. |
