| 摘要 |
PURPOSE:To make it possible to precisely control the temperature of inside of a cargo compartment for articles to be transmiported, by disposing chilling and refrigerating evporators in two chambers isolated from each other within the cargo compartment, and by enabling chilling or refrirgerating operation for these chambers inedependently from each other. CONSTITUTION:Chilling and refrigerating evaporators 10, 11 are disposed respectively in two chambers isolated from each other within a cargo compartment, and a condensor 8 is disposed in the upper section of the front section outside of the cargo compartment. Coolant inlet poarts for evaporators 10, 11 are connected to the outlet port of the condensor 8 through pipe lines 121 through 122 in which solenoid valves 131. 132 for controlling the flow rate of coolant when the temperatures of the compartments reach predetemined temperatures, are respectively disposed. Further, two suction ports 41, 42 of a compressor 4 are communicated to the coolant outlet ports of the evaporators 10, 11 through and accumulators 16, 17 Further, pipe line 171, 172 between the suction ports 41, 42 and the accumulators 15, 16 are communicated with each other through a pipe line change-over device 18 including an one-way valve 182 and a solenoid valve 184 whose stream is in the direction opposite to that of the one-way valve 18, which are connected in parallel with each other. |
