| 摘要 |
PROBLEM TO BE SOLVED: To avoid the breakage of components, the deterioration of drivability, and the deterioration of cool down performance, by avoiding the sudden pressure rise at start of a freezing cycle. SOLUTION: This controller has a freezing cycle 1 which is equipped with at least a compressor 2 which can change the discharge capacity by adjusting the quantity of control to be inputted, from outside, and also can boost a refrigerant to a supercritical region, a radiator 3 which cools a refrigerant compressed with the compressor 2, an expander 5 which depressurizes the refrigerant cooled by this radiator 3, and an evaporator 6 which evaporates the refrigerant depressurized with this expander 5. In the case that the thermal load is judged to be not less than specified load, the controller regulates the quantity of control at start of the compressor 2 to the quantity to suppress the discharge capacity of the compressor 2 according to the thermal load, and starts and operates the compressor 2 for a prescribed time with the regulated quantity of control. |
