Patent ID: 6807819
Filing Date: 2004-10-26
Classification: F25B,Y02B

Abstract:
A vapor compression refrigerant cycle comprising:a compressor for compressing and discharging refrigerant; a high-pressure heat exchanger for radiating heat of high-pressure refrigerant discharged from the compressor; a decompression device that decompresses the high-pressure refrigerant from the high-pressure heat exchanger; a low-pressure heat exchanger for evaporating low-pressure refrigerant after being decompressed in the decompression device; and a control unit for controlling a rotational speed of the compressor, wherein: the control unit sets a starting target rotational speed of the compressor at an operation starting time of the compressor based on a refrigerant pressure of the compressor at the operation starting time such that the starting target rotational speed is reduced as the refrigerant pressure increases; and the control unit starts the compressor by the starting target rotational speed.