| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigeration cycle device which can achieve stable refrigerant flow rate control without being affected by a refrigerant state in compressor suction, and effectively use the performance of a supercooling heat exchanger, in a refrigeration cycle associated with a bypass circuit adding the supercooling heat exchanger. <P>SOLUTION: The refrigeration cycle device 1 includes: a refrigerant circuit 2 in which the supercooling heat exchanger 23 is disposed; the bypass circuit 3 passing through the supercooling heat exchanger 23; and a control device 4 for controlling a main expansion valve 24 in the refrigeration circuit 2 and a bypass expansion valve 31 in the bypass circuit 3. The refrigeration cycle device controls the bypass expansion valve 31 so that an inlet dry degree of an evaporator 25, which is detected by a discharge pressure sensor 61, a supercooling-heat-exchanger outlet temperature sensor 62 and an evaporator inlet temperature sensor 63, becomes a predetermined value. <P>COPYRIGHT: (C)2013,JPO&INPIT |
