| 摘要 |
PROBLEM TO BE SOLVED: To increase a cooling speed of a refrigerating chamber, to improve also the efficiency of a refrigerating cycle and thereby to reduce the amount of power consumption, by an inexpensive constitution having a small number of components. SOLUTION: The refrigerator has a first refrigerant circuit wherein a pressure reducing device 24a for a freezing chamber, an evaporator 25a for the freezing chamber and a check valve 27 are connected in series and a second refrigerant circuit wherein a pressure reducing device 24b for a refrigerating chamber and an evaporator 25b for the refrigerating chamber are connected in series. The pressure reducing device 24a for the freezing chamber and the second refrigerant circuit are connected in parallel and a selector valve 24 is provided at an inlet-side branch part of the parallel circuits. A bypass circuit connecting the selector valve 24 with the intake piping 29 of a compressor 21 is provided and the selector valve 24 is constituted of one valve which enables execution of switchover to selective communication with the pressure reducing device 24a for the freezing chamber, the second refrigerant circuit and the bypass circuit and to a state of full closure to these refrigerant circuits. In a state wherein the compressor 21 is stopped, the selector valve 24 is controlled to be in the state of full closure to the parallel refrigerant circuits and the bypass circuit 31.
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