| 摘要 |
PROBLEM TO BE SOLVED: To bring a change in a refrigerant flow rate upon opening/closing operation of a valve to a gradual one, and refrigerating action of a refrigerator chamber into a gradual one. SOLUTION: A vaporizer is provided in each of first to third refrigeration chambers 20a, 20b, and 20c, on each of which an electric motor operated valve 10 is provided. A temperature in a refrigerator is controlled optimally by feed- back controlling the refrigerant flow rate in the refrigeration chamber with the aid of the motor operated valve 10.
|
