| 摘要 |
PROBLEM TO BE SOLVED: To attain enough supercooling to make the most of the cooling capacity of an evaporator. SOLUTION: The refrigerator is provided with a first supercooling heat exchanger 6 supercooling liquid coolant from a condenser 2 with a first heating medium, and a second supercooling heat exchanger 7 further supercooling the supercooled coolant from the first supercooling heat exchanger 6 with the latent heat of vaporization of a second heating medium between the condenser 2 and a decompressing apparatus 3. After supercooling the liquid coolant from the condenser 2 heat exchanging with the first heating medium by the first supercooling heat exchanger 6, the supercooled liquid coolant from the first supercooling heat exchanger 6 is further supercooled with the latent heat of vaporization of the second heating medium by the second supercooling heat exchanger 7 and fed to the evaporator 4.
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