| 摘要 |
PROBLEM TO BE SOLVED: To reduce the burden of power side and improve the coefficient of performance as well as improve the cooling performance without giving a large change to the conventional refrigerating machine. SOLUTION: A low-temperature low-pressure refrigerant which passes through a compressor 11, a condenser 12, a liquid receiver 13, an expansion valve 14, and an evaporator 15 in this order, is heat-exchanged with a high-temperature high-pressure refrigerant in the liquid receiver 13, and the low-temperature low-pressure refrigerant are returned to the compressor 11. A heat exchanging means 17 having such a function is provided within the liquid receiver 13. A temperature sensor 16 is provided between the liquid receiver 13 and compressor 11, and it detects the temperature of a refrigerant which is heat-exchanged in the liquid receiver 13 and returns to the compressor 11 and controls an opening of the expansion valve 14. |
