| 摘要 |
PURPOSE:To prevent a waste of electric power and the reduction of the refrigerating effect due to an excessive cooling capability by feeding a part of the refrigerant discharged from a compressor directly to a refrigerant inlet instead of feeding to a condenser. CONSTITUTION:Under a normal operation, a valve 13 is closed and a check valve 14 is opened and the refrigerant discharged from outlets 4, 5 of a compressor 1 is circulated through a condenser 15, expansion valve 16, evaporator 17, and inlets 2, 3 for cooling. When the cooling capability is to be limited, the valve 13 is opened and the check valve 14 is closed, then the refrigerant portion discharged from the discharge outlet 4 of the compressor 1 is not flown toward the condenser 14 but is flown to the inlets 2, 3 through a release pipe 12. On the other hand, the refrigerant portion discharged from the discharge outlet 5 is circulated for cooling, thus the cooling capability can be freely changed. |
