HERMETIC COMPRESSOR AND REFRIGERATION CYCLE

摘要

PROBLEM TO BE SOLVED: To improve safety by reducing a leakage of a refrigerant in relation with a hermetic compressor and a refrigeration cycle which use flammable saturated hydrocarbon as the refrigerant. SOLUTION: An intake side valve 102 and a discharge side valve 104 are provided in a sealed container 2, which close a refrigerant intake passage 10 and a refrigerant discharge passage 12 at the time of shut-down of the hermetic compressor 101. When operation of the hermetic compressor 101 is stopped, the hermetic compressor 101 and a condenser and evaporator side of the refrigeration cycle are disconnected by the intake side valve 102 and the discharge side valve 104. This can prevent the refrigerant in the sealed container 2 from leaking out of the refrigeration cycle, reduce an amount of the refrigerant leaking outside the refrigeration cycle so as to avoid flushing-off of the leaked refrigerant, and ensure the safety. COPYRIGHT: (C)2004,JPO&NCIPI