To provide the operation method of a compressor in a refrigeration circuit for reducing the load and consumption power of the compressor when the compressor starts operating.
As the operation stop control of a compressor 3 when temperature in a chamber 1A reaches a set temperature (operation stop temperature of the compressor), the operation of the compressor 3 is stopped in specific time td after the supply of a refrigerant to an evaporator 2A is broken by totally closing an electronic expansion valve 15A as a flow rate adjustment means. More specifically, by operating the compressor 3 only for the specific time td, the refrigerant in the evaporator 2A is sucked and eliminated, the load of the compressor is reduced when operation is resumed, and at the same time the response of the degree of superheating of the refrigerant is improved, thus reducing entire consumption power.
OKUMURA TOSHIKAZU
NAGAYAMA KAZUSUKE
TANAKA NOBUHIKO
KOWADA HIROMITSU
CHIBA TANEKAZU
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