| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress thr shortage of the refrigerant machine oil of a compressor, and to improve the reliability of a refrigerating device, in the refrigerating device including a plurality of the compressors. Ž<P>SOLUTION: A left side oil return passage (42) extended from a left side oil separator (37a) sends refrigerating machine oil separated by the left side oil separator (37a) to a main injection passage (30d). A right side oil return passage (43) extended from a right side oil separator (37b) can be switched between a first oil return state for sending the refrigerating machine oil separated by the right side oil separator (37b) to the downstream side of a solenoid valve (SV2) in a right side branch injection pipe (30b) and a second oil return state for sending the refrigerating machine oil separated by the right side oil separator (37b) to the main injection pipe (30d). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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