| abstract |
(57) [PROBLEMS] To provide a highly reliable refrigerant compressor that can withstand long-term use by using an excellent refrigerating machine oil that complies with CFC regulations that enables CFC134a, which is a refrigerant alternative to CFC12, to be used. It is to realize the equipped refrigerator. SOLUTION: The refrigerating machine oil used in the compressor provided in the refrigerating machine of the present invention is a refrigerating machine oil such as ester oil, alkylbenzene, and mineral oil containing an epoxy compound having two or more epoxy groups in the molecule. More preferably, an appropriate amount of a phenolic antioxidant is also added, and this epoxy group opens and captures the acid generated by the reaction between the refrigerant and the oil or the refrigerant and water, whereby the refrigerant resistance of the oil is improved. Is greatly improved. It is possible to prevent corrosive wear and damage of the sliding parts of the compressor due to the increase of the total acid value of oil and the copper plating phenomenon. A refrigerator having a highly reliable refrigerant compressor can be realized. |