REFRIGERATING-MACHINE OIL COMPOSITION AND COMPRESSOR AND REFRIGERATING APPARATUS BOTH EMPLOYING THE SAME

摘要

A refrigerating-machine oil composition which is for use in a refrigerating-machine compressor in which at least part of the sliding surfaces of the members constituting the compression mechanism part have been coated with a composition for lubricating-film formation comprising a binder resin having a heat deformation temperature of 100‹C or higher and a solid lubricant. The refrigerating-machine oil composition comprises a base oil comprising a polyoxyalkylene glycol having a dynamic viscosity at 100‹C of 3-50 mm^2/s and a compound selected among an amide compound, amidated amino acid compound, and aliphatic amine each having a specific structural formula, the amount of the compound being 0. 01-1 mass% based on the whole refrigerating-machine oil composition. The refrigerating-machine oil composition can ensure the lubricity of the sliding part of a compressor for refrigerating machines during the starting and operation of the compressor. Also provided are a compressor employing the refrigerating-machine oil composition and a refrigerating apparatus employing the compressor. ® KIPO & WIPO 2008