| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerating machine oil composition exhibiting excellent lubrication in refrigerating air-conditioning equipment using an HFC refrigerant or the like, and enabling the refrigerating air-conditioning equipment to be stably driven over a long period. SOLUTION: The refrigerating machine oil composition contains an ester oil as a base oil, and a polyalkylene glycol of≥0.0005 mass% and <5 mass% based on the whole amount of the composition. COPYRIGHT: (C)2005,JPO&NCIPI |
