| 摘要 |
<p>In a hermetic compressor using a hydrocarbon coolant and a mineral oil lubricant, the decrease in the viscosity of the mineral oil lubricant for the purpose of operation with high efficiency results in poor lubricity and the lowering of reliability. In order to improve lubricity and to thereby achieve high efficiency, less noise and high reliability at the same time, at least one specific additive is added to a refrigerating machine oil.</p> |
