| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a working fluid composition for freezers, enabling the lubricity and refrigerant compatibility of a freezer oil to coexist in the presence of a carbon dioxide refrigerant. <P>SOLUTION: This working fluid composition for freezers comprises an ester-based lubricant base oil having a dynamic viscosity of 100 to 1,000 mm<SP>2</SP>/s at 40°C and a dynamic viscosity of 8 to 50 mm<SP>2</SP>/s at 100°C, the carbon dioxide refrigerant, and a dimethyl ether refrigerant. <P>COPYRIGHT: (C)2009,JPO&INPIT |
