Refrigerating machine oil composition for carbon dioxide refrigerant
AssigneeIdemitsu Kosan Co., Ltd.
InventorToshinori Tazaki
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Abstract
The invention relates to a refrigerator oil composition for compression refrigerators with carbon dioxide refrigerant therein, such as car air conditioners, refrigerators, freezers, air conditioners, heat pumps, etc. The base oil of the composition comprises an oxygen-containing organic compound as the essential component and has a kinematic viscosity at 100° C. of from 5 to 50 mm2/sec, a viscosity index of at least 60, and a water content of at most 300 ppm.
Claims7
A refrigerator oil composition for carbon dioxide refrigerant, of which the base oil comprises an oxygen-containing organic compound as the essential component and has a kinematic viscosity at 100° C. of from 5 to 50 mm2/sec, a viscosity index of at least 60, and a water content of at most 300 ppm.
Dependencies are inferred from the claim text.