Back to results
US 12,297,402 B2Granted
Base oil for refrigerator oil, refrigerator oil, and working fluid composition for refrigerator
AssigneeEneos Corporation
InventorsFumiyuki Nara, Tomohiro Takaki, Yuya Mizutani, Makoto Ando, Hidetoshi Ogata
Life of this patent
Estimating the term…
Abstract
A base oil for a refrigerating machine oil, having cyclic saturates of 40% by mass or less and non-cyclic saturates of 60% by mass or more in saturates, a density at 15° C. of 0.805 g/cm3 or lower, and a normal paraffin content of 50% by mass or less.
Claims5
A refrigerating machine oil comprising:
- a base oil for a refrigerating machine oil, having cyclic saturates of 40% by mass or less and non-cyclic saturates of 60% by mass or more in saturates, a density at 15° C. of 0.76 g/cm3 or higher and 0.802 g/cm3 or lower, a content of a hydrocarbon having 12 to 16 carbon atoms of 85% by mass or more, and a normal paraffin content of 45% by mass or less, and
- a phosphorus-containing antiwear agent,
- wherein a 90% distillation temperature of the refrigerating machine oil is 270° C. or lower, and wherein the refrigerating machine oil is used together with a refrigerant.
A working fluid composition for a refrigerating machine, comprising:
- a refrigerating machine oil comprising a base oil for a refrigerating machine oil, having cyclic saturates of 40% by mass or less and non-cyclic saturates of 60% by mass or more in saturates, a density at 15° C. of 0.76 g/cm3 or higher and 0.802 g/cm3 or lower, a content of a hydrocarbon having 12 to 16 carbon atoms of 85% by mass or more, and a normal paraffin content of 45% by mass or less, and
- a refrigerant,
- wherein a 90% distillation temperature of the refrigerating machine oil is 270° C. or lower.
Dependencies are inferred from the claim text.