PAO4 base oil and lubricating oil used for jet engine

The invention provides lubricating oil used for a jet engine. The lubricating oil is characterized by being prepared from the following components in percentage by mass: 80 to 95% of low-viscosity PAO base oil, 5 to 15% of a polyester, and the balance of an antioxidant, wherein the polyester is selected from one or more of polyatomic acid with a carbon atom number greater than 6, monohydric or polyhydric alcohol with a carbon atom number greater than 4, and polyester which is prepared by esterification reaction. The PAO base oil prepared by a special process selected by the invention is combined with other adjuvants to prepare the lubricating oil used for the jet engine specially, and the oxidation stability of the lubricating oil is excellent. 本发明提供了种用于喷气发动机润滑油,其特征在于，由如下质量百分比的组分制造而成：低粘度PAO基础油80-95％；多元酯5-15％；抗氧化剂余量；其中，所述多元酯选自碳原子数大于6的多元酸，与碳原子数大于4的元或多元醇，经酯化反应制造而成的多元酯中的种或多种。本发明选用特殊工艺制备的PAO基础油，结合其他辅助剂调制出来的专用于喷气发动机的润滑油，其氧化安定性极佳。