申请人:Idemitsu Kosan Co.,Ltd.
公开号:EP3766948A1
公开(公告)日:2021-01-20
Provided is a lubricating oil composition for use in internal-combustion engines, containing a base oil (A), an ashless dispersant (B) containing a non-boronated alkenylsuccinic acid imide (B1) and a boronated alkenylsuccinic acid imide (B2), a thiadiazole compound (C), and an aromatic carboxylate (D) having one or more hydroxy groups, wherein the content of the component (C) is 0.2 to 1.2% by mass based on the total amount of the lubricating oil composition, the content of a zinc dithiophosphate is, as calculated in terms of zinc atoms, less than 500 ppm by mass based on the total amount of the lubricating oil composition, and the content of a metal-based detergent is, as calculated in terms of metal atoms, less than 600 ppm by mass based on the total amount of the lubricating oil composition.
本发明提供了一种用于内燃机的润滑油组合物,其中包含基础油 (A)、无灰分散剂 (B)(包含非硼酸化烯基琥珀酸亚胺 (B1) 和硼酸化烯基琥珀酸亚胺 (B2))、噻二唑化合物 (C) 以及具有一个或多个羟基的芳香族羧酸盐 (D),其中组分 (C) 的含量为润滑油组合物总量的 0.2 至 1.2% (以润滑油组合物总量为基准),二硫代磷酸锌的含量(以锌原子为基准)小于 500 ppm (以润滑油组合物总量为基准),金属基清洁剂的含量(以金属原子为基准)小于 600 ppm (以润滑油组合物总量为基准)。