申请人:JX Nippon Oil & Energy Corporation
公开号:US10087389B2
公开(公告)日:2018-10-02
A lubricating oil composition containing a lubricating base oil and on the basis of the total mass of the composition, (A) a boron-containing ashless dispersant in an amount of 100 to 500 ppm by mass as boron, (B) a phosphorous additive in an amount of 300 to 800 ppm by mass as phosphorus, (C) an amide- and/or imide-based friction modifier in an amount of 1 to 4 percent by mass, and (D) an alkali metal- and/or alkaline earth metal-based detergent in an amount of 100 to 300 ppm by mass as metal, and having a 40° C. kinematic viscosity of 30 mm2/s or lower is provided. The lubricating oil composition, which has a low viscosity to improve fuel efficiency, also has superior anti-wear, anti-seizure, and anti-shattering properties, even when the composition is degraded by oxidation or by the elution of compounds from sealing materials after long term use.
一种润滑油组合物,其中含有润滑基础油和以下成分(以组合物总质量为基准):(A) 含硼无灰分散剂,以硼的质量计,其用量为 100 至 500 ppm;(B) 磷添加剂,以磷的质量计,其用量为 300 至 800 ppm、(D) 碱金属和/或碱土金属基洗涤剂,以金属计,含量为 100 至 300 ppm(以质量计),40°C.运动粘度为 30 mm2/s 或更低。该润滑油组合物粘度低,可提高燃油效率,同时还具有优异的抗磨损、抗抖动和抗碎裂性能,即使该组合物在长期使用后因氧化或密封材料中的化合物洗脱而降解。