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CN102782107A 内燃机用润滑油组合物 无效 - 撤回

内燃机用润滑油组合物
摘要：
提供一种虽然是低粘度，但行驶时的噪声得到降低，能抑制齿轮点蚀等疲劳损伤，减少耗油，且具有良好省燃耗性的内燃机用润滑油组合物，其特征在于，在粘度指数在125以上、Noack蒸发量（250℃×1h）在15质量％以下的基础油中，以组合物总量为基准，混合0.1～10质量％的（A）质均分子量500以上10,000以下的碳原子数2～20的烯烃聚合物，及/或（B）质均分子量在10,000以上不足100,000的高分子化合物而成，（C）质均分子量100,000以上的高分子化合物的混合量不足1.0质量％。
摘要（英）：

Provided is a lubricating oil composition for internal combustion engines, which has a low viscosity and can nevertheless reduce noise in running, prevent fatigue damage such as gear pitting, and reduce the consumption of lubricating oil, and which can ensure high fuel efficiency. A lubricating oil composition for internal combustion engines, which is characterized by: comprising a base oil that exhibits a viscosity index of 125 or more and a Noack evaporation loss (250 DEG C*1h) of 15 mass% or less, and, relative to the whole composition, 0.1 to 10 mass% of a C2-20 olefin polymer (A) that has a mass-average molecular weight of 500 to 10,000 and/or a high-molecular compound (B) that has a mass-average molecular weight of 10,000 to less than 100,000; and having a high-molecular compound (C) content of less than 1.0 mass%, the compound (C) having a mass-average molecular weight of 100,000 or more.

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