Lubricating compositions containing sulphonates and phenates
    4.
    发明申请
    Lubricating compositions containing sulphonates and phenates 有权
    含有磺酸盐和酚盐的润滑组合物

    公开(公告)号:US20050209110A1

    公开(公告)日:2005-09-22

    申请号:US11128855

    申请日:2005-05-13

    IPC分类号: C10M163/00

    摘要: A lubricating composition containing (a). at least 3 weight percent of an overbased sulphonate detergent with a metal ratio of 12.5:1 to 40:1; (b). at least 1.5 weight percent of a sulphur containing phenate detergent with a metal ratio of not more than 2.5; and (c). an oil of lubricating viscosity, wherein the sulphur containing phenate contains oligomers of hydrocarbyl phenol with at least 50 wt % of said oligomers in the form of the tetramer or higher oligomers. The composition is suitable for internal combustion engines, particularly marine diesel applications to provide improved cleanliness decreased cylinder wear and reduced deposits.

    摘要翻译: 含有(a)的润滑组合物。 至少3重量%的金属比例为12.5:1至40:1的高碱性磺酸盐洗涤剂; (b)。 至少1.5重量%的金属比不大于2.5的含硫酚盐洗涤剂; 和(c)。 一种具有润滑粘度的油,其中所述含硫酚盐含有烃基苯酚的低聚物和至少50重量%的四聚物或更高级低聚物形式的所述低聚物。 该组合物适用于内燃机,特别是船用柴油应用,以提供改进的清洁度,减少气缸磨损和减少沉积物。