MARINE LUBRICATING OIL COMPOSITE ADDITIVE
    42.
    发明申请
    MARINE LUBRICATING OIL COMPOSITE ADDITIVE 审中-公开
    海洋润滑油复合添加剂

    公开(公告)号:US20120231984A1

    公开(公告)日:2012-09-13

    申请号:US13416073

    申请日:2012-03-09

    IPC分类号: C10M149/10

    摘要: A marine lubricating oil composite additive is provided. Based on the total weight of the composite additive, said marine lubricating oil composite additive comprises: 25-45% sulfonate detergent with superhigh base number, 40-60% phenolate detergent with low base number, 0-8% dispersing agent, 0-4% antiwear agent, and 10-20% Group I base oil with high viscosity index which is selected from the group consisting of 400SN, 500SN and 600SN. The composite additive of the present invention can satisfy the requirement of BOB system about the viscosity and base number, and can be blended with many system oils under a number of domestic and foreign brands so as to provide cylinder lubricating oils with different base numbers. The composite additive of the present invention has good adaptability and excellent performances in terms of antiwear, antioxidization and high temperature detergency, which meet the requirement of marine engines about the performance of cylinder lubricating oils.

    摘要翻译: 提供海洋润滑油复合添加剂。 基于复合添加剂的总重量,所述海洋润滑油复合添加剂包括:具有超高碱值的25-45%磺酸盐洗涤剂,低碱值的40-60%苯酚洗涤剂,0-8%分散剂,0-4 %抗磨剂,10〜20%高粘度指数的I组基础油,选自400SN,500SN和600SN。 本发明的复合添加剂可以满足BOB系统对粘度和碱值的要求,并可与许多国内外许多品牌的系统油混合,以提供不同碱值的油缸润滑油。 本发明的复合添加剂在抗磨损,抗氧化和高温洗涤等方面具有良好的适应性和优异的性能,满足船用发动机关于气缸润滑油性能的要求。

    MARINE ENGINE LUBRICATION
    44.
    发明申请
    MARINE ENGINE LUBRICATION 有权
    海上发动机润滑

    公开(公告)号:US20120034829A1

    公开(公告)日:2012-02-09

    申请号:US13265339

    申请日:2010-04-26

    IPC分类号: B63H21/38 C10M169/04

    摘要: Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a Group II basestock, and respective minor amounts of an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent other than such a detergent having a basicity index of less than two and a degree of carbonation of 80% or greater and 5 to 500 mass %, based on the mass of the detergent, of an oil-soluble alkyl-substituted phenol other than a hindered phenol. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited.

    摘要翻译: 当发动机由重质燃料油燃料时,中空活塞船用发动机润滑通过包含主要量的含有至少50质量%的II类基础油的润滑粘度的油的组合物和相应的少量高碱性 金属烃基取代的羟基苯甲酸盐洗涤剂,其除碱性指数小于2且碳酸化度为80%以上且5〜500质量%以下的洗涤剂以洗涤剂的质量计,油溶性烷基 除了受阻酚之外的取代苯酚。 由于污染物重质燃料油的存在引起的润滑剂中的沥青质沉淀被防止或抑制。