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    Compressor oils having improved oxidation resistance
    4.
    发明授权
    Compressor oils having improved oxidation resistance 有权
    具有改善抗氧化性的压缩机油

    公开(公告)号：US08455406B2

    公开(公告)日：2013-06-04

    申请号：US12914896

    申请日：2010-10-28

    申请人： Ravindra Shah

    发明人： Ravindra Shah

    IPC分类号： C10M169/04

    CPC分类号： C10M169/04 ,  C10M2203/1025 ,  C10M2203/108 ,  C10M2203/1085 ,  C10M2205/163 ,  C10M2205/173 ,  C10M2215/064 ,  C10M2219/066 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/08 ,  C10N2230/10 ,  C10N2230/74 ,  C10N2240/30

    摘要： A compressor lubricant composition providing energy savings and exhibiting excellent oxidation stability is provided, as well as a process for preparation of the lubricant composition. The composition comprises: (i) from 68 to 99.999 wt % of an isomerized base oil or blend of isomerized base oils; (ii) 0.001 through 20 wt % of a blend of ashless additives, the ashless additives having a viscosity range at 40° C. of from 50 mm2/s to 60 mm2/s, a density at 20° C. of from 0.95 through 1.05 g/cm3, a flash point of greater than 100° C. (COC), solubility in mineral oil of greater than 5 wt %, sulfur content of from 4.8 wt % through 6.0 wt %, and phosphorus content of from 2.9 through 3.6 wt %; (iii) less than 1.0 wt % of a dithiocarbamate, wherein the Conradson carbon residue is less than or equal to 3.00. The dithiocarbamate is added to the base oil blend as a top treatment.

    摘要翻译： 提供了提供节能并且表现出优异的氧化稳定性的压缩机润滑剂组合物，以及润滑剂组合物的制备方法。 组合物包含：（i）68至99.999重量％的异构化基础油或异构化基础油的共混物; （ii）0.001至20重量％的无灰添加剂的混合物，40℃下的粘度范围为50mm 2 / s至60mm 2 / s的无灰添加剂，20℃下的密度为0.95至 1.05g / cm3，闪点大于100℃（COC），在矿物油中的溶解度大于5wt％，硫含量为4.8wt％至6.0wt％，磷含量为2.9-3.6 重量％ （iii）小于1.0wt％的二硫代氨基甲酸盐，其中康氏子碳残留小于或等于3.00。 将二硫代氨基甲酸盐作为顶级处理加入到基础油混合物中。

    MARINE ENGINE LUBRICATION
    5.
    发明申请
    MARINE ENGINE LUBRICATION 审中-公开
    海上发动机润滑

    公开(公告)号：US20120037117A1

    公开(公告)日：2012-02-16

    申请号：US13265352

    申请日：2010-04-26

    申请人： Richard Bertram ,  Peter Dowding ,  Joseph Peter Hartley ,  Peter Watts

    发明人： Richard Bertram ,  Peter Dowding ,  Joseph Peter Hartley ,  Peter Watts

    IPC分类号： F01M9/00 ,  C10M129/54

    CPC分类号： C10M163/00 ,  C10M169/045 ,  C10M2203/1025 ,  C10M2203/108 ,  C10M2207/023 ,  C10M2207/262 ,  C10N2230/04 ,  C10N2230/52 ,  C10N2240/102

    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 basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur or a mixture thereof, and respective minor amounts of an over-based 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 detergent, of an oil-soluble alkyl-substituted 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％含有大于或等于90％饱和物的基础油的润滑粘度的油的组合物实现， 小于或等于0.03％的硫或其混合物，以及相应的少量基础金属烃基取代的羟基苯甲酸盐洗涤剂，除了碱度指数小于2且碳酸化度为80％的洗涤剂之外，或 更优选为5〜500质量％，基于洗涤剂的质量，除受阻酚之外的油溶性烷基取代的取代酚。 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。