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    • 79. 发明申请
    • METHOD FOR IMPROVING ENGINE FUEL EFFICIENCY
    • 改善发动机燃油效率的方法
    • WO2013074498A1
    • 2013-05-23
    • PCT/US2012/064781
    • 2012-11-13
    • EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    • LYON, Kristen, A.KELLY, Kevin, J.MAXWELL, William, L.DECKMAN, Douglas, E.
    • C10M167/00
    • C10M169/02C10M167/00C10M2207/262C10M2219/046C10M2223/045C10N2210/01C10N2210/02C10N2220/022C10N2230/02C10N2230/04C10N2230/06C10N2230/54C10N2230/68C10N2240/10
    • A method for improving fuel efficiency, while maintaining or improving wear protection, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil having a HTHS viscosity of less than 2.6 cP at 150°C. The formulated oil has a composition that comprises a lubricating oil base stock as a major component, and zinc dialkyl dithio phosphate, a mixture of (i) at least two alkali metal detergents, (ii) at least two alkaline earth metal detergents, or (iii) one or more alkali metal detergents and one or more alkaline earth metal detergents; and a viscosity index improver, as minor components. A lubricating engine oil having a composition comprising a lubricating oil base stock as a major component, and a zinc dialkyl dithio phosphate, a mixture of (i) at least two alkali metal detergents, (ii) at least two alkaline earth metal detergents, or (iii) one or more alkali metal detergents and one or more alkaline earth metal detergents, e.g., magnesium sulfonate and calcium salicylate; and a viscosity index improver, as minor components. The lubricating oil has a HTHS viscosity of less than 2.6 cP at 150°C. The composition contains less than 2 weight percent of the viscosity index improver, based on the total weight of the formulated oil or lubricating engine oil. The composition is sufficient for the formulated oil or lubricating engine oil to pass wear protection requirements of one or more engine tests selected from TU3M, Sequence IIIG, Sequence IVA and OM646LA.
    • 在通过使用在150℃下使用HTHS粘度小于2.6cP的配制油作为润滑油的情况下,在用润滑油润滑的发动机中提高燃料效率的同时保持或改进磨损保护的方法。 配制油具有包含润滑油基础油料作为主要成分的组合物和二烷基二硫代磷酸锌,(i)至少两种碱金属洗涤剂,(ii)至少两种碱土金属洗涤剂或( iii)一种或多种碱金属洗涤剂和一种或多种碱土金属洗涤剂; 和粘度指数改进剂,作为次要组分。 一种润滑发动机油,其具有包含润滑油基础油料作为主要成分的组合物和二烷基二硫代磷酸锌,(i)至少两种碱金属洗涤剂,(ii)至少两种碱土金属洗涤剂或 (iii)一种或多种碱金属洗涤剂和一种或多种碱土金属洗涤剂,例如磺酸镁和水杨酸钙; 和粘度指数改进剂,作为次要组分。 润滑油在150℃下的HTHS粘度小于2.6cP。 基于配制的油或润滑发动机油的总重量,组合物含有小于2重量%的粘度指数改进剂。 组合物足以使配制的油或润滑油发动机油通过一种或多种选自TU3M,序列IIIG,序列IVA和OM646LA的发动机试验的磨损保护要求。