Oil composition for lubricating an EGR equipped diesel engine and an EGR equipped diesel engine comprising same
    5.
    发明申请
    Oil composition for lubricating an EGR equipped diesel engine and an EGR equipped diesel engine comprising same 有权
    用于润滑配备有EGR的柴油发动机和包括EGR的柴油发动机的EGR组合物

    公开(公告)号:US20060142168A1

    公开(公告)日:2006-06-29

    申请号:US11019256

    申请日:2004-12-23

    IPC分类号: C10M149/02

    摘要: The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: a) 0 to 40 wt. % of one or more ethylenically unsaturated ester compounds of formula (I) wherein R is equal to H or CH3, R1 represents a linear or branched alkyl group with 1 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula —COOR′, wherein R′ is H or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98 wt. % of one or more ethylenically unsaturated ester compounds of formula (II) wherein R is equal to H or CH3, R4 represents a linear or branched alkyl group with 6 to 15 carbon atoms, R5 and R6 independently represent H or a group of the formula —COOR″, wherein R″ is H or an alkyl group with 6 to 15 carbon atoms, c) 0 to 30 wt. % of one or more ethylenically unsaturated ester compounds of formula (III) wherein R is equal to H or CH3, R7 represents a linear or branched alkyl group with 16 to 30 carbon atoms, R8 and R9 independently represent H or a group of the formula —COOR′″, wherein R′″ is H or an alkyl group with 16 to 30 carbon atoms, d) 0 to 30 wt. % vinyl monomers, e) 7 to 25 wt. % of at least one N— dispersant monomer, wherein a)-e) add up to 100 wt. %.

    摘要翻译: 本发明涉及润滑油组合物,包含润滑油组合物的柴油发动机,以及润滑具有废气再循环系统的柴油发动机的方法,包括用润滑油组合物润滑所述发动机,所述润滑油组合物包含润滑油 粘度和聚合N-分散剂增强剂,其包含以下单体单元:a)0至40wt。 %的一种或多种式(I)的烯键式不饱和酯化合物,其中R等于H或CH 3,R 1表示直链或支链烷基,其中1至 5个碳原子,R 2和R 3独立地表示H或式-COOR'的基团,其中R'是H或具有1至5个碳原子的烷基 原子,b)10〜98重量% %的一种或多种式(II)的烯属不饱和酯化合物,其中R等于H或CH 3,R 4表示直链或支链烷基,其中6至 15个碳原子,R 5和R 6独立地表示H或式-COOR“的基团,其中R”是H或具有6至 15个碳原子,c)0-30重量% %的一种或多种式(III)的烯属不饱和酯化合物,其中R等于H或CH 3,R 7表示直链或支链烷基,其中16至 30个碳原子,R 8和R 9独立地表示H或式-COOR“'的基团,其中R”'是H或具有 16〜30个碳原子,d)0〜30重量% %乙烯基单体,e)7〜25wt。 %的至少一种N-分散剂单体,其中a)-e)加到100wt。 %。