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    LUBRICATING OIL COMPOSITION FOR ENGINE MADE OF ALUMINUM ALLOY AND LUBRICATION METHOD
    3.
    发明公开
    LUBRICATING OIL COMPOSITION FOR ENGINE MADE OF ALUMINUM ALLOY AND LUBRICATION METHOD 审中-公开
    MOTORSCHMIERÖLZUSAMMENSETZUNGAUS EINER ALUMINIUMLEGIERUNG UND SCHMIERVERFAHREN DAMIT

    公开(公告)号：EP2829592A1

    公开(公告)日：2015-01-28

    申请号：EP13764396.1

    申请日：2013-03-12

    Applicant: Idemitsu Kosan Co., Ltd

    Inventor： IWASAKI, Junya ,  SHIMIZU, Yasunori ,  TAKASHIMA, Yoriyuki

    IPC: C10M141/08 ,  C10M141/12 ,  C10M133/16 ,  C10M135/34 ,  C10M135/36 ,  C10M139/00 ,  C10N20/00 ,  C10N30/06 ,  C10N40/25

    CPC classification number: C10M161/00 ,  C10M141/08 ,  C10M141/12 ,  C10M2203/1025 ,  C10M2207/026 ,  C10M2207/262 ,  C10M2215/064 ,  C10M2215/086 ,  C10M2215/223 ,  C10M2215/28 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2223/045 ,  C10M2227/00 ,  C10M2229/02 ,  C10N2230/06 ,  C10N2230/42 ,  C10N2230/43 ,  C10N2230/45 ,  C10N2240/10 ,  C10N2260/14 ,  C10N2220/022 ,  C10N2210/02

    Abstract: The invention provides a lubricating oil composition for an engine made of aluminum alloy containing a base oil, a succinimide compound, and a thioheterocyclic compound represented by the following formula (I) and has a sulfur content of 0.10 mass% to 1.00 mass% based on the total amount of the composition, and a phosphorus content and a sulfated ash content, based on the total amount of the composition, falling within specific ranges, and a lubrication method employing the composition. The composition exhibits excellent wear resistance to aluminum alloy sliding parts of engines and can considerably reduce the high-phosphorus ZnDTP content and the metallic detergent content, while excellent wear resistance to aluminum alloy is maintained. The thioheterocyclic compound is represented by the formula:

    (wherein As represents a thioheterocycle; each of R 1 and R 2 independently represents a hydrogen atom, an amino group, a C1 to C50 hydrocarbyl group selected from among an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group, and an aryl group, or, in the case of a hydrocarbyl group, a C1 to C50 heteroatom-containing group having an atom selected from among an oxygen atom, a nitrogen atom, and a sulfur atom, in the hydrocarbyl group; and each of k, l, m, and n is an integer of 0 to 5).

    Abstract translation: 本发明提供一种含有基础油，琥珀酰亚胺化合物和下式（I）表示的硫代杂环化合物的铝合金发动机润滑油组合物，其硫含量为0.10质量％至1.00质量％，基于 组合物的总量，以及基于组合物总量的磷含量和硫酸化灰分含量在特定范围内，以及使用该组合物的润滑方法。 该组合物对发动机的铝合金滑动部件表现出优异的耐磨性，并且可以显着降低高磷ZnDTP含量和金属洗涤剂含量，同时保持对铝合金的优异耐磨性。 硫代杂环化合物由下式表示：（其中，As表示硫杂环; R 1和R 2各自独立地表示氢原子，氨基，选自烷基，环烷基等的C 1〜C 50烃基， 烯基，环烯基和芳基，或者在烃基的情况下，具有选自氧原子，氮原子和硫原子的原子的C1至C50含杂原子的基团， 在烃基中; k，l，m和n分别为0〜5的整数）。

    LUBRICANT OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR PRODUCING SAME, AND METHOD FOR PREVENTING PRE-IGNITION
    5.
    发明公开
    LUBRICANT OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR PRODUCING SAME, AND METHOD FOR PREVENTING PRE-IGNITION 审中-公开

    公开(公告)号：EP3878932A1

    公开(公告)日：2021-09-15

    申请号：EP19882741.2

    申请日：2019-11-07

    Applicant: Idemitsu Kosan Co.,Ltd.

    Inventor： SHIMIZU, Yasunori ,  ISHIKAWA, Motoharu

    IPC: C10M169/04 ,  C10M135/18 ,  C10M137/10 ,  C10N10/02 ,  C10N10/04 ,  C10N10/12 ,  C10N30/00 ,  C10N30/06 ,  C10N40/25

    Abstract: Provided are: a lubricating oil composition for internal combustion engines containing a base oil (A), a metal-based detergent (B) containing a calcium-based detergent (B1), a zinc dialkyldithiophosphate (C), and a molybdenum-containing compound (D), wherein the calcium atom-equivalent content of the component (B1) is more than 100 ppm by mass and 600 ppm by mass or less based on the total amount of the lubricating oil composition, the magnesium atom-equivalent content of a magnesium-based detergent (B2) is less than 200 ppm by mass based on the total amount of the lubricating oil composition, the sodium atom-equivalent content of a sodium-based detergent (B3) is less than 200 ppm by mass based on the total amount of the lubricating oil composition, the content ratio of the phosphorus atom derived from the component (C) to the calcium atom derived from the component (B1) [P/Ca] is 0.25 or more by mass, and the sulfated ash content is 0.7% by mass or less; and a method for producing the lubricating oil composition. Also provided is a method for suppressing pre-ignition, using the lubricating oil composition for internal combustion engines. The lubricating oil composition has a sufficient friction-reducing effect, can prevent an occurrence of LSPI in spark-ignition internal combustion engines, and has reduced adverse effects on exhaust gas purification devices. The invention provides the lubricating oil composition for internal combustion engines, a method for producing it, and a method for suppressing pre-ignition using the lubricating oil composition for internal combustion engines.

    LUBRICANT COMPOSITION FOR INTERNAL COMBUSTION ENGINE OIL
    7.
    发明公开
    LUBRICANT COMPOSITION FOR INTERNAL COMBUSTION ENGINE OIL 有权
    用于内燃机油的润滑剂组合物

    公开(公告)号：EP2829591A1

    公开(公告)日：2015-01-28

    申请号：EP13763683.3

    申请日：2013-03-19

    Applicant: Idemitsu Kosan Co., Ltd

    Inventor： SHIMIZU, Yasunori ,  IWASAKI, Junya

    IPC: C10M141/08 ,  C10M133/40 ,  C10M135/32 ,  C10M135/36 ,  C10N40/25

    CPC classification number: C10M141/08 ,  C10M141/12 ,  C10M2203/1025 ,  C10M2205/02 ,  C10M2207/028 ,  C10M2209/086 ,  C10M2215/042 ,  C10M2215/221 ,  C10M2215/223 ,  C10M2215/28 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106 ,  C10M2223/045 ,  C10M2229/02 ,  C10N2230/04 ,  C10N2230/06 ,  C10N2230/08 ,  C10N2230/42 ,  C10N2230/45 ,  C10N2240/10 ,  C10N2260/14 ,  C10N2210/02 ,  C10N2220/022

    Abstract: The lubricating oil composition for internal combustion engines of the present invention contains a base oil, a thioheterocyclic compound represented by the following formula (I)

    (wherein As represents a thioheterocycle; each of R 1 and R 2 represents a hydrogen atom, an amino group, a C1 to C50 hydrocarbyl group selected from among an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group, and an aryl group, or, in the case of a hydrocarbyl group, a C1 to C50 heteroatom-containing group having an atom selected from among an oxygen atom, a nitrogen atom, and a sulfur atom, in the hydrocarbyl group; and each of k, l, m, and n is an integer of 0 to 5), and an aminoalcohol compound having, in the molecule thereof, one or more amino groups and one or more hydroxyl groups, wherein the composition has a phosphorus content (P mass%) and a sulfated ash content (M mass%), based on the total amount of the composition, satisfying any of the following conditions A to C: condition A: P

    Abstract translation: 本发明的内燃机用润滑油组合物含有基油，下述式（I）所示的硫代杂环化合物（式中，As表示硫杂环，R 1及R 2分别表示氢原子，氨基， 选自烷基，环烷基，烯基，环烯基和芳基的C1-C50烃基，或者在烃基的情况下，C1-C50含杂原子的基团，其具有原子 选自烃基中的氧原子，氮原子和硫原子;并且k，l，m和n中的每一个是0至5的整数）和氨基醇化合物，所述氨基醇化合物在分子中 ，一个或多个氨基和一个或多个羟基，其中组合物具有基于组合物总量的磷含量（P质量％）和硫酸化灰分含量（M质量％），满足 以下条件A至C：条件A： P <0.03，且M <0.3; 条件B：P <0.03，且0.3≤M≤0.6; 条件C：0.03≤P≤0.06，且M <0.3。 本发明的润滑油组合物可以在保持高温去污性和耐磨性的同时显着降低含磷添加剂和金属清净剂的量。

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