COATED PISTON AND A METHOD OF MAKING A COATED PISTON
    12.
    发明公开
    COATED PISTON AND A METHOD OF MAKING A COATED PISTON 审中-公开
    BESCHICHTETER KOLBEN UND VERFAHREN ZUR HERSTELLUNG EINES BESCHICHTETEN KOLBENS

    公开(公告)号:EP2773860A1

    公开(公告)日:2014-09-10

    申请号:EP12791605.4

    申请日:2012-10-31

    Abstract: A piston for a diesel internal combustion engine including a crown portion at least partially formed of steel and having a combustion surface with a combustion bowl formed therein is provided. The combustion bowl presents a combustion bowl rim area, and a coating including at least one of a noble metal and a refractory metal is applied to substantially only the combustion bowl rim area. The coating is preferably applied in the areas of the combustion bowl rim area that are in line with the sprays of diesel fuel when the piston is in a top dead center position during operation of the engine.

    Abstract translation: 一种柴油机内燃机的活塞,其特征在于,具备至少部分由钢制成的具有形成有燃烧碗的燃烧面的冠部的冠部。 燃烧碗具有燃烧碗边缘区域,并且包括贵金属和难熔金属中的至少一种的涂层基本上被施加到燃烧碗边缘区域。 当在发动机操作期间活塞处于上止点位置时,该涂层优选地应用于燃烧碗形边缘区域与柴油燃料喷雾一致的区域中。

    COATED PISTON AND A METHOD OF MAKING A COATED PISTON
    16.
    发明申请
    COATED PISTON AND A METHOD OF MAKING A COATED PISTON 审中-公开
    涂层活塞和制造涂层活塞的方法

    公开(公告)号:WO2013066924A1

    公开(公告)日:2013-05-10

    申请号:PCT/US2012/062667

    申请日:2012-10-31

    Abstract: A piston for a diesel internal combustion engine including a crown portion at least partially formed of steel and having a combustion surface with a combustion bowl formed therein is provided. The combustion bowl presents a combustion bowl rim area, and a coating including at least one of a noble metal and a refractory metal is applied to substantially only the combustion bowl rim area. The coating is preferably applied in the areas of the combustion bowl rim area that are in line with the sprays of diesel fuel when the piston is in a top dead center position during operation of the engine.

    Abstract translation: 一种柴油机内燃机的活塞,其特征在于,具备至少部分由钢制成的具有形成有燃烧碗的燃烧面的冠部的冠部。 燃烧碗具有燃烧碗边缘区域,并且包括贵金属和难熔金属中的至少一种的涂层仅基本上施加于燃烧碗边缘区域。 当在发动机操作期间活塞处于上止点位置时,该涂层优选地应用于燃烧碗边缘区域与柴油燃料喷雾一致的区域中。

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