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    Cylinder liner, cylinder block, and method for manufacturing cylinder liner
    8.
    发明申请
    Cylinder liner, cylinder block, and method for manufacturing cylinder liner 有权
    气缸套，气缸体及气缸套制造方法

    公开(公告)号：US20070012177A1

    公开(公告)日：2007-01-18

    申请号：US11480995

    申请日：2006-07-06

    申请人： Noritaka Miyamoto ,  Masaki Hirano ,  Toshihiro Takami ,  Kouhei Shibata ,  Nobuyuki Yamashita ,  Toshihiro Mihara ,  Giichiro Saito ,  Masami Horigome ,  Takashi Sato

    发明人： Noritaka Miyamoto ,  Masaki Hirano ,  Toshihiro Takami ,  Kouhei Shibata ,  Nobuyuki Yamashita ,  Toshihiro Mihara ,  Giichiro Saito ,  Masami Horigome ,  Takashi Sato

    IPC分类号： F16J10/00 ,  F02F1/00 ,  B23P11/00

    CPC分类号： F02F1/004 ,  B22D19/0009 ,  C23C4/02 ,  F05C2251/048 ,  Y10T29/49272

    摘要： A cylinder liner for an engine cylinder block. A roughening process is performed only on an upper region of the outer surface of the cylinder liner. This increases adhesiveness with a sprayed layer at the upper region compared to a lower region of the liner outer surface. Therefore, difference in thermal conductance is produced in the axial direction of the cylinder liner. This maintains the wall temperature of the cylinder bore in an appropriate temperature range. Even if adhesiveness at the lower region of the liner outer surface is low, bottleneck-shaped projections are distributed on the liner outer surface. Thus, the bonding strength between the cylinder liner and the sprayed layer and the cylinder liner and the cylinder block via the sprayed layer is sufficient. This maintains the roundness of the cylinder bore and prevents fuel efficiency from being lowered by exhaust gas loss and mechanical loss.

    摘要翻译： 用于发动机气缸体的气缸套。 仅在气缸套的外表面的上部区域进行粗糙化处理。 与衬垫外表面的下部区域相比，这增加了与上部区域的喷涂层的粘附性。 因此，在气缸套的轴向上产生导热性差。 这将气缸孔的壁温保持在适当的温度范围内。 即使在衬套外表面的下部区域的粘合性低，瓶颈状的突起分布在衬套外表面上。 因此，气缸套与喷涂层之间的接合强度以及气缸套和气缸体通过喷涂层的结合强度足够。 这保持了气缸孔的圆度，并且通过废气损失和机械损失来防止燃料效率降低。