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    Sliding structure for shaft member with improved abrasion resistance and injector
    1.
    发明申请
    Sliding structure for shaft member with improved abrasion resistance and injector 有权
    轴构件的滑动结构具有改进的耐磨性和喷射器

    公开(公告)号：US20040144868A1

    公开(公告)日：2004-07-29

    申请号：US10759106

    申请日：2004-01-20

    申请人： DENSO CORPORATION

    发明人： Tetsuya Yoshimura ,  Shuichi Matsumoto

    IPC分类号： F02M059/00

    CPC分类号： F02M47/027 ,  F02M63/0026 ,  F02M2200/703

    摘要： In a sliding structure in which a shaft member is retained slidably in a guide hole, the lack of an oil film caused by the edge contact of the shaft member to which a pressing load in the axial direction is applied is prevented. With the fact being taken into account that end portions 25c1 and 25c2, which are always in slidable contact with a side surface 1232a of a guide hole 1232, of a side surface 25c of a shaft member 251 are the partial edge portion, a plurality of labyrinth grooves 2501 and 2502 are formed in the end portions 25c1 and 25c2, respectively, thereby it is possible for an oil film to cover the entire contact portion without increasing the groove width extremely. Because the groove width is not increased extremely, the length of the sliding portions can be ensured.

    摘要翻译： 在轴构件可滑动地保持在引导孔中的滑动结构中，防止由于轴向施加轴向压力负载的轴构件的边缘接触引起的油膜的缺乏。 考虑到轴构件251的侧面25c总是与导向孔1232的侧面1232a滑动接触的端部25c1,25c2是部分边缘部， 迷宫槽2501和2502分别形成在端部25c1和25c2中，从而油膜可以覆盖整个接触部分而不会增大沟槽宽度。 由于槽宽度不会极大地增加，所以能够确保滑动部的长度。