Rocker arm
    10.
    发明授权
    Rocker arm 失效
    摇臂

    公开(公告)号:US07000582B2

    公开(公告)日:2006-02-21

    申请号:US10490848

    申请日:2002-10-03

    IPC分类号: F01L1/18

    摘要: The rocker arm 1 has a fitting surface 6 on the opposite sides of which guide surfaces 21 are formed, such that the guide surfaces 21 are inclined to be closer to each other toward their tip ends. Even when the valve stem 20 is displaced in the widthwise direction of the fitting surface 6, the outer peripheral surface of the base end portion of the valve stem 20 comes into contact with only the tip end of one of the guide surfaces 21. Consequently, lubrication is improved and friction moment is decreased in the contact area, so that friction resistance is suppressed between the guide surfaces 21 and the outer peripheral surface of the base end of the valve stem 20 to easily obtain high performance of the engine.

    摘要翻译: 摇臂1在其相对侧上具有配合表面6,导向表面21形成为使得引导表面21朝向其末端彼此更靠近地倾斜。 即使当阀杆20在装配面6的宽度方向上移位时,阀杆20的基端部的外周面仅与一个导向面21的前端接触。 因此,提高了润滑性,并且在接触面积上摩擦力矩降低,使得导向面21和阀杆20的基端的外周面之间的摩擦阻力被抑制,容易获得发动机的高性能。