Valve lifting arrangement
    1.
    发明授权
    Valve lifting arrangement 失效
    阀提升装置

    公开(公告)号:US07146948B1

    公开(公告)日:2006-12-12

    申请号:US11162995

    申请日:2005-09-30

    Inventor: Clinton D Eells

    Abstract: A valve actuating assembly for opening and closing a valve includes a cam mounted on a camshaft and enclosed by a pair of rotary cam guides each of which includes a roller channel having an outer race for receiving opposed ends of a roller that extends transversely from the lowermost end of a valve lifter disposed between the cam guides with the lifter being mounted to a connecting rod. The lifter has a radius at the lowermost end for engagement with the cam during certain engine phases, and the connecting rod is pivotally attached to a rocker arm, and the rocker arm attached to a valve. A valve spring mounted on the stem of the valve extends and compresses coincident with the rotation of the cam guides and contact of the roller ends with the outer races of the cam guides thereby actuating the lifter to open and close the valve with positive force and wherein the point of contact for valve opening and closing transfers between the engagement of the roller ends with the outer races and the radius against the cam during the various engine phases with the valve spring holding the valve in the closed position during certain phases through the exertion of positive force.

    Abstract translation: 用于打开和关闭阀的阀门致动组件包括安装在凸轮轴上并由一对旋转凸轮引导件包围的凸轮,每个旋转凸轮引导件包括具有用于容纳从最下面横向延伸的辊的相对端的外圈的滚子通道 设置在凸轮引导件之间的升降机的端部安装有连杆。 升降机在最下端具有半径,用于在某些发动机相位期间与凸轮接合,并且连杆可枢转地连接到摇臂上,并且摇臂连接到阀。 安装在阀的杆上的阀弹簧与凸轮引导件的旋转一致并且与凸轮引导件的滚子端部与凸轮引导件的外圈接触,使驱动升降器以正向力打开和关闭阀门,并且其中 在各种发动机阶段期间,在端部与滚子端部的接合以及相对于凸轮的半径之间,阀门开启和关闭的接触点转移,阀门弹簧在某些阶段期间将阀门保持在关闭位置, 积极的力量

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