公开(公告)号：US5680838A

公开(公告)日：1997-10-28

申请号：US731801

申请日：1996-10-21

申请人： Gary Eugene See ,  John Joseph Burns

发明人： Gary Eugene See ,  John Joseph Burns

IPC分类号： F01L1/24 ,  F01L1/46

CPC分类号： F01L1/2411 ,  F01L1/46

摘要： A valve actuation assembly for an internal combustion engine is disclosed in which a rotatable rocker arm assembly is actuated by an engine driven camshaft to move a poppet valve reciprocably. The rocker arm assembly includes a hydraulic lash adjuster for disposition between the rocker arm and the valve stem. The lash adjuster includes an actuator at one end having an axially extending neck which terminates in an enlarged head. The enlarged head engages a foot assembly which includes a disk having a socket in which the head is positioned. Retention of the foot member to the enlarged head is through an interference between the perimeter of the enlarged head portion and the socket opening which is defined by a radially inwardly extending flange. Assembly of the foot member onto the enlarged head portion of the lash adjuster body is through a differential heat and/or cooling of the components which causes the interference to be temporarily eliminated through thermal expansion and/or contraction of the two components allowing the head portion to be inserted into the socket. Following assembly, the thermal differential is eliminated and the interference is re-established, permanently fixing the foot member to the lash adjuster body.

摘要翻译： 公开了一种用于内燃机的阀致动组件，其中可旋转的摇臂组件由发动机驱动的凸轮轴致动以可往复地移动提升阀。 摇臂组件包括用于在摇臂和阀杆之间配置的液压间隙调节器。 间隙调节器包括在一端的致动器，其具有以扩大的头部终止的轴向延伸的颈部。 扩大的头部接合脚组件，脚部组件包括具有插头的盘，头部位于该插座中。 足部构件保持到扩大的头部是通过扩大的头部的周边和由径向向内延伸的凸缘限定的插座开口之间的干涉。 将脚构件组装到间隙调节器主体的扩大头部上是通过部件的差热和/或冷却来实现的，通过两个部件的热膨胀和/或收缩暂时消除干扰，允许头部 插入插座。 在组装之后，消除热差异并重新建立干涉，将脚部件永久固定到间隙调节器本体。