SWITCHABLE FINGER FOLLOWER WITH LASH ADJUSTMENT SHIM

摘要

A switchable finger follower, including an inner lever and an outer lever. The outer lever is mounted for pivoting movement to the inner lever. A coupling device is located on one of the inner or outer levers and has a coupling pin arranged to move between a locking position, in which the inner and outer levers are connected together for movement in an activation direction, and an unlocked position, in which the inner lever is pivotable relative to the outer lever. A coupling projection is located on the other of the inner or outer lever. The coupling pin engages beneath a coupling surface of the projection in the locking position, and a stop surface of the projection contacts a second stop surface on the one of the inner lever or the outer lever. The second stop surface is located on a removable shim that is replaceable for lash adjustment.

主权项

1. A switchable roller finger follower having at least two lift modes for a valve train of an internal combustion engine, comprising:
an inner lever having first and second ends; an outer lever with two outer arms that extend along longitudinal sides of the inner lever, mounted for pivoting movement at the first end of the inner lever by a pivot axle; a lost motion spring connected between the inner lever and the outer lever; a coupling device located on one of the inner lever or the outer lever on an end opposite from the pivot axle that includes a coupling pin arranged to move in a longitudinal direction between a locking position, in which the inner lever and the outer lever are connected together for movement at least in an activation direction of a valve, and an unlocked position, in which the outer lever is pivotable relative to the inner lever; a coupling projection with a coupling surface and a stop surface located on the other of the inner lever or the outer lever, the coupling pin engages beneath the coupling surface in the locking position and the stop surface of the coupling projection contacts a second stop surface on the one of the inner lever or the outer lever; and the second stop surface is located on a removable shim connected to the one of the inner lever or the outer lever.