CAM-FOLLOWER FOR AN INTERNAL COMBUSTION ENGINE VALVE GEAR MECHANISM

摘要

The invention concerns the lubrication of the cam-follower roller (8) of an internal combustion engine valve gear mechanism, said roller (8) being acted on by a cam. Lubrication occurs via a bore (12) directed towards the periphery of the roller (8). According to the invention, a throttle device reducing the cross-section of the bore (12) is arranged upstream thereof. As a result, the bore (12) can be produced with a large diameter permitting economical manufacture whilst the loss of oil via the bore (12) is reduced owing to the upstream throttle.