ENGINE VALVE DRIVER

摘要

An intermediate rocker member 10 is disposed between a swing cam face 9b and a pressurized rocker face 11b of the rocker arm 11, an opening duration and a lift of the valve can be continuously adjusted by displacing contact point c, c', and the rocker lever ratio (Lv/Lc) for a shorter opening duration of the valve is determined to be larger than that for a longer opening duration of the valve. <IMAGE>