Rockerarm system for controlling valves in an internal combustion engine

摘要

A rocker arm system for internal combustion engines that directly position the top of the rocker arm in perpendicular operative contact with the valve stem of the cylinder head. The valve stem is angled toward the side wall of the cylinder block. The rocker arm is positioned along the side wall of the cylinder block and the cylinder head with the valve stem can be removed from the cylinder block without removing the rocker arm. The bottom end of the rocker arm is in operative contact with the cam of the camshaft. The bottom ends of rocker arms can be arced so as to straddle the camshaft. Gearing between the crankshaft and the camshaft to adjust the camshaft to upper and lower positions along a bottom arc of the camshaft so as to control the valve openings can be included.