VALVE TRAIN APPARATUS FOR REDUCING FRICTION OF INTERNAL COMBUSTION ENGINE

摘要

By minimizing radius of a base unit of a cam of a valve train compared to conventional one, the entire length of the circumferential surface of the cam is minimized, so that the rolling contact length of the cam and a roller per one rotation of a cam shaft is reduced. By reducing the circumferential length of the cam as in the present invention, driving friction torque of the cam shaft is improved by 50% or more, and such an effect of improving friction improves fuel consumption of an internal combustion engine to 1-2%.;COPYRIGHT KIPO 2018