| 摘要 |
The present invention relates to a roller-shaped bucket tappet for decreasing a frictional force between a camshaft and the bucket tappet in a valve train system. The roller-shaped bucket tappet according to the present invention has a novel structure such that a roller is arranged on a surface in contact with a camshaft. According to the present invention, the fuel efficiency of a vehicle is improved by converting contact between the camshaft and the bucket tappet in the valve train system of the vehicle, from traditional sliding movement to rolling movement, thereby generating little frictional force therebetween. |
