Chain drive

摘要

A dampened chain drive for an IC engine has a circular plastic damping element loosely clamped between the two sections of the chain drive, and between the driven and driving wheels for the chain. The damping element presses the return section of chain outwards while the load section remains straight when under load. The damping element is compressed into an elliptical shape and rolls inside the chain drive. The damping element also dampens any lateral movements of the chain such as are generated if the two chain wheels are not truly in line. The distance between the outer points of contact of the damping element with the chain is greater than the diameter of the chain wheels and less than the unsprung diameter of the damping ring.