Ceramic gas exchange valve for internal combustion engines has valve shaft with conical enlargement and correspondingly shaped sleeve fitted over it

摘要

The valve has a shaft and a sleeve between shaft and spring plate. The valve shaft (1) has a conical enlargement at its free end in the area of the sleeve (5). The inner contour (6) of the sleeve has the negative shape of the conical enlargement. The enlargement extends from the smaller diameter of a truncated cone-shaped transitional section (4) of the valve shaft. The sleeve has a mainly cylindrical outer contour (7), and the spring plate (8) is fitted clamped to this contour.