Cam shaft for use in internal-combustion engine, has shaft section whose axial angular impulse increases towards ends of shaft section in one partial section and decreases in other partial section that is attached to former partial section

摘要

The shaft (13) has a shaft section (7), in which a set of cams (3a-3c) is arranged, where the shaft section is supported at both ends (16a, 16b) in a rotatable manner. An axial angular impulse of the shaft section increases towards the ends in a partial section (7a) based on the ends of and decreases in another partial section (7b), where the partial section (7b) is attached to the section (7a). An outer diameter of the shaft section increases in the section (7a) and decreases in the section (7b), respectively. A borehole (12) is provided in an interior of the shaft section.