| 摘要 |
<p>PURPOSE:To prevent the generation of irregular motions such as jumping of an intake exhaust valves, and secure the highly precise control of the valve timing. CONSTITUTION:A disk housing 34 which is provided between a driving shaft 21 and a cam shaft 22 and is movable in the radial direction through a moving means, and a disk 29 which is rotatably held in a supporting hole of the disk housing 34 and whose center (Y) is eccentrically moved in the direction of the axis (X) of the driving shaft 21 as the disk housing 34 is moved are provided. The moving means consists of a first eccentric cam 41 and a second eccentric cam 43 provided on each end part of the disk housing 34, and the rotational directions of the respective eccentric cams 41, 43 are provided so as to be opposite to each other to make the locus of the center movement of the disk 29 linear.</p> |
