| 摘要 |
PROBLEM TO BE SOLVED: To reduce the size of a cylinder head in a direction orthogonal to a cylinder axial line as viewed from the axial direction of a camshaft in an internal combustion engine configured so that a valve gear provided with a main rocker arm driven to open and close an engine valve by a sub-rocker arm driven to oscillate by the camshaft is disposed within a valve gear chamber formed by the cylinder head.SOLUTION: The valve gear V includes main rocker arms 40i and 40e driven to open and close engine valves 10 and 11 by sub-rocker arm groups 30i and 30e driven to oscillate by cams 20i and 20e. Oscillation support parts 52 and 54 and follower contact parts 31c and 34c are disposed in the direction of the cylinder axial line. As viewed from the axial direction of the camshafts Ci and Ce, the sub-rocker arm groups 30i and 30e and the main rocker arms 40i and 40e are disposed on a side where the cylinder axial line Lc is located relative to cam boundary lines L1 and L2. |
