| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable valve train in which the deformation of a control shaft is suppressed. SOLUTION: This variable valve train 50 comprises a camshaft 51 having a cam 51a, a rocker arm 61 for intake valve, an oscillating cam 64, a center rocker arm 62 interposed between the oscillating cam 64 and the cam 51a and transmitting the displacement of the cam 51a to the oscillating cam 64, a rocker shaft 52 for intake valve swingably supporting the rocker arm 61 for intake valve, supporting the center rocker arm 62, and controlling the attitude of the center rocker arm 62 by rotating around the center axis, first to third holders 300-302 holding the rocker shaft 52 for intake valve and secured to the mounting surface 312 of a cylinder head 12, and second bolts 304 extending through the first-third holders 300-302 diagonally relative to the mounting surface 312 and securing the first to third holders 300-302 to the cylinder head 12. COPYRIGHT: (C)2008,JPO&INPIT
|
