| 摘要 |
PROBLEM TO BE SOLVED: To improve performance of a valve train regarding a valve gear and a supporting member. SOLUTION: A pivot 60 is inserted into the attachment hole 13 of a cylinder head 10. The pivot 60 has a hollow cylinder-shape, and has an oil space 67 into which oil from an oil gallery 14 flows. The pivot 60 supports a rocker arm 40. The rocker arm 40 opens and closes a valve 30 while interlocking with a cam 90 through a roller 42. The pivot 60 is formed with a through-hole 52 having one end opened to the inner surface of a peripheral wall 61 and facing the oil space 67, while supporting the rocker arm 40, and the other end opened to the outer surface of the peripheral wall 61 and facing the atmosphere. COPYRIGHT: (C)2011,JPO&INPIT |
