| 摘要 |
PURPOSE:To aim at miniaturization in the engine head, by connecting one side of suction tappet system camshafts to a crankshaft interlocking, and connecting both these suction tappet system camshafts interlocking to each other. CONSTITUTION:One side suction tappet system camshaft 82 and a crankshaft 7 are interlockingly connected to each other via a primary timing transmission gear 10. And, both these suction tappet system camshafts 81 and 82 are interlocking connected to each other via a secondary timing transmission gear 11. And, these suction-exhaust tappet system camshafts 8 and 9 of each of banks 21 and 22 are interlocking connected to each other via a tertiary timing transmission gear 12. With this constitution, since a large diametral speed reducing wheel is merely installed in one side tappet system camshaft alone, the engine head is miniaturizable. |
