| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a throttle body from being inclined to an intake air inlet pipe to deteriorate the sealing property by integrally providing the contact part to the intake air outlet side-end surface of a throttle body on the circumferential surface of the intake air inlet pipe of an intake manifold in three positions or more along the circumferential direction, and fastening one contact part to the throttle body by a bolt. SOLUTION: An intake manifold 8 is fastened to a cylinder head by a plurality of bolts 16 so that each branch pipe communicates with an intake port to each cylinder, and a throttle body 17 is inserted and connected to an intake air inlet pipe 9. Since the intake air outlet-side end surface 17a of the throttle body 17 touches each contact part 22, 23, 24 integrally provided on the circumferential surface of the intake air inlet pipe 9, the throttle body 17 is fastened to at least one contact part 22 by a bolt 15 in this state. Accordingly, the throttle body 17 can be connected to the intake air inlet pipe 9 in a right attitude without inclining in longitudinal and lateral directions.</p> |
