| 摘要 |
PROBLEM TO BE SOLVED: To suppress a back flow of blow-by gas with a simple structure.SOLUTION: An intake pipe structure 1 of an engine is equipped with a surge tank 12 positioned upstream an intake manifold 110 and downstream a throttle body 130, and formed with an opening 121a of a PCV pipe inside. In the inside of the surge tank 12 and at the opening 121a of the PCV pipe, a partition wall 12b extending from an upper wall 12a to a straight line E1 connecting an upper end of a flow path 130x of the throttle body 130 and an upper end of a flow path of the intake manifold 110 is further formed.SELECTED DRAWING: Figure 1 |
