| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a resin-made intake manifold that can enhance distribution performance of air (mixed gas) to each branch passage while maintaining a flow rate performance. <P>SOLUTION: In a resin-made intake manifold 1, a main flow path part 37 of a surge tank 20 consists of a control wall 58 formed to project to the inside of a flow path, an intake introduction port side region 60 formed on an intake introduction port 38 with respect to the control wall 58 in an arrangement direction of a plurality of branch passages 16, and a depth side region 62 formed on a depth side of a flow path with respect to the control wall 58 in the arrangement direction of the branch passages. An area of a flow path cross section orthogonal to a flow axis L2 in the depth side region 62 is smaller than an area of the flow path cross section orthogonal to the flow axis L2 in the intake introduction port side region 60. <P>COPYRIGHT: (C)2013,JPO&INPIT |
