| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a welding structure which materialize stable high joining strength besides preventing a die structure for molding respective members from becoming complicated. <P>SOLUTION: An intake pipe side welding rib 22 in a manifold body 14 and a housing side welding rib 23 in a gas introduction chamber housing 17 are constituted of two vertical planes 30, 31 provided parallel to each other and having a difference in elevation and of inclined surface 32, 33 situated therebetween. The vertical planes 30, 31 and inclined surfaces 32, 33 are alternately connected to each other to form an annular shape. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
