| 摘要 |
PROBLEM TO BE SOLVED: To provide an air intake system of a vehicle capable of making clear sound by preventing unclear intake noise. SOLUTION: This air intake system of an internal combustion engine has an intake air introduction port 10 to introduce intake air and a volumetric part 1 to which a plurality of branch parts 2 to 5 respectively communicated to an air intake port of an engine and acoustic control parts 6 to 9 applied with dimple work are respectively provided at least on parts facing against branch openings 11 to 14 on an internal wall surface of the volumetric part 1. COPYRIGHT: (C)2006,JPO&NCIPI
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