| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary air supply device of an internal combustion engine capable of appropriately, effectively supplying secondary air while realizing compactification and the like.SOLUTION: An internal combustion engine includes an exhaust passage configured by connecting an exhaust pipe to an exhaust port 18 provided in each of cylinder heads 13 of a plurality of cylinders. A secondary air supply device comprises a reed valve 52 controlling a quantity of secondary air supplied to the exhaust port 18 of each cylinder; and a reed valve storage chamber 54 containing the reed valve 52. The reed valve storage chamber 54 storing the reed valve 52 is formed integrally on an exhaust-side sidewall of the cylinder head 13 in which an opening end portion of the exhaust port 18 is arranged in a cylinder arrangement direction, and the reed valve storage chambers 54 of the adjacent cylinders are arranged to be close and adjacent to each other. |
