| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an engine capable of reducing emission amount of exhaust noise.SOLUTION: An exhaust outlet pipe 3 in an exhaust outlet chamber 2a includes a front side pore-free circumferential part 4 and right and left both side perforated circumferential parts 5.5, exhaust introduction holes 3c are opened on the right and left both side perforated circumferential parts 5.5 and, when a pair of right and left virtual lines 7.7 which connect right and left both side edges 1c.1c of an exhaust outlet edge surface 1a of an exhaust purification part 1 and a center axial line 3d of the exhaust outlet pipe 3 are supposed on a cross-section figure cut by a flat plane which crosses orthogonally with the center axial line 3d of the exhaust outlet pipe 3 and runs along the center axial line 1b of the exhaust purification part 1, boundaries 6.6 of front side pore-free circumferential part 4 and right and left both side perforated circumferential parts 5.5 are arranged on a rear side region divided by the right and left pair of virtual lines 7.7. |
