| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust emission control device capable of sufficiently defusing a reducer by increasing the current speed of exhaust gas flowing in a pipe.SOLUTION: An exhaust emission control device for clarifying exhaust gas flowing through an exhaust air passage of an engine comprises: a cylindrical first casing 2; a pipe 3 arranged on the downstream side of the first casing 2, interpolated into the first casing 2 to extend substantially perpendicularly to an axial direction of the first casing 2, and having an open hole 15 communicating with the first casing 2; and fuel injection equipment 13 for injecting a reducer into the pipe 3 from the upstream end part of the pipe 3, in which a contraction flow passage part 6, which is becoming narrower from the upstream toward the downstream in an axial direction of the pipe 3, is formed in an exhaust air passage 1 of the first casing 2. |
