| 摘要 |
PROBLEM TO BE SOLVED: To uniformly generate flow distribution when a flow adjusting device is operated, in an engine exhaust device provided with a honeycomb structure having two kinds of flow regions and the flow adjusting device. SOLUTION: During low temperature starting of an engine, a switching fluid supplied through a switching fluid flow pipe 26 comes into contact with a switch unit 25, by radially diffusing, in a first region 22 with a flow of a honeycomb structure 20 substantially not obstructed, a negative flow is generated. On the other hand, exhaust gas discharged from the engine comes into contact with an exhaust gas switching member 27, by a radially diffused switching fluid, to be directed toward a second region 23 with a flow relatively obstructed. In this way, flow distribution of exhaust gas flowing in the second region 23 is uniformly generated. |
