Patent ID: 8377383

Claim:
An exhaust emission control device wherein an aftertreatment device for depuration of exhaust gas through passing of the gas therethrough is arranged in a casing and incorporated in an exhaust passage, said casing having an outlet connected through a connecting flange with a gas gathering chamber which in turn provides an exhaust passage in a direction different from an axis of said casing, comprising: said gas gathering chamber provided with a mounting portion which extends through the exhaust passage to provide a mounting opening for fastening of the connecting flange from outside, the mounting portion providing said mounting opening being provided at an outer periphery thereof with a curved surface for flow rectification of the exhaust gas, wherein the gas gathering chamber has an outlet connected with a communication body which provides a second exhaust passage in a direction different from the flow direction of the exhaust passage, said gas gathering chamber being provided with a rectifying member which extends from the mounting portion providing the mounting opening to the inlet of said communication body.