Patent ID: 7931120

Claim:
An exhaust device for a vehicle, comprising: an exhaust pipe including a first end portion and a second end portion, the first end portion of the exhaust pipe being connectable to an engine of the vehicle; a muffler comprising an outer wall defining an internal space of the muffler, the outer wall of the muffler defined by at least a first member and a second member connected to a longitudinal end of the first member such that the first member and the second member extend consecutively along a length of the muffler, the muffler additionally comprising a third member arranged to extend within the first member, and wherein the second end portion of the exhaust pipe is located within said internal space; a first purification member arranged to purify exhaust gas; an air supply pipe arranged to supply air to the exhaust pipe, the air supply pipe comprising: a first end of the air supply pipe supported by a portion of the exhaust pipe located within the internal space of the muffler, an opening at the first end of the air supply pipe discharging into the exhaust pipe; a second end of the air supply pipe supported by an edge of the first member, an edge of the second member, and an edge of the third member, wherein the second end is interposed between the edges of the first and third members and the edge of the second member so that the air supply pipe extends to the outside of the muffler via a through hole in the outer wall; and a solid wall extending between the first end and the second end; wherein the air supply pipe is arranged to supply air to the exhaust pipe at a location upstream from the first purification member relative to a flow of exhaust gas within the exhaust pipe.