Patent ID: 7967107

Claim:
A muffler apparatus for a vehicle, comprising: a muffler housing; baffle plates that are disposed in the muffler housing and divide an internal space of the muffler housing; an intake pipe that is supported by at least one of the baffle plates and takes in exhaust gas; and an exhaust pipe that is supported by at least one of the baffle plates and takes in the exhaust gas discharged from the intake pipe and discharges the exhaust gas outside the muffler housing, and of which a pipe line of the exhaust pipe circulates through the internal space of the muffler housing; wherein the pipe line of the exhaust pipe is formed in a U-shape; wherein the baffle plates include a first baffle plate at a front portion of the muffle housing, a second baffle plate at a middle portion thereof, and a third baffle plate at a rear portion thereof; wherein the internal space of the muffler housing is divided into a first chamber, a second chamber, a third chamber, and a fourth chamber in series by the first baffle plate, the second baffle plate, and the third baffle plate; wherein the intake pipe has an inlet formed through the front portion of the muffler housing inside the muffler housing, and an outlet disposed in the second chamber through the first baffle plate; and wherein the exhaust pipe has an inlet disposed in the fourth chamber and an outlet formed through the rear portion of the muffler housing to be communicated with the outside; wherein the pipe line of the exhaust pipe circulates through the third baffle plate, the second baffle plate, the first baffle plate in series and then the first baffle plate, the second baffle plate, and the third baffle plate in series to form a U-shape.