Patent ID: 6499561
Filing Date: 2002-12-31
Classification: B60K,F01N

Abstract:
A muffler for an all terrain vehicle having a body, an engine, a carrier supported on a rear portion of the body and rear wheels, extended rearwardly from an exhaust pipe connected to the engine comprising:a rear end surface of the muffler is parallel to the surface of the ground when the all terrain vehicle is leaned against a support with a rear end of the carrier and rear portions of the two rear wheels in contact with the ground, said rear end surface being inclined at an angle to a plane perpendicular to a longitudinal axis of the muffler; and an auxiliary expansion chamber having a straight cylindrical shape projecting inwardly from and perpendicular to said rear end surface of said muffler and at an angle relative to the longitudinal axis of muffler, permitting a front end of the auxiliary expansion chamber to be positioned side by side to a rear end of a first connecting pipe in a rear expansion chamber, the auxiliary expansion chamber being contained entirely within said rear expansion chamber.