Patent ID: 7287622
Filing Date: 2007-10-30
Classification: F01N

Abstract:
1. A muffler for receiving exhaust gas from an internal combustion engine, the muffler comprising: an outer shell having a length defined by a first end wall and a second end wall; a first chamber located in the outer shell; a main chamber located in the outer shell and adjacent the first chamber into which exhaust gases are channeled, the main chamber having an exit, a first region and a second region both in fluid communication with one another; an exhaust pipe in fluid communication with said main chamber exit, said exhaust pipe extending within said main chamber and having at least one bend within said chamber, said exhaust pipe exiting said main chamber; and an intermediate wall positioned in the main chamber to channel the exhaust gases past the first region of the main chamber and toward the second region of the main chamber; an intermediate pipe in fluid communication with the second region of the main chamber and arranged to receive the exhaust gases from the main chamber, the intermediate pipe extending through the main chamber.