Patent ID: 6341664
Filing Date: 2002-01-29
Classification: F01N

Abstract:
A muffler comprising:an outer shell having an inlet end and an exhaust end; an pair of stampings forming an assembly including at least three tubes extending between baffles, said assembly received in said outer shell and therewith forming a first chamber between said inlet end and a baffle, a second chamber between said outlet end and a baffle, and a central chamber between said baffles; an inlet tube extending through said inlet end and communicating with one of said assembly tubes; an outlet tube extending through said outlet end and communicating with another one of said assembly tubes; a plurality of openings between at least one said assembly tubes and said central chamber; wherein said stampings are provided with impressions for thereby forming weep holes between said central chamber and said first and second chambers whereby condensate may travel between said central chamber and said first or second chambers; and, wherein said impressions are located on a perimeter area of said stampings whereby said weepholes are formed between said stampings perimeter areas and said outer shell.