Patent ID: 7549512
Filing Date: 2009-06-23
Classification: F01N

Abstract:
1. A muffler for exhaust gases from an internal combustion engine comprising: a housing having an inlet, an outlet, an upper plate, a lower plate and sidewalls wherein the upper plate and the lower plate are hexagonal in shape, the sidewalls are mounted between the upper plate and lower plate, the inlet is coupled to a first side of the housing and the outlet is coupled to a side of the housing opposite the first side; and a primary vein mounted in the housing that has two leading surfaces that form an angle that extends outward towards the outlet and have a plurality of holes, tapered surfaces that are coupled to the leading surfaces that extend inward towards the outlet and flared surfaces that are coupled to the tapered surfaces and extend outward towards the outlet; wherein some of the exhaust gases flowing through the muffler are diverted between the sidewalls and the primary vein and some of the exhaust gases pass through the perforations in the leading surfaces and between the two tapered surfaces and the two flared surfaces.