Patent ID: 6257367
Filing Date: 2001-07-10
Classification: F01N

Abstract:
A muffler comprisingan outer shell defining a chamber therein,a baffle plate positioned in the chamber, anda pair of inner plates positioned in the chamber, each inner plate including first and second folds partitioning each of the inner plates into a base portion, a first baffle portion, and a second baffle portion, the base portions cooperating to define a first baffle, the first baffle portions cooperating to define a second baffle, the second baffle portions cooperating to define a third baffle, the first, second, and third baffles partitioning the chamber into subchambers, the baffle plate being spaced apart from the first baffle, the first baffle including a first edge at the first fold of the inner plates and a second edge at the second folds of the inner plates, the first baffle including at least two tubes extending from the first edge of the first baffle to the second edge of the first baffle, and the second and third baffles including tube-receiving apertures sized to receive the tubes of the first baffle.