Patent ID: 6302235
Filing Date: 2001-10-16
Classification: F01N

Abstract:
A muffler for an automotive vehicle, comprising:(a) a casing having two parallel planar spaced-apart longitudinal plates connected to one another by two parallel planar spaced-apart lateral plates, the longitudinal plates being parallel to one another, the lateral plates being parallel to one another, and the lateral plates being perpendicular to the longitudinal plates;(b) a passageway, disposed within the casing, having first and second ends, an inlet at the first end of the passageway, an outlet at the second end of the passageway, a substantially untapered first portion of the passageway connected to the inlet, a tapered second portion of the passageway connected to the outlet, and baffle means disposed between the first and second ends of the passageway; the second portion of the passageway tapering from wide to narrow in a direction away from the first end of the passageway and toward the second end of the passageway.