OUTER COVER OF CATALYTIC CONVERTER FOR PERFORMING FUNCTION REGARDLESS OF THERMAL DAMAGES OF PERIPHERAL PARTS AND REDUCING NOISE

摘要

PURPOSE: An outer cover of a catalytic converter is provided to reduce the noises discharge outside while maintaining the function of a converter by forming many slits in the secondary noise generation area as the main factor of noises. CONSTITUTION: An outer cover(10) of a catalytic converter comprises a semi-cylindrical cover body(11) and cover flange parts(13) formed on both sides of the cover body. Many noise-reduction slits(15) are formed in the area(N) of the cover body where noises are generated the most in the whole cover body to reduce the noises. The noise-reduction slits are extended toward the cover flange parts at a uniform interval.