Patent ID: 7174991

Claim:
A muffler comprising a muffler housing ( 1 , 2 ) consisting of a housing ( 1 ) and a lid ( 2 ) or cover ( 2 ) having at least one inner outlet ( 4 ) for exhaust gases cleaned by a catalytic converter element ( 13 ) mounted in the housing, said muffler has an outlet duct ( 30 , 31 ) through which exhaust gases are intended to pass, characterized in that the outlet duct ( 30 , 31 ) is arranged downstream of the inner outlet ( 4 ) and located on the outside of the lid ( 2 ) to provide an especially good cooling, said outlet duct comprises a first section ( 30 ) arranged to lead exhaust gases in a first direction (A) in parallel with the outside of the lid ( 2 ), and a second section ( 31 ) arranged to lead exhaust gases in a second, essentially opposite direction (B), and said second section ( 31 ) is located outside said first section ( 30 ), counted from the lid ( 2 ), and said first and second sections ( 30 , 31 ) have an essentially equally large cross-sectional area and will forward the exhaust gases up to a mouth ( 39 ).