Patent ID: 7484591

Claim:
A muffler outlet part for a muffler to be used in exhaust systems of motorcycles, having a. at least one main body ( 25 ; 25 a ; 25 b ; 25 c ) disposed transversely to an outflow direction ( 3 ) of exhaust gas and having a center axis ( 26 ), the main body ( 25 ; 25 a ; 25 b ; 25 c ) having i. a centrical first outlet opening ( 27 ) disposed concentrically relative to the center axis ( 26 ) for the outflow of exhaust gas from an outlet chamber ( 18 ) of the muffler ( 1 ), and ii. at least one second outlet opening ( 29 ) disposed eccentrically relative to the center axis ( 26 ) for the outflow of exhaust gas from an expansion chamber ( 20 ) of the muffler ( 1 ), said expansion chamber ( 20 ) enclosing the outlet chamber ( 18 ), b. at least one closing member ( 30 ; 30 a ; 30 b ; 30 c ) that is swivel-mounted about the center axis ( 26 ) for an at least partial closing of the at least one second outlet opening ( 29 ), wherein the closing member ( 30 ; 30 a ; 30 b ; 30 c ), to provide for a locking relative to the main body ( 25 ; 25 a ; 25 b ; 25 c ), has locking recesses ( 59 ) and an elastic locking element ( 58 ), said locking element ( 58 ) cooperating with said recesses ( 59 ) and being in the form of a ball and being disposed on a spring element ( 57 ), for snapping into one of the locking recesses ( 59 ) during the locking, and c. at least one adjustment element ( 41 , 44 , 45 ; 41 a , 44 a ; 41 b ; 41 c, 44 c ) for swiveling of the closing member ( 30 ; 30 a ; 30 b ; 30 c ) via an adjustment means ( 50 ; 50 a ; 50 b ), which cooperates in a torque-transmitting manner with the at least one adjustment element ( 41 , 44 , 45 ; 41 a ; 44 a ; 41 b ; 41 c ; 44 c ).