| 摘要 |
Performance sound is produced with a muffler that includes a casing with front ( 5, 37 ), rear ( 7, 41 ) and side ( 3, 35 ) walls, first ( 9, 45 ) and second ( 11, 47 ) compartment walls each with a central passage ( 25, 28, 46, 48 ) and side circular passages ( 26, 27, 26', 27 '). The first compartment wall is spaced behind the exhaust gas inlet ( 6, 39 ). The second compartment wall is spaced in front of the rear wall. A first divider baffle ( 21, 21 ') divides one side passage in the first compartment wall into a plurality of passages, and a second divider baffle ( 23, 23 ') divides the second side passage in the first compartment wall into a plurality of passages. An elongate louvered tubular member ( 13, 13 ') between the first and second compartment walls receives exhaust gas from the first compartment and permits exhaust gas to exit into the second compartment. A third divider baffle ( 17, 17 ') divides a portion of the interior of the tubular member into four sectors so exhaust gas entering the tubular member is divided into a plurality of streams.
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