| 摘要 |
A silencer for exhaust gases from combustion engines comprises a perforated pipe (1) provided with an inlet (2) and an outlet (3). Arranged in the interior of the pipe (1) are intermediate walls (12,13,14) provided with through-flow openings (15,16). Extending co-axially around the pipe (1) in spaced relationship therewith is a shell, and the space located between the shell and the pipe (1) is divided into a plurality of damping chambers (7,8,9) by means of partitions (10,11). Exhaust gases partly flow axially through the pipe (1) and partly from the pipe to the damping chambers and from there back into the pipe, where they mix with the axially flowing exhaust gases.
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