Fundamental Study on Exhaust Muffler of Internal Combustion Engine : 2nd Report, Effect of the Length, Diameter and Number of the Tail Tubes
In the present paper, the author has studied on the influence of the tail tube in an exhaust muffler of cavity-type upon the attenuation characteristics. First, he has found the following results : the longer the tail tube, the more the attenuation effect of exhaust noise increases generally, but th...
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| Published in | Transactions of the Japan Society of Mechanical Engineers Vol. 26; no. 168; pp. 1174 - 1182 |
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| Main Author | |
| Format | Journal Article |
| Language | Japanese |
| Published |
The Japan Society of Mechanical Engineers
25.08.1960
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| Online Access | Get full text |
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| Summary: | In the present paper, the author has studied on the influence of the tail tube in an exhaust muffler of cavity-type upon the attenuation characteristics. First, he has found the following results : the longer the tail tube, the more the attenuation effect of exhaust noise increases generally, but this attenuation is not proportional to its length. Moreover, it has been recognized that the diameter of the tail tube brings an important influence on the exhaust noise of the engine, and its effect as an acoustic-filter is determined essentially by the sectional area of the tail tube. Finally, he has obtained better results when the tail tube is divided into small tubes. |
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| ISSN: | 0029-0270 2185-9485 |
| DOI: | 10.1299/kikai1938.26.1174 |