内燃機関の排気消音器に関する基礎的研究 : 第3報, 空どう部の形状および内部仕切の及ぼす影響

概要

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Generally, the attenuation effect of a muffler is influenced by its volume, and the larger the volume the less the rate of increase of the effect. From the point of the pure linear theory on the muffler, it is considered that the attenuation effect of the muffler is determined generally by the ratio of the cavity to the section area of the pipe. The values calculated by the equation have been found in good agreement with those obtained from the experiment by a speaker. But, examining by a gasoline engine, the author found that it is not always so. That is, with the same volume of cavity, the attenuation effect becomes worse as its shape is flatter. Next, the author divided the cavity into some parts, and tried experiments on the effect of the number of division and the shape of the partition plates.
一般社団法人日本機械学会の論文
1962-08-25