S195-1型低背压排气消声器的设计研究

An Investigation on the Design of Model S195-1 Exhaust Muffler of Low Back-Pressure

本文以内燃机排气噪声必需的消声量频率特性作为设计消声器的依据,论述了扩张室式和穿孔板复合消声器的设计.试验表明,采用这种新型复合消声器后,S195柴油机排气噪声得到了有效控制.

In this paper, by taking the frequency charactristics of sound attenuation required by the exhaust noise of internal cambustion engines as the design basis, we discuss the design of compound mufflers with expansion chamber and with perforated tube. The test results indicate that the exhaust noise of model S195 diesel can be effectivey controlled by using this new muffler.