A Study on Anechoic Chamber Using Counter-phase Counteract

DOI

10.2991/iceep-18.2018.237How to use a DOI?

Keywords

Exhaust muffler; Backpressure; Insersion loss.

Abstract

A conventional muffler of internal combustion engine is mostly constructed as a mixture or combination of perforated ducts, baffle or perforated baffle, expansion chamber, etc., and the noise reduction is limited and backpressure is high hence the fuel efficiency is low. In order to solve the problems of traditional exhaust silencers with poor characteristics of noise reduction in low-frequency range and high exhaust resistance, a new theory of exhaust silencer of diesel engine based on counter-phase counteract and split-gas rushing has been proposed. Taking the single-cylinder diesel engine CG25 as the experimental engine, the author measured the exhaust noise and its spectra. By comparing the results of the new types of mufflers to those without a muffler and those with the original muffler of the engine, the new theory of muffler has been verified.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ying-li Shao
PY  - 2018/09
DA  - 2018/09
TI  - A Study on Anechoic Chamber Using Counter-phase Counteract
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 1355
EP  - 1358
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.237
DO  - 10.2991/iceep-18.2018.237
ID  - Shao2018/09
ER  -