Development of Exhaust Manifold Muffler

930625

03/01/1993

Event
International Congress & Exposition
Authors Abstract
Content
The muffler layout in the exhaust system has been optimized for the attenuation of exhaust noise which has not been studied much to this date. As a result, “Exhaust Manifold Muffler” has been developed. This unit is capable of efficiently muffling the primary and secondary componemts of the engine explosion stroke noise. Such task is achieved without deterioration of engine performance by allocating the volume at the junction of the exhaust manifold branch pipes.
Acoustic characteristics of “Exhaust Manifold Muffler” have been analyzed by FEM and experimental methods, which have shown that not only does the volume placed at the junction of the exhaust manifold branch pipes work as a conventional muffler, but also prevents the exhaust manifold branch pipes from amplifying exhaust noise. This is the reason why “Exhaust Manifold Muffler” can muffle more efficiently than the conventional muffler.
Meta TagsDetails
DOI
https://doi.org/10.4271/930625
Pages
12
Citation
Hosomi, M., Ogawao, S., Imagawa, T., and Hokazono, Y., "Development of Exhaust Manifold Muffler," SAE Technical Paper 930625, 1993, https://doi.org/10.4271/930625.
Additional Details
Publisher
Published
Mar 1, 1993
Product Code
930625
Content Type
Technical Paper
Language
English