A Study of a Dual Mode Muffler

2003-01-1647

05/05/2003

Event
SAE 2003 Noise & Vibration Conference and Exhibition
Authors Abstract
Content
Dual mode mufflers are extensively used in Japan, the construction involves a valve to control the exhaust gas flow. The exhaust gas passes through a small pipe at low engine speed, and a larger pipe at higher engine speed. This has the effect of a large noise reduction at low engine speed, and lower back pressure at high engine speed. This paper clarifies the resonator effect of the dual mode muffler that depends on the valve opening angle and rate of exhaust gas flow, and detailed relationship between the valve opening angle and noise reduction, how the exhaust gas flow is the major influence for the noise reduction of the dual mode muffler.
Meta TagsDetails
DOI
https://doi.org/10.4271/2003-01-1647
Pages
11
Citation
Liu, B., Maeno, M., Hase, S., and Wakamatsu, S., "A Study of a Dual Mode Muffler," SAE Technical Paper 2003-01-1647, 2003, https://doi.org/10.4271/2003-01-1647.
Additional Details
Publisher
Published
May 5, 2003
Product Code
2003-01-1647
Content Type
Technical Paper
Language
English