The development of an integrated Perforated Manifold, Muffler, and Catalyst (PMMC) for an automotive engine exhaust system is described. The design aims to reduce tailpipe emissions and improve engine power while maintaining low sound output levels from the exhaust. The initial design, based on simplified acoustic and fluid dynamic considerations, is further refined through the use of a computational approach and bench tests. A final prototype is fabricated and evaluated using fired engine dynamometer experiments. The results confirm earlier analytical estimates for improved engine power and reductions of emissions and noise levels.
Design of an Integral Perforated Manifold, Muffler, and Catalyst
Sae Technical Papers
SAE 2001 World Congress ; 2001
2001-03-05
Conference paper
English
Perforated muffler manifold catalyst
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