Muffler for internal combustion engine

Acoustics – Sound-modifying means – Muffler – fluid conducting type

Patent

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Details

181282, 181206, F01N 108

Patent

active

041657985

ABSTRACT:
A muffler comprises a plurality of stackable stages 1, 2 and 3. Each stage is comprised of a phase opposition circuit. In each phase opposition circuit exhaust gases are divided into two paths towards an outlet where they are recombined. The difference in length between the two paths equals half a wavelength of a selected frequency.

REFERENCES:
patent: 3704763 (1972-12-01), Becker et al.
patent: 3948349 (1976-04-01), Bychinsky

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