Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1997-06-11
1998-06-30
Dang, Khanh
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181273, 181275, 181276, 181239, F01N 108
Patent
active
057737703
ABSTRACT:
An exhaust muffler includes a housing having a rectangularly shaped hollow interior without fiberglass or other packing. An inlet tube and a first outlet tube extend through one side wall of the housing, and a second outlet tube extends through an opposite side wall. The inlet tube extends to an inner end disposed at a central region of the interior in a position facing away from a forward end wall of the housing toward an opposite rearward end wall, while a baffle assembly within the interior includes perforated partitions that define two Helmholtz chambers, as well as a first passageway from the inner end of the inlet tube to the first outlet tube and a second passageway from the inner end of the inlet tube to the second outlet tube. The baffle assembly includes first and second plates disposed within the first and second passageways to split the flow of exhaust gases.
REFERENCES:
patent: 2985252 (1961-05-01), Morrish et al.
patent: 3642093 (1972-02-01), Schach
patent: 4574914 (1986-03-01), Flugger
patent: 4809812 (1989-03-01), Flugger
Dang Khanh
Hanson Loyal McKinley
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