Concentric pass-type muffler construction

Details Concentric pass-type muffler construction Concentric pass-type muffler construction

1977-05-09

1979-03-13

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181272, F01N 108

Patent

active

041437390

ABSTRACT:
An improved concentric pass-type muffler construction. The muffler includes an outer generally cylindrical casing enclosed by a pair of end heads, and an inlet tube, connected to the exhaust pipe of an engine, is mounted axially on one head, while an outlet tube is mounted on the opposite head. Located centrally within the casing is an inner body having a central closure or baffle and the inlet tube communicates with the upstream end of the inner body, while the outlet tube communicates with the downstream end of the body. The upstream end of the inner body is provided with an oval configuration and the major diameter of the upstream end is secured to the inner surface of the cylindrical casing. The downstream end of the inner body is also provided with an oval configuration, with the major diameter being displaced 90.degree. from the major diameter of the upstream end of the body, and is secured to the caasing. Exhaust gases entering the inlet tube are directed through the space between the inner body and the outer casing and then are discharged through the outlet tube to the exterior.

REFERENCES:
patent: 2788078 (1957-04-01), Reindl
patent: 3361227 (1968-01-01), Kaari
patent: 3480105 (1969-11-01), Burris

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