Engine muffler and spark arrester

Details Engine muffler and spark arrester Engine muffler and spark arrester

1976-10-04

1978-09-12

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181239, 181243, 181256, 181265, 181268, 181275, 55276, F01N 102, F01N 302, F01N 306

Patent

active

041130510

ABSTRACT:
A muffler and spark arrester for use on an internal combustion engine has an outer tube extending along an axis between an inlet and an outlet. A perforate inner tube is disposed coaxially within the outer tube and merges therewith adjacent the inlet and is in effect connected thereto near the outlet by a partially toroidal end wall. Sound absorbing material is lodged between the inner and outer tubes. A plurality of nested, partially toroidal cups is disposed coaxially adjacent the end wall. A resonator-arrester chamber is coaxially nested with the toroidal cups. A central tube is held by a gas barrier wall coaxially within a portion of the inner tube. The parts are held together by an axially extending through bolt.

REFERENCES:
patent: 2173549 (1939-09-01), Counda
patent: 2247130 (1941-06-01), McCurdy
patent: 2397556 (1946-04-01), Magill
patent: 3061416 (1962-10-01), Kazokas

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