Silencing device for internal combustion engines

Details Silencing device for internal combustion engines Silencing device for internal combustion engines

1974-02-22

1976-10-26

Hix, L. T.

Acoustics

Auditorium

181 63, F01N 108

Patent

active

039878686

ABSTRACT:
A silencing device or muffler for internal combustion engines comprises a hollow body including an outer shell having an inlet port and an outlet port. At least one apertured conical element or frusto-conical cup is arranged in the shell to form at least one inner expansion chamber therein. The conical element includes a completely solid wall structure that is impermeable to exhaust gas and has at least one opening along only the bottom portion thereof to cause all of the exhaust gases to move therethrough. A further feature includes a baffle plate disposed transversely of the interior of the shell and in operative relationship to the conical elements. The plate is shaped or apertured to permit a flow of exhaust gas around or through it when the gas passes into the shell and through the opening in said conical element.

REFERENCES:
patent: 1839192 (1932-01-01), Baits
patent: 2122086 (1938-06-01), Chase
patent: 3095944 (1963-07-01), Buxton
patent: 3218063 (1940-10-01), Munler
patent: 3220506 (1965-11-01), Vernet
patent: 3473323 (1969-10-01), Briggs et al.
patent: 3498406 (1970-03-01), Heath
patent: 3589469 (1971-06-01), Hasui
patent: 3670845 (1972-06-01), Betts

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