Automobile exhaust gas muffler construction

Details Automobile exhaust gas muffler construction Automobile exhaust gas muffler construction

1977-03-17

1978-11-21

Kelly, Donald G.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181272, 181279, F01N 110

Patent

active

041262050

ABSTRACT:
An automobile exhaust gas muffler construction for flowing exhaust gases, comprises a housing having spaced apart semi-cylindrical end walls interconnected by tangential straight side walls. The housing also includes a front wall having a tubular inlet extending therethrough and through at least a portion of the housing, and a rear wall with a tubular outlet extending through the rear wall and through at least a portion of the housing. The tubular inlet and tubular outlet each have a gas flow slot passage defined along its length within the housing and gases flow from the inlet through this slot in the housing and through spiral passages defined by sound-muffling walls. The spiral passages of the inlet communicate with an expansion chamber defined in the housing which, in turn, communicates with spiral passages defined around the outlet connection.

REFERENCES:
patent: 2241010 (1941-05-01), Chipley
patent: 3371472 (1968-03-01), Krizman
patent: 3692142 (1972-09-01), Stemp

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