Muffler for motor vehicles

Details Muffler for motor vehicles Muffler for motor vehicles

1975-11-20

1978-02-14

Tomsky, Stephen J.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181256, 181238, 181269, 181282, F01N 108, F01N 716, F01N 110

Patent

active

040733610

ABSTRACT:
A muffler for a motor vehicle which serves as a reactor for oxidizing or re-burning unburned constituents in engine exhaust gases. The muffler comprises a heat insulated inner shell in which a chamber is provided with a silencing unit and is kept at a high temperature sufficient to oxidize the unburned constituents, an outer shell covering the heat insulated inner shell, and means for absorbing the thermal expansion of the inner shell provided in a supporting device of the inner shell. An exhaust pipe extends into the inner shell and has one end provided with a collector. The collector has a guide opening to pass engine exhaust gases into the inner shell while achieving mixing of the exhaust gases in the collector thereby to promote oxidizing reaction of the exhaust gases.

REFERENCES:
patent: 2995199 (1961-08-01), Myers
patent: 3488723 (1970-01-01), Veazie
patent: 3581842 (1971-06-01), Hall
patent: 3677365 (1972-07-01), Wright et al.
patent: 3687224 (1972-08-01), Lundin
patent: 3901350 (1975-08-01), Loffelhardt

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