Muffler

Details Muffler Muffler

1979-02-21

1982-11-23

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181269, 181272, F01N 108

Patent

active

043600760

ABSTRACT:
A muffler of the expansion type comprises an inlet pipe and an outlet pipe connected with each other through a main body. Minimization of pressure pulsation is achieved by a variety of means including appropriately-located apertures in those portions of the walls of said pipes within said main body, an apertured partition within said main body so located that exhaust gas passes through said partition, and appropriate tapering of said pipes. A foamed, heat-resistant material may be positioned over said apertures in said walls of said pipes. Pipe constructions suitable for mass production and pipe-to-main body constructions free of the danger of separation during prolonged use are shown.

REFERENCES:
patent: 3003578 (1961-10-01), Ewashuk
patent: 3166382 (1965-01-01), Purse et al.
patent: 4122914 (1978-10-01), Suyama
patent: 4192401 (1980-03-01), Beaver et al.

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