Muffler for exhaust gas from an internal combustion engine

Details Muffler for exhaust gas from an internal combustion engine Muffler for exhaust gas from an internal combustion engine

1985-04-08

1986-08-26

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181252, 181256, 181272, F01N 110

Patent

active

046077219

ABSTRACT:
A muffler of the absorption type for the exhaust gas of an internal combustion engine including a cylindrical porous sound-absorbing body 1, and a film 5 of the metal or other material formed cylindrically on the inner surface of the porous body 1. The film prevents clogging of the pores in the porous body and enables the absorption of the sound in a wide frequency range.

REFERENCES:
patent: 2043731 (1936-06-01), Bourne
patent: 3613830 (1971-10-01), Hubbell, III
patent: 4523662 (1985-06-01), Tanaka et al.

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