Device for conducting away the exhaust gases from internal combu

Details Device for conducting away the exhaust gases from internal combu Device for conducting away the exhaust gases from internal combu

1983-11-23

1988-05-24

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181243, 181255, F01N 102

Patent

active

047459883

ABSTRACT:
A device for conducting away exhaust gases from internal combustion engines comprises at least one sleeve-shaped silencer which encloses an exhaust pipe and forms an enclosed space around said exhaust pipe. The silencer is made up of at least two sleeve-shaped parts, or of a sleeve-shaped part and base part, which are joined together. The portion of the exhaust pipe in the space inside the silencer features perforations and/or sound absorbing elements. The inside of the silencer may be fitted with sound absorbers. The sleeve-shaped parts of the silencer and, if desired, the exhaust pipe and/or the sound absorbers are made of aluminum and/or an aluminum alloy.
The sleeve-shaped parts of the silencer are manufactured by impact extrusion, deep drawing or a similar method and are joined together preferably radial to their longitudinal axis. The ends these parts taper down to tube-shaped extensions which fit over the exhaust pipe.
To join the sleeve-shaped parts and the tube-shaped extensions to the exhaust pipe a region is provided on which an interlocking profile is created by electromagnetic forces.

REFERENCES:
patent: 1682316 (1928-08-01), Williams
patent: 1889795 (1932-12-01), Smith et al.
patent: 1972065 (1934-08-01), Noblitt
patent: 2241768 (1941-05-01), Deremen
patent: 3263772 (1966-08-01), Irwin et al.
patent: 3381774 (1968-05-01), Stade et al.
patent: 4213414 (1980-07-01), Sato et al.
patent: 4352408 (1982-10-01), Hardt et al.

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