Exhaust gas muffler

Details Exhaust gas muffler Exhaust gas muffler

1979-08-06

1981-09-01

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181272, F01N 702, F01N 108

Patent

active

042866898

ABSTRACT:
The invention relates to a muffler, which is suitable for large-scale production and which at a maintained or reduced sound level reduces the pressure drop of the exhaust gases as compared to known mufflers. The muffler comprises an insert of sheet metal cones with their apices directed toward the outlet thereof with the cones having one or a small number of relatively large size gas flow passages. Adjacent cones of the insert are disposed at such a distance relative to one another that the apex of the rear cone, as viewed in the direction of the gas flow, lies downstream of a plane perpendicular to the direction of the axis through the abutment surface to the envelope of the front cone.

REFERENCES:
patent: 813203 (1916-02-01), Franquist
patent: 992839 (1911-05-01), Wolle et al.

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