Exhaust silencer device for an internal combustion engine

Details Exhaust silencer device for an internal combustion engine Exhaust silencer device for an internal combustion engine

1986-03-19

1987-10-13

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181254, 181278, F01N 108

Patent

active

046992448

ABSTRACT:
The invention relates to an exhaust silencer device for an internal combustion engine, for placement in the exhaust pipe of the engine. The device according to the invention comprises a damper plate disposed in the exhaust pipe and pivotably about a shaft substantially perpendicular to the longitudinal axis of the exhaust pipe between a closed position, in which the damper plate covers the major portion of the exhaust pipe flow area, and an open position, in which it permits substantially free flow through the exhaust pipe. An operating device is arranged to actuate the damper plate to adjust its position dependent on the exhaust flow through the exhaust pipe.

REFERENCES:
patent: 2072372 (1937-03-01), Kingsley
patent: 2492784 (1949-12-01), Christman
patent: 3703937 (1972-11-01), Tenney
patent: 4161996 (1979-07-01), Dolejsi
patent: 4484659 (1984-11-01), Buchwalden

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