In-line constricted sound-attenuating system

Details In-line constricted sound-attenuating system In-line constricted sound-attenuating system

1988-10-21

1992-06-23

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181227, 181264, 181269, F01N 700

Patent

active

051235013

ABSTRACT:
A sound attenuating device is provided for attenuating noise in an exhaust system. The attenuating device includes an inlet end, an outlet end and a constricted portion therebetween. In use, the attenuating device may be disposed in a tubular housing or may be an integral portion of a tail pipe, connecting pipe, or muffler. Further, a sound suppressing system is described including one or more attenuating regions including attenuating devices. The attenuating regions are spaced to attenuate desired frequencies. Expansion chambers formed between attenuating regions contribute to sound suppression.

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