Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1986-04-01
1988-05-31
Fuller, Benjamin R.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181220, 181222, 181296, B64F 126
Patent
active
047474670
ABSTRACT:
A compact turbine engine exhaust gas noise suppressor has a housing having a first chamber, a second chamber having an outlet and communicating with the first chamber through a transfer passage, and a third chamber communicating with the first chamber through a perforated dividing wall and having a resonant sound attenuator positioned therein. A sound absorbing member is positioned in the second chamber to create therein a serpentine flow path extending between the transfer passage and the outlet. The exhaust gas noise is attenuated by flowing the exhaust gas into the first chamber through a duct into which ambient cooling air is educted, and then forcing the exhaust gas outwardly through the serpentine flow path.
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Lyon Craig A.
Ross David F.
Sheoran Yogendra
Allied-Signal Inc.
Fuller Benjamin R.
Linne R. Steven
McFarland James W.
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