Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1989-11-28
1992-11-10
Fuller, Benjamin R.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181250, 181262, F01N 102, F01N 114
Patent
active
051626209
ABSTRACT:
An elongate exhaust gas muffler for a turbine engine includes a foraminous central exhaust duct which is circumscribed along its length by a plurality of tuned dissipative and reactive noise attenuation chambers. At an inlet end of the muffler an annular secondary flow inlet is defined about the central exhaust duct and opens to the first sound attenuation chamber. A secondary flow of pressurized bleed air is receivable into the first attentuation treatment in the muffler.
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Ross David F.
Royalty Charles M.
Allied-Signal Inc.
Fuller Benjamin R.
Holden Jerry J.
Le Nancy
Miller Terry L.
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