Turbine engine noise suppression apparatus and methods

Details Turbine engine noise suppression apparatus and methods Turbine engine noise suppression apparatus and methods

F - Mech Eng,Light,Heat,Weapons

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F01D 25/30 (2006.01) F01N 1/02 (2006.01) F01N 1/10 (2006.01) F02C 3/32 (2006.01) F02C 7/24 (2006.01) F01N 13/00 (2010.01)

Patent

CA 1293198

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.

530431

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