Sound suppressor liners

Details Sound suppressor liners Sound suppressor liners

G - Physics

10

K

181/15, 172/19

G10K 11/02 (2006.01) G10K 11/172 (2006.01)

Patent

CA 1079201

SOUND SUPPRESSOR LINERS Abstract of the Disclosure This invention relates to acoustic liners having a plurality of cavities defining Helmholtz resonators in which the adjacent cavities are asymmetrical causing a pressure imbalance across the coupling means (tube, slot or aperture) between these cavities in the frequency range of interest. Such liners are particularly useful in turbofan engine noise reduction applications where low frequencies are encountered. -1-

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