SOUND SUPPRESSOR LINERS
SOUND SUPPRESSOR LINERS 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...
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| Main Authors | , |
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| Format | Patent |
| Language | English French |
| Published |
10.06.1980
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| Subjects | |
| Online Access | Get full text |
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| Abstract | SOUND SUPPRESSOR LINERS 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. |
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| AbstractList | SOUND SUPPRESSOR LINERS 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. |
| Author | DEAN, LEE W PERACCHIO, ALDO A |
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| Notes | Application Number: CA19770279983 |
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| PublicationDate | 19800610 |
| PublicationDateYYYYMMDD | 1980-06-10 |
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| PublicationDecade | 1980 |
| PublicationYear | 1980 |
| RelatedCompanies | UNITED TECHNOLOGIES CORPORATION |
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| Snippet | SOUND SUPPRESSOR LINERS This invention relates to acoustic liners having a plurality of cavities defining Helmholtz resonators in which the adjacent cavities... |
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| SubjectTerms | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BLASTING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS JET-PROPULSION PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES STEAM ENGINES WEAPONS |
| Title | SOUND SUPPRESSOR LINERS |
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