Device for reducing airborne and structure-borne sound

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United States of America Patent

PATENT NO 11727911
APP PUB NO 20210207508A1
SERIAL NO

17143217

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Abstract

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A device for reducing airborne and structure-borne sound has a flow channel with a flow channel wall (22, 22′, 22″) and at least one resonator chamber (40, 40′, 40″) adjacent the flow channel wall (22, 22′, 22″). The flow channel wall is formed by a sound absorber (30, 30′, 30″) at least in a part bordering the resonator chamber (40, 40′, 40″). The sound absorber (30, 30′, 30″) is covered towards the resonator chamber (40, 40′, 40″) by an acoustically reflecting inner wall (42, 42′, 42″) of the resonator chamber with at least one wall aperture (44, 44′, 44″). Openings (32, 32′, 32″) completely covers the wall aperture (44, 44′, 44″) of the inner wall (42, 42′, 42″) of the resonator chamber such that sound waves flowing through the flow channel must pass the sound absorber (30, 30′, 30″) to enter the resonator chamber (40, 40′, 40″).

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Patent Owner(s)

Patent OwnerAddress
UMFOTEC GMBHSPECKWEG 2 NORTHEIM 37154

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Krebs, Ingo Goslar, DE 1 1
Linke, Berend Noerten-Hardenberg, DE 6 13

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