System and method for acoustic dampers with multiple volumes in a combustion chamber front panel

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United States of America Patent

PATENT NO 11506382
APP PUB NO 20210080106A1
SERIAL NO

16569090

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Abstract

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An acoustic damper for a rotary machine includes at least one wall, at least one inlet, at least one outlet, at least one separating wall, and at least one neck. The wall extends from the back side of a combustor front panel and defines a damping chamber. The inlet is defined within the wall and is oriented to channel a flow of air into the damping chamber. The outlet is defined within the back side of the front panel. The separating wall is oriented to separate the damping chamber into a first volume and a second volume. The first volume of the damping chamber is configured to damp an acoustic pressure oscillation at a first frequency. The second volume of the damping chamber is configured to damp the acoustic pressure oscillation at a second frequency. The neck extends through the separating wall and is axially offset from the outlet.

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Patent Owner(s)

Patent OwnerAddress
GE INFRASTRUCTURE TECHNOLOGY LLC300 GARLINGTON RD GREENVILLE SC 29615

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hakim, Doisneau Layal Aargau, CH 2 5
Palys, Dariusz Oliwiusz Aargau, CH 11 40

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