SYSTEM AND METHOD FOR HIGH FREQUENCY ACCOUSTIC DAMPERS WITH CAPS

An acoustic damper (100) for a rotary machine (10) includes at least one wall (104), at least one cooling air inlet (120 and 122), at least one outlet (102), and at least one cap (128 and 130). The at least one wall (104) extends from a back side (96) of a burner (24) front panel (90) such that the...

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Bibliographische Detailangaben
Hauptverfasser:	PALYS, Dariusz Oliwiusz, HAKIM DOISNEAU, Layal, BIAGIOLI, Fernando
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
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Zusammenfassung:	An acoustic damper (100) for a rotary machine (10) includes at least one wall (104), at least one cooling air inlet (120 and 122), at least one outlet (102), and at least one cap (128 and 130). The at least one wall (104) extends from a back side (96) of a burner (24) front panel (90) such that the at least one wall (104) partially defines a dampening chamber (106). The at least one cooling air inlet (120 and 122) is defined within the back side (96) of the front panel (90) and is configured to channel a flow of cooling air (124) into the dampening chamber (106). The at least one outlet (102) is defined within the back side (96) of the front panel (90) and is configured to channel the flow of cooling air (124) out of the dampening chamber (106). The at least one cap (128 and 130) is positioned at least partially over the at least one cooling air inlet (120 and 122) and is configured to reduce a velocity of the flow of cooling air (124) within the dampening chamber (106).