Apparatus to decrease combustor acoustics

A method for operating a gas turbine engine includes coupling an anti-resonant frequency system (100) to a combustor (16) including a premixer assembly and a plurality of damper tubes (38), and adjusting the anti-resonant frequency system until the anti-resonant frequency of the damper tubes is appr...

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Bibliographic Details
Main Authors HSIAO, GEORGE CHIACHUN, HELD, TIMOTHY JAMES
Format Patent
LanguageEnglish
French
German
Published 23.03.2005
Edition7
Subjects
AIR INTAKES FOR JET-PROPULSION PLANTS
BLASTING
CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES
COMBUSTION APPARATUS
COMBUSTION ENGINES
COMBUSTION PROCESSES
CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR
DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS
GAS-TURBINE PLANTS
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS
WEAPONS
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Summary:A method for operating a gas turbine engine includes coupling an anti-resonant frequency system (100) to a combustor (16) including a premixer assembly and a plurality of damper tubes (38), and adjusting the anti-resonant frequency system until the anti-resonant frequency of the damper tubes is approximately equal to the combustor resonant frequency.
Bibliography:Application Number: EP20040255646