Combustion chamber for a gas turbine engine
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United States of America Patent
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Sep 29, 2020
Grant Date -
Jan 11, 2018
app pub date -
Oct 14, 2015
filing date -
Jan 23, 2015
priority date (Note) -
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Abstract
A combustion chamber for a gas turbine engine includes: an inner wall delimiting an inner volume of the combustion chamber, through which combustion gas flow from a burner to a gas turbine of the gas turbine engine, a plurality of dampening cavities for the dampening of thermo-acoustic vibrations in the combustion gas, each dampening cavity communicating with the inner volume through at least a dampening hole on the inner wall, at least a cooling passage for a cooling medium flowing outside the inner volume in thermal contact with the inner wall, each dampening cavity having at least a purging hole communicating with the cooling passage for purging a portion of the cooling medium through the dampening cavities to the inner volume.
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