COMBUSTOR PART, COMBUSTOR EQUIPPED WITH COMBUSTOR PART, AND GAS TURBINE EQUIPPED WITH COMBUSTOR

摘要

A combustor part of a combustor for burning a fuel to generate a combustion gas comprises: a combustion cylinder forming a passage for the combustion gas; a first acoustic device provided inside thereof with a first cavity that communicates with the passage via a first through hole formed in the combustion cylinder; a second acoustic device that is located on the radially outer side of the first acoustic device so as to cover the first acoustic device and has inside thereof a second cavity that communicates with the passage via a second through hole formed in the combustion cylinder; and a first communication passage that communicates the first cavity and a space outside the combustion cylinder without passing through the first through hole and the second cavity.