METHOD AND APPARATUS FOR DECREASING COMBUSTOR ACOUSTICS

摘要

A fuel delivery apparatus for a dry low emission (DLE) combustor (16) for a gas turbine engine (10) is provided. The apparatus includes a plurality of combustor domes (36) circumferentially arranged and coupled to the combustor inlet and a premixer (40) coupled to a respective one of each of the plurality of domes. Each premixer includes a chamfered trailing edge (136) configured to suppress coupling of a vortex shedding with acoustic vibrations in the combustor.