Patent ID: 7788926
Filing Date: 2010-09-07
Classification: F23M,F23R

Abstract:
1. A can-annular gas turbine engine comprising: a combustor defined by an exterior combustor housing; a combustion chamber defined by an exterior housing and adapted to be joined to the combustor housing at an upstream junction; and a plurality of Helmholtz-type resonators comprising respective cavities at the upstream junction, each of said resonators comprising one or more openings communicating with the combustion chamber, the overall length of each of said openings defining a respective throat length for the respective resonator; wherein the cavities are formed at least in part between an inner junction ring and an outer junction ring of the junction, wherein the inner junction ring and outer junction ring are separate from the combustor housing and the exterior housing, and wherein at least a portion of the outer junction ring axially overlaps and is radially outward of at least a portion of the inner junction ring.