Patent ID: 8359867
Filing Date: 2013-01-29
Classification: F23R

Abstract:
1. A combustor, comprising: a liner through which first fluid flows from a head end to an interior of a transition piece; a first sleeve disposed about respective portions of the liner, the transition piece and a fluid impenetrable coupling thereof to define a first passage having an axially elongate portion, the first sleeve being coupled to the transition piece and having apertures defined therein through which second fluid is injected into the first passage toward the head end; and a second sleeve disposed about the first sleeve to define a second passage having a second axially elongate portion and an entrance disposed axially between aft and forward edges of the first sleeve portion and into which third fluid is injected at the entrance such that the third fluid flows through the second axially elongate portion and toward the head end such that a pressure of the second fluid is substantially maintained along a length of the first passage, the second axially elongate portion of the second passage being disposed about the first axially elongate portion of the first passage, the first sleeve comprising a first sleeve portion and a frusto-conical portion defining the apertures and being coupled to an aft edge of the first sleeve portion and to the transition piece.