Patent ID: 9052112
Filing Date: 2015-06-09
Classification: F23D,F23R

Abstract:
1. A combustor, comprising: a. an end cap, wherein the end cap includes a first surface and a second surface downstream from the first surface; b. a shroud that circumferentially surrounds at least a portion of the first and second surfaces; c. a plate that extends radially within the shroud, the plate defining a plurality of plate passages that extend axially therethrough; d. a plurality of tubes that extend through the plate and the first and second surfaces, wherein each tube having an inlet and an outer and extend through a corresponding plate passage of the plurality of plate passage; e. a radial gap defined between one or more of the plurality of tubes and the plate at a corresponding plate passage; and f. a first purge port that extends through a wall one or more of the plurality of tubes, wherein the first purge port is radially aligned with the plate facing the corresponding plate passage.