Patent ID: 9121612
Filing Date: 2015-09-01
Classification: F02C,F23C,F23D,F23R

Abstract:
1. A system for reducing combustion dynamics in a combustor, comprising; a. an end cap that extends radially across at least a portion of the combustor, wherein the end cap comprises an upstream surface axially separated from a downstream surface; b. a plurality of tube bundles that extends from the upstream surface through the downstream surface of the end cap, wherein each tube bundle provides fluid communication through the end cap; c. a first divider that extends circumferentially around a first tube bundle, wherein the first divider is defined by an inner shroud and an outer shroud that extend axially within the end cap and at least partially through the downstream surface, wherein the first divider defines a first diluent passage that extends axially through the downstream surface, wherein the first diluent passage is defined between the inner shroud and the outer shroud; d. a diluent supply in fluid communication with the first divider, wherein the diluent supply provides diluent flow to the first diluent passage in the first divider; and e. a second divider that is radially outward of the first divider, wherein the second divider separates the tube bundles into a plurality of sectors, the second divider having a second diluent passage that extends axially through the downstream surface.