Patent ID: 8567199

Claim:
A combustor comprising: a baffle plate including at least one through baffle hole; a cover ring, together with the baffle plate defining a diluent plenum therebetween; at least one fuel nozzle extending through the cover ring and the at least one through baffle hole; a plurality of injection holes extending through the at least one fuel nozzle; a shroud affixed to the baffle plate radially outboard of the at least one fuel nozzle, the shroud and the at least one fuel nozzle defining a flow channel therebetween, at least one seal radially between the shroud and the at least one fuel nozzle, wherein the at least one seal is configured to divert the flow of diluent into the plurality of injection holes; a collar comprising a plurality of airflow openings, the collar located at a downstream tip of the at least one fuel nozzle and downstream of the plurality of injection holes, wherein the plurality of injection holes are configured to meter a flow of diluent from the diluent plenum into the plurality of airflow openings.