DUAL STAGE MULTI-FUEL NOZZLE INCLUDING A FLOW-SEPARATING WALL WITH A SLIP-FIT JOINT BACKGROUND

摘要

A multi-fuel nozzle for a combustion turbine engine and method regarding such a multi-fuel nozzle are provided. The nozzle includes a support flange (12). A first fuel-injecting stage (14) defines a first conduit extending along a longitudinal axis of the nozzle. A second fuel-injecting stage (16) defines a second conduit coaxially disposed about the first fuel-injecting stage. The first and second fuel-injecting stages mutually share a flow-separating wall (18) between one another. A slip-fit joint (20) to mechanically couple the flow-separating wall to the support flange. The slip-fit joint is configured to accommodate thermally-induced axial movement of the flow-separating wall in the varying thermal environment of the combustion turbine engine