Process of fabricating a fuel nozzle assembly

摘要

Disclosed is a process of fabricating a fuel nozzle assembly. The process includes providing a fuel nozzle end cover, positioning a fuel nozzle ring having a stepped geometry within a cavity of the fuel nozzle end cover, and securing the fuel nozzle ring to the fuel nozzle end cover by welding or brazing to form features corresponding to one or more of the fuel nozzle end cover and a fuel nozzle insert. The process further includes securing the fuel nozzle insert to the fuel nozzle cover by direct contact with the fuel nozzle ring.

主权项

1. A process of fabricating a fuel nozzle assembly, the process comprising:
providing a fuel nozzle end cover having a single central through-hole extending from a first axial end of the fuel nozzle end cover to a second axial end of the fuel nozzle end cover opposite the first axial end; positioning a fuel nozzle ring having an annular shape within the central through-hole of the fuel nozzle end cover, the fuel nozzle ring contacting an inner circumferential surface of the fuel nozzle end cover, the central through-hole and the fuel nozzle ring having a combined geometry configured to receive a single fuel nozzle insert, the combined geometry including a stepped geometry of the fuel nozzle ring; securing by welding or brazing the fuel nozzle ring to the fuel nozzle end cover to form features extending from the fuel nozzle ring into the central through-hole corresponding to a circumferential outer surface of the fuel nozzle insert; and securing the fuel nozzle insert to the fuel nozzle end cover through the fuel nozzle ring such that the fuel nozzle insert directly contacts the fuel nozzle ring.