Apparatus and method for a fuel nozzle

摘要

A fuel nozzle includes a fuel plenum, an outer body surrounding the fuel plenum, and bore holes that extend longitudinally through the outer body. The fuel nozzle also includes means for fixedly attaching the fuel plenum to the outer body and passages that provide fluid communication between the fuel plenum and the bore holes. A method for manufacturing a fuel nozzle includes drilling bore holes longitudinally through an outer body and drilling passages in the outer body to the bore holes. The method further includes inserting a fuel plenum into the outer body, wherein the passages provide a fluid communication between the bore holes and the fuel plenum, and attaching the fuel plenum to the outer body.

主权项

1. A fuel nozzle, comprising:
a. an outer body, the outer body defining a plurality of bore holes extending longitudinally through the outer body, each bore hole having an inlet and an outlet, wherein the outlet provides for fluid flow though a front wall of the outer body; b. an annular plenum partially defined by the outer body and circumferentially surrounded by the plurality of bore holes, wherein the annular plenum is partially defined by an inner surface of the front wall; c. a plurality of passages providing fluid communication between the annular plenum and at least some of the plurality of bore holes; and d. a fuel cartridge extending longitudinally within and partially defining the annular plenum, the fuel cartridge having a downstream end that terminates within the annular plenum upstream from the inner surface of the front wall so as to form a gap between the inner surface of the front wall and the downstream end of the fuel cartridge, the fuel cartridge defining a fuel plenum within the annular plenum, the fuel cartridge further defining a plurality of apertures disposed upstream from the inner surface of the front wall, the plurality of apertures providing for fluid communication between the fuel plenum and the annular plenum, wherein the apertures are arranged so as to impinge a fuel from the fuel plenum onto the inner surface of the front wall, wherein the plurality of apertures are upstream from the plurality of passages.