Patent ID: 9664392
Date: 2017-05-30
CPC Classifications: F02C,F23R

Claim:
1. A bundled tube fuel injector, comprising: an outer band circumferentially surrounding a fuel plenum defined within the bundled tube fuel injector, the outer band having an aft end portion; a plurality of pre-mix tubes that extend through the fuel plenum substantially parallel to one another, wherein a first segment of the plurality of pre-mix tubes are circumferentially surrounded by the outer band; and an outer shroud that extends circumferentially around a second segment of the pre-mix tubes, the outer shroud having a forward portion and an aft portion; an aft plate extends radially and circumferentially across the aft portion of the outer shroud, wherein the aft plate is rigidly connected to the aft portion of the outer shroud and the plurality of pre-mix tubes extends through the aft plate via a corresponding plurality of tube tip passages defined by the aft plate; wherein a portion of the outer band extends axially across a portion of the outer shroud with respect an axial centerline of the bundled tube fuel injector; wherein the aft end portion of the outer band is coupled to the forward portion of the outer shroud via a plurality of fasteners that extend radially through the outer band and the outer shroud with respect to the axial centerline of the bundled tube fuel injector.