Bundled tube fuel injector with a multi-configuration tube tip

摘要

A bundled tube fuel injector includes a fuel plenum that is defined within the bundled tube fuel injector and a plurality of pre-mix tubes that extend downstream from the fuel plenum substantially parallel to one another. Each pre-mix tube includes an end portion and a radially extending end surface. The bundled tube fuel injector further includes a tube tip that is fixedly connected to the end portion of a corresponding pre-mix tube.

主权项

1. A bundled tube fuel injector, comprising:
a fuel plenum defined within the bundled tube fuel injector, wherein the fuel plenum is defined by an upstream plate, a downstream plate axially spaced from the upstream plate and an outer band that circumferentially surrounds the upstream plate and the downstream plate; a plurality of pre-mix tubes that extend through the upstream plate, the fuel plenum, the downstream plate and extend downstream from the fuel plenum substantially parallel to one another, each pre-mix tube having an end portion and a radially extending end surface; and a tube tip fixedly connected to the end portion of a corresponding pre-mix tube, wherein a portion of the tube tip axially overlaps across a radially outer surface of the corresponding pre-mix tube.