Piloted airblast fuel injector with modified air splitter

摘要

The fuel injection system (100) includes an air splitter (106) which is located between a pilot swirler and an inner main swirler. The air splitter divides an outer pilot air stream exiting the pilot swirler from an inner main air stream exiting an inner main swirler to create a bifurcated recirculation zone (52). The air splitter has an aft end cone (1062) angled radially outboard and axially positioned close to or downstream of a main airblast fuel injector aft end. Independent claims are also included for the following: (a) a fuel injector apparatus; and (b) a method for injecting fuel into a gas turbine.