Patent ID: 9062609
Filing Date: 2015-06-23
Classification: F02C,F23D,F23R,Y02T

Abstract:
1. A fuel injection system comprising: a combustor liner defining primary and secondary combustion zones; an air tube extending through the combustor liner along an axis to an exit aperture inside the combustor, and comprising a fuel tube formed along an inner axial surface of the air tube which forms a boundary for air flow, the fuel tube offset from the axis of the air tube; a fuel manifold positioned proximate the combustor liner to deliver fuel through the air tube to the primary and secondary combustion zones; and a fuel injector coupled to the fuel manifold and positioned to inject the fuel from the fuel tube substantially in a direction parallel to the axis of the air tube, such that the fuel has a substantially symmetric distribution about the axis of the air tube, at the exit aperture.