Focused tube fuel nozzle assembly with liquid fuel function

摘要

A bundled tube fuel nozzle assembly 100 includes a fuel injector 146 and a tube 124 bundle 122 comprising a plurality of tubes 124 that provide for fluid communication through a forward plate 108, a fuel plenum 114 and an aft plate 106 of the bundled tube fuel nozzle assembly 100. Each tube 124 includes an inlet 120 defined at an upstream end 128 of the tube 124 and an outlet defined at a downstream end 134 of the tube 124. The fuel injector 146 is disposed upstream from the inlets 120 of each of the tubes 124. The upstream end 128 of each tube 124 is noncircular and includes at least one side portion 140 that abuts a complementary upstream end 128 side portion 140 of an immediately adjacent tube 124 of the plurality of tubes 124. The downstream end 134 of each tube 124 may be circular and is spaced apart from the downstream ends 134 of immediately adjacent tubes 124 of the plurality of tubes 124.