Combustor assembly with trapped vortex cavity

摘要

A combustor assembly is disclosed. The combustor assembly may include an annular trapped vortex cavity located adjacent to a downstream end of a bundle of air/fuel premixing injection tubes. The annular trapped vortex cavity may include an opening at a radially inner portion of the annular trapped vortex cavity adjacent to the head end of the bundle of premixing tubes. The annular trapped vortex cavity may also include one or more air injection holes and one or more fuel sources disposed about the annular trapped vortex cavity such that the one or more air injection holes and the one or more fuel sources are configured to drive a vortex within the annular trapped vortex cavity.

主权项

1. A combustor assembly, comprising:
an annular trapped vortex cavity located adjacent to a downstream end of a bundle of air/fuel premixing injection tubes; the annular trapped vortex cavity comprising an opening at a radially inner portion adjacent to a head end of the bundle of premixing tubes; one or more air injection holes disposed about the annular trapped vortex cavity; one or more fuel sources disposed about the annular trapped vortex cavity, wherein the one or more fuel sources comprise:
at least one air/fuel premixing injection tube disposed on an annular aft wall of the annular trapped vortex cavity; andat least one air/fuel premixing injection tube disposed on a forward wall of the annular trapped vortex cavity; and wherein the one or more air injection holes and the one or more fuel sources are configured to drive a vortex within the annular trapped vortex cavity.