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US 12,560,326 B2Granted
Main mixer in an axial staged combustor for a gas turbine engine
AssigneeRtx Corporation
InventorsZhongtao Dai, Lance L. Smith, Jeffrey M. Cohen
Life of this patent
Estimating the term…
Abstract
A main mixer including a swirler along an axis, the swirler including an outer swirler with a multiple of outer vanes, and a center swirler with a multiple of center vanes and a swirler hub along the axis, the swirler hub including a fuel manifold and an inner swirler with a multiple of inner vanes that support a centerbody, the multiple of inner vanes interconnect the fuel manifold and the centerbody.
Claims15
A main mixer, comprising:
- a swirler along an axis;
- and
- a swirler hub along the axis, the swirler hub having a fuel manifold and a centerbody, the centerbody forms an inner surface of a contoured annular mixer passage, and an inner surface of the swirler forms an outer surface of the contoured annular mixer passage, wherein an outer surface of the centerbody of the swirler hub forms an elliptical shape and an inner diameter of the swirler forms an elliptical shape, and wherein an inner surface of the swirler includes an aperture on a windward side thereof.
A main mixer, comprising:
- a swirler along an axis;
- and
- a swirler hub including a fuel manifold and an inner swirler with a multiple of inner vanes that support a centerbody, the multiple of inner vanes interconnect the fuel manifold and the centerbody, the centerbody offset from the axis, wherein an outer surface of the centerbody of the swirler hub forms an elliptical shape and an inner diameter of the swirler forms an elliptical shape, and wherein an inner surface of the swirler includes an aperture on a windward side thereof.
A main mixer, comprising:
- a swirler including an outer swirler with a multiple of outer vanes, and a center swirler with a multiple of center vanes;
- and
- a swirler hub including a fuel manifold and an inner swirler with a multiple of inner vanes that support a centerbody, the multiple of inner vanes interconnect the fuel manifold and the centerbody, an outer surface of the centerbody and an inner diameter of the swirler forms a non-circular annular mixer passage, wherein an outer surface of the centerbody of the swirler hub forms an elliptical shape and an inner diameter of the swirler forms an elliptical shape, and wherein an inner surface of the swirler includes an aperture on a windward side thereof.
Dependencies are inferred from the claim text.