CPC F23R 3/286 (2013.01) [F23R 3/14 (2013.01); F23R 2900/03041 (2013.01); F23R 2900/03042 (2013.01); F23R 2900/03044 (2013.01); Y02T 50/60 (2013.01)] | 14 Claims |
1. 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 the centerbody of the swirler hub forms a non-circular inner surface of the contoured annular mixer passage and an inner surface of the swirler forms a non-circular outer surface of the contoured annular mixer passage, and wherein an outer surface of the centerbody of the swirler hub forms a multiple of lobes of the contoured annular mixer passage and the inner surface of the swirler forms a multiple of lobes of the contoured annular mixer passage.
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