| CPC F23R 3/286 (2013.01) [F23R 3/12 (2013.01); F23D 2900/14021 (2013.01)] | 18 Claims |
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1. A nozzle for a combustor that burns fuel, comprising:
a central nozzle,
one or more outer nozzles arranged radially around the central nozzle, comprising:
a housing coupled to one or more of an adjacent housing or the central nozzle,
a plurality of mixing tubes through which air and fuel can flow;
wherein each mixing tube in the plurality of mixing tubes comprises:
a first opening formed at a longitudinal end thereof for introduction of a first fluid into the mixing tube;
one or more intermediate openings formed on an outer circumferential surface of the mixing tube for introduction of a second fluid into the mixing tube; and
a plurality of fluid vortex generators disposed on an inner circumferential surface of the mixing tube between the longitudinal end and the one or more intermediate openings;
wherein the plurality of fluid vortex generators is disposed as a pair of fluid vortex generators, and wherein a first vortex generator of the pair of fluid vortex generators is positioned at a first distance from the first opening formed at the longitudinal end of the mixing tube and a second vortex generator of the pair of fluid vortex generators is positioned at a second distance from the first opening formed at the longitudinal end of the mixing tube, the second distance being greater than the first distance.
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