Patent ID: 8418469

Claim:
A fuel nozzle assembly, the fuel nozzle assembly comprising: an outer burner tube and an inner burner tube defining a pre-mixing annulus therebetween; a swirler assembly, the swirler assembly comprising a plurality of swirler vanes disposed in an annular array about the inner burner tube and configured to interact with primary air upstream of the pre-mixing annulus; an air injection feature having at least one inlet outward of the swirler assembly and at least one outlet downstream of the swirler assembly to flow secondary air into the pre-mixing annulus downstream of the swirler assembly such that the secondary air flows in a generally linear path longitudinally with respect to the pre-mixing annulus and adjacent at least one of the outer burner tube and the inner burner tube; and a sleeve associated with the one of the outer burner tube and the inner burner tube, the sleeve defining a plurality of bore holes configured to exhaust the secondary air adjacent the one of the outer burner tube and the inner burner tube.