Induced vortex swirler

Claim 1

In a combustion chamber for a gas turbine engine having annular chamber walls and a fuel nozzle located in the central portion thereof, the improvement therein comprising a vortex swirler, said vortex swirler being positioned about and concentric with said nozzle and having an annular dome wall connected to said chamber walls, a deflector plate moveably mounted on said annular dome wall and surrounding said nozzle, a plurality of swirler vanes secured to the inner periphery of said deflector plate, inwardly directed deflector means secured to said swirler vanes thereby forming a continuous annular passage adjacent said nozzle and a plurality of apertures in said annular dome wall surrounding said deflector plate for directing air thereagainst whereby primary mixing of fuel and air take place within the region of said deflector means and film cooling of the combustion chamber and dome walls take place with air directed off said deflector plate and toward said walls, said deflector plate, swirler vanes and deflector means remaining concentric to said fuel nozzle regardless of the variation in said combustion chamber walls or mode of operation.