Fuel injector nozzle support.

摘要

A fuel injector nozzle support includes a support plate joinable to a combustor dome and a ferrule slidably joined to the support plate. The ferrule includes a base, and a bore for slidably receiving a fuel injector nozzle. The ferrule base has a noncircular perimeter and the support plate includes a receptacle for receiving the ferrule base which has an inner circumference being complementary to the ferrule base perimeter for preventing rotation of the ferrule base greater than a predetermined maximum rotation while allowing radial translation of the ferrule base for accommodating differential radial thermal movement of the fuel injector nozzle and the support plate. In an exemplary embodiment, the base perimeter and the receptacle have complementary straight and arcuate profiles, and the support plate is formed with counterrotational swirler vanes of a swirler fixedly supported to a combustor dome. The noncircular perimeter assembly eliminates the use of conventional antirotational lugs and stops. <IMAGE>