Patent ID: 8938976
Filing Date: 2015-01-27
Classification: F23R

Abstract:
1. A structural support for a combustion cap assembly of a gas turbine engine, comprising: a generally planar frame spanning an inner diameter of an inner support ring of the combustion cap assembly at an intermediate position between an upstream end and a downstream end of the inner support ring relative to a direction of flow of a fuel and air through the combustion cap assembly; a central encirclement formed in the frame and configured for receiving a central pre-mix tube of a combustion cap assembly; and an array of outer stabilization rings formed in the frame, each stabilization ring configured to receive a respective outer pre-mix tube of the combustion cap assembly; wherein the each stabilization ring slidably supports the respective outer pre-mix tube for differential thermal expansion of the respective pre-mix tube relative to the inner support ring in the direction of flow.