Patent ID: 9388988
Filing Date: 2016-07-12
CPC Classification: F23D,F23R

Claim Text:
1. A combustor cap assembly of a gas turbine engine, comprising: a primary feed plate attached across an upstream end of a support ring; a fuel/air premix tube within the support ring, the pre-mix tube comprising an upstream flange that aligns and seats the fuel/air pre-mix tube against the primary feed plate, the fuel/air premix tube further comprising an intermediate flange which is fixed on an outer surface of the fuel/air premix tube at an intermediate position along the fuel/air premix tube; and an intermediate structural frame at an intermediate location along the pre-mix tube having an opening through which the fuel/air premix tube passes, wherein the opening is sized such that the intermediate flange cannot pass through; wherein the intermediate flange contacts the intermediate structural frame and the intermediate structural frame restricts longitudinal movement of the fuel/air premix tube relative to the support ring.