Patent ID: 9644843
Date: 2017-05-09
CPC Classifications: F23R

Claim:
1. A combustor heat shield for a gas turbine engine, comprising: a heat shield panel adapted to be mounted in spaced-apart relationship to an inner surface of a combustor shell to define an air gap therebetween, a plurality of studs projecting from a back face of the heat shield panel, at least one of the studs being a slotted stud having a threaded portion at a distal end and a channel defined in a peripheral surface thereof, the channel extending along a radially outer edge with respect to a longitudinal axis of the slotted stud through threads of the threaded portion from an inlet end at the stud distal end connectable to a source of cooling air outside of the combustor shell to an outlet end disposed so as to communicate with the air gap when the heat shield panel is mounted to the combustor shell, wherein the outlet end of the channel is disposed between the heat shield panel and the combustor shell such that the cooling air is directed from the outlet end of the channel into the air gap.