Patent ID: 7987678

Claim:
A hot gas duct comprising: a duct wall of a combustor of a gas turbine engine; at least one mounting fixed in the duct wall and projecting through the duct wall, the at least one mounting having a slot therein; a substantially planar duct splitter extending across the hot gas duct and held within the duct wall in at least three locations spaced around a peripheral edge of the duct splitter, at least one of the locations including an edge portion of the duct splitter being held in the slot of the at least one mounting, wherein mutually contacting surfaces of the slot and the duct splitter comprise hard face coatings and the mounting has cooling holes that penetrate the mounting such that in use coolant can flow from a source of coolant through the mountings and into the interior of the hot gas duct to cool the mountings and the hard face coatings.