Patent ID: 7179047

Claim:
A vane assembly for a gas turbine engine, the vane assembly comprising an aerodynamic main body across which gas can flow in streamlines externally of the main body, the main body defining a chamber and a plurality of cooling apertures extending through the main body, the cooling apertures being arranged in a plurality of arrays, wherein the vane assembly is arrangeable so that each array is generally parallel to the aforesaid streamlines, and the vane assembly further including a baffle arrangement provided in the chamber, the baffle arrangement having a gas deflection surface that is continuous across its entire extent and that extends across a plurality of the arrays wherein the gas deflection surface includes an edge positioned so that air passing across the gas deflection surface and exiting at different positions around said edge passes through said cooling apertures so that, in the event one or more of said cooling apertures is blocked, the air is passed through the unblocked cooling apertures.