Blade or vane for a gas turbine engine
First Claim
1. A hollow blade or vane for a gas turbine engine comprising a thin-walled hollow aerofoil section of generally uniform wall thickness and devoid of flank-connecting ribs adjacent the leading edge, the wall of said aerofoil section being provided with a longitudinally extending thickened portion adjacent said leading edge, the transverse dimensions of said portion being less than the thickness of said section, said thickened portion itself being hollow so that it forms an integral hollow strut in said wall to resist bending stresses in said wall adjacent said leading edge.
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Accused Products
Abstract
A hollow blade or vane for a gas turbine engine is provided with a longitudinally extending, hollow thickened portion in its wall adjacent the leading edge. This hollow thickened portion acts as an integral strut and relieves the leading edge of some loads.
39 Citations
9 Claims
- 1. A hollow blade or vane for a gas turbine engine comprising a thin-walled hollow aerofoil section of generally uniform wall thickness and devoid of flank-connecting ribs adjacent the leading edge, the wall of said aerofoil section being provided with a longitudinally extending thickened portion adjacent said leading edge, the transverse dimensions of said portion being less than the thickness of said section, said thickened portion itself being hollow so that it forms an integral hollow strut in said wall to resist bending stresses in said wall adjacent said leading edge.
Specification