Shroud segment and assembly with surface recessed seal bridging adjacent members
AssigneeGeneral Electric Company
InventorsMary Ellen Alford, Toby George Darkins, Mark Eugene Noe
Life of this patent
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AssigneeGeneral Electric Company
InventorsMary Ellen Alford, Toby George Darkins, Mark Eugene Noe
Estimating the term…
A turbine engine shroud segment is provided with a radially outer surface including a pair of spaced apart, opposed first and second edge portion surface depressions, for example spaced circumferentially, having a seal surface shaped to receive, in a surface depression formed between assembled adjacent segments in a shroud assembly, or axially assembled adjacent segments and engine members, a radially outer fluid seal member. The depression portions of a shroud segment are joined with the radially outer surface of the shroud segment through an arcuate transition surface. Stresses generated during engine operation in the shroud material are reduced, enabling practical use of a low ductility material, for example a ceramic matrix composite. The edge portion surface depressions are provided with a first shape and the fluid seal member, disposed at the depression, is provided with a surface of a second shape matched in shape with the first shape.
A turbine engine shroud segment comprising a shroud segment body having a radially outer surface extending at least between a pair of first and second spaced apart, opposed outer surface end portions, wherein at least one of the first and second outer edge portions of the radially outer surface in the pair includes a surface depression portion including a depression portion seal surface of a first shape along the depression portion, the depression portion seal surface joined with the shroud body radially outer surface through an arcuate transition surface in which:
A turbine engine shroud assembly comprising a plurality of circumferentially disposed shroud segments, wherein:
Dependencies are inferred from the claim text.