Tile and exo-skeleton tile structure
First Claim
1. A combustion liner tile for securement to an underlying generally annular combustion liner shell, the tile comprising:
- a generally part-annular tile body having an outer surface facing away from the liner shell and first and second circumferentially opposed edges, the first edge having a first radius;
an edge strip at the second edge of the tile body, the edge strip having a second radius different from the first radius, the edge strip of the tile being operative for overlapping a first edge of an adjacent tile to form a generally continuous annular surface between adjacent tiles during circumferential thermal expansion and contraction in use;
at least one external main rib fastened to, and extending circumferentially across and substantially normally away from, the outer surface of the tile body, the at least one external main rib having a projecting end region that projects beyond one of the edges of the tile body, and a socket end region that is circumferentially spaced away from the other of the edges of the tile body, the socket end region of the at least one external main rib of the tile being operative for receiving a projecting end region of an external main rib of the adjacent tile in circumferential sliding engagement to resist relative circumferential bending of the adjacent tiles about their overlapping edges; and
wherein the socket end region includes an external short rib fastened to the outer surface of the tile body, the short rib having a length shorter than the at least one main external rib and extending parallel thereto, and a top cover bridging the short rib and the at least one main external rib.
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Accused Products
Abstract
It is known to assist cooling of a combustion chamber in a gas turbine by fixing an exo-skeleton tile structure to an inner annular combustion liner shell. To improve structural integrity of the exo-skeleton tile structure, each tile is formed with at least one rib extending circumferentially across the outer surface of the tile. An end of each rib projects beyond one edge of the tile, like tiles being linked at overlapping edges by the inter-engagement of a projecting rib of one tile with the rib of an adjacent tile. The inter-engaging ends of the ribs are relatively slideable circumferentially to allow thermal expansion and contraction of the exo-skeleton structure, but sockets are provided where the ribs engage so as to resist relative bending of the adjacent tiles about their linked edges and impart rigidity to the structure.
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Citations
19 Claims
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1. A combustion liner tile for securement to an underlying generally annular combustion liner shell, the tile comprising:
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a generally part-annular tile body having an outer surface facing away from the liner shell and first and second circumferentially opposed edges, the first edge having a first radius; an edge strip at the second edge of the tile body, the edge strip having a second radius different from the first radius, the edge strip of the tile being operative for overlapping a first edge of an adjacent tile to form a generally continuous annular surface between adjacent tiles during circumferential thermal expansion and contraction in use; at least one external main rib fastened to, and extending circumferentially across and substantially normally away from, the outer surface of the tile body, the at least one external main rib having a projecting end region that projects beyond one of the edges of the tile body, and a socket end region that is circumferentially spaced away from the other of the edges of the tile body, the socket end region of the at least one external main rib of the tile being operative for receiving a projecting end region of an external main rib of the adjacent tile in circumferential sliding engagement to resist relative circumferential bending of the adjacent tiles about their overlapping edges; and wherein the socket end region includes an external short rib fastened to the outer surface of the tile body, the short rib having a length shorter than the at least one main external rib and extending parallel thereto, and a top cover bridging the short rib and the at least one main external rib. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A generally annular exo-skeleton tile structure for securement to an underlying annular combustion liner shell to facilitate cooling of the liner shell by axial gas flow along a gap therebetween, comprising:
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a plurality of circumferentially adjacent part-annular tiles linked together edgewise, each tile including a generally part-annular tile body having an outer surface facing away from the liner shell and first and second circumferentially opposed edges, the first edge of a respective tile having a first radius, an edge strip at the second edge of the tile body of the respective tile and having a second radius different from the first radius, the edge strip of each tile overlapping the first edge of an adjacent tile to form a generally continuous annular surface between the adjacent tiles during circumferential thermal expansion and contraction in use; and at least one external main rib fastened to, and extending circumferentially across and substantially normally away from, the outer surface of each tile body, the at least one external main rib having a projecting end region that projects beyond one of the edges of the tile body, and a socket end region that is circumferentially spaced away from the other of the edges of the tile body, the socket end region of the at least one external main rib of each tile receiving the projecting end region of the external main rib of the adjacent tile in circumferential sliding engagement to resist relative circumferential bending of the adjacent tiles about their overlapping edges. - View Dependent Claims (19)
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Specification