Ceramic tile insulation for gas turbine component
AssigneeSiemens Power Generation, Inc.
InventorSteven James Vance
Life of this patent
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Abstract
Ceramic tile (32) insulation for protecting a substrate material (34) in a high temperature environment. A plurality of ceramic tiles (78) may be used in combination with a monolithic layer of ceramic insulation (80) to protect a fillet region (76) and an airfoil section (80), respectively, of a gas turbine vane (72). Individual ceramic tiles (84) may be applied to repair a damaged area of the monolithic insulating layer. Ceramic tile insulation may be applied in two layers (56, 58) with the material properties of the two layers being different, and with the gaps (38) of the two layers being misaligned.
Claims21
An apparatus for use in a high temperature environment, the apparatus comprising:
- a substrate comprising ceramic matrix composite material;
- a monolithic layer of ceramic insulating material disposed on a first portion of the substrate;
- and
- a plurality of individual tiles of ceramic insulating material, each tile comprising a top surface for exposure to the high temperature environment and an opposed bottom surface bonded to a second portion of the substrate.
An apparatus for use in a high temperature environment comprising:
- a substrate;
- a first layer of ceramic insulating tiles bonded to a surface of the substrate, and
- a second layer of ceramic insulating tiles bonded to the first layer of ceramic insulating tiles;
- wherein tiles of at least one of the first layer and the second layer are selectively fired before being bonded to control an amount of shrinkage experienced by the tiles after they are bonded to underlying material.
A vane for a combustion turbine engine comprising:
- an airfoil section;
- a platform section;
- a fillet along a joint between the airfoil section and the platform section;
- and
- a plurality of individual tiles of ceramic insulating material bonded to the fillet.
An apparatus for use in a high temperature environment, the apparatus comprising:
- a substrate;
- a monolithic layer of ceramic insulating material disposed over a surface of the substrate;
- and
- a repaired region wherein a portion of the monolithic layer of ceramic insulating material has been removed and an individual tile of ceramic insulating material has been bonded across an entire bottom surface of the tile.
A component for use in a combustion gas stream environment, the component comprising:
- a ceramic matrix composite substrate material;
- and
- a layer of individual tiles of ceramic insulating material, each tile comprising a top surface and an opposed bottom surface individually bonded to a portion of a surface of the substrate to isolate that portion of the substrate surface from the combustion gas stream,
- wherein the individual tiles have been selectively fired prior to being bonded to the substrate to control an amount of shrinkage of the tiles after they are bonded to the substrate.
Dependencies are inferred from the claim text.