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US 7,805,945 B2Granted
Thermal shield, especially for lining the wall of a combustion chamber
AssigneeSiemens Aktiengesellschaft
InventorsHolger Grote, Wolfgang Kollenberg, Marc Tertilt
Life of this patent
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Abstract
A highly durable, high-strength thermal shield element is provided for the interior lining of the combustion chamber of a gas turbine. For this purpose, the thermal shield element comprises a base produced from a solidified cast ceramic material into which a plurality of reinforcing elements are integrated, to increase the tensile strength of the thermal shield element.
Claims12
A heat shield element, comprising:
- a basic body formed from a strengthened ceramic material, said basic body including a first side that exposed to a combustion gas and a second side positioned opposite to the first side;
- and
- a pair of reinforcing contained within the basic body that increases the tensile strength of the heat shield element;
- said pair of reinforcing elements including a first and second reinforcing element taking a plate-shape form;
- wherein a surface of the respective first and second reinforcing element is respectively arranged in a parallel alignment with and at a distance from a surface of the respective first and second side of the basic body.
2 more elements
A combustion chamber, comprising:
- an annular combustion chamber wall having an inner surface;
- a plurality of combustors arranged circumferentially through the combustion chamber wall;
- and
- a plurality of heat shield elements arranged on the inner surface to form an inner lining comprising a body formed from a ceramic material, said body including a first side and a second side positioned opposite to the first side;
- and a pair of reinforcing elements contained within the body that has a greater tensile strength that the tensile strength of the heat shield element, said pair of reinforcement elements including a first and second reinforcement element taking a plate-shaped form, wherein a surface of the respective first and second reinforcement element is respectively arranged in a parallel alignment with and at a distance from a surface of the respective first and second side of the body.
2 more elements
An axial flow gas turbine engine arranged about a central axis, comprising:
- a rotor rotationally mounted about the central axis of the engine;
- an intake housing that intakes air;
- a compressor section that compresses the intake air;
- and
- an annular combustion chamber that accepts the compressed air, introduces a fuel and combusts the fuel and compressed air to provide a hot working fluid wherein the combustion chamber comprises:
- an annular combustion chamber wall having an inner surface,
- a plurality of combustors arranged circumferentially through the combustion chamber wall, and
- a plurality of heat shield elements arranged on the inner surface to form an inner lining comprising a body formed from a ceramic material, said body including a first side and a second side positioned opposite to the first side;
- and a pair of reinforcing elements contained within the body that has a greater tensile strength than the tensile strength of the heat shield element, said pair of reinforcing elements including a first and second reinforcing element taking a plate-shape form;
- wherein a surface of the respective first and second reinforcing element is respectively arranged in a parallel arrangement with and at a distance from a surface of the respective first and second side of the body.
7 more elements
Dependencies are inferred from the claim text.