Combustion chamber tile of a gas turbine and method for its manufacture

A method for manufacturing a combustion chamber of a gas turbine comprising:

• providing a combustion chamber wall defining an interior of the combustion chamber,
• manufacturing a tile body attached to the combustion chamber wall in the interior of the combustion chamber downstream from a head of the combustion chamber, the tile body including an inner surface facing toward the interior of the combustion chamber and forming at least a portion of an interior surface of the combustion chamber wall,
• providing a plurality of effusion cooling holes in the tile body,
• providing a flow-guiding element on the tile body and projecting inwardly from the inner surface of the tile body into the interior of the combustion chamber to be positioned within a main flow through the interior of the combustion chamber along the tile body, the flow-guiding element including a mixing air hole extending through the tile body,
• manufacturing a supporting element connecting between the tile body and the flow-guiding element, the supporting element including at least a portion that extends into the interior of the combustion chamber inwardly beyond the inner surface to be positioned within the main flow only on a side of the flow guiding element facing away from a main direction of the main flow,
• manufacturing the tile body in a vertical direction,
• manufacturing the supporting element vertically below a position of the flow-guiding element,
• making the effusion cooling holes simultaneously or subsequently in at least one chosen from the combustion chamber tile and the supporting element.

A combustion chamber of a gas turbine, comprising:

• a combustion chamber wall defining an interior of the combustion chamber,
• a tile body attached to the combustion chamber wall in the interior of the combustion chamber downstream from a head of the combustion chamber, the tile body including an inner surface facing toward the interior of the combustion chamber and forming at least a portion of an interior surface of the combustion chamber wall,
• a plurality of effusion cooling holes provided in the tile body,
• a flow-guiding element provided on the tile body and projecting inwardly from the inner surface of the tile body into the interior of the combustion chamber to be positioned within a main flow through the interior of the combustion chamber along the tile body, the flow-guiding element including a mixing air hole extending through the tile body,
• a supporting element connecting between the tile body and the flow-guiding element, the supporting element including at least a portion that extends into the interior of the combustion chamber inwardly beyond the inner surface to be positioned within the main flow on a side of the flow guiding element facing away from a main direction of the main flow,
• wherein the supporting element has a maximum width in a direction transverse to the main direction of the main flow that is less than or equal to an outer diameter of the flow-guiding element positioned within the main flow.