초록

A wall element for a combustion space, the wall element comprising a ceramic body, a support within the body, and attachment means extending from the support and protruding from the body for securing the ceramic body to a combustion space wall.

대표청구항 ▼

1. A gas turbine combustor wall element for attaching to an outer wall of a gas turbine combustor, the wall element comprising: a ceramic body for defining part of an inner wall of the gas turbine combustor; anda support contained by the ceramic body, said support having one or more serpentine ligam

1. A gas turbine combustor wall element for attaching to an outer wall of a gas turbine combustor, the wall element comprising: a ceramic body for defining part of an inner wall of the gas turbine combustor; anda support contained by the ceramic body, said support having one or more serpentine ligaments extending from a location within the ceramic body, and having an attachment element joined to the serpentine ligaments and extending from the location in a direction perpendicular to the serpentine ligaments and protruding outward from the ceramic body for securing the ceramic body to the outer wall. 2. A gas turbine combustor wall element as claimed in claim 1, the wall element comprising: a further location on at least one of the serpentine ligaments and a further attachment element extending from the further location in a direction perpendicular to the serpentine ligament and protruding from the ceramic body for securing the ceramic body to the outer wall. 3. A gas turbine combustor wall element as claimed in claim 1, wherein the support is metallic. 4. A gas turbine combustor wall element as claimed in claim 3, wherein the support is a nickel based alloy. 5. A gas turbine combustor wall element as claimed in claim 1, wherein the support has a plurality of serpentine ligaments radiating from the join location. 6. A gas turbine combustor wall element as claimed in claim 1, wherein the ceramic body comprises alumina. 7. A gas turbine combustor wall element as claimed in claim 6, wherein the alumina is formed by firing alumina fibres in an alumina slurry. 8. A gas turbine combustor wall element as claimed in claim 1, wherein the attachment element comprises a threaded fastener. 9. A gas turbine combustor wall element as claimed in claim 8, wherein the threaded fastener is a threaded shank. 10. A combustor for a gas turbine, said combustor comprising a wall element as claimed in claim 1, said wall element secured by its attachment element to a combustion space wall. 11. A combustor for a gas turbine engine as claimed in claim 10, wherein the attachment element extends through the combustion space wall and is secured thereto by a fastener. 12. A combustor for a gas turbine engine as claimed in claim 10, wherein an air gap is provided between the ceramic body and the combustion space wall. 13. A turbine engine comprising: a turbine;a compressor connected via a shaft to the turbine;a main fuel supply line for supplying fuel; anda combustor positioned for receiving the fuel and for releasing hot expanding gases to the turbine, said combustor including a gas turbine combustor wall element for attaching to an outer wall of a gas turbine combustor, the wall element comprising: a ceramic body for defining part of an inner wall of the gas turbine combustor; anda support contained by the ceramic body, said support having one or more serpentine ligaments extending from a location within the ceramic body, and having an attachment element joined to the serpentine ligaments and extending from the location in a direction perpendicular to the serpentine ligaments and protruding outward from the ceramic body for securing the ceramic body to the outer wall.