Fastener
AssigneeROLLS-ROYCE plc
InventorAnthony G Razzell
Life of this patent
Estimating the term…
Abstract
A fastener (31) is disclosed for a first article, for example a tile (29), to a second article for example an outer wall (27) of a wall structure (21, 22) of a combustor (15) of a gas turbine engine (10). The fastener (31) comprises an elongate main part, which may be in the form of a bolt (34). The main part can extend through the first and second articles. The main part defines a cooling pathway (46) therethrough to allow the passage of a cooling gas through the main part.
Claims20
A wall structure for a combustion chamber of a gas turbine engine, the wall structure comprising an inner wall and an outer wall, the inner wall comprising a plurality of wall elements, each wall element comprising a main body and a ceramic fastener to fasten the main body to the outer wall of the combustion chamber, each fastener comprising an elongate main part which extends through the outer wall and the inner wall, wherein the main part of at least one of the fasteners defines a cooling pathway therethrough to allow the passage of a cooling gas through the main part of the fastener.
A wall structure for a combustion chamber of a gas turbine engine, the wall structure comprising an inner wall and an outer wall, the inner wall comprising a plurality of wall elements, each wall element comprising a main body and a fastener to fasten the main body to the outer wall of the combustion chamber, the main body of each wall element is formed from a ceramic matrix composite, each fastener comprising an elongate main part which extends through the outer wall and the inner wall, wherein the main part of at least one of the fasteners defines a cooling pathway extending lengthways therethrough to allow the passage of a cooling gas through the main part of the fastener from a region outside the outer wall to a region inside the inner wall.
Dependencies are inferred from the claim text.