ROTOR DISK, CORRESPONDING ASSEMBLY AND GAS TURBINE ENGINE

摘要

A rotor disk 230 is provided. The rotor disk 230 may comprise a disk lug 334 and a trench 332. The disk lug 334 may be fixed to a distal surface of the rotor disk 230. The trench 332 may be disposed on a surface of the disk lug 334. The trench 332 may extend radially inwards from a distal surface of the disk lug 334. The trench 332 may be configured to at least partially define a flow path by which cooling air may reach a distal surface of the disk lug 334 in order to provide disk lug cooling.