Hook-shaped sideplate for a rotor disc

摘要

The engine has an annular-hook flange (70) interposed between an outer edge of a labyrinth-disk (52) and a rotor disk. The flange has a retention shoulder (72) forming an outer annular hook in which the outer edge of the labyrinth-disk is embedded. A support shoulder (74) forms an inner annular hook engaged in an axial periphery recess of the rotor disk. The hook flange has passages (78) for air flow towards a blade root (44).