Fan rotor disc for jet engine of aircraft, has axial grooves mounting and retaining vane roots, and deformable zones radially located outside grooves, where zones are placed at rear end of grooves

摘要

The disc has axial grooves (22) for mounting and retaining the vane roots, and deformable zones (34) radially located outside the grooves, where the zones are placed at a rear end of the grooves. The zones having cavities are formed in hooking flanges (36) of inter-vane platforms, and are placed at the level of the rear notches of the vane roots, where the platforms orient air flow at inlet of a turbomachine.