A propeller shaft assembly (20) for an aircraft engine (10) includes a shaft (22) having: an annular wall (32) extending circumferentially about a shaft axis (X) and circumscribing a hollowed interior (25H) defining a cavity (25) in a front end portion (23) of the shaft (22), the annular wall (32) having an outer surface (26) and an inner surface (33) facing radially inwardly to the cavity (25); and a front flange (27) projecting radially outwardly from the annular wall (32). The front flange (27) includes a hub side surface (28) defining an interface plane (P1) and adapted to abut with a propeller hub (18). The shaft (22) also includes a reinforcement web (40) defining an end wall (41) of the cavity (25), the reinforcement web (40) extending radially inwardly from the inner surface (33) of the annular wall (32). At least part of the reinforcement web (40) is radially aligned with the front flange (27). At least one perforation (PP) extends axially through the reinforcement web (40).
PROPELLER SHAFT WITH REINFORCED FRONT FLANGE
PROPELLERWELLE MIT VERSTÄRKTEM VORDERFLANSCH
ARBRE D'HÉLICE À BRIDE AVANT RENFORCÉE
2024-03-20
Patent
Electronic Resource
English