Anti-rotation stator segments

摘要

A stator assembly for a turbofan gas turbine engine is disclosed. The stator assembly is coupled to a shroud of the engine. The stator assembly includes an endless case fixedly coupled to the engine shroud. The case includes a forward portion, an aft portion and a central portion disposed therebetween. The case extends about an axis of the engine. The forward and aft portions of the case include rails that extend towards each other and form forward and aft pockets with the central portion respectfully. The stator assembly also includes a locking stator segment. The locking stator segment includes a shroud that includes a forward hook and a pair of aft hooks with a platform disposed therebetween. The forward and aft hooks are retained in the forward and aft pockets of the case respectfully.

主权项

1. A stator assembly coupled to an engine shroud of a gas turbine engine, the stator assembly for preventing circumferential movement of stator segments, the stator assembly comprising:
an endless case fixedly coupled to the engine shroud, the case including a forward portion, an aft portion and a central portion disposed therebetween, the case extending around an axis, the forward and aft portions of the case extending towards each other and forming forward and aft pockets with the central portion respectively, a locking stator segment, the locking stator segment including a shroud connected to a vane, the shroud of the locking stator segment including a forward hook and a pair of aft hooks, the forward and aft hooks being retained in the forward and aft pockets respectively, the shroud of the locking stator segment including a slot that extends between the aft hooks and accommodates a lug, the lug including an inner block that is received in the slot, the lug further including an outwardly protruding stud being fixedly coupled to the central portion of the case.