초록 ▼

A fuel assembly having a lower end fitting and actuating means interacting therewith for holding the assembly down on the core support stand against the upward flow of coolant. Locking means for interacting with projections on the support stand are carried by the lower end fitting and are actuated b

A fuel assembly having a lower end fitting and actuating means interacting therewith for holding the assembly down on the core support stand against the upward flow of coolant. Locking means for interacting with projections on the support stand are carried by the lower end fitting and are actuated by the movement of an actuating rod operated from above the top of the assembly. In one embodiment of the invention the downward movement of the actuating rod forces a latched spring to move outward into locking engagement with a shoulder on the support stand projections. In another embodiment, the actuating rod is rotated to effect the locking between the end fitting and the projection.

대표청구항 ▼

A nuclear fuel assembly to be located below a core upper alignment plate and on a core support stand, the stand having projections thereon forming mating surfaces, comprising: a lower end fitting having an upper portion with an opening therethrough and a lower portion facing the support stand and in

A nuclear fuel assembly to be located below a core upper alignment plate and on a core support stand, the stand having projections thereon forming mating surfaces, comprising: a lower end fitting having an upper portion with an opening therethrough and a lower portion facing the support stand and including post means for placement adjacent to the projections; actuating means extending from the upper end of the assembly through the opening in the lower end fitting, and being movable relative thereto; and locking means carried by the lower end fitting adjacent to the post means and having a latch adapted to mate with the mating surface on the projections, the locking means being actuated by the movement of the actuating means, whereby the assembly may be selectively locked to the core support stand.