Fuel assembly holddown spring

Details Fuel assembly holddown spring Fuel assembly holddown spring

1990-09-13

1991-10-01

Hunt, Brooks H.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376448, 376364, 376437, G21C 332

Patent

active

050531913

ABSTRACT:
A cantilevered hold-down spring (68) for a nuclear fuel assembly (10), comprising an elongated metal bar including a substantially straight long leg portion (66) having one end adapted to be mounted (38) to a fuel assembly, an arcuate transition portion (70) at the other end of the long leg, and a straight short leg portion (76) extending from the transition portion at an acute included angle with the long leg portion, and a load transfer means (64) projecting from the straight leg intermediate the transition portion and the long leg first end. As the load on the primary loading point (80) on the transition portion increases, the load is transferred to the projection (64), thereby effectively shortening and stiffening the spring.

REFERENCES:
patent: 4671924 (1987-06-01), Gjertsen et al.
patent: 4793965 (1988-12-01), Altman et al.
patent: 4897241 (1990-01-01), Anthony
patent: 4938919 (1990-07-01), Rylatt

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