Lower tie plate cast frame

Details Lower tie plate cast frame Lower tie plate cast frame

1992-09-23

1994-01-25

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Reactor structures

Orifice or fluid control at inlet or outlet of coolant channels

376310, 376313, G21C 104

Patent

active

052822311

ABSTRACT:
A lower tie plate for a nuclear fuel assembly is provided via an integral casting including a frame containing a first plurality of guide tube bosses in a central portion thereof, a second plurality of guide tube bosses concentric with the first plurality of guide tube bosses, and a plurality of teardrop shaped struts connecting the first and second guide tube bosses to one another and to the frame. The guide tube bosses serve to respectively directly receive individual guide tube cap screws of guide tubes of the nuclear fuel assembly. The interior top portion of the lower tie plate is configured to receive and support a debris screen.

REFERENCES:
patent: 3284315 (1966-11-01), Thome
patent: 3382153 (1968-05-01), Bigge et al.
patent: 3951739 (1976-04-01), Frick et al.
patent: 4022661 (1977-05-01), Smith et al.
patent: 4231843 (1980-11-01), Myron et al.
patent: 4655995 (1987-04-01), Freeman et al.
patent: 5030412 (1991-07-01), Yates et al.
patent: 5071617 (1991-12-01), Bryan et al.
patent: 5160697 (1992-11-01), Verdier et al.

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