Grid for nuclear fuel assembly

Details Grid for nuclear fuel assembly Grid for nuclear fuel assembly

1973-04-23

1976-01-20

Pendegrass, Verlin R.

G21c 318, G21c 334

Patent

active

039335844

ABSTRACT:
A spacer grid for nuclear fuel rods is formed of generally identical metal straps arranged in crossed relation to define a multiplicity of cells adapted to receive elongated fuel elements or the like. The side walls of each cell have openings for intercell mixing of coolant and tabs from edges of the openings defining helical coolant deflectors in the cells. Tabs from adjacent side walls are fixedly secured together to provide rigidifying flanges for the grid. Spring fingers at the ends of the cells provide for holding fuel rods against fixed stops.

REFERENCES:
patent: 3377254 (1968-04-01), Frisch
patent: 3379617 (1968-04-01), Andrews et al.
patent: 3746619 (1973-07-01), Iwao
patent: 3809609 (1974-05-01), Krawice et al.

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