Nuclear reactor fuel assembly spacer grid

Details Nuclear reactor fuel assembly spacer grid Nuclear reactor fuel assembly spacer grid

1977-01-07

1979-08-07

Engle, Samuel W.

176 76, G21C 330

Patent

active

041636902

ABSTRACT:
A spacer grid for a nuclear fuel assembly is comprised of a lattice of grid plates forming multiple cells that are penetrated by fuel elements. Resilient protrusions and rigid protrusions projecting into the cells from the plates bear against the fuel element to effect proper support and spacing. Pairs of intersecting grid plates, disposed in a longitudinally spaced relationship, cooperate with other plates to form a lattice wherein each cell contains adjacent panels having resilient protrusions arranged opposite adjacent panels having rigid protrusions. The peripheral band bounding the lattice is provided solely with rigid protrusions projecting into the peripheral cells.

REFERENCES:
patent: 3255090 (1966-06-01), Leirvik
patent: 3442763 (1969-05-01), Chetter
patent: 3665586 (1972-05-01), Jabsen
patent: 3813288 (1974-05-01), Leaver
patent: 3824153 (1974-07-01), Leaver
patent: 3833471 (1977-11-01), Chetter
patent: 3890196 (1975-06-01), Chetter
patent: 3933583 (1976-01-01), Jabsen

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