Nuclear fuel rod support grid with attachable spring and dimple

Details Nuclear fuel rod support grid with attachable spring and dimple Nuclear fuel rod support grid with attachable spring and dimple

1988-04-26

1989-12-05

Wasil, Daniel

Induced nuclear reactions: processes, systems, and elements

Grids

376441, G21C 334

Patent

active

048851272

ABSTRACT:
A nuclear fuel rod support grid has a plurality of straps being interleaved with one another to form a matrix of hollow cells. Each cell receives one fuel rod and is defined by intersecting pairs of opposing wall portions of the straps which are shared with adjacent cells. A plurality of fuel rod engaging and clamping springs and dimples are associated with the wall portions of the straps and protrude into the cells so as to clamp a fuel rod therebetween. A pair of spacers separate from the grid straps but detachably mounted to the wall portions thereof defining each cell are installed in each cell along the strap walls portions defining each cell and at a pair of diagonal opposite corners of the cell. Each spacer has a right angle configuration in cross section for fitting into the respective one cell corner. One spacer supports the springs and the other spacer supports the dimples.

REFERENCES:
patent: 3431171 (1969-03-01), Glandin
patent: 3769159 (1973-10-01), Zinn et al.
patent: 3944467 (1976-03-01), Biermann et al.
patent: 4297170 (1981-10-01), Leclercq
patent: 4364902 (1982-12-01), Feutrel
patent: 4411862 (1983-10-01), Leclercq et al.
patent: 4492844 (1985-01-01), Kobuck et al.
patent: 4578240 (1986-03-01), Cadwell
patent: 4666663 (1987-05-01), Steinke

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