Nuclear fuel rod support grid with attachable spring and dimple support spacers
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United States of America Patent
Stats
-
Dec 5, 1989
Grant Date -
N/A
app pub date -
Apr 26, 1988
filing date -
Apr 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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