Spacer for retaining fuel rods in a nuclear reactor fuel assembly
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United States of America Patent
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-
Feb 8, 1994
Grant Date -
N/A
app pub date -
Oct 6, 1992
filing date -
Oct 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spacer for a nuclear reactor fuel assembly includes a cell-formed lattice-work for retaining parallel, elongated elements such as fuel rods (4) into a bundle of substantially square cross section. The cells are formed from tubular, preferably round sleeves (1). Each one of these offers a passage for one of the elements for mutually fixing these elements. Each spacer is formed from two sub-spacers (5) somewhat spaced-apart from each other in the longitudinal direction of the bundle. A first sub-spacer in a pair fixes elements lying substantially on one side of a diagonal through the bundle, and a second sub-spacer fixes the other elements such that elements passing through the sleeves (1) of the first sub-spacer pass, possibly with some exception, at the side of the sleeves in the second sub-spacer and vice versa.
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