Tiered tie plates and fuel bundles using the same
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United States of America Patent
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Dec 3, 2013
Grant Date -
Jul 26, 2012
app pub date -
Dec 5, 2011
filing date -
Dec 20, 2007
priority date (Note) -
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Abstract
Example embodiments are directed to tiered tie plates and fuel bundles that use tiered tie plates. Example embodiment tie plates may include upper and lower tiered tie plates. Example embodiment tiered tie plates may have a plurality of bosses divided into groups, or tiers, having differing vertical (axial) displacement. Example embodiment fuel bundles may use tiered tie plates such that fuel rods in example bundles may originate and terminate at different vertical displacements, based upon the vertical displacement of the bosses receiving the fuel rods into the tiered tie plates. Optionally, shanks may be used to further vary fuel rod axial displacement and diameter.
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