Nuclear fuel assembly with coolant conducting tube
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United States of America Patent
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-
Dec 13, 1983
Grant Date -
N/A
app pub date -
Apr 29, 1981
filing date -
Apr 29, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a nuclear fuel assembly having a coolant conducting or water tube which also retains the spacers in axial position, the fuel rods experience greater axial growth with exposure than the water tube creating a risk that the water tube might become disengaged from the supporting tie plates. An arrangement for preventing such disengagement is described including lengthened end plug shanks for the water tube, a protective boss surrounding the lower end plug shank to protect it from flow induced vibration, a conical seat for the lower end plug and an arrangement for limiting upward movement of the water tube.
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