Fuel rod assembly for a nuclear reactor

Details Fuel rod assembly for a nuclear reactor Fuel rod assembly for a nuclear reactor

1984-02-27

1986-05-06

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Having particular end closure or seal

376431, 376456, G21C 310

Patent

active

045870942

ABSTRACT:
An improved end plug is provided for a nuclear fuel rod assembly. The end plug is of an integral construction having an upper shoulder portion which abuts the top edge of a fuel tube and a circular body portion adapted to be inserted into the end of the fuel tube in a force fitting relationship. A flat is provided on the lower body portion so as to define a gap between the lower body portion and the inner wall of the fuel tube upon partial insertion of the plug into the tube, the gap providing an orifice for introducing an inert-gas under pressure into the tube. Upon total insertion of the lower body portion of the plug into the tube, the gap is eliminated and metal-to-metal contact is made between the lower body portion of the plug and the end of the fuel tube for sealing the pressurized gas and a nuclear fuel within the fuel tube.

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