Fuel element rod for a water-cooled nuclear reactor

Details Fuel element rod for a water-cooled nuclear reactor Fuel element rod for a water-cooled nuclear reactor

1989-11-09

1990-09-18

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Encased with nonfuel component

376418, G21C 300

Patent

active

049576968

ABSTRACT:
Fuel element rod for a pressurized water-cooled nuclear reactor having a cylindrical can (2) made from an alloy which is transparent to neutrons and closed at each of its ends by a plug (3, 4), namely an upper plug (3) and a lower plug (4) and having a first portion in which are stacked fuel material pellets (6), which is optionally inserted between two insulating pellets (7, 8), and a second portion or expansion chamber (5) containing a compressed spring (9) bearing at one end on the upper plug (3) and at the other end on the stack of fuel pellets (6) which it maintains in position, characterized in that the spring is made from hafnium.

REFERENCES:
patent: 3899392 (1975-08-01), Grossman
patent: 4609524 (1986-09-01), Ferrari
patent: 4722827 (1988-02-01), Kwon

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