Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1981-01-21
1983-10-25
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376441, G21C 334
Patent
active
044118627
ABSTRACT:
The present invention relates to a spacer grating for fuel element in a nuclear reactor of the PWR type, said grating being constituted by intersecting plates. Over the greater part of the walls equipped with springs, double springs comprise two active parts on either side of the wall on which the double spring is placed, allowing the symmetrical action of this spring on two different pencils inside two adjacent cells. On the other walls equipped with springs, single springs comprise one active part only, disposed in one of the two cells separated by the wall on which is placed the spring of which the other part is not capable of coming into contact with a fuel pencil. The invention is particularly applicable to the manufacture of fuel assemblies in nuclear reactors of the PWR type.
REFERENCES:
patent: 3431171 (1969-03-01), Glandin
patent: 3890196 (1975-06-01), Chetter
patent: 4221636 (1980-09-01), Feutrel
Chantant Michel
Feutrel Claude
Le Pargneux Jacques
Leclercq Joseph
Lestiboudois Guy
Commissariat a l''Energie Atomique
Walsh Donald P.
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