Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1984-09-24
1987-05-19
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376442, G21C 334
Patent
active
046666630
ABSTRACT:
A nuclear reactor fuel assembly having a grid-shaped spacer for retaining fuel rods, the spacer includes four flat, sheet metal outer straps disposed on edge at right angles to the fuel rods defining corners of the spacer, inner sheet metal straps disposed within the outer sheet metal straps, the inner straps include two given inner straps each being transverse to one of two respective given outer straps at a corner of the spacer dividing the spacer into meshes for fuel rods including a corner mesh at a corner of the spacer and two other meshes laterally adjacent the corner mesh, a contact spring for a fuel rod disposed in the corner mesh, the contact spring having two end parts each being locked in a respective recess formed in one of the given inner straps locking the contact spring to one of the given outer straps, the recesses starting from an end edge of the one given inner strap parallel to the fuel rods, two extended arms in the corner mesh each being integral with a respective one of the end parts and each being parallel to one of the given outer straps, and other contact springs for retaining the fuel rod in the corner mesh, each of the other contact springs having an end part being integral with a respective one of the extended arms and disposed on a respective one of the given outer straps in the corner mesh.
REFERENCES:
patent: 3753855 (1973-08-01), Donck
patent: 3890196 (1975-06-01), Chetter
patent: 4152205 (1979-05-01), Kropfl
Greenberg Laurence A.
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
Walsh Donald P.
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