Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1994-10-04
1996-05-21
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376438, 376446, 376462, 376448, G21C 334
Patent
active
055197477
ABSTRACT:
A fixturing tool includes a sleeve having a central region with a circular axial opening and four leaf springs projecting from each of the opposite ends of the central region. The central region is cruciform in cross-section with arcuate side walls between the projections of the cruciform. Unit cells are arranged on a base having openings corresponding in location to the centers of the unit cells in their final assembly in a spacer for a nuclear fuel rod bundle. Fixturing devices are freely and loosely disposed within the unit cells and pins are partially inserted through the fixturing devices to expand the leaf springs to engage the unit cells. Once the cells with fixturing devices and partially inserted pins are centered over the base openings, the pins are advanced into the openings in the base to accurately align each unit cell relative to one another to enable final welding of adjacent cells to one another.
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Johansson Eric B.
Smith David G.
Chelliah Meena
General Electric Company
Walsh Donald P.
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