Spacer grid insert

Details Spacer grid insert Spacer grid insert

G - Physics

21

C

359/76

G21C 3/32 (2006.01) G21C 3/33 (2006.01)

Patent

CA 1232089

ABSTRACT OF THE DISCLOSURE A nuclear reactor fuel assembly fitted with a plurality of spacer grids located along the length of the fuel assembly. The spacer grids are positioned in limited movable reglationship to at least one of a plurality of guide tubes. A plurality of spacer sleeves positioned concentrically about respective axial portions of a central instrument guide tube. At least one spacer grid insert positioned within a spacer grid and concentrically about an axial portion of the central instrument guide tube to prevent damage to the instrument guide tube, while permitting limited movement of the spacer grids.

459829

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