Peripheral pin alignment system for fuel assemblies

Details Peripheral pin alignment system for fuel assemblies Peripheral pin alignment system for fuel assemblies

G - Physics

21

C

359/77

G21C 3/32 (2006.01) G21C 5/06 (2006.01) G21C 5/10 (2006.01)

Patent

CA 1097443

BE IT KNOWN THAT I, ANDREW JAMES ANTHONY of 18 West Point Terrace, Tariffville, Connecticut 06081, a citizen of the United States, have made an invention entitled: PERIPHERAL PIN ALIGNMENT SYSTEM FOR FUEL ASSEMBLIES ABSTRACT An alignment system is provided for nuclear fuel assem- blies in a nuclear core. The core support structure of the nu- clear reactor includes upwardly pointing alignment pins arranged in a square grid and engage peripheral depressions formed in the lateral periphery of the lower ends of each of the fuel assemblies of the core. In a preferred embodiment, the depressions are lo- cated at the corners of the fuel assemblies so that each depression includes one-quarter of a cylindrical void. Accordingly, each fuel assembly is positioned and aligned by one-quarter of four separate alignment pins which engage the fuel assemblies at their lower exterior corners.

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