G - Physics – 21 – C
Patent
G - Physics
21
C
359/77
G21C 3/32 (2006.01) G21C 3/336 (2006.01)
Patent
CA 1250966
SHORT FUEL ELEMENT ABSTRACT OF THE DISCLOSURE Fuel bundles for use in a pressure tube reactor each comprise a cylindrical assembly of fuel rods extending between a pair of end plates to which the rods are attached. The individual rods have a sheath construction of predetermined length to permit the insertion of a plurality of bundles within existing pressure tube fuel channels, previously containing a lesser number of longer bundles. The adoption of shorter rods militates against rod distortion under thermal and coolant flow forces, to obviate the former necessity of providing spacing appendage means attached to the fuel rod sheaths intermediate the bundle and plates, thereby simplifying manufacture and enhancing the metallurgical dependability of the rod sheath. There is further provided a bundle assembly comprising two or more of the improved fuel bundles secured in end-to-end relation, in predetermined angular relation about the polar axis of the bundle assembly.
497645
Canadian General Electric Company Limited
Eckersley Raymond A.
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