Fuel assembly skeleton with structural and non-structural top no

Details Fuel assembly skeleton with structural and non-structural top no Fuel assembly skeleton with structural and non-structural top no

1985-11-12

1987-10-13

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376353, 376449, G21C 332

Patent

active

046997601

ABSTRACT:
A fuel assembly skeleton includes a top nozzle, a number of longitudinally-extending guide thimbles having upper ends, a number of joints interconnecting the top nozzle and the upper ends of the guide thimbles. All but a few of the joints are structural joints providing rigid connections between all but a corresponding few of the guide thimble upper ends and the top nozzle. Each of the other few joints is a non-structural joint providing a non-rigid connection between a guide thimble upper end and the top nozzle. The number of structural joints constitutes at least a substantial majority of the joints and, in any event, the number is at least three times the number of non-structural joints. Each non-structural joint is composed of a hollow sleeve rigidly connected to the top nozzle and disposed in a slip fit relationship about the guide thimble upper end. The sleeve is bulge fitted in a passageway defined in the top nozzle.

REFERENCES:
patent: 3954560 (1976-05-01), Delatosse et al.
patent: 4164443 (1979-08-01), Gibbons et al.
patent: 4515750 (1985-05-01), Pardini et al.
patent: 4522782 (1985-06-01), Leclercq
patent: 4535523 (1985-08-01), Leclercq
patent: 4557891 (1985-12-01), Gibbons et al.
patent: 4572816 (1986-02-01), Gjertsen et al.
patent: 4584168 (1986-04-01), Formanek

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