Nuclear fuel assembly

Details Nuclear fuel assembly Nuclear fuel assembly

1978-05-10

1980-12-23

Walsh, Donald P.

176 76, G21C 330

Patent

active

042408768

ABSTRACT:
The fuel assembly comprises a bundle of fuel pins spaced in parallel relation in a uniform lattice by means of support grids resiliently applied against the fuel pins and a rigid independent structure formed by two parallel end plates. Tie-rods extending between the end plates are disposed at uniform intervals at the lattice nodes. The bundle of fuel pins is supported by the first grid on a series of tubular spacer members which surround the lower ends of at least a number of tie-rods with provision for a clearance space. The tubular spacer members extend between the bottom end plate and the first grid, the tie-rods being permitted to pass freely through each grid by means of guide sleeves.

REFERENCES:
patent: 3674637 (1972-07-01), Delafosse
patent: 3791466 (1974-02-01), Patterson
patent: 3954560 (1976-05-01), Delafosse
patent: 3997394 (1976-12-01), Aisch
patent: 4119490 (1978-10-01), Delafosse

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