Nuclear fuel assembly

Details Nuclear fuel assembly Nuclear fuel assembly

1976-12-22

1978-10-10

Engle, Samuel W.

176 76, G21C 330

Patent

active

041194900

ABSTRACT:
A fuel assembly for a light-water or heavy-water reactor or for a fast reactor comprises a bundle of clad fuel pins disposed on a uniform lattice and maintained in parallel relation by means of separate spacer grids fitted with resilient members for applying the grids against the fuel pins. A rigid support structure is formed by two parallel end-plates braced by tie-rods having the same diameter as the fuel pins and disposed at uniform intervals at the lattice nodes. The fuel-pin bundle is associated with a single support grid rigidly fixed at the mid-point of the tie-rods, the other grids being uniformly spaced in the vertical direction on each side so that elongation of the fuel pins takes place upwards and downwards from the support grid.

REFERENCES:
patent: 3791466 (1974-02-01), Patterson
patent: 3920516 (1975-11-01), Kmonk
patent: 3954560 (1976-05-01), Delafosse
patent: 3997394 (1976-12-01), Aisch

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