Fuel assembly with a flow-aiding spacer

Details Fuel assembly with a flow-aiding spacer Fuel assembly with a flow-aiding spacer

1993-03-18

1995-05-30

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376439, 376444, 376462, G21C 334

Patent

active

054209021

ABSTRACT:
A fuel assembly includes a cluster of mutually parallel fuel rods. A fuel assembly channel laterally surrounds the cluster of fuel rods and has a substantially rectangular cross section and flat channel walls. Grid-like spacers having meshes formed therein each receive a respective one of the fuel rods for guiding the fuel rods in a plurality of axial positions. At least one support spring laterally supports each respective one of the fuel rods in the mesh guiding the fuel rod. Each of the spacers have inner ribs being aligned parallel to the fuel rods and outer peripheral ribs opposite the channel walls. At least some of the inner ribs are fastened to the peripheral ribs, and the outer peripheral ribs are joined together only by the inner ribs.

REFERENCES:
patent: 3380890 (1968-04-01), Glandin et al.
patent: 3746617 (1973-07-01), Iwao et al.
patent: 4544522 (1985-10-01), Curulla et al.
patent: 4597937 (1986-07-01), Sakurai et al.
patent: 4675154 (1987-06-01), Nelson et al.
patent: 4728490 (1988-03-01), Taleyarkhan
patent: 4740350 (1988-04-01), Taleyarkhan
patent: 5035853 (1991-07-01), Lettau et al.

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