Expandable device for a nuclear fuel rod

Details Expandable device for a nuclear fuel rod Expandable device for a nuclear fuel rod

1976-09-21

1978-03-21

Nelson, Peter A.

Supports

Pipe or cable

Extending through plate

176 76, 248 68R, G21C 302

Patent

active

040802531

ABSTRACT:
A nuclear fuel rod and a device for use within the rod cladding to maintain the axial position of the fuel pellets stacked one atop another within the cladding. The device is initially of a smaller external cross-section than the fuel rod cladding internal cross-section so as to accommodate loading into the rod at preselected locations. During power operation the device responds to a rise in temperature, so as to permanently maintain its position and restrain any axial motion of the fuel pellets.

REFERENCES:
patent: 2947080 (1960-08-01), Kates et al.
patent: 3230152 (1966-01-01), Kerze, Jr.
patent: 3389057 (1968-06-01), McGregor et al.
patent: 3519537 (1970-07-01), Ferrari
patent: 3560339 (1971-02-01), McHugh
patent: 3679545 (1972-07-01), Leirvik
patent: 3801449 (1974-04-01), Cayol et al.

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