Nuclear reactor apparatus

Details Nuclear reactor apparatus Nuclear reactor apparatus

1976-08-09

1978-01-31

Engle, Samuel W.

176 30, 176 87, G21C 1922

Patent

active

040714020

ABSTRACT:
A lifting, rotating and sealing apparatus for nuclear reactors utilizing rotating plugs above the nuclear reactor core. This apparatus permits rotation of the plugs to provide under the plug refueling of a nuclear core. It also provides a means by which positive top core holddown can be utilized. Both of these operations are accomplished by means of the apparatus lifting the top core holddown structure off the nuclear core while stationary, and maintaining this structure in its elevated position during plug rotation. During both of these operations, the interface between the rotating member and its supporting member is sealingly maintained.

REFERENCES:
patent: 3054741 (1962-09-01), Tatlock et al.
patent: 3408101 (1968-10-01), Savary
patent: 3514115 (1970-05-01), Gallo
patent: 3533530 (1970-10-01), Gallo et al.
patent: 3635792 (1972-01-01), Barker
patent: 3715270 (1973-02-01), Jackson
patent: 3819478 (1974-06-01), Thorel et al.
patent: 3837694 (1974-09-01), Frisch et al.
patent: 3851906 (1974-12-01), Frisch et al.
Conf-741087 (10/74) Reactor Enclosure, J. W. Frisch, pp. 20-24.

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