Safety apparatus for a nuclear reactor

Details Safety apparatus for a nuclear reactor Safety apparatus for a nuclear reactor

1978-04-06

1980-11-11

Engle, Samuel W.

176DIG5, G21C 708

Patent

active

042331153

ABSTRACT:
Safety apparatus for a nuclear reactor comprising an absorbing element having a supporting head connected by a disconnectable linkage constituted by the armature of an electromagnet to the end of an axially movable vertical operating rod, said linkage being such that in the case of a disconnection the absorbing element slides by gravity in a passage bounded by an open container through the core of the reactor, wherein the operating rod is associated with a metal member having an expansion coefficient which is significantly higher than that of the armature of the electromagnet, whereby in the case of a temperature rise a separating force is exerted between the head of the absorbing element and the operating rod.

REFERENCES:
patent: 3546996 (1970-12-01), Grijalva
patent: 3976540 (1976-08-01), Sowa
patent: 3976543 (1976-08-01), Sowa
patent: 4019954 (1977-04-01), Giordano et al.
UAC-29384, ANL/CT-76-2 (8/75) Josephson et al. Final Report Development of Self-actuated Shutdown Systems for LMFbR Plants pp. 1-11, 181.

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