Control rod velocity limiter

Induced nuclear reactions: processes – systems – and elements – Control component for a fission reactor

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Details

376234, 376242, 376353, 188317, G21C 720, F16F 900

Patent

active

046248269

ABSTRACT:
A velocity limiting device providing greater resistance to motion through a fluid in one direction than in the opposite direction. The device includes a toroidally shaped control member having a smooth generally conical surface on one side for low resistance movement through the fluid in the one direction. On its opposite side the control member is formed with at least one groove providing a concave surface spaced from which is an arrangement of vanes forming a jet for directing a stream of fluid into the groove upon movement in the opposite direction whereby the resultant increase in fluid turbulence increases resistance to rapid movement in this opposite direction.

REFERENCES:
patent: 3020887 (1962-02-01), Hobson et al.
patent: 3395781 (1968-08-01), Trocki et al.
patent: 3397759 (1968-08-01), McClintic et al.

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