Hydraulic seismic support for nuclear fuel assembly

Details Hydraulic seismic support for nuclear fuel assembly Hydraulic seismic support for nuclear fuel assembly

1977-12-15

1980-06-17

Engle, Samuel W.

176 36S, 176 76, G21C 330, G21C 708

Patent

active

042082498

ABSTRACT:
A typical embodiment of this invention provides a hydraulic mechanism for alleviating the effect of seismic forces and other stresses that are applied to a fuel assembly in a nuclear reactor. Illustratively, hollow guide posts protrude into a fuel assembly end fitting grid from biased spring pads. Plungers that move with the spring pads plug one end of each of the respective guide posts. Plates on the end fitting grid that have individual holes for fluid discharge partially plug the other ends of the respective guide posts, thereby providing a hydraulic means for absorbing the longitudinal component of seismic shocks and other anticipated forces.

REFERENCES:
patent: 3331749 (1967-07-01), Anthony
patent: 3741868 (1973-06-01), Qurnell
patent: 3775249 (1973-11-01), Clapham
patent: 3971575 (1976-07-01), Lesham
patent: 4059483 (1977-11-01), Anthony
patent: 4076586 (1978-02-01), Bideau

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