Device for wedging the upper support plate of cluster guides in

Details Device for wedging the upper support plate of cluster guides in Device for wedging the upper support plate of cluster guides in

1990-11-15

1992-05-05

Hunt, Brooks H.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Expansion means

376205, G21C 1302

Patent

active

051105365

ABSTRACT:
A device for wedging and positioning the upper support plate of the guides of control clusters in relation to a bearing surface linked to the vessel of a pressurized-water nuclear reactor, comprising an upper ring (22) and a lower ring (23) laid onto the cluster guide support plate (8) and the bearing surface (9), respectively, and between which is seated a stack of preloaded elastic washers (24). The device comprises a hollow connecting shank (26) with an axial channel (44) and passing through the two rings, to engage in a bore (20, 21) formed in the support plate or the bearing surface, the lower ring (23) being connectable to the shank, while the upper ring is mounted slidably relative to the lower ring (23) under the effect of the load exerted on the elastic washers.

REFERENCES:
patent: 4096034 (1978-06-01), Anthony
patent: 4097332 (1978-06-01), Gibbons et al.
patent: 4786461 (1988-11-01), Veronesi et al.

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