Reactor core lateral restraint assembly

Supports – Pipe or cable – Extending through plate

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Details

176 85, 248358AA, G21C 1304

Patent

active

040736857

ABSTRACT:
A spring pack for supporting a sprung mass relative to an unsprung mass includes a relatively low-rate spring unit and a relatively high-rate spring unit interconnected with each other and arranged between the sprung and unsprung masses, the relatively low-rate spring unit tending to respond to initial limited movement between the sprung and unsprung masses, a mechanical stop limiting the spring response of the relatively low-rate spring unit with relative movement beyond that limit tending to be absorbed by the relatively high-rate spring unit. A plurality of the spring packs are employed in a lateral restraint assembly for laterally supporting a reactor core relative to a vessel within a nuclear reactor, the relatively low-rate spring units absorbing initial multi-axial movement between the core and vessel with excessive movement of the core being absorbed by the relatively high-rate spring units.

REFERENCES:
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patent: 2631841 (1953-03-01), Tillou et al.
patent: 2775445 (1956-12-01), Goodloe
patent: 3624846 (1971-12-01), Rub
patent: 3784219 (1974-01-01), VAN DER Burgt et al.
patent: 3900367 (1975-08-01), Class
patent: 3964969 (1976-06-01), Brynsvold et al.

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