Spring devices – Vehicle – Lever and nontorsion spring
Patent
1978-06-15
1981-05-26
Behrend, Harvey E.
Spring devices
Vehicle
Lever and nontorsion spring
267178, 267169, 176 78, G21C 106, G21C 332
Patent
active
042696615
ABSTRACT:
A top nozzle for a nuclear reactor fuel assembly which includes an orifice plate designed to receive control rod guide tubes extending upwardly from the top of the fuel assembly. Nozzle pin extensions connected to the orifice plate are axially coextensive with the guide tubes and project upwardly through a top nozzle hold-down plate, and through openings in the upper core plate in the reactor. The hold-down plate is spring biased into an upper core plate engaging position and since the pin extensions are adapted to move in the core plate and against the action of the springs, the top nozzle thus becomes effective in accommodating upwardly acting hydraulic forces which tend to lift the fuel assembly, and to accommodate differential expansion of parts in the fuel assembly as compared to the core barrel in which the assembly is located. The number of pins disposed in the hold-down plate move in slots formed in each of the guide tube extensions and the uppermost position of the fuel assembly is determined when the pin is in the bottom of its slot in each of the guide tubes.
REFERENCES:
patent: 2206315 (1940-07-01), Zimmerman
patent: 2879216 (1959-03-01), Hurwitz, Jr. et al.
patent: 2952600 (1960-09-01), Newson
patent: 2982713 (1961-05-01), Sankovich et al.
patent: 3235463 (1966-02-01), Sankovich
patent: 3382153 (1968-05-01), Bigge et al.
patent: 3572621 (1971-03-01), Whitten et al.
patent: 3769158 (1973-10-01), Winders
patent: 3770583 (1973-11-01), Klumb et al.
patent: 3791466 (1974-02-01), Patterson et al.
patent: 3854308 (1974-12-01), Czech et al.
Cadwell Dennis J.
Ferlan Stephen J.
Kmonk Stanley
Behrend Harvey E.
Campbell J. R.
Dermer Z. L.
Westinghouse Electric Corp.
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