Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1989-07-28
1990-12-25
Behrend, Harvey E.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376313, 376440, 376442, G21C 334, G21C 1900
Patent
active
049801210
ABSTRACT:
A nuclear fuel assembly having an array of longitudinally extending fuel rods and axially spaced transverse grids with cells receiving the fuel rods therethrough employs anti-fretting protective devices for protecting lower end portions of tubular claddings of the fuel rods from damage-inducing contact with debris entrained in upward flow of coolant through the fuel assembly. Each device is in the form of a hollow sleeve disposed about and extending coextensive with the lower end portion of one fuel rod cladding. The sleeve has an upper portion which extends through one grid cell between lower and upper ends thereof, and a lower portion which extends below the grid cell from the lower end thereof to a bottom end of the fuel rod cladding spaced below the grid cell lower end.
REFERENCES:
patent: Re30065 (1979-08-01), Anthony et al.
patent: 2879216 (1959-03-01), Horwitz et al.
patent: 3791466 (1974-02-01), Patterson et al.
patent: 3920516 (1975-11-01), Kmonk et al.
patent: 3954560 (1976-05-01), Delafosse et al.
patent: 4056441 (1977-11-01), Marmonier et al.
patent: 4147591 (1979-04-01), Miki
patent: 4172761 (1979-10-01), Raven et al.
patent: 4239597 (1980-12-01), Christiansen
patent: 4372817 (1983-02-01), Armijo et al.
patent: 4391771 (1983-07-01), Anthony
patent: 4420458 (1983-12-01), Dunlap et al.
patent: 4445942 (1984-05-01), Cheng et al.
patent: 4541984 (1985-09-01), Palmer
patent: 4606109 (1986-08-01), Weiss
patent: 4664881 (1987-05-01), Ferrari et al.
patent: 4675154 (1987-06-01), Nelson et al.
patent: 4692303 (1987-09-01), Osborne
patent: 4717534 (1988-01-01), Morita
patent: 4718949 (1988-04-01), Takase et al.
patent: 4728488 (1988-03-01), Gilett et al.
patent: 4751044 (1988-06-01), Hwang et al.
patent: 4769210 (1988-09-01), Campbell
patent: 4792428 (1988-12-01), Canat et al.
patent: 4849161 (1989-07-01), Brown et al.
Ferrari Harry M.
Mauterer Warren L.
Roberts Elwyn
Stanutz Robert N.
Behrend Harvey E.
Westinghouse Electric Corp.
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