Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1991-04-03
1992-08-18
Hunt, Brooks H.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376438, 376462, 376439, G21C 334
Patent
active
051397366
ABSTRACT:
A strip (16) for an eggcrate-type nuclear fuel assembly grid (10), in which the fuel rod support springs (30,36) are formed by beams (75,77) and a connecting arch (78). More particularly, the strip has a substantially flat body (56), upper and lower edges (84,86) defining the strip vertical height, and opposed side edges (80) defining the length of the body. The fuel rod support structure (30) projects transversely from the body and comprises a plurality of spring members spaced apart in the longitudinal direction along the body, each spring member having a pedestal portion (75,77) resiliently supported by the body and a contact portion (78) integrally formed on and projecting from the pedestal portion. The pedestal portion preferably includes a beam integrally constrained at both ends by the body. By integrally fixing the ends, the spring member can be considerably smaller and produce the same force for a given deflection as a conventional grid.
REFERENCES:
patent: 3664924 (1972-05-01), Krawiec
patent: 3715275 (1973-02-01), Krawiec
patent: 4028180 (1977-06-01), Finch
patent: 4740350 (1988-04-01), Taleyarkhan
patent: 4803043 (1989-02-01), Demario et al.
patent: 4879090 (1989-11-01), Perrotti et al.
Chelliah Meena
Combustion Engineering Inc.
Hunt Brooks H.
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