Retrievable fuel pin end member for a nuclear reactor

Details Retrievable fuel pin end member for a nuclear reactor Retrievable fuel pin end member for a nuclear reactor

1980-08-06

1982-08-17

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376446, 376451, G21C 332

Patent

active

043449140

ABSTRACT:
A bottom end member (17b) on a retrievable fuel pin (13b) secures the pin (13b) within a nuclear reactor (12) by engaging on a transverse attachment rail (18) with a spring clip type of action. Removal and reinstallation if facilitated as only axial movement of the fuel pin (13b) is required for either operation. A pair of resilient axially extending blades (31) are spaced apart to define a slot (24) having a seat region (34) which receives the rail (18) and having a land region (37), closer to the tips (39) of the blades (31) which is normally of less width than the rail (18). Thus an axially directed force sufficient to wedge the resilient blades (31) apart is required to emplace or release the fuel pin (13b) such force being greater than the axial forces on the fuel pins (13b) which occur during operation of the reactor (12).

REFERENCES:
patent: 3109802 (1963-11-01), Blake
patent: 3862884 (1975-01-01), Jabsen
patent: 3890197 (1975-06-01), Butts
patent: 3945885 (1976-03-01), Cocker
patent: 3951739 (1976-04-01), Frick
patent: 3996101 (1976-12-01), Marmonier
patent: 4003787 (1977-01-01), Marmonier

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