METHOD FOR LIMITING MAINTENANCE EFFORTS ON A NUCLEAR-REACTOR FUEL ASSEMBLY AND FUEL ASSEMBLY

METHOD FOR LIMITING MAINTENANCE EFFORTS ON A NUCLEAR-REACTOR FUEL ASSEMBLY AND FUEL ASSEMBLY

An elastic rubbing engaging bushing (15) of a centering pin of the fuel assembly is fixed in each of the through- openings (18) of at least one of the end-pieces (7) of the fuel assembly (1). The elastic bushing (15) comprises an annular body having a fixing part (15a) in the opening (18) of the end...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: GENTET GUY, BEATI ANGELO, CHAMBRIN JEAN LUC
Format: Patent
Sprache:eng
Schlagworte:
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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Beschreibung
Zusammenfassung:An elastic rubbing engaging bushing (15) of a centering pin of the fuel assembly is fixed in each of the through- openings (18) of at least one of the end-pieces (7) of the fuel assembly (1). The elastic bushing (15) comprises an annular body having a fixing part (15a) in the opening (18) of the end-piece (7) and elastic branches (16) which are separated by slots (17). The flexible branches (16) of the elastic bushing (15) of the elastic bushing (15) comprise, in each free end part, a bearing surface (19) which protrudes radially in an inner direction of the bushing, whereby the diameter thereof is less than the diameter of a centering pin of the fuel assembly.