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2 174 718

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IPC

(21) (22)

Application

99127796/06, 1999-12-28

(24)

Start date

1999-12-28

(22)

Actual filing date

1999-12-28

(45)

Published

2001-10-10

(72)

Inventor

Rozhkov V.V.Chapaev I.G.Batuev V.I.Katanov Ju.G.Bachurin V.D.Bychikhin N.A.Enin A.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

NUCLEAR REACTOR FUEL ASSEMBLY Russian patent published in 2001 - IPC

Abstract RU 2174718 C2

FIELD: nuclear power engineering; fuel assembly manufacture. SUBSTANCE: fuel assembly has fuel bundles installed in frame of spacer grids. The latter are mounted on tubular channels. Bottom plugs of channels are mounted in bottom grid. Fuel assembly also has bottom nozzle with supporting ribs, head, and items for fastening fuel elements in bottom grid. These items providing for fixing fuel elements in grid cells are made on walls of cells and annular strip in bottom part of lower plug in the form of bosses. Walls of each cell on lower end of bottom grid are chamfered. Chamfering these walls enlarges separation angle of annular strip. EFFECT: enhanced reliability, reduced manufacturing cost, improved safety for personnel. 2 cl, 3 dwg

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RU 2 174 718 C2

Authors

Rozhkov V.V.

Chapaev I.G.

Batuev V.I.

Katanov Ju.G.

Bachurin V.D.

Bychikhin N.A.

Enin A.A.

Dates

2001-10-10—Published

1999-12-28—Filed