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2 303 299

(13)

(51)

IPC

G21C3/16(2006-01-01)

(21) (22)

Application

2005126562/06, 2005-08-22

(24)

Start date

2005-08-22

(22)

Actual filing date

2005-08-22

(45)

Published

2007-07-20

(72)

Inventor

Rozhkov Vladimir VladimirovichAgishev Vladimir VladimirovichEnin Anatolij AlekseevichPolozov Mikhail ViktorovichKislitskij Aleksandr Antonovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

NUCLEAR REACTOR FUEL ELEMENT Russian patent published in 2007 - IPC G21C3/16

Abstract RU 2303299 C2

FIELD: nuclear engineering.

SUBSTANCE: proposed nuclear-reactor fuel element has sealed zirconium alloy can, plugs, fuel pile, and gas collector accommodating fuel pile hold-down device made of iron-chromium-nickel alloy in the form of cylindrical spring incorporating hold-down and compensating turns joined by buffer turn. Ratio of fuel-pile height to length of hold-down device section formed by compensating turns is 20 to 45 with ratio of negative allowance between outer diameter of hold-down turns in loose state and inner diameter of can to can wall thickness being 1.2 to 2.

EFFECT: enhanced operating reliability and reduced manufacturing cost of fuel element.

2 cl, 1 dwg

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RU 2 303 299 C2

Authors

Rozhkov Vladimir Vladimirovich

Agishev Vladimir Vladimirovich

Enin Anatolij Alekseevich

Polozov Mikhail Viktorovich

Kislitskij Aleksandr Antonovich

Dates

2007-07-20—Published

2005-08-22—Filed