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2 127 458

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IPC

(21) (22)

Application

97111248/25, 1997-07-01

(22)

Actual filing date

1997-07-01

(45)

Published

1999-03-10

(72)

Inventor

Shmakov L.V.Beljanin L.A.Zemskov A.A.Pikos V.V.Maksimov V.A.Komov A.N.Shurov L.I.

(73)

Holder

Gosudarstvennoe Predprijatie Leningradskaja Atomnaja Ehlektrostantsija Im.V.I.Lenina

SEALING RING Russian patent published in 1999 - IPC

Abstract RU 2127458 C1

FIELD: sealing engineering; sealing cylindrical surfaces of joints such as those in fuel assemblies and process channels of pressurized-tube reactors. SUBSTANCE: sealing ring has stack of alternating metal and filler layers and additional seal in the form of flexible deforming coat applied to working surface of stack. Novelty proposed in invention is that additional sealing coat should be made of antifriction material or of silicone oligomer or silicone rubber base material, or of elastic epoxy composition base material. In addition, radial annular grooves are proposed to be made on external surface of additional sealing coat. EFFECT: increased repair intervals of reactor channels, improved sealing of reactor process channels, increased service life of seal. 5 cl, 6 dwg

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RU 2 127 458 C1

Authors

Shmakov L.V.

Beljanin L.A.

Zemskov A.A.

Pikos V.V.

Maksimov V.A.

Komov A.N.

Shurov L.I.

Dates

1999-03-10—Published

1997-07-01—Filed