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2 513 061

(13)

(51)

IPC

F01D11/02(2006-01-01)

F02C7/28(2006-01-01)

(21) (22)

Application

2013100774/06, 2013-01-09

(24)

Start date

2013-01-09

(22)

Actual filing date

2013-01-09

(45)

Published

2014-04-20

(72)

Inventor

Sychev Vladimir KonstantinovichJazev Vladimir MikhajlovichKuznetsov Valerij Alekseevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

TURBO MACHINE LABYRINTH SEAL Russian patent published in 2014 - IPC F01D11/02 F02C7/28

Abstract RU 2513061 C1

FIELD: machine building.

SUBSTANCE: labyrinth seal comprises cellular flange mounted at the stator and labyrinth with damping ring in circular groove at rim edge. Rim edge is directed to turbine disc. Axial position of said cellular flange can be adjusted by adjusting ring arranged between said flange and said stator. Disc deflector hub is arranged between labyrinth and disc to make slotted cavity between hub side surface and circular radial rib nearby said disc to constrict circular groove. Ratio between damping ring diameter, in cross-section, and slotted cavity height makes 6…12.

EFFECT: higher reliability.

2 dwg

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RU 2 513 061 C1

Authors

Sychev Vladimir Konstantinovich

Jazev Vladimir Mikhajlovich

Kuznetsov Valerij Alekseevich

Dates

2014-04-20—Published

2013-01-09—Filed