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2 513 466

(13)

(51)

IPC

F02C7/28(2006-01-01)

F01D11/02(2006-01-01)

(21) (22)

Application

2013100956/06, 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

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

Abstract RU 2513466 C1

FIELD: machine building.

SUBSTANCE: turbine labyrinth seal comprises labyrinth abutting on turbine disc and mating flange with nozzle cooling air swirler. Said labyrinth is fitted on disc axial ring ledge to cover nozzle swirler to make slotted cavity between labyrinth and slotted cavity disc hub side surface. Seal ring is fitted in said cavity. Expanding damper ring is fitted on labyrinth inner surface to embrace labyrinth circular radial rib. Radial bores are made at ring cylindrical ledge.

EFFECT: higher efficiency and reliability.

1 dwg

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RU 2 513 466 C1

Authors

Sychev Vladimir Konstantinovich

Jazev Vladimir Mikhajlovich

Kuznetsov Valerij Alekseevich

Dates

2014-04-20—Published

2013-01-09—Filed