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2 237 179

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IPC

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Application

2002123967/06, 2002-09-09

(24)

Start date

2002-09-09

(22)

Actual filing date

2002-09-09

(45)

Published

2004-09-27

(72)

Inventor

Ivanov V.V.Kuznetsov V.A.Trubnikov V.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

GAS-TURBINE ENGINE Russian patent published in 2004 - IPC

Abstract RU 2237179 C2

FIELD: aircraft industry.

SUBSTANCE: invention relates to gas-turbine engines of aircraft and ground application. Proposed gas-turbine engine is provided with labyrinth seal of rotor of turbine and nozzle assembly arranged between turbine disks. Labyrinth seal is placed in zone of changing of disc hub into disk plate. Ring slot jet is made between disk plate at labyrinth seal inlet on diameter D from side of trailing edges of rotor working blades, and axial ring projection of labyrinth. Said ring slot jet, width h, is connected at inlet with space to feed cooling air, and at outlet, with gas space at h/D= 0.0001-0.002.

EFFECT: improved economy characteristics of engine by decreasing leakage of cooling air through seals.

3 dwg

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RU 2 237 179 C2

Authors

Ivanov V.V.

Kuznetsov V.A.

Trubnikov V.A.

Dates

2004-09-27—Published

2002-09-09—Filed

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