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2 449 145

(13)

(51)

IPC

F02C7/12(2006-01-01)

(21) (22)

Application

2010151390/06, 2010-12-14

(24)

Start date

2010-12-14

(22)

Actual filing date

2010-12-14

(45)

Published

2012-04-27

(72)

Inventor

Sychev Vladimir KonstantinovichJazev Vladimir MikhajlovichKuznetsov Valerij Alekseevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

HIGH-TEMPERATURE TURBINE ROTOR Russian patent published in 2012 - IPC F02C7/12

Abstract RU 2449145 C1

FIELD: machine building.

SUBSTANCE: high-temperature turbine rotor consists of turbine disc connected to shaft by means of flange connection. Shaft consists of radial flanges of disc and shaft, which are connected by means of threaded connection, as well as annular elastic connecting strap between disc hub and disc flange. Connecting strap is conical and is directed from hub to axis of rotor. In disc flange on the side of shaft flange there made are C-slots attaching air cavities on inner and outer sides from connecting strap. Ratio of diameter of inner surface of connecting strap at its connection point to disc hub to diameter of outer surface of connecting strap at its connection point to disc flange is 0.9…1.5.

EFFECT: invention allows improving high-temperature turbine rotor reliability by decreasing the stresses in flange connection of disc to turbine shaft.

2 dwg

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RU 2 449 145 C1

Authors

Sychev Vladimir Konstantinovich

Jazev Vladimir Mikhajlovich

Kuznetsov Valerij Alekseevich

Dates

2012-04-27—Published

2010-12-14—Filed