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2 250 378

(13)

(51)

IPC

(21) (22)

Application

2003127343/06, 2003-09-10

(24)

Start date

2003-09-10

(22)

Actual filing date

2003-09-10

(45)

Published

2005-04-20

(72)

Inventor

Bychkov N.G.Pershin A.V.Lepeshkin A.R.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Institut Aviatsionnogo Motorostroenija Im. P.I. Baranova"

TURBINE BLADE Russian patent published in 2005 - IPC

Abstract RU 2250378 C1

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed turbine blade of gas-turbine engine includes airfoil portion and lock portion. Surface of blades airfoil portion pointed to hot gas is coated with heat and light reflecting coating material with emissivity not exceeding 0.2. Coating is applied to surface of airfoil portion in zone where temperature exceeds 950°C.

EFFECT: increased thermocyclic service life of blade by preventing thermal stresses.

2 cl, 3 dwg

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RU 2 250 378 C1

Authors

Bychkov N.G.

Pershin A.V.

Lepeshkin A.R.

Dates

2005-04-20—Published

2003-09-10—Filed