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(19)

(11)

2 245 492

(13)

(51)

IPC

(21) (22)

Application

2003107443/06, 2003-03-19

(24)

Start date

2003-03-19

(22)

Actual filing date

2003-03-19

(45)

Published

2005-01-27

(72)

Inventor

Bychkov N.G.Pershin A.V.Skibin V.A.

(73)

Holder

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

COMBUSTION CHAMBER Russian patent published in 2005 - IPC

Abstract RU 2245492 C2

FIELD: gas-turbine engines and units.

SUBSTANCE: proposed combustion chamber has sectionalized flame tube. Each section is formed by lap-joined annular shells. One side of each shell has smooth surface and other one is corrugated. Smooth part of preceding shell is joined to corrugation peaks of next shell thereby forming cooling air passages whose length-to-width ratio is greater than 1.6 and greater than cross-sectional area of corrugations.

EFFECT: reduced temperature gradients in wall thereby reducing thermal stresses and enhancing service life of combustion chamber.

5 cl, 7 dwg

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RU 2 245 492 C2

Authors

Bychkov N.G.

Pershin A.V.

Skibin V.A.

Dates

2005-01-27—Published

2003-03-19—Filed