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2 346 171

(13)

(51)

IPC

F02C7/24(2006-01-01)

(21) (22)

Application

2007133853/06, 2007-09-10

(24)

Start date

2007-09-10

(22)

Actual filing date

2007-09-10

(45)

Published

2009-02-10

(72)

Inventor

Rubtsov Sergej MikhajlovichKirjakov Leonid DmitrievichLimonov Sergej ViktorovichAndreev Vladimir SergeevichKamenskikh Valerij Petrovich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Institut Kompozitsionnykh Materialov"

TURBO-FAN NOISE QUIETING DEVICE Russian patent published in 2009 - IPC F02C7/24

Abstract RU 2346171 C1

FIELD: engines and pumps.

SUBSTANCE: invention relates to aircraft engineering, namely to noise quieting devices. The proposed device incorporates a casing, a perforated passage wall and rectangular tubular composite-fibrous fillers attached thereto. The previously mentioned tubular fillers fibrous material layers are crossed and arranged in the lateral walls at the angle of 60 to 80 degrees to the said perforated passage wall. The crossed layers of fibrous material are arranged overlapped.

EFFECT: higher reliability of noise quieting device resulted from increased bearing capacity of tubular filler side walls.

2 cl, 2 dwg

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RU 2 346 171 C1

Authors

Rubtsov Sergej Mikhajlovich

Kirjakov Leonid Dmitrievich

Limonov Sergej Viktorovich

Andreev Vladimir Sergeevich

Kamenskikh Valerij Petrovich

Dates

2009-02-10—Published

2007-09-10—Filed