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(19)

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2 732 360

(13)

(51)

IPC

F02K1/00(2006-01-01)

F02K1/06(2006-01-01)

F02K1/12(2006-01-01)

F02K1/36(2006-01-01)

F02K1/46(2006-01-01)

(21) (22)

Application

2019130538, 2019-09-27

(24)

Start date

2019-09-27

(22)

Actual filing date

2019-09-27

(45)

Published

2020-09-15

(72)

Inventor

Gorbovskoj Vladlen SergeevichKazhan Vyacheslav GennadevichKazhan Andrej VyacheslavovichShenkin Andrej Vladimirovich

(73)

Holder

Federalnoe Gosudarstvennoe Unitarnoe Predpriyatie Aerogidrodinamicheskij Institut Imeni Professora N.E. Zhukovskogo"

NOISE-SUPPRESSING NOZZLE OF AIR-JET ENGINE Russian patent published in 2020 - IPC F02K1/00 F02K1/06 F02K1/12 F02K1/36 F02K1/46

Abstract RU 2732360 C1

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to supersonic passenger airplane (SPA) nozzles with devices for noise reduction of the jet of air-jet engine. Noise-damping nozzle of air-jet engine comprises subsonic (1) and supersonic (2) parts with rectangular shape of critical section (3) of nozzle, located in supersonic part upper (7) and lower (6) rows of deflected by control signal of blinds. Nozzle supersonic part is extended along the flow by means of lower (4) and side (5) walls with increase in the cross-section area along the flow. Nozzle additionally comprises ejector (9) for supplying external air into supersonic part of nozzle through outlet holes under lower row of shutters.

EFFECT: technical result is reduction of noise level.

13 cl, 5 dwg

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RU 2 732 360 C1

Authors

Gorbovskoj Vladlen Sergeevich

Kazhan Vyacheslav Gennadevich

Kazhan Andrej Vyacheslavovich

Shenkin Andrej Vladimirovich

Dates

2020-09-15—Published

2019-09-27—Filed