SU270397A1 - DEVICE FOR REDUCING THE NOISE OF A JET MOTOR WITH A CENTRAL BODY IN THE AREA OF A NOZZLE - Google Patents

DEVICE FOR REDUCING THE NOISE OF A JET MOTOR WITH A CENTRAL BODY IN THE AREA OF A NOZZLE

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Publication number
SU270397A1
SU270397A1 SU1309646A SU1309646A SU270397A1 SU 270397 A1 SU270397 A1 SU 270397A1 SU 1309646 A SU1309646 A SU 1309646A SU 1309646 A SU1309646 A SU 1309646A SU 270397 A1 SU270397 A1 SU 270397A1
Authority
SU
USSR - Soviet Union
Prior art keywords
nozzle
central body
noise
reducing
area
Prior art date
Application number
SU1309646A
Other languages
Russian (ru)
Inventor
О. В. Яковлевский П. А. Колесов Ф. Я. Шебакпольскнй Л. И. Соркин
В. Ф. Бондарев М. Н. Толстошеее
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1309646A priority Critical patent/SU270397A1/en
Application granted granted Critical
Publication of SU270397A1 publication Critical patent/SU270397A1/en

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  • Jet Pumps And Other Pumps (AREA)

Description

Изобретение относитс  к области авиационной техники, в частности к устройствам дл  уменьшени  шума выхлонной струп реактивного двигател  с центральным телом в области сопла.The invention relates to the field of aeronautical engineering, in particular, to devices for reducing the noise of a jet engine eschar with a central body in the area of the nozzle.

Известные устройства аналогичного назначени , состо щие из трубопроводов дл  нодачи сжатого газа, коллектора и «асадков, расположенных между кожухом мотогондолы и соплом трубы, недостаточно эффективны.The known devices of similar purpose, consisting of pipelines for the supply of compressed gas, a collector and an aspirator located between the nacelle casing and the pipe nozzle, are not sufficiently effective.

Цель изобретени -повышение эффективности шумоноглош,ени .The purpose of the invention is to increase the effectiveness of noise suppressors.

Дл  этого насадки устройства смонтированы в центральном теле, а их оси образуют тупые углы с осью реактивного двигател .For this nozzle, the devices are mounted in the central body, and their axes form obtuse angles with the axis of the jet engine.

На фиг. 1 изображено устройство, -обилий вид; на фиг. 2 - насадок.FIG. 1 shows a device, an abnormal view; in fig. 2 - nozzles.

Устройство состоит из подвод ш,его трубопровода 1, расположенного вне наружного корпуса 2 сопла и проход щего через стойки 3 к неподвижным трубам 4, которые св заны с подвижным трубопроводом 5, газового коллектора 6, а также насадков 7, отверсти  которых расположены на наружной поверхности централыного тела 8.The device consists of an inlet W, its pipeline 1, located outside the outer casing 2 of the nozzle and passing through the posts 3 to the fixed pipes 4, which are connected to the moving pipe 5, the gas collector 6, and also the nozzles 7, whose openings are located on the outer surface central body 8.

Насадки (см. фиг. 2) состо т из корпуса 9, соединенного с коллектором, и вкладыша 10, выполненного с косым срезом //, расположенным на поверхности центрального тела.The nozzles (see FIG. 2) consist of a body 9 connected to a collector and an insert 10, made with an oblique cut // located on the surface of the central body.

При работе двигател  сжатый воздух, отбираемый от компрессора при открытом дроссельном устройстве, через трубопроводы /, 5 и трубы 4 поступает в коллектор, а из него через насадки - в реактивную струю двигател , создава  в ней дополнительные возмущени , благодар  которым спектр звукового излучени  смещаетс  в область более высоких частот .When the engine is operating, the compressed air drawn from the compressor with the throttle device open, through the pipelines 5, 5 and pipe 4 enters the manifold, and from there through nozzles - into the jet stream of the engine, creating additional disturbances in it, due to which the spectrum of sound radiation shifts into higher frequency range.

Предмет изобретени Subject invention

Устройство дл  уменьшени  шума реактивного двигател  с центральным телом в области сопла, состо щее из трубопровода, соедин ющего источник сжатого газа с коллектором , и иасадков, расположенных в плоскости, перпендикул рной оси двигател , отличающеес  тем, что, с целью повыщени  эффективности шумопоглощени , насадки устройства установлены в центральном теле, и осп их образуют Tjmbie углы с осью двигател .A device for reducing the noise of a jet engine with a central body in the area of the nozzle, consisting of a pipeline connecting a source of compressed gas to a collector, and nozzles located in a plane perpendicular to the axis of the engine, characterized in that, in order to increase the efficiency of sound absorption, the nozzle The devices are installed in the central body, and their smallpox form Tjmbie angles with the axis of the engine.

7 3 27 3 2

5 -V5 -V

SU1309646A 1969-02-24 1969-02-24 DEVICE FOR REDUCING THE NOISE OF A JET MOTOR WITH A CENTRAL BODY IN THE AREA OF A NOZZLE SU270397A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1309646A SU270397A1 (en) 1969-02-24 1969-02-24 DEVICE FOR REDUCING THE NOISE OF A JET MOTOR WITH A CENTRAL BODY IN THE AREA OF A NOZZLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1309646A SU270397A1 (en) 1969-02-24 1969-02-24 DEVICE FOR REDUCING THE NOISE OF A JET MOTOR WITH A CENTRAL BODY IN THE AREA OF A NOZZLE

Publications (1)

Publication Number Publication Date
SU270397A1 true SU270397A1 (en) 1973-07-11

Family

ID=20444864

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1309646A SU270397A1 (en) 1969-02-24 1969-02-24 DEVICE FOR REDUCING THE NOISE OF A JET MOTOR WITH A CENTRAL BODY IN THE AREA OF A NOZZLE

Country Status (1)

Country Link
SU (1) SU270397A1 (en)

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