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2 027 160

(13)

(51)

IPC

(21) (22)

Application

4784248/06, 1990-01-16

(22)

Actual filing date

1990-01-16

(45)

Published

1995-01-20

(72)

Inventor

Vinogradov Ju.V.Mangushev N.I.Rys'Ev V.I.Ichankin G.S.Tochilkin V.I.Panin V.K.Grigor'Ev L.M.

(73)

Holder

Vinogradov Jurij Vasil'EvichMangushev Nail' IbragimovichRys'Ev Vladimir IvanovichIchankin Gerol'D SemenovichTochilkin Valerij IvanovichPanin Valerij KonstantinovichGrigor'Ev Leonid Mikhajlovich

CAPPED CHAMBER FOR ACOUSTIC MEASUREMENTS OF NOISES OF CONSTRUCTION ELEMENTS OF AVIATION ENGINES Russian patent published in 1995 - IPC

Abstract RU 2027160 C1

FIELD: measurement technology. SUBSTANCE: two branch pipe of exhaust unit provided with discharge controls are mounted onto opposite walls of case of the chamber. Intakes of discharge controls are connected with air gap. Sound-absorbing covering is made of elastic porous material. EFFECT: improved reliability. 1 dwg

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RU 2 027 160 C1

Authors

Vinogradov Ju.V.

Mangushev N.I.

Rys'Ev V.I.

Ichankin G.S.

Tochilkin V.I.

Panin V.K.

Grigor'Ev L.M.

Dates

1995-01-20—Published

1990-01-16—Filed