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Application

99127893/03, 1999-12-29

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Start date

1999-12-29

(22)

Actual filing date

1999-12-29

(45)

Published

2002-02-10

(72)

Inventor

Burtolik B.I.Zakharikov G.M.Zakharikov B.G.Svoroba V.Ja.Sokolinskij V.B.

(73)

Holder

Burtolik Boris IvanovichZakharikov Gennadij MikhajlovichZakharikov Boris Gennad'EvichSvoroba Vladimir JakovlevichSokolinskij Vladimir Borisovich

SILENCER OF AIR DRILLS Russian patent published in 2002 - IPC

Abstract RU 2179225 C2

FIELD: percussive machines for breaking of rocks and drilling boreholes in rocks in mining and construction industries. SUBSTANCE: silencer consists of body with partitions and damping screens made of flexible material; exhaust port and diaphragm in the form of hollow cone made of porous material. Diaphragm is enclosed in casing and connected to exhaust port. In this case, diaphragm internal surface is conical and its area related to exhaust port area as (8-20)Kp, where Kp is penetration factor of diaphragm material. EFFECT: higher operating reliability of silencer with preserved high efficiency of noise suppression. 2 cl, 1 dwg

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RU 2 179 225 C2

Authors

Burtolik B.I.

Zakharikov G.M.

Zakharikov B.G.

Svoroba V.Ja.

Sokolinskij V.B.

Dates

2002-02-10—Published

1999-12-29—Filed