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2 204 753

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(51)

IPC

(21) (22)

Application

2000104789/06, 2000-02-28

(24)

Start date

2000-02-28

(22)

Actual filing date

2000-02-28

(45)

Published

2003-05-20

(72)

Inventor

Strelets Vladimir NikolaevichPokhil'Chuk Igor' AleksandrovichBunjak Ljubomir KonstantinovichSmal'Ko Mikhail AnatolievichZavgorodnij Petr Fedorovich

(73)

Holder

Gosudarstvennoe Aktsionernoe Obshchestvo Nefteprovody Druzhba"

END SEAL Russian patent published in 2003 - IPC

Abstract RU 2204753 C2

FIELD: sealing devices for revolving shafts of pumps, machines and equipment in chemical, oil-refining and other industries. SUBSTANCE: surfaces of friction rings are provided with circular grooves of half-round section for forming tore-shaped cavity during assembly where tore-shaped ring engageable with friction ring over surface of said cavity is mounted. As a result, area of friction pair is increased and friction rings are aligned, thus decreasing vibration, radial and angular misalignment of friction rings and consequently reducing leakage of medium. EFFECT: enhanced efficiency; reduction of leakage of medium. 2 dwg

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RU 2 204 753 C2

Authors

Strelets Vladimir Nikolaevich

Pokhil'Chuk Igor' Aleksandrovich

Bunjak Ljubomir Konstantinovich

Smal'Ko Mikhail Anatolievich

Zavgorodnij Petr Fedorovich

Dates

2003-05-20—Published

2000-02-28—Filed