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2 129 670

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(51)

IPC

(21) (22)

Application

97106260/06, 1997-04-17

(22)

Actual filing date

1997-04-17

(45)

Published

1999-04-27

(72)

Inventor

Golubev G.A.Dobrynin A.N.Djuzhev G.S.Markina E.V.Smirnov V.A.Plokhov Ju.A.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Ehnergeticheskogo Mashinostroenija Im.Akad.V.P.Glushko

CONTACTLESS SEAL FOR SHAFT Russian patent published in 1999 - IPC

Abstract RU 2129670 C1

FIELD: shaft sealing technology. SUBSTANCE: contactless seal of shaft 2 has perforate chutes 5 forming row of isolated cavities 6 located in succession on surface 4 of shaft 2. Cavities differ from one another in shape and/or volume and/or angles of position relative to axis of shaft 2. Cavities 6 may be made in form of radial cylindrical recesses 8. EFFECT: enhanced efficiency of sealing. 2 cl, 4 dwg

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RU 2 129 670 C1

Authors

Golubev G.A.

Dobrynin A.N.

Djuzhev G.S.

Markina E.V.

Smirnov V.A.

Plokhov Ju.A.

Dates

1999-04-27—Published

1997-04-17—Filed