HYDROSTATIC END SEAL Russian patent published in 2003 - IPC

Abstract RU 2208729 C1

FIELD: mechanical engineering. SUBSTANCE: revolving and axially-movable rings are made from aluminum alloy with layer of aluminum oxide formed by method of micro-arc oxidation for reduction of oil losses in high-speed turbomachines. Sealing bands separating oil and gas chambers are provided with rings made from material whose linear expansion coefficient is below that of aluminum alloy. EFFECT: enhanced reliability of sealing. 2 cl, 2 dwg

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RU 2 208 729 C1

Authors

Tjarasov A.K.

Tjarasov S.A.

Dates

2003-07-20—Published

2001-10-31—Filed