ROTARY EXPANSION MACHINE Russian patent published in 1999 - IPC

Abstract RU 2137924 C1

FIELD: power-plant engineering. SUBSTANCE: machine uses Roots-type wheels as rotors. Each sealing unit is built up of at least three packing members forming two spaces between them; first space communicates with outlet channel and second one, with drain system through channel. Such arrangement prevents ingress of condensate to oil space and oil from this space to rotor space of machine. EFFECT: improved reliability of machine and reduced cost of its manufacture and assembly. 2 cl, 3 dwg

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RU 2 137 924 C1

Authors

Avdanin Ju.S.

Krylov V.S.

Shevkin V.V.

Shcheglov A.G.

Dates

1999-09-20—Published

1997-06-30—Filed