FIELD: machine building.
SUBSTANCE: invention refers to sealing systems of boundary surfaces between rotating and fixed elements of rotary machines. Rotary machine includes rotor, bearing connected to machine rotor, stator and sealing device located between machine rotor and machine stator. Sealing device includes a dry gas seal and the first and the second seals, which is located between dry gas seal and bearing. Either one or both of the first and the second seals of the design versions include brush seal, or to be more precise, brush seal containing multiple non-metallic fibres.
EFFECT: invention improves reliability of the sealing device.
13 cl, 5 dwg
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