FIELD: machine building.
SUBSTANCE: variable-clearance seal ring comprises multiple arc serial segments, multiple contact surfaces of displacing element formed by said multiple arc segments, and displacing element interacting with one of multiple contact surfaces on one of multiple arc segments and one of multiple contact surfaces on one adjacent arc segment of multiple arc segments. Invention covers the used of described seal ring.
EFFECT: higher reliability.
7 cl, 6 dwg
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