Sealing ring
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United States of America Patent
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Dec 15, 2020
Grant Date -
Jan 12, 2017
app pub date -
Jan 23, 2015
filing date -
Jan 24, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a sealing device capable of suppressing leakage of a fluid to be sealed while reducing rotary torque regardless of rotational direction. In a sealing ring (100) slides against a side wall surface on a low pressure side of an annular groove, a dynamic pressure generating groove (120) that includes a first groove (121) having a constant width in a radial direction and extending in a circumferential direction and a second groove (122) extending from a center position of the first groove (121) in the circumferential direction to an inner circumferential surface and guiding a fluid to be sealed into the first groove (121) is provided on a sliding surface side which slides against the side wall surface. The first groove (121) is provided at a position within a sliding region in which the sealing ring slides against the side wall surface.
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