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United States of America Patent

PATENT NO 11739844
APP PUB NO 20190203840A1
SERIAL NO

16331377

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Two conflicting functions of sealing and lubrication of sliding faces are achieved for a long time. The sliding face of a rotating-side seal ring 3 is provided with dynamic pressure generation grooves 11 configured to communicate with the circumferential edge on the inner peripheral side of the sliding face and not to communicate with the circumferential edge on the outer peripheral side. A spring 7 is provided on the back side of a stationary-side seal ring 6 for pressing the stationary-side seal ring 6 against the sliding face of the rotating-side seal ring 3. A spring holder 8 is provided between the back side of the stationary-side seal ring 6 and the spring 7.

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Patent Owner(s)

Patent OwnerAddress
EAGLE INDUSTRY CO LTDTOKYO 105-8587

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiba, Keiichi Tokyo, JP 33 543
Itadani, Masatoshi Tokyo, JP 55 988
Katori, Hikaru Tokyo, JP 17 379
Kimura, Tadahiro Tokyo, JP 24 190
Yoshino, Akira Tokyo, JP 99 1454

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