The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2019
Filed:
Mar. 11, 2016
Nok Corporation, Tokyo, JP;
Norimasa Hosonuma, Fujisawa, JP;
Nozomu Suzuki, Fujisawa, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A seal ring () is attached to an annular groove () provided on an outer periphery of a shaft (), and slides on a lateral wall surface () of the annular groove () on a lower pressure side. The seal ring () includes: a dynamic pressure generation groove () that generates dynamic pressure with sealed fluid introduced thereinto, the dynamic pressure generation groove () being provided in a sliding region X of a lateral surface () thereof on the lower pressure side in which the lateral surface () slides on the lateral wall surface (); and an introduction hole () that has an opening () at a position away from the lateral surface () of an inner peripheral surface () of the seal ring () by a distance Y, communicates with the dynamic pressure generation groove (), and introduces the sealed fluid into the dynamic pressure generation groove ().