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:
Apr. 05, 2022
Filed:
May. 16, 2019
Eagle Industry Co., Ltd., Tokyo, JP;
Wataru Kimura, Tokyo, JP;
Yuichiro Tokunaga, Tokyo, JP;
Yoshiaki Takigahira, Tokyo, JP;
Toru Kono, Tokyo, JP;
Hidetoshi Kasahara, Tokyo, JP;
Jun Hiromatsu, Tokyo, JP;
Takafumi Ota, Tokyo, JP;
Abstract
Provided is a seal ring configured so that a fluid film can be formed between sliding surfaces across a wide range of rotation speed and configured with high lubricity. A seal ring for sealing a clearance between a rotary shaft and a housing includes, dynamic pressure grooves formed at a sliding surface of the seal ring and having positive pressure generators and negative pressure generators, and static pressure supply paths formed at the sliding surface of the seal ring to extend from an inner diameter side to an outer diameter side and to open on a sealed fluid side. Each of the positive pressure generators, each of the negative pressure generators, and each of the static pressure supply paths are arranged in description order in a circumferential direction of the sliding surface.