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:
Dec. 03, 2019
Filed:
Jun. 28, 2016
Eagle Industry Co., Ltd., Minato-ku, Tokyo, JP;
Masatoshi Itadani, Tokyo, JP;
Keiichi Chiba, Tokyo, JP;
Hideyuki Inoue, Tokyo, JP;
Yuichiro Tokunaga, Tokyo, JP;
Kenji Kiryu, Tokyo, JP;
EAGLE INDUSTRY CO., LTD., Tokyo, JP;
Abstract
In an embodiment, a pair of sliding components that slide relative to each other is included. One of the sliding components is a stationary-side seal ring, and the other sliding component is a rotating-side seal ring. The seal ringsandhave sliding faces Sand Sextending radially, respectively, for sealing sealed fluid against leakage. The sliding faces Sand Sare provided with a static pressure groovecommunicating with a sealing gas supply passage, and pumping groovescapable of controlling the radial flow of sealing gas to a flow from the low-pressure fluid side to the high-pressure fluid side by relative sliding of the sliding faces. By controlling the radial flow of sealing gas at the sliding face, the amount of flow of the sealing gas flowing to the low-pressure fluid side is reduced to improve sealing performance.