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:
Mar. 24, 2020
Filed:
May. 13, 2016
Eagle Industry Co., Ltd., Minato-ku, Tokyo, JP;
Yuichiro Tokunaga, Tokyo, JP;
Hideyuki Inoue, Tokyo, JP;
Wataru Kimura, Tokyo, JP;
Tetsuya Iguchi, Tokyo, JP;
Takeshi Hosoe, Tokyo, JP;
Hidetoshi Kasahara, Tokyo, JP;
Takafumi Ota, Tokyo, JP;
Keiichi Chiba, Tokyo, JP;
Masatoshi Itadani, Tokyo, JP;
Hikaru Katori, Tokyo, JP;
EAGLE INDUSTRY CO., LTD., Tokyo, JP;
Abstract
In an embodiments, in a sealing face of at least one slide part of a pair of slide parts, a dynamic pressure generation grooveis provided so as to be separated not to communicate with a sealed fluid side and a leakage side by land portions on both sealing faces, between an endon the leakage side of the dynamic pressure generation grooveand the leakage side, a fluid introduction groovewhich communicates the dynamic pressure generation grooveand the leakage side is provided, and the cross-sectional area of the fluid introduction grooveis set smaller than the cross-sectional area of the dynamic pressure generation groove. The sealing faces are subjected to fluid lubrication and low friction in a steady operation, and leakage of the sealed fluid and entrance of dust into the sealing faces are suppressed.