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:
Nov. 06, 2007
Filed:
May. 13, 2005
Yutaka Hashiba, Yokosuka, JP;
Makoto Mikami, Tokyo, JP;
Takeshi Hayashi, Yokohama, JP;
Yukihiko Kazao, Yokohama, JP;
Ikuo Saito, Yokohama, JP;
Hidekazu Shiomi, Chiba, JP;
Yoshihiro Taniyama, Tokyo, JP;
Yasuo Kabata, Yokohama, JP;
Yutaka Hashiba, Yokosuka, JP;
Makoto Mikami, Tokyo, JP;
Takeshi Hayashi, Yokohama, JP;
Yukihiko Kazao, Yokohama, JP;
Ikuo Saito, Yokohama, JP;
Hidekazu Shiomi, Chiba, JP;
Yoshihiro Taniyama, Tokyo, JP;
Yasuo Kabata, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
Hydrogen gas is circulated to cool an electric rotating machine main body, and brush seals are provided to contact a predetermined position on the outer circumferential surface of a rotating shaft. As a result, contact of a sealing oil and the hydrogen gas, contact of a lubricating oil and the sealing oil in the bearing, and leakage of the hydrogen gas outside the machine are prevented.