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. 12, 2017
Filed:
Oct. 26, 2011
Hidekazu Uehara, Tokyo, JP;
Tanehiro Shinohara, Tokyo, JP;
Shin Nishimoto, Tokyo, JP;
Takashi Nakano, Tokyo, JP;
Masato Araki, Tokyo, JP;
Tatsuji Takahashi, Tokyo, JP;
Hidekazu Uehara, Tokyo, JP;
Tanehiro Shinohara, Tokyo, JP;
Shin Nishimoto, Tokyo, JP;
Takashi Nakano, Tokyo, JP;
Masato Araki, Tokyo, JP;
Tatsuji Takahashi, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A shaft seal structure capable of preventing a seal body of the shaft seal structure of a rotation body from being held in an inclined posture even when the seal body is inclined is provided. It includes, an accommodation body (), a seal body () including thin plate seal pieces (), and a plate body () covering one end in the axial direction () of the seal body (). A recessed portion () recessing in the axis direction, and a protruding portion projecting to the other side from the recessed portion () are formed on one of the plate surface () of the plate body () and the inner wall surface () of the accommodation body (). When the protruding portion abuts the other side and a pocket (X), the recessed portion () communicates with the pocket (X) and the fluid low pressure region.