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. 23, 2021
Filed:
May. 23, 2016
Applicant:
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Inventors:
Yoshihiro Kuwamura, Tokyo, JP;
Hiroharu Oyama, Kanagawa, JP;
Yoshinori Tanaka, Kanagawa, JP;
Hideaki Sugishita, Tokyo, JP;
Assignee:
MITSUBISHI POWER, LTD., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/02 (2006.01); F01D 11/16 (2006.01); F01D 11/08 (2006.01); F16J 15/447 (2006.01); F16J 15/44 (2006.01); F02C 7/28 (2006.01); F16J 15/453 (2006.01); F01D 5/22 (2006.01); F01D 11/18 (2006.01);
U.S. Cl.
CPC ...
F01D 11/025 (2013.01); F01D 11/02 (2013.01); F01D 11/08 (2013.01); F01D 11/16 (2013.01); F16J 15/445 (2013.01); F16J 15/4472 (2013.01); F01D 5/225 (2013.01); F01D 11/18 (2013.01); F02C 7/28 (2013.01); F05D 2220/31 (2013.01); F05D 2240/55 (2013.01); F16J 15/453 (2013.01);
Abstract
A sealing device for suppressing a leakage flow of a fluid via an annular gap between a stationary member and a rotary member of a rotary machine includes: a fixed fin having an annular shape and disposed in the annular gap; and a movable fin having an annular shape and being disposed adjacent to the fixed fin in an axial direction inside the annular gap. The movable fin has a greater thermal expansion coefficient than the fixed fin and is fixed to the fixed fin in a fixing region on a root-end side of the movable fin.