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:
Jan. 29, 2019
Filed:
Dec. 15, 2015
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Kohei Ozaki, Tokyo, JP;
Azumi Yoshida, Tokyo, JP;
Hidekazu Uehara, Tokyo, JP;
Tanehiro Shinohara, Tokyo, JP;
Hiroharu Oyama, Kanagawa, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
A shaft sealing mechanism () that partitions an annular space () that is formed between a fixed part () and a rotating shaft () into a high-pressure-side region and a low-pressure-side region, that obstructs the flow of a fluid (G), and that is provided with: a plurality of annularly laminated thin-plate seal pieces () that are fixed to an annular seal housing () that is provided to the fixed part and are in sliding contact with the rotating shaft; and an annular low-pressure-side plate () that is sandwiched and held such that a low-pressure-side gap (δL) is formed between the seal housing and a low-pressure-side side edge part () of the thin-plate seal pieces. The thin-plate seal pieces have a thick part () that is formed further to the inside in the radial direction of the rotating shaft than an inner-circumferential-side tip part () of the low-pressure-side plate.