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:
May. 26, 2020
Filed:
Feb. 09, 2016
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Azumi Yoshida, Tokyo, JP;
Hidekazu Uehara, Tokyo, JP;
Hiroharu Oyama, Kanagawa, JP;
Kohei Ozaki, Tokyo, JP;
Katsuhisa Hamada, Kanagawa, JP;
Hideaki Sugishita, Tokyo, JP;
Toyoharu Nishikawa, Tokyo, JP;
Yoshihiro Kuwamura, Tokyo, JP;
Kohei Hatano, Tokyo, JP;
Keisuke Matsuyama, Tokyo, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
A seal device for a turbine includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor, each of the thin plates including a root portion disposed on an outer side in a radial direction of the rotor and supported on a stationary part of the turbine and a tip portion disposed on an inner side in the radial direction of the rotor and having a tip surface facing the outer peripheral surface of the rotor. Each of the thin plates is configured such that a width direction of the thin plate is parallel to an axial direction of the rotor at a side of the root portion, and the tip portion of each of the thin plates is configured such that an end on a side of the high-pressure space is positioned downstream of another end on a side of the low-pressure side.