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.

Date of Patent:
Jun. 07, 2022

Filed:

Feb. 26, 2020
Applicant:

Mitsubishi Power, Ltd., Kanagawa, JP;

Inventors:

Shunsuke Mizumi, Tokyo, JP;

Chongfei Duan, Tokyo, JP;

Yasuhiro Sasao, Yokohama, JP;

Soichiro Tabata, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/32 (2006.01); F01D 9/04 (2006.01); F01D 5/14 (2006.01);
U.S. Cl.
CPC ...
F01D 25/32 (2013.01); F01D 5/141 (2013.01); F01D 5/147 (2013.01); F01D 9/041 (2013.01); F05D 2240/122 (2013.01);
Abstract

A turbine stator blade () includes a pressure side (P) extending in a radial direction intersecting a flowing direction of steam and facing upstream in the flowing direction. A slit () capturing droplets generated by liquefaction of the steam is formed on a downstream side of the pressure side (P). A fine uneven region (), which guides the droplets attached to the pressure side (P) in the radial direction such that the droplets are moved toward the slit () and from upstream toward downstream, is formed in a further upstream position than the slit (). The fine uneven region () has a flow resistance to the droplets gradually increasing from inward to outward in the radial direction.


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