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:
Jul. 14, 2026
Filed:
Mar. 30, 2022
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 21/00 (2006.01); F01D 5/28 (2006.01); F01K 13/00 (2006.01);
U.S. Cl.
CPC ...
F01D 21/003 (2013.01); F01D 5/282 (2013.01); F01K 13/003 (2013.01); F05D 2220/31 (2013.01); F05D 2220/72 (2013.01); F05D 2260/80 (2013.01);
Abstract
An erosion estimation method is for estimating a degree of progress of erosion of a last-stage rotor blade of a steam turbine. The erosion estimation method includes: sampling supplied water containing a substance to be detected, which is included in a material constituting the last-stage rotor blade, from a water supply line that is connected to the steam turbine; measuring a concentration of the substance; and estimating the degree of progress of the erosion of the last-stage rotor blade based on the concentration of the substance.