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:
Feb. 14, 2023

Filed:

Mar. 22, 2019
Applicant:

Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;

Inventors:

Yoshio Fukui, Yokohama, JP;

Masamitsu Kuwabara, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/16 (2006.01); F01D 5/10 (2006.01); F01D 25/06 (2006.01);
U.S. Cl.
CPC ...
F01D 5/16 (2013.01); F01D 5/10 (2013.01); F01D 25/06 (2013.01); F05D 2220/30 (2013.01); F05D 2230/00 (2013.01); F05D 2260/96 (2013.01);
Abstract

A turbine blade includes: a platform; an airfoil portion extending from the platform in a blade height direction and having a pressure surface and a suction surface extending between a leading edge and a trailing edge; a blade root portion positioned opposite to the airfoil portion across the platform in the blade height direction and having a bearing surface; and a shank positioned between the platform and the blade root portion. The shank has a cross-section which is perpendicular to the blade height direction of the airfoil portion, and in which a line segment connecting a widthwise center position of a leading-edge-side end portion of the shank and a widthwise center position of a trailing-edge-side end portion of the shank is sloped to a center line between a pressure-surface-side contour of the blade root portion and a suction-surface-side contour of the blade root portion.


Find Patent Forward Citations

Fukui, Yoshio. (2023). Turbine blade, turbine, and method of tuning natural frequency of turbine blade (U.S. Patent No. 11578603). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11578603

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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