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:
Feb. 24, 2026
Filed:
Jun. 05, 2023
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A gas turbine stator blade includes a leading edge portion partition wall divides an in-blade cavity into a leading edge-side cavity and a trailing edge-side cavity, a negative pressure surface-side partition wall formed integrally with the blade body, divides the leading edge-side cavity into a negative pressure surface-side cavity and a pressure surface-side cavity, and is formed with a negative pressure surface-side impingement cooling hole, and a tube-shaped pressure surface-side insert inserted into the pressure surface-side cavity to provide a first gap between the pressure surface forming wall and the pressure surface-side insert and a second gap between the negative pressure surface-side partition wall and the pressure surface-side insert and is formed with a pressure surface-side impingement cooling hole. A part of cooling air cools the negative pressure surface forming wall by passing through the first gap, the second gap, and the negative pressure surface-side impingement cooling hole.