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:
Sep. 02, 2025

Filed:

Jan. 13, 2023
Applicant:

Mitsubishi Heavy Industries, Ltd., Tokyo, JP;

Inventors:

Tatsuya Hagita, Tokyo, JP;

Yoshitaka Hirata, Tokyo, JP;

Mitsuhiro Karishuku, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 9/40 (2006.01); F02C 3/20 (2006.01); F02C 3/22 (2006.01); F02C 7/228 (2006.01); F02C 7/232 (2006.01); F02C 9/26 (2006.01); F02C 9/32 (2006.01); F23R 3/28 (2006.01); F23R 3/34 (2006.01); F23R 3/36 (2006.01);
U.S. Cl.
CPC ...
F02C 9/40 (2013.01); F02C 3/20 (2013.01); F02C 3/22 (2013.01); F02C 7/228 (2013.01); F02C 7/232 (2013.01); F02C 9/263 (2013.01); F02C 9/32 (2013.01); F23R 3/286 (2013.01); F23R 3/34 (2013.01); F23R 3/36 (2013.01);
Abstract

A control method for a gas turbine combustor including an air-hole plate having a plurality of air holes formed therein, and a plurality of fuel nozzles corresponding to respective ones of the plurality of air holes. The gas turbine combustor is operable to combust a hydrogen fuel and a fuel other than the hydrogen fuel. The air holes include: first air holes having, among passageways from an entry end to an exit end, an inclined passageway extending in a direction inclined with respect to the central axis of the air-hole plate in a region including at least the exit end; and second air holes extending in parallel to the central axis. The fuel nozzles include first fuel nozzles corresponding to respective first air holes, and second fuel nozzles corresponding to respective second air holes. During hydrogen fuel firing, the hydrogen fuel is not supplied to the first fuel nozzles.


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