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:
May. 12, 2020
Filed:
Feb. 17, 2017
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, Hyogo, JP;
Japan Aerospace Exploration Agency, Chofu-shi, Tokyo, JP;
Masayoshi Kobayashi, Kobe, JP;
Ryusuke Matsuyama, Osaka, JP;
Kenta Yamaguchi, Kakogawa, JP;
Hitoshi Fujiwara, Chofu, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Hyogo, Kobe-shi, JP;
JAPAN AEROSPACE EXPLORATION AGENCY, Chofu-shi, Tokyo, JP;
Abstract
A fuel injection device for a gas turbine combustor includes: a pilot fuel injector; a main fuel injector; a plurality of main fuel injection holes arranged in the main fuel injector to inject the fuel rearward; a main fuel injection nozzle to guide the fuel to a main air passage, protruding rearward from a circumference of the main fuel injection hole into the opening formed in a passage wall that forms the main air passage; a heat-shielding casing covering the main fuel injector; and a ring member interposed in an axial gap between the passage wall and the heat-shielding casing. The ring member covers a through-hole gap between the main fuel injection nozzle and a through-hole in the heat-shielding casing, and has a purge passage communicated with the opening to introduce air into the main air passage.