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:
Apr. 17, 2018
Filed:
Jan. 17, 2011
Tsuyoshi Kitamura, Minato-ku, JP;
Shinichiro Masaki, Minato-ku, JP;
Tsuyoshi Kitamura, Minato-ku, JP;
Shinichiro Masaki, Minato-ku, JP;
MITSUBISHI HEAVY INDUSTRIES AERO ENGINES, LTD., Aichi, JP;
Abstract
An aircraft gas turbine is constituted by accommodating a compressor (), a combustor (), and a turbine () in a cylindrical main unit casing (). A thick wall part () is provided on an outer periphery side of rotor blades () in the main unit casing. A cooling passage (), for cooling the thick wall part () by circulating compressed air compressed by the compressor, is provided in the thick wall part. Also provided is a discharge passage () for discharging compressed air having circulated in the cooling passage to a combustion gas passage A. The structural strength of the thick wall part is ensured by appropriately cooling the thick wall part of the casing, while simplifying the structure and preventing a decrease in efficiency, thereby ensuring effective containment performance and an appropriate clearance between the casing and the rotor blades.