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:
Mar. 24, 2009
Filed:
Jul. 06, 2005
Nobuaki Kizuka, Hitachinaka, JP;
Shinya Marushima, Hitachinaka, JP;
Masami Noda, Hitachinaka, JP;
Shinichi Higuchi, Hitachinaka, JP;
Yasuhiro Horiuchi, Hitachinaka, JP;
Nobuaki Kizuka, Hitachinaka, JP;
Shinya Marushima, Hitachinaka, JP;
Masami Noda, Hitachinaka, JP;
Shinichi Higuchi, Hitachinaka, JP;
Yasuhiro Horiuchi, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gas turbine includes a nozzle vane and a sealing unit engaged with the nozzle vane inside a turbine supplied with combustion gases produced by mixing and burning air for combustion and fuel. The nozzle vane and the sealing unit are disposed in a channel of the downward flowing combustion gases on the outlet side of a gas path. A plurality of engagement portions between the sealing unit and the nozzle vane are provided successively from the upstream side toward the downstream side in a direction of flow of the combustion gases, and a downstream one of the plurality of engagement portions has a contact interface formed in a direction across a turbine rotary shaft. A reduction in the thermal efficiency of the gas turbine can be suppressed.