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:
Nov. 13, 2001
Filed:
Feb. 01, 1999
Applicant:
Inventors:
Kazuo Uematsu, Takasago, JP;
Kiyoshi Suenaga, Takasago, JP;
Assignee:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/18 ;
U.S. Cl.
CPC ...
F01D 5/18 ;
Abstract
In a stationary blade of a gas turbine, the pressure resisting strength can be decreased by using low-pressure cooling air, and effective cooling can be performed by means of a simple construction. An inside shroud,and an outside shroud,are cooled by cooling air passing through an impingement plate. A trailing edge portion of a blade portion,which is thin in shape, is cooled by cooling air flowing in an air passage,Part of this air is discharged through a hole,on the side of the inside shroud,as inside seal air for a combustion gas passage.