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:
Jun. 09, 1992
Filed:
Mar. 12, 1990
Applicant:
Inventors:
Fumio Ohtomo, Ayase, JP;
Tatsuo Araki, Tokyo, JP;
Asako Matsuura, Yokohama, JP;
Yoshiaki Tsukumo, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415115 ; 416 / ;
Abstract
A blade includes a blade body having a cavity, an insert inserted in the cavity, a plurality of impingement holes formed in a circumferential wall of the insert, and a recovery path for recovering a cooling medium sprayed from the impingement holes. The cooling medium can be recovered without being discharged into a main gas. A gas turbine having this blade is used for a combined cycle power plant. In this plant, steam is supplied as a cooling medium to the blade, and the steam recovered from the blade is supplied to a steam turbine.