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:
Feb. 07, 2006
Filed:
Nov. 20, 2002
Friedrich Soechting, Miami, FL (US);
Yasuoki Tomita, Takasago, JP;
Shunsuke Torii, Takasago, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
Holesandhave upstream opening portionsandand downstream opening portionsandwhich have a larger cross-sectional area than upstream opening portionsand, and are formed at top portion TP of each moving blade. Holesandhave tapered shapes Tand Tor step portions, and preferably, downstream opening portionsandare eccentrically formed toward the moving direction. When tip squealeris formed, holeis formed so that its opening portion is provided at the side surface of tip squealer. Without covering the holes for cooling which are formed at the top portion of the turbine blade due to rubbing or the like, the turbine blade is accurately cooled and stably driven.