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. 20, 2001
Filed:
Feb. 23, 1999
Ichiro Fukue, Takasago, JP;
Eiji Akita, Takasago, JP;
Kiyoshi Suenaga, Takasago, JP;
Yasuoki Tomita, Takasago, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A gas turbine moving blade platform having a simplified platform cooling structure. A cooling effect of the platform side end portions is increased resulting in uniform cooling of the entire platform. Cooling passages (,) are bored in the platform (,) front portion so as to communicate with a cooling air passage (,) of the moving blade (,) and open at both platform side end surfaces. The openings are closed by inserting covers (,) therein. Cooling passages (,) are bored in platform (,) side end portions so as to communicate with the front end cooling passages (,), respectively, and open in the platform rear end surface. A plurality of cooling holes (,) are bored so as to communicate with the cooling passage (,) and open at the platform side end surface. Thus, the entire platform is cooled uniformly and the platform side portions are cooled by the cooling holes (,) so that an effective cooling performance is ensured and also the workability of the cooling lines is enhanced.