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:
Jan. 27, 2009
Filed:
Feb. 17, 2005
Yasuoki Tomita, Takasago, JP;
Masaki Ono, Takasago, JP;
Eiji Akita, Takasago, JP;
Masao Terazaki, Takasago, JP;
Masayuki Takahama, Takasago, JP;
Kouji Watanabe, Takasago, JP;
Hideki Murata, Takasago, JP;
Yasuoki Tomita, Takasago, JP;
Masaki Ono, Takasago, JP;
Eiji Akita, Takasago, JP;
Masao Terazaki, Takasago, JP;
Masayuki Takahama, Takasago, JP;
Kouji Watanabe, Takasago, JP;
Hideki Murata, Takasago, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
In a gas turbine having a plurality of moving blades provided on a rotary shaft in a circumferentially adjoining condition, a seal pin is provided in a spacing between the shanks of the adjacent moving blades for preventing leakage of cooling air from a blade root portion side to an airfoil side; an arcuately depressed portion is formed on the shank of each of the moving blades; and vibration of each of the moving blades is suppressed in such a manner that the seal pin serves as a spring system while the airfoil portion, the platform, the shank, and the blade root portion serve as a mass system.