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:
Mar. 04, 1980
Filed:
Jan. 31, 1978
Applicant:
Inventors:
Michio Kuroda, Hitachi, JP;
Yoshiaki Yamazaki, Hitachi, JP;
Kiyoshi Namura, Hitachi, JP;
Fumio Kato, Hitachi, JP;
Yasuaki Akatsu, Hitachi, JP;
Daizo Morimoto, Hitachi, JP;
Satoshi Ninomiya, Hitachi, JP;
Assignees:
Hitachi, Ltd., , JP;
Hitachi Kizai Kogyo Co. Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ; F01D / ;
U.S. Cl.
CPC ...
4161 / ; 416190 ; 416500 ;
Abstract
A turbomachine rotor arrangement is provided having a rotor wheel and blades thereon with a tie pin for interconnecting adjacent blades. A plurality of blades respectively define tie holes wherein the tie holes of adjacent blades are disposed with the radial heights of said holes being different and with the tie pin disposed in the tie holes so as to be acted upon by respective different amplitudes of vibration than said adjacent blades during rotation.