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:
Aug. 05, 2014
Filed:
Jul. 08, 2010
Yoichiro Tsumura, Tokyo, JP;
Kyoichi Ikeno, Tokyo, JP;
Yoichiro Tsumura, Tokyo, JP;
Kyoichi Ikeno, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A rotating body includes a rotor diskthat has a moving blade fitting groovethat is annularly provided along the outer circumference and a moving blade lead-in holethat is provided in the outer circumference and is in communication with the moving blade fitting groove; a plurality of moving bladesthat are consecutively provided in the outer circumference and that each have a blade rootthat is fitted in the moving blade fitting grooveand a wing bodythat projects to the outer side of the rotor disk; two special moving bladesA andB that each have a blade rootof which a portion is fitted in the moving blade fitting grooveand a wing bodythat projects to the outer side of the rotor disk, and that by mutually adjoining block the moving blade lead-in hole; and a tensioning keythat is inserted between the moving blades, in which the tensioning keyis provided with an insertion portion whose thickness dimension in the circumferential direction gradually increases from one end on the inner side in the radial direction toward the other end on the outer side in the radial direction.