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:
Nov. 14, 2023
Filed:
Jan. 17, 2020
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Takuro Koda, Hiroshima, JP;
Abstract
A rotor bladeincludes a blade bodywhich has a negative-pressure surfaceand a positive-pressure surfaceextending in a blade height direction Z, and a platformwhich is connected to an end portion of the blade bodyin the blade height direction Z and extends in a circumferential direction Dc. In an end surfaceof the platformfacing an axial direction Da, a convex portionprotruding in the axial direction Da and a concave portionrecessed in the axial direction Da are formed on an end surfaceof the platformfacing the upstream side Dau. When viewed in the blade height direction Z, the convex portionand the concave portionare alternately formed in the circumferential direction Dc.