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. 25, 2022
Filed:
Jun. 26, 2019
Applicant:
Ihi Corporation, Koto-ku, JP;
Inventor:
Masaaki Hamabe, Tokyo, JP;
Assignee:
IHI Corporation, Koto-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
F01D 9/02 (2006.01); F01D 5/14 (2006.01);
U.S. Cl.
CPC ...
F01D 9/02 (2013.01); F01D 5/14 (2013.01); F05D 2240/12 (2013.01); F05D 2250/71 (2013.01); F05D 2260/941 (2013.01);
Abstract
An airfoil of an axial flow machine includes an airfoil part that has a suction surface and a pressure surface, an endwall as a shroud or a platform, and a fillet that is provided along a connecting portion between the airfoil part and the endwall. The fillet includes a first curved surface formed at least on a leading edge side and a trailing edge side in the airfoil part on the suction surface side and a second curved surface formed in a portion other than a portion where the first curved surface is formed. The second curved surface has a smaller curvature radius than the first curved surface.