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:
Jun. 28, 2022
Filed:
May. 02, 2018
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin. The composite layers are laid up in a blade thickness direction that is a direction connecting a suction side and a pressure side of the composite blade. The composite blade includes a thick part that has a surface layer area from a surface of the thick part to a predetermined depth in the blade thickness direction and a deep layer area at a depth larger than the predetermined depth from the surface in the blade thickness direction. A median value in a predetermined range of thicknesses of each composite layer in the surface layer area is smaller than a median value in a predetermined range of thicknesses of each composite layer in the deep layer area.