Title:
BLADE FOR WIND MILL OF WIND POWER GENERATOR
Document Type and Number:
Japanese Patent JP2022090583
Kind Code:
A
Abstract:
To make a large quantity of winds act on a blade for a windmill arranged in a wind flow as much as possible in order to improve an output of a wind power generator, and to efficiently use wind energy.SOLUTION: In a blade for a windmill of a wind power generator, a blade part has a cross section shape which is called as an airfoil type, a tip part and a rear end part of the blade part are formed in linear shapes or spiral shapes which continue to a cylinder face or a tapered face which is coaxial with a rotating shaft within a range of a prescribed phase angle with respect to the rotating shaft, and a rear end part side (cusp side) of the airfoil type is located at an inside diameter side (rotating shaft side) and rotates. N-pieces of blades constituting the blade part of the blade for the windmill are constituted without air gaps so as to be overlapped on the adjacent blade and a projection face in a wind direction via a rotating shaft part toward a rear (leeward) side from a front (windward) side of the rotating shaft part, and a wind is made to effectively act on the blade.SELECTED DRAWING: Figure 5
Inventors:
KIKUCHI HIDEYA
Application Number:
JP2020214281A
Publication Date:
June 17, 2022
Filing Date:
December 07, 2020
Export Citation:
Assignee:
KIKUCHI HIDEYA
International Classes:
F03D3/06