New type of straight-blade vertical axis wind turbine
By introducing multiple pitch angle adjustment devices and detachable blade structures into vertical axis wind turbines, adaptive adjustment of blades in different wind speed ranges is achieved, solving the problem of difficulties in applying variable pitch technology, improving wind energy utilization and power generation efficiency, and reducing blade damage.
CN121024836BActive Publication Date: 2026-07-03HUNAN YUZHI TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN YUZHI TECHNOLOGY CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-03
Smart Images
Figure CN121024836B_ABST
Abstract
This invention discloses a novel straight-blade vertical-axis wind turbine, comprising: a tower, a wind turbine mounted on the top of the tower, and multiple sets of pitch angle adjustment devices. The wind turbine includes multiple connecting rods, support bearings fixed to the extended ends of each connecting rod, blades rotatably mounted in each support bearing, and positioning bosses fixed to each blade. The blades are eccentrically rotated around a vertical mounting centerline. Each pitch angle adjustment device includes a positioning stop. When the positioning boss contacts the positioning stop, the angle between the blade chord length and the tangent of its revolution forms a pitch angle β. The positioning stop limits the blade to rotate at a pitch angle β within the working range of azimuth angle β to 180°+β. This invention can effectively improve wind energy utilization and solves the problem of difficulties in applying variable pitch technology to vertical-axis wind turbines.
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Citation Information
Patent Citations
Pitch-variable mechanism of vertical axis wind turbine
CN103233861A
Variable-blade-pitch-angle vertical-axis wind turbine power generation device
CN112196731A