ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,469, issued on Nov. 25, was assigned to HUANENG GUANGXI CLEAN ENERGY Co. LTD. (Nanning, China).
"Methods and devices for independently pitching of wind turbine" was invented by Jigang Xia (Nanning, China), Xuekong Li (Nanning, China), Chunliang Huang (Nanning, China) and Xu Han (Nanning, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method and a device for independently pitching of a wind turbine. The method includes: driving a first gear using a pitch motor, such that a second gear meshed with the first gear drives a bearing inner ring to rotate to drive a paddle of a wind turbine connected to an outer side of the bearing inne...