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:
Dec. 02, 2025
Filed:
Jan. 04, 2024
Nabtesco Corporation, Tokyo, JP;
Osamu Nohara, Tokyo, JP;
Hirofumi Komori, Tokyo, JP;
NABTESCO CORPORATION, Tokyo, JP;
Abstract
A braking force measuring method for a wind turbine is provided. The wind turbine includes a ring gear, a yaw drive device driving a pinion meshing with the ring gear to make the wind turbine turn, and a brake device that prevents the nacelle from turning in the yaw direction by pressing a friction body against the ring gear. The method includes: braking the ring gear by the brake device; measuring a load on a rotating shaft of the pinion that mesh with the braked ring gear; determining a maximum value of the load during a time period when input torque is applied to the pinion, the input torque being applied with the nacelle held still and until the friction body begins to slip and the nacelle begins to turn in the yaw direction; and converting the determined load to the braking force.