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:
Sep. 19, 2017
Filed:
Nov. 22, 2013
General Electric Company, Schenectady, NY (US);
Joseph Lawrence Chacon, Greenville, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A system and method for preventing a rotor blade from striking a tower of the wind turbine is disclosed. The system includes a pitch adjustment mechanism, at least one electrical switch, and a mechanically-actuated positional switch. The pitch adjustment mechanism is configured to rotate the rotor blade about a pitch axis. Further, the pitch adjustment mechanism includes a motor and a brake. The electrical switch is configured with the motor, the brake, or both. The mechanically-actuated positional switch is fixed within a hub of the wind turbine. Further, the positional switch is configured with the electrical switch such that if the rotor blade rotates to an unsafe region, the positional switch is configured to trigger the electrical switch to implement one of tripping power to the motor of the pitch adjustment mechanism or actuating the brake of the pitch adjustment mechanism.