US Patent Issued to HAWE Hydraulik on Feb. 17 for "Hydraulic system for pitch angle adjustment of a rotor blade of a wind turbine and wind turbine with such a hydraulic system" (German Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,412, issued on Feb. 17, was assigned to HAWE Hydraulik SE (Aschheim, Germany).

"Hydraulic system for pitch angle adjustment of a rotor blade of a wind turbine and wind turbine with such a hydraulic system" was invented by Andreas Nocker (Aschheim, Germany), Thomas Wechsel (Aschheim, Germany) and Jesper Berg Hansen (Aschheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic system for the pitch angle adjustment of a rotor blade of a wind turbine) includes a variable displacement pump, a hydraulic accumulator, a dynamic valve, a control valve, a tank and a pitch cylinder. The variable displacement pump is connected to the control val...