Beijing, Dec. 7 -- Siemens Gamesa Renewable Energy has applied for Chinese patent for wind turbine. Lysgaard Lars and Nieuwenhuizen John developed it.
The patent application number is CN202010887669 20200828. The patent publication number is CN112443463 (A). International Patent Classification codes are F03D15/20, F03D80/30 and F03D9/25. Cooperative Patent Classification codes are F03D13/20 (EP), F03D15/20 (CN), F03D80/30 (EP, CN, US), F03D80/85 (US), F03D9/25 (CN), Y02E10/72 (EP) and Y02E10/728 (EP).
The abstract of the patent published by the State Intellectual Property Office of China states: "The invention describes a wind turbine comprising a generator enclosed in a generator housing, which generator housing comprises a rotating housing and a stationary housing, and whereby the rotating housing is separated from the stationary housing by a first gap; a canopy mounted on a tower and comprising an electrical connection to a down conductor of the tower, and wherein the canopy is separated from the generator housing by a second gap; characterized by a lightning current path provided by a plurality of brush assemblies mounted on the stationary housing, wherein a brush assembly comprises a brush holder mounted on the stationary housing such that a carbon brush extends across the first gap to make electrical contact with the rotating housing; and an electrical connector extending across the second gap to electrically connect the brush holder to the canopy. The invention also describes a method of providing a lightning current path for such a wind turbine."