Patent ID: 11933263
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A wind turbine blade, comprising:
a blade body extending from a blade root toward a blade tip along a blade length direction;
a first sprayed layer disposed so as to cover at least a leading edge on a side of the blade tip of the blade body, for suppressing erosion of the leading edge of the blade body;
a second sprayed layer formed between the blade body and the first sprayed layer, and having a lower electrical resistivity than the first sprayed layer;
two metallic layers spaced apart from each other in a chord length direction of the blade body, each being disposed on a surface of the blade body and under a part of the second sprayed layer to be electrically connected to the second sprayed layer; and
two conductive parts disposed on a side opposite to the surface of the blade body and electrically connected to the two metallic layers, respectively, for grounding,
wherein the second sprayed layer is formed by copper, a copper alloy, aluminum, or an aluminum alloy, and has a lower hardness and Young modulus than the first sprayed layer.