Invention Application
US20020131859A1 Fan or propeller, with shape memory 有权
风扇或螺旋桨,形状记忆

Fan or propeller, with shape memory
Abstract:
A propeller or fan, in particular a cooling fan, such as for the radiator of a motor vehicle or electric equipment, for civil or industrial plants, comprising shape-memory actuator means to regulate the direction and/or shape of the blades, for example according to variations in temperature.
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