Solar sail
专利汇可以提供Solar sail专利检索，专利查询，专利分析的服务。并且PURPOSE: To conduct simply and surely the extension and housing of a blade receiving a solar wind, by heating appropriately a shape memory alloy spring by means of a heating heater, and changing, by this means, a relative energizing force against a bias spring into a large one or a small one.
CONSTITUTION: A solar sail is fitted at a position where a moment is generated against the structure body of an object flying in space. In this instance, when a heating heater 7 is OFF, the energizing force of a bias spring 8 is stronger than that of a shape memory alloy spring 11, so the latter 11 is more elongated than the former 8. As a result, the blade 13 and the blade support 12 of the solar sail are respectively maintained in a housing condition. Meanwhile, when the heating heater 7 becomes ON, the shape memory alloy spring 11 is heated, and its energizing force becomes stronger than that of the bias spring 8. As a result, the blade 13 and the blade support 12 are respectively extended till they come under the condition of their receiving a solar wind.
COPYRIGHT: (C)1991,JPO&Japio，下面是Solar sail专利的具体信息内容。
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