Counter-rotating fan
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专利名称：Counter-rotating fan
发明人：加藤 義彦,番場 高大,香川 義久,阿部 孝則
申请号：JP2018069445
申请日：20180330
公开号：JP2019178656A
公开日：
20191017
专利内容由知识产权出版社提供
专利附图：
摘要：The present invention provides a counter-rotating fan having a large air volume.According to one aspect of a counter-rotating fan of the present invention, a first impeller having a plurality of first blades radially arranged around a predetermined
central axis J, and the first impeller are provided. A first fan 1 having a first motor unit 11
that rotates around the central axis, and a first case that surrounds the outer periphery of the first impeller, and a plurality of second radially arranged around the central axis A second fan 2 having a second impeller 20 having two blades, a second motor unit 21 for rotating the second impeller around the central axis, and a second case surrounding the outer periphery of the second impeller; The plurality of first wings includes a front edge portion located at the forefront in the rotational direction and a rear edge portion located at the rearmost in the rotational direction, and the radially outermost end of the rear edge portion Is located closer to the second fan than the radially innermost end. [Selection] Figure 4
申请人：日本電産サーボ株式会社
地址：群馬県桐生市相生町３－９３
国籍：JP
代理人：日本電産株式会社
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