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14 Zhang lei Flying Car development and its key

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2 高 比 推 力 涵 道 风 扇 技 术<br />

2 High specific thrust ducted fan<br />

完 成 高 比 推 力 电 动 涵 道 风 扇 系 统 的 性 能 测 试 , 完 成 即 时 垂 直 起 降 功 能 的 原 理 验 证 。<br />

The performance test of the high specific thrust electric ducted fan system<br />

is completed, <strong>and</strong> the principle verification of the vertical take-off <strong>and</strong><br />

l<strong>and</strong>ing ability is completed.<br />

桨 效 提 高<br />

20% 以 上<br />

噪 声 可 降 低<br />

10 分 贝<br />

实 验 表 明 , 高 比 推 力 涵 道 风 扇 技 术 效 率 提 高 20% 以 上 , 气 动 噪 声 可 降 低 10dB。<br />

Experiments show that the technical efficiency of the high specific thrust<br />

ducted fan is increased by more than 20%, <strong>and</strong> the aerodynamic noise can<br />

be reduced by 10 dB.

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