PROPULSOR |
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| 申请号 | US15899481 | 申请日 | 2018-02-20 | 公开(公告)号 | US20180237126A1 | 公开(公告)日 | 2018-08-23 |
| 申请人 | ROLLS-ROYCE plc; | 发明人 | Martin N. GOODHAND; Matthew MOXON; | ||||
| 摘要 | A boundary layer propulsor comprises a rotor and a plurality of first aerofoil blades. The rotor has an axis of rotation. The plurality of first aerofoil blades extends radially from the rotor and is arranged in a circumferential array around the axis of rotation. Each of the first aerofoil blades has, in a radially outward sequence, a radially proximal portion, a middle portion, and a radially distal portion. The radially proximal portion has a first cambered cross-section, the middle portion has a second uncambered cross-section, and the radially distal portion has a third cambered cross-section. The first cambered cross-section is cambered in an opposite sense to the third cambered cross-section. | ||||||
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| 说明书全文 | |||||||
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