A boundary layer propulsor (100) comprises a rotor (110) and a plurality of first aerofoil blades (120). The rotor has an axis of rotation (112). 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 (130), a middle portion (140), and a radially distal portion (150). The radially proximal portion has a first cambered cross-section (132), the middle portion has a second uncambered cross-section (142), and the radially distal portion has a third cambered cross-section (152). The first cambered cross-section is cambered in an opposite sense to the third cambered cross-section.
PASSIVE BOUNDARY LAYER PROPULSOR
PASSIVER GRENZSCHICHT-PROPELLER
PROPULSEUR PASSIF DE COUCHE LIMITE
2021-04-07
Patent
Electronic Resource
English
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