FIELD: wind and air devices.
SUBSTANCE: wind turbine (10) contains a hub (11), a blade (12) and at least two first grooves (13). The blade (12) includes a blade shank (121), an outer edge (122) and a suction surface (126). The blade shank (121) is connected to the hub, the outer edge (122) being further from the hub (11) than the blade shank (121), and the suction surface (126) is connected to the blade shank (121) and the outer edge (122). The first grooves (13) are formed on the suction surface (126) at positions near the outer edge (122) and are successively spaced from each other along the extension direction of the outer edge (122).
EFFECT: wind turbine (10), fan (100) and air conditioner (200) are provided.
15 cl, 16 dwg
| Title | Year | Author | Number |
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| WATER TREATMENT SYSTEM | 2017 |
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RU2664934C1 |
