| 摘要 |
A radial air intake device for an engine or a power unit that includes a ring-shaped filter for covering the radial air intake. The ring-shaped filter includes a first fixed part and a second mobile part which is movable with respect to the first fixed part through actuator elements, from a filtering position in which the whole radial air intake is covered by the ring-shaped filter, to a bypass position in which the second mobile part uncovers at least partly the radial air intake.
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