| 摘要 |
<p>An air vehicle is provided with: an air blower (10) including an upper blower (11) equipped with rotating blades for pumping air in an axial flow direction and a lower blower (21) equipped with rotating blades for pumping the air pumped from the upper blower in a centrifugal direction, with the upper blower and the lower blower disposed on the same axis and rotating in the opposite directions to each other; and a fixed wing (1) having at least an inner surface formed in a skirt shape to provide a circular conical surface, and mounted concentrically with the air blower. The lower blower is mounted below an inner top face of the fixed wing such that the air pumped and sent in the centrifugal direction strikes the circular conical surface (T) of the fixed wing. The top portion of the fixed wing has no opening except for a passage through which an axial flow is pumped from the upper blower to the lower blower.</p> |
