| 摘要 |
The invention relates to an airflow device in which there are adjusters in the flow path to alter the flow geometry of the air. The total cross-section of the flow path is divided into individual flow channels (15, 16, 17) or tube sections (1, 3, 4) one inside the other and there are means or adjusters (13, 14) by means of which the flow paths in the individual flow channels (15, 16, 17; 1, 3, 4) can be controlled. In a preferred embodiment there are three flow channels (15, 16, 17), the ends of which are connected to an internal aperture (22 to 27) in the adjusters (13, 14).
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