| 摘要 |
<p>A device for transporting air, said device using an electric ion wind and including at least one corona electrode (K) and at least one target electrode (M) provided downstream of the corona electrode (K), seen in the desired direction of the air flow. A d.c. voltage source (3) has its positive terminal connected to the corona electrode (K) and the other terminal to the target electrode (M), the potential being such that an ion generating a corona discharge appears at the corona electrode and a transport of air is directed towards and through the target electrode (M). The corona electrode (K) includes at least one and preferably several wire-shaped electrode elements (k) having their free ends directed towards the plane of the target electrode (M). The corona discharge is stable, i.e. without risk for so-called streamers effect. This is achieved by the corona element or more correctly its free end directed towards the target electrode (M) consisting of a sufficiently thin wire-shaped element having an equivalent diameter less than 0.2 mm and preferably less than 0.1 mm.</p> |
