Air transporting arrangement
AssigneeAstra-Vent AB
InventorsVilmos Torok, Andrzej Loreth
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Abstract
An arrangement for transporting air with the aid of so-called ion-wind which includes at least one corona electrode and at least one target electrode is shown and described. The corona electrode is a thin wire electrode passing from one side of a duct to another, and the target electrode has a shape such that the distance between the corona electrode and the target electrode is less in the region of the corona electrode ends than in the corona electrode middle. This placement of the electrodes closer together at the ends of the wire electrode provides a uniform corona current over the whole length of the elongated corona electrode which provides the most uniform air flow over the entire cross-sectional area of the duct in which the electrodes are mounted.
Claims13
An arrangement for generating a flow of air along a flow path therefor with the aid of an electric ion-wind, comprising at least one thin wire-like corona electrode having first and second opposite ends attached to support means therefor and extending across said flow path in a transverse plane substantially perpendicular to the axial extension of the flow path, at least one target electrode located in said flow path downstream of and spaced from said corona electrode as seen in the axial extension of the flow path and being permeable to a flow of air along said path, and a d.c. voltage source having a first terminal connected to said corona electrode and a second terminal connected to said target electrode for creating a corona discharge at said corona electrode, said target electrode having such a shape that the distance between said transverse plane and said target electrode, as seen in the axial extension of the flow path, is shorter at the ends of said corona electrode than at the center part of the corona electrode located between said ends thereof.
Dependencies are inferred from the claim text.