Apparatus for producing a directed flow of a gaseous medium utilizing the electric wind principle
OwnerCarl M. Fleckinventor
Life of this patent
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Abstract
An electric-wind or static-breeze generating system in which ions are produced in a duct and drift toward a counterelectrode thereby displacing a gas, e.g. air, through the duct at atmospheric pressure. Nozzles can introduce an aerosol to increase the air displacement and an alternating current system can be utilized to energize the device in a bipolar manner.
Claims16
In an apparatus wherein charged particles are generated by a discharge electrode and are collected on a plurality of spaced-apart collector plates at a potential different from that of said discharge electrode, the improvement which comprises intermediate collector plates not connected to any voltage source and disposed between but insulated from the first-mentioned collector plates and positioned in the electric field between said first collector plates and said discharge electrode to have induced on said intermediate collector plates potentials between those of said first collector plates and said discharge electrode.
An apparatus for generating a directed stream of a gas, comprising:
- means forming a duct having an inlet side and an outlet side;
- at least one discharge electrode in said duct for producing ions therein;
- a counterelectrode spaced in said duct from said discharge electrode toward said outlet side, said electrode being positioned and energized to establish a potential field between them and generate a glow discharge at said discharge electrode with a discharge current between substantially 10.sup.-6 A/cm.sup.2 and 10.sup.-1 A/cm.sup.2, said counterelectrode having guide surfaces for air traversing said duct having edges parallel to the discharge electrode and disposed such that ions are emitted from said discharge electrode over an apex angle of less than 180.degree. whereby an ion drift between said discharge electrode and said counterelectrode displaces said gas through said duct;
- and
- an auxiliary electrode spaced from said discharge electrode toward said inlet side and of the same polarity as said discharge electrode, said auxiliary electrode having edges parallel to said discharge electrode.
An apparatus for generating a directed stream of a gas, comprising:
- means forming a duct having an inlet side and an outlet side;
- at least one discharge electrode in said duct for producing ions therein;
- a counterelectrode spaced in said duct from said discharge electrode toward said outlet side, said electrode being positioned and energized to establish a potential field between them and generate a glow discharge at said discharge electrode with a discharge current between substantially 10.sup.-6 A/cm.sup.2 and 10.sup.-1 A/cm.sup.2, said counterelectrode having guide surfaces for air traversing said duct having edges parallel to the discharge electrode and disposed such that ions are emitted from said discharge electrode over an apex angle of less than 180.degree. whereby an ion drift between said discharge electrode and said counterelectrode displaces said gas through said duct;
- and
- nozzle means for spraying an aerosol of a liquid into said duct whereby droplets of said aerosol receive electrical charge from said ions and drift toward said counterelectrode, said nozzle means having a conical spray pattern with an apex angle less than 90.degree., said aerosol passing along a path of at least 20 mm and being subjected along said path to a potential difference between substantially 10 and 30 kV.
Dependencies are inferred from the claim text.