Process for the production of electrically charged spray mist of conductive liquids
AssigneeBayer Aktiengesellschaft
InventorsWalter Simm, Friedrich-Wilhelm Kremer
Life of this patent
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Abstract
The spray mist is produced by ejecting the liquid from one or more nozzles (1) in the form of jets (2) disintegrating into drops and the liquid formed from the drops is then conveyed to a spray system (4) which is electrically insulated from the nozzles (1) and a powerful electric field is applied between the nozzles (1) and the spray system (4). A spherical impact electrode or a two-material spray nozzle insulated against earth under a high voltage may be used as spray system. The main advantage is that the smooth jet nozzle (1) and hence also the container for the liquid to be sprayed are at earth potential.
Claims11
A process for producing an electrically charged spray mist of a conductive liquid comprising the steps of emitting the conductive liquid in jet form from at least one grounded nozzle, disintegrating the jet of conductive liquid into drops, directing the drops onto a collector electrically insulated from the grounded nozzle, applying a strong electric voltage to the collector and thereby creating a strong electric field between the grounded nozzle and the collector, and spraying the conductive liquid which has now acquired the same electrical charge as the polarity of the collector onto a desired target.
Dependencies are inferred from the claim text.