USE OF ELECTROSTATICS IN AN AEROSOL DEVICE

摘要

A liquid-based aerosol dispensing system can comprise a nozzle membrane in a dielectric material through which liquid formulation is forced. The dielectric can be supported by a surface that has an opening in the nozzle region known as the nozzle slot. The nozzle slot serves as a conduit for the liquid formulation to enter the air channel. The liquid can exit the nozzles in the form of jets that pass through the nozzle slot into the air channel where they break up into aerosol particles. Liquid that does not form into jets remains on the surface of the nozzle membrane as ooze and does not aerosolize. First and second electrodes can be positioned on two sides of the nozzle slot. A voltage unit can provide a voltage difference between the first and second electrode. The electric field on the dielectric can be produced by the voltage unit and thus can increase the contact angle of ooze droplets and increase system efficiency.