| abstract |
An ultra low volume (ULV) aerosol generator usable to dispense fluid material in the form of relatively small droplets into the atmosphere. The generator has a pump operable to deliver hot compressed air to a dispensing nozzle. Fluid material under pressure is supplied to the nozzle. A flow regulator controls the rate of flow of fluid material to the nozzle and a flow meter plus fluid material temperature sensing gauge is used to monitor the rate of fluid flow. The hot air in the nozzle heats the fluid material in the nozzle to decrease its viscosity and facilitate atomization. Hot air under pressure and hot fluid material are simultaneously discharged from the nozzle into the atmosphere. The rapidly moving and expanding air atomizes the heated fluid material into relatively small and generally uniform droplets. |