Patent ID: 8985478
Filing Date: 2015-03-24
Classification: B05B

Abstract:
1. A method of operating a spray nozzle comprising the steps of: providing a spray nozzle comprising a mixing chamber and at least two through bores leading to the mixing chamber, each through bore being connected to a fluid line, at least one of the through bores being formed for a self-cleaning process and/or devices are provided for cleaning at least one of the through bores; providing a pressurized gas supply line leading to the mixing chamber as one of the fluid lines upstream of one of the through bores formed as a pressurized gas inlet bore; providing a liquid supply line leading to the mixing chamber as one of the fluid lines; introducing a liquid into the liquid supply line; introducing a pressurized gas into the pressurized gas supply line to alter a spray characteristic of the liquid exiting the mixing chamber and spray nozzle; providing a tank for holding a cleaning liquid that is separate from the liquid being supplied to the liquid supply line and separate from the gas being supplied to the pressurized gas supply line; introducing the cleaning liquid from the tank into the pressurized gas supply line upstream of the mixing chamber; introducing the cleaning liquid from the tank into the liquid supply line upstream of the mixing chamber; and passing the cleaning liquid through the liquid supply line and the pressurized gas supply line and then into the mixing chamber before exiting to the spray nozzle.