Fuente: WIPO "rice" A snow gun directs high pressure air through an input nozzle axially into a mixing chamber, and directs water into a vortex chamber surrounding the air nozzle so that the water spins in a vortex around the air input nozzle. The spinning water flows into the mixing chamber to spin around the periphery of the mixing chamber and around the air nozzle blast. This thoroughly mixes the air and water, and the mixture is directed through an output nozzle into the atmosphere. The output nozzle has a generally cylindrical bore having an inside diameter about one-half the inside diameter of the mixing chamber with the nozzle bore length being approximately equal to the nozzle bore diameter, and a conical surface leads from the mixing chamber to the nozzle bore and is inclined 25 DEG - 30 DEG from the axis of the mixing chamber.