摘要 |
A spray apparatus comprises an outlet connected to a cyclone chamber (104) with at least one gas inlet (112, 113) to the chamber (104) connected to a pressurised source of gas, and at least one liquid inlet (112, 113) to the chamber for connection to a liquid source (108, 110). The cyclone chamber (104) has a cross section which decreases in a direction away from the outlet (106) and a closed base (105) such that in use at least one of the liquid and gas entering the chamber (104) forms a reverse flow cyclone, in which the liquid or gas travels in a first direction away from the inlet (112, 113) to the closed base (105) and thereafter reverses direction and travels towards the outlet (106). |