LIQUID SPRAYER USING ATOMISING GAS MIXED WITH THE LIQUID IN A SWIRL CHAMBER

A two-phase sprayer for spraying a liquid using an atomizing gas that comprises an annular swirl chamber (50) having a downstream end comprising a substantially annular throat region (52) having an inner diameter and an out er diameter; a gas feed tube (20) adapted for the supply of the atomizing gas where the gas feed tube has a downstream gas feed end (22) comprising a lateral gas port (25) in fluid communication with the swirl chamber (50). Th e lateral gas port (25) adapted to impart a tangential velocity component to g as fed from gas feed pipe (20) to the swirl chamber (50) within the throat regi on (52); and a liquid feed tube (30) adapted for the supply of the liquid to be sprayed and having a downstream liquid feed tube end (32) comprising a later al liquid port (35) in fluid communication with the swirl chamber (50). The liquid port (35) is in fluid communication with the annular throat region (5 2).