Patent ID: 6899289

Claim:
A nozzle for mixing a gaseous fluid and a liquid and for ejecting an atomized mist of liquid droplets comprising: a nozzle body defining a first annular gap, a first annular chamber and a second annular chamber along the length thereof; means for introducing pressurized gaseous fluid into said first annular gap; means defining a first restricted annular orifice leading from said first annular gap to said second annular chamber; means for introducing pressurized liquid into said first annular chamber; a second restricted annular orifice leading from said first annular chamber to said second annular chamber, whereby liquid and gaseous fluid are aggressively mixed in said second annular chamber; and a third restricted annular orifice leading from said second annular chamber to atmosphere; wherein: said nozzle body includes a main body portion, a body cap portion, and a throttle pin member extending through said body on a longitudinal axis thereof; said first annular gap is defined between an outer surface of said throttle pin member and an inner surface of an axial bore within said main body portion; said first annular chamber is defined between a distal frustoconical surface of said main body portion and an inner surface of a central axial bore section within said body cap portion; and said annular chamber is defined between an outer surface of a reduced diameter portion of said throttle pin member and an inner surface of a reduced diameter axial bore section of said body cap portion, whereby mixed liquid and gaseous fluid are forcibly ejected from said nozzle through said third restricted annular orifice, the liquid being atomized in small controlled droplets in the ejected gaseous fluid.