TWO-FLUID NOZZLE

PROBLEM TO BE SOLVED: To inject a gas/liquid mixing mist with strong hitting force from a two-fluid nozzle used as a washing nozzle. SOLUTION: A gas is fed along an axis center line of a nozzle body and a mixing chamber for mixing a liquid to the gas from an outer peripheral direction is provided. An injection chamber is communicated with the mixing chamber and an injection side of the injection chamber is made to a closure part making a distal end surface to a flat surface or a circular surface. A dome-like main hole gradually made to a small diameter toward an apex of a center and having an axial cross section becoming a circular shape is provided at the inside and a mixing fluid is made flowing from the mixing chamber to the main hole. A radial cut-in part is provided on the closure part at the injection side distal end of the injection chamber with a predetermined clearance from an outer peripheral edge. The cut-in part is inclined in a depth direction directed from both ends in a longitudinal direction toward the center and a central part of the cut-in part is communicated with a distal end side of the main hole. A slit-like injection hole spread in a taper shape toward the injection side outer surface is provided making a communication position with the main hole as an inner end. COPYRIGHT: (C)2006,JPO&NCIPI