To provide a spray nozzle capable of promoting atomization of the whole spray fluid by promoting atomization of a central portion of the spray where a particle size of the spray fluid becomes comparatively large, and reducing usage of a spray medium used in miniaturization of a spray fluid or reducing pressurizing force.
A spray nozzle 1 is composed of a partitioning wall 15 of an outer face and a structure 16 accommodated inside. The spray nozzle is provided with a spray fluid flow channel in which a spray fluid 2 flows, a spray medium flow channel 6 in which a spray medium 3 flows, and a first convergence section 91 communicating both flow channels to form a mixture fluid 8. Mixture fluid flow channels 9, 10 in which the mixture fluids 8 flow down, are disposed in opposition to each other, the flows of the mixture fluids 8 opposed to each other at a second convergence section near an outlet hole 11 are made to collide with each other to spray the mixture fluid 8 to the external from the outlet hole 11. A second spray medium flow channel 17 in which another spray medium 18 flows is formed on the spray nozzle in a state of being communicated with the mixture fluid flow channels 9, 10.
OKAZAKI HIROFUMI
OCHI KENICHI
KURAMASU KIMIHARU
OKIMOTO HIDEO
KONDO YUKI
