| 摘要 |
PROBLEM TO BE SOLVED: To provide a spray nozzle which can make liquid drop diameters uniform and minute without complicating its structure and further which can prevent appearance of a gross liquid drop at a peripheral part of a spraying pattern. SOLUTION: The spray nozzle 1 is provided with an internal passage 5 which is formed along a central axis line of the nozzle and which supplies one fluid among liquid and gas, an annular passage 6 which is formed at an outer periphery of the internal passage 5 in the nozzle and which supplies another fluid, a mixing passage 7 for mixing the fluid from the internal passage 5 with the fluid from the annular passage 6 and a jetting port 4a for injecting a gas-liquid fluid mixture from the mixing passage 7. Thus a distribution tip 9 for ejecting the fluid from the internal passage 5 toward an inner wall of the mixing passage 7 is disposed in the internal passage of the spray nozzle. Further a mixing chamber 8 with a reducing diameter may be stepwise formed at a downstream side of the mixing passage 7. COPYRIGHT: (C)2005,JPO&NCIPI
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