| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mist forming method using a fluid injection valve that achieves both of improvement of atomization of mists and an increase in degree of design freedom for a mist shape, mist pattern, and an injection amount distribution, and to provide a fluid injection valve and a mist forming apparatus. <P>SOLUTION: The mist forming method using a fluid injection valve is formed of a nozzle portion or an injection hole plate located downstream of the valve seat and having injection holes 12, and configured to turn in-hole flows and flows immediately below the injection holes into substantially liquid film flows. Directions of jets 30, 31 from the injection holes 12 are not necessarily brought into coincidence with a center axis direction of the injection holes and are not necessarily crossed with one another in a downstream part, after the jets from the respective injection holes 12 turned into mists at a position downstream of a break length position (a), after which the mists are allowed to gather closer by the Coanda effect so as to appear substantially as one solid mist, and allowed to keep gathering until catching of ambient air and a resulting air flow along a downstream flow direction in a predetermined in-mist portion attenuate. <P>COPYRIGHT: (C)2013,JPO&INPIT |
