| 摘要 |
PROBLEM TO BE SOLVED: To improve atomization performance of injection fluid in a fluid injection nozzle. SOLUTION: Fluid injection nozzle is provided with a nozzle body 2 provided with a valve seat surface 14, a valve element 3 provided with a seat part 18, and an injection hole plate 4 provided with injection holes 22a, 22b. The valve is opened and closed by putting the seat part under a seated condition and a seating release condition to the valve seat surface by stroke action of the valve element, and fluid is injected from the injection holes when valve opens. In such a fluid injection nozzle, fluid passage hollow parts 23a, 23b are provided on the injection hole plate and open sides of the fluid passage hollow parts are blocked by a tip end surface of the seat part when the valve opens to form fluid passages 27a, 27b. Then, fluid flows down the fluid passages and flows into the injection holes. COPYRIGHT: (C)2008,JPO&INPIT
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