| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid injection nozzle for micronizing a spray. SOLUTION: A recess 15 is formed at the end of the valve body 13 of this nozzle on the fluid injection side. A flat and discoid fuel chamber 51 is formed between the recess 15 and a nozzle-hole plate 25 in parallel with the plate 25. The fuel chamber 51 is formed in a specified wide range around the nozzle hole directly above the nozzle holes 25a, 25b, 25c and 25d on the upstream side of fuel. The four nozzle holes 25a, 25b, 25c and 25d are formed in the plate 25 on the same circumference. The holes 25a, 25b, 25c and 25d having the same diameter are formed in the fuel injecting direction away from the center axis 26 of the plate 25. The holes are covered with the bottom face 15a of the recess 15 and opened to an outer fuel chamber 53. The holes 25a and 25b injecting in the same direction are separated from each other, and the holes 25c and 25d are separated from each other. Consequently, the columns of the fuel injected from the holes are prevented from colliding with one another beneath the holes.
|
