| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve injecting fuel atomized by cavitation occurrence.SOLUTION: This fuel injection valve 100 includes: a nozzle body 10 having a plurality of injection ports 26 for injecting the fuel; a needle 12 stored in the nozzle body 10 to be vertically moved in the direction of the center shaft AX of the nozzle body 10, seated on the seat surface 20 of the nozzle body 10, and separated from the seat surface 20; a swirl flow generation section 28 formed in the outer wall 16 of the needle 12 while being inclined to the direction of the center shaft AX and making the fuel generate a swirl flow; and an annular portion 30 provided in the nozzle body 10 and inserting the needle 12. A clearance 35 is formed between the inner wall 33 of the annular portion 30 and the outer wall 16 of the needle 12. |
