| 摘要 |
<p>This fuel injection valve (30) is provided with: a nozzle body (31) to which a nozzle hole (33) is provided at the tip; a needle (32) that is disposed slidably within the nozzle body (31), forms a fuel introduction path (36) between the needle (32) and the nozzle body (31), and is seated in a seat section (35) within the nozzle body (31); a helical fuel pathway (38) that imparts a flow gyrating around the needle (32) to the fuel introduced from the fuel introduction path (36) and supplied to the nozzle hole (33); and an acceleration section (39) that is formed between the seat section (35) and the nozzle hole (33) and that accelerates the gyrating fuel after passage through the fuel pathway (38). The fuel pathway (38) is formed to the outside of the outer peripheral surface of the needle (32).</p> |
