| 摘要 |
<p>A fuel injection valve (30) includes: a nozzle body (31) having a frond edge portion at which an injection hole (33) is provided; a needle (32) that is slidably arranged in the nozzle body (31) and sits on a seat portion (35) in the nozzle body (31), the needle (32) and the nozzle body (31) forming a fuel introduction path (36) therebetween; a spiral fuel path (38) that is formed at an upstream side of the seat portion (35), and gives a flow which swirls around the needle (32) to a fuel which is introduced from the fuel introduction path (36) and supplied to the injection hole (33); and an acceleration portion (39) that is formed between the seat portion (35) and the injection hole (33), and accelerates the swirling fuel which has passed through the fuel path (38); wherein the fuel path (38) is formed to the outside of an outer peripheral surface of the needle (32).</p> |
