| 摘要 |
<p>In a fuel injection valve for diagonal injection, an intermediate flow channel having cylindrical surface coaxial with a conical flow channel is formed between the conical flow channel and the injection port, with the injection port connected to the conical surface of the valve seat surface and to the cylindrical surface of the intermediate flow channel, thereby suppressing the production of stagnation of fuel flow to reduce adhesion of carbon deposit. A tapering conical surface whose diameter gradually decreases in the direction of fuel flow is formed on the downstream end of the cylindrical surface of the intermediate flow channel so as to cope with the situation in which the diameter of the injection port is small. The conical vertical angle of the conical surface is smaller than that of the valve seat.</p> |
