喷油嘴流量特性对喷油规律的影响

Effects of the Discharge Characteristics of Fuel Spray Nozzles on the Fuel Spraying Law

通过对ＺＳ１５Ｓ１５型轴针式喷油嘴流量特性的试验研究结果表明，该型号喷油嘴技术状态正常时，不同针阀升程其流量在较大范围内变化．经过使用一定时期后，这种变化更加明显，导致喷油规律的改变，影响到发动机实际工作性能指标。

The discharge characteristics of model ZS1 5S15 fuel spray nozzles were measured. The results showed that the discharge the fuel spray nozzles at normal state varied with the needle valve ceiling to a great extend.The results was more evident after a period of time at which the nozzle was used, therefore, the fuel spraying law of the would change, and the working performance of the engine would be affected.