The traditional machining method of drilling holes is hardly to fit the development of nozzle with micro holes working under high-pressure fuel injection. 喷油嘴喷孔机械钻削加工已难以适应高压力、微细喷孔喷油嘴发展的需要。
Experiment and research on the idle stability of the high-speed direct injec - tion diesel engine controlled by a micro processor show that n-Q characteristic and the transition characteristic of the fuel injection system have greater in - fluences on the idle speed stability. 对利用微机控制的高速直喷式柴油机的怠速稳定性进行了试验研究。结果表明,n&Q特性和燃料喷射系的过渡特性对发动机的怠速稳定性都有较大影响。