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用户将越来越偏重于根据整个使用期的费用来挑选发动机,而上述费用中的大部分是运行费。今后,要求发动机必须能够燃用多种规格的燃料。据燃烧理论指出,高喷油压力与容易改变喷油定时的结合,可以改善效率。而在很高的油管压力下工作时,传统的喷油装置有一些局限性。 下面介绍一种新的系统。它保留了用凸轮和滚轮使喷油泵工作的技术,又采用一个电磁控制阀来代替油孔及螺旋槽结构。控制阀的工作程序由电子控制,可以迅速调节转速和控制喷油定时,现已进行的发动机试验证明,大大地提高喷油压力可明显地改善燃油经济性。在发动机其它工况下进行的计算机模拟予测性能表明有类似的改进潜力。在喷油图形状对发动机部分负荷运转的影响方面,理论上也表明有获得改善的可能性。 该系统提供的高喷油压力和喷油定时控制的特点给发动机制造厂开辟了设计的新领域。
Increasingly, users will be focusing on selecting engines based on the cost over their lifetime, most of which are operating expenses. In the future, the engine must be able to burn a variety of fuels. According to the combustion theory, the combination of high injection pressure and easy to change injection timing can improve efficiency. While working under high tubing pressure, the traditional fuel injection device has some limitations. Here’s a new system. It retains the cam and the wheel to make the fuel pump work technology, but also the use of a solenoid valve to replace the oil hole and spiral groove structure. Control valve operating procedures by electronic control, you can quickly adjust the speed and control injection timing, engine tests have been carried out to prove that greatly improve the fuel injection pressure can significantly improve fuel economy. Computer simulation predictions performed under other engine conditions indicate similar potential for improvement. In theory, the effect of fuel injection patterns on engine part load operation also shows the possibility of improvement. The system provides high injection pressure and injection timing control features that have opened up new areas of engine design for engine manufacturers.