CAJ | 학술논문

针对电磁式喷油器控制腔压力试验测量难度大的问题，利用AMESim软件搭建了反映喷油器工作过程的喷油器仿真模型，并进行了试验验证。基于该仿真模型分析了控制腔最小容积变化对喷油器性能的影响。控制腔最小容积增大，喷油持续期减小，最大喷油速率减小，但减小的幅度不大。活塞上方压力和喷射速率的变化趋势与控制腔最小容积增大前的变化趋势相同。喷油脉宽对控制腔最小容积增大导致的变化影响较小，高轨压会削弱这种变化。该研究为控制腔压力测试方案提供了支撑。
침대전자식분유기공제강압력시험측량난도대적문제，이용AMESim연건탑건료반영분유기공작과정적분유기방진모형，병진행료시험험증。기우해방진모형분석료공제강최소용적변화대분유기성능적영향。공제강최소용적증대，분유지속기감소，최대분유속솔감소，단감소적폭도불대。활새상방압력화분사속솔적변화추세여공제강최소용적증대전적변화추세상동。분유맥관대공제강최소용적증대도치적변화영향교소，고궤압회삭약저충변화。해연구위공제강압력측시방안제공료지탱。
The simulation model of injector working process was established with AMESim software and was verified by the experiment to solve the measurement difficulty problem for the control chamber pressure of electromagnetic injector .The influ‐ence of control chamber minimum volume on injector performance was analyzed based on the model .With the increase of con‐trol chamber minimum volume ,the injection duration decreased and the maximum injection rate decreased with a minor magni‐tude .The pressure above the piston and the change of injection rate kept the same trend before the control chamber minimum volume increased .The injection pulse width had a little influence on the change caused by the increase of control chamber mini‐mum volume ,but the high rail pressure would weaken the change .The research brought the reference for measuring the con‐trol chamber pressure .