摘要
本文首先分析可变气门升程发动机的原理及特点,其后根据我司某自然吸气发动机的试验数据建立GT-POWER仿真模型进行并进行校核,然后基于可变气门升程的原理对该发动机模型进行了修改,并计算了不同工况下的最佳升程及气门正时。最终结果表明,在达到动力性能目标的前提下,中低转速的燃油消耗率较原机得到了较好改善,初步达到了改进的预期效果。
Firstly, the characteristics and principles of Variable Valve Lift have been analyzed, Secondly, a naturally aspirated engine simulation model with Haima Motor has been calibrated based on GT-POWER. Then this model have been modified according to the Variable Valve Lift principle. Finally, The results show that the VVL engine reach the target of its dynamic and economic performance. In low speed, the fuel consumption rate has been reduced well, and the output power which achieved the expected effect of the improvement basically.
出处
《内燃机与配件》
2017年第10期16-18,共3页
Internal Combustion Engine & Parts
基金
海口市重点科技计划资助项目(2015012)
