CAJ | 학술논문

为了研究发动机功率对发动机传递给冷却液热量的影响,通过4A3L-T10发动机外接温控热交换器,对冷却液出口温度进行精确控制,得到相同冷却液出口温度下发动机不同功率冷却液传热量试验曲线。研究表明,冷却液的传热量随发动机功率升高而升高,传热量占燃烧热的比例随发动机功率升高而降低,比油耗随发动机功率升高先降低再升高,涡后排温随发动机功率升高而升高。
위료연구발동궤공솔대발동궤전체급냉각액열량적영향,통과4A3L-T10발동궤외접온공열교환기,대냉각액출구온도진행정학공제,득도상동냉각액출구온도하발동궤불동공솔냉각액전열량시험곡선。연구표명,냉각액적전열량수발동궤공솔승고이승고,전열량점연소열적비례수발동궤공솔승고이강저,비유모수발동궤공솔승고선강저재승고,와후배온수발동궤공솔승고이승고。
In order to study the effects of engine power on heat transfer from engine to lubricant,the paper applied an external temperature controlling heat exchanger to exactly control the lubricant＇s output temperature of the engine 4A3L-T10,then the testing curve of heat transfer of engine coolant under constant lubricant output temperature and different power was achieved.The research results indicate that with the raising of engine power,the lubricant＇s heat transfer rises,the proportion of heat transfer to total combustion heat decreases,the specific fuel consumption drops first and grows later,the emission temperature after turbo grows.