CA6DL柴油机性能预测研究  

Performance Prediction of CA6DL Diesel Engine

作　　者：王一江[1] 朱梅林[1] 王鑫泽[2] 邹长征[2] 高波[2] 

机构地区：[1]华中科技大学,湖北武汉430074 [2]一汽解放汽车有限公司无锡柴油机分公司,江苏无锡214026

出　　处：《现代车用动力》2004年第1期22-28,共7页Modern Vehicle Power

摘　　要：主要介绍了计算模型的选取 ,计算边界条件的确定以及相关的试验验证结果。在柴油机方案设计时 ,对涡轮增压系统进行了一维流动计算 ,优化了气门正时 ,并预选了增压器方案。采用已知的同类机型的放热率进行了缸内过程的计算。并对柴油机的性能模拟结果进行了讨论。样机试验后 ,再根据实测示功图来计算放热率 ,从而完善了计算。最终的试验结果表明 ,预测的性能曲线能够反映柴油机性能变化的基本趋势 ,对试验有指导意义。This paper detailed the choosing of calculation models, specification of the calculation boundary and relevant testing results. During design of the layout on diesel engine, we performed one-dimensional flow calculation for turbocharger systems, optimized the valve timing and pre-selected the turbocharger. Also, we calculated the process in the cylinder by the known heat release rate of the same kind of engines, and discussed the results of performance simulation. To perfect the calculation, we calculated the heat release rate with the actual diagram of work after testing . The results indicated that the performance curve could reflect the changing trend of the diesel engine performance, which is very significant to guide tests.

关 键 词：柴油机 性能预测 计算模型 涡轮增压 气门正时 

分 类 号：TK42[动力工程及工程热物理—动力机械及工程]