摘要
给出了描述内燃机进气系统弹性腔边界的数学模型及其数值解法。实测结果表明,理论计算结果与实验数据吻合良好。
Anumerical model and its solutionon the boundary of elastic cham- ber of inlet system of I.C.Engine are presented.A computer program on this model is also given.The manifold pressure curves are examined by com- paring the calculated results with the experimental data.According to the calculated results,the following conclusions are drawn:1)The presented numerical model is correct;2)It is not effective to eliminate the pressure wave in a constant-pressure box with volume of 10Vby the traditional method for a pressure charging pipe.To eliminate the wave effectively, the box size must be larger;3)The inlet side wave of pipe can be elimina- ted by an elastic chamber with volume of 0.42V_.Therefore,the high volumetric efficiency is obtained.
