用波动法仿真程序改进汽油机进排气系统的研究

REDESIGNING THE INLET AND EXHAUST PIPE SYSTEM OF A GASOLINE ENGINE USING THE WAVE ACTION METHOD SIMULATION PROGRAM

本文介绍了用于微型计算机的内燃机波动法仿真程序ENGWA,以及前处理程序SDIP。利用ENGWA程序对492Q汽油机换气过程进行了仿真计算,结合实验研究,分析了该机进排气系统存在的问题,研究开发了新型进排气岐管。发动机台架实验表明,改进后的492Q汽油机性能较原机有全面改善。

The wave action method simulation program ENGWA, and the data preparation program SDIP are presented in the paper.The inlet and exhaust pipe system of a 492Q gasoline engine is calculated with the ENGWA program. Validated by experimental study and an analysis cf existing problemes, a new inlet and exhaust pipe system was developed. Experimental results show that performance of the engine with the pew pipe system was improved.