排气系统尾管对发动机性能及排气噪声影响研究  

The Effect of Exhaust Tailpipe on Engine Performance and Tailpipe Noise

作　　者：赵骞[1] 顾灿松[1] 

机构地区：[1]中国汽车技术研究中心,天津300162

出　　处：《内燃机》2010年第6期5-8,11,共5页Internal Combustion Engines

摘　　要：以一台V型6缸汽油机为例,利用一维CFD发动机模拟软件GT-POWER建立了整体发动机模型(包括进排气系统),通过改变排气尾管直径、长度设计参数,研究了排气尾管长度、直径对发动机性能和排气噪声的影响,并总结了如何适当选取尾管的长度、直径设计参数,以满足发动机性能和排气噪声的要求。taking a V-type 6-cylinder gasoline engine for example, the whole engine model,including intake and exhaust system, is established by 1-D CFD software GT-POWER. Through the parameter change of tailpipe diameter and length, it is analyzed in this paper how the tailpipe diameter and length affect engine performance and tailpipe noise as well as summarized the guidelines how to choose suitable design parameter of tailpipe in order to optimize engine performance and exhaust noise.

关 键 词：排气系统尾管 GT—POWER 发动机背压 排气噪声 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]