摘要:本文对柴油机Pre-turbo排气后处理技术进行了综述，介绍了该方面国外主要研究进展，讨论了Pre-turbo技术应用于柴油机排气后处理时的技术优势、存在的问题以及今后的发展方向。

关键词：柴油机；Pre-turbo；排气后处理；增压器

Abstract：The paper summarizes the Pre-turbo exhaust gas after-treatment technology for diesel engines, introduces the development of Pre-turbo technology in  foreign countries and discussed its advantages, current problems and the development direction in the future when the Pre-turbo technology is applied to the exhaust gas after-treatment for diesel engines.

Key Words: Diesel Engine; Pre-turbo; Exhaust Gas After-treatment; Turbocharger