废气再循环(EGR)冷却器命名和应用

[中文适用范围]： 本文档概述了如何以及为何使用 EGR 冷却器@定义了常用的术语@讨论了设计问题和权衡@并确定了常见的故障模式。将废气重新引入燃烧室只是柴油和汽油内燃机 (IC) 发动机排放控制策略的组成部分之一，有助于减少排气口氮氧化物 (NOx) 的排放。简要提及了减少排气口氮氧化物排放的其他方法@，但超出了本文件的范围。 [外文原描述]： This document provides an overview on how and why EGR coolers are utilized, defines commonly used nomenclature, discusses design issues and trade-offs, and identifies common failure modes. The reintroduction of selectively cooled exhaust gas into the combustion chamber is just one component of the emission control strategy for internal combustion (IC) engines, both diesel and gasoline, and is useful in reducing exhaust port emission of nitrogen oxides (NOx). Other means of reducing NOx exhaust port emissions are briefly mentioned, but beyond the scope of this document.Cross Reference: J1726_201507,J1994_201509,J922