汽油机冷起动HC排放的机理与控制策略  

Analysis of HC Emissions during Cold-start of SI Engines

作　　者：栗工[1] 李理光[2] 

机构地区：[1]上海交通大学机械与动力工程学院 [2]同济大学汽车学院

出　　处：《农业机械学报》2006年第6期151-154,158,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(项目编号:50376034)

摘　　要：为适应欧以上汽车法规,对点燃式发动机冷起动工况下HC排放的研究已经成为目前发动机领域的热点之一。为了更好地控制冷起动排放,合理组织燃烧过程,要求对点燃式发动机冷起动HC排放特性有更深入的了解。本文基于国内外研究进展,介绍了冷起动工况下催化器前发动机HC排放的特点,影响排放的重要因素,以及形成的机理,特别是进一步降低和控制冷起动HC排放的发展方向。Reduction of HC emissions at cold-start is a challenge in order to meet the future stringent regulations of ultra low emission vehicles （ULEV）. It is becoming a hot research area for automotive SI engine. Successful cold-start with low HC emissions requires a basic understanding of the combustion processes at cold-start of SI engines. A review of HC emissions at cold-start based on the literatures and new researches was presented. The factors which influenced HC emissions at cold-start and the future trends of researches were given.

关 键 词：点燃式发动机 冷起动 HC排放 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程]