摘要
提出了一种新的柴油机微粒捕集器再生用燃烧器的空气供给方式——从涡轮增压器出口处取气,并根据捕集器加热再生要求,设计了一套全流式燃烧器再生系统,对该系统的升温特性进行了试验研究。该系统由燃烧器与氧化催化器(DOC)两大部件组成,采用两级升温策略,能有效地对捕集器进行再生。研究结果表明,新的供气方式是可行的,且未对发动机动力性带来不利影响,所设计的燃烧器再生系统能在较大发动机工况范围内迅速提升排气温度至500℃以上。
A burner using the compressed air from the turbocharger was designed to heat the exhaust and regenerate the diesel particulate trap.The regeneration system consists of a burner and a DOC(diesel oxygen catalyst),which can regenerate the trap in filtration process.Exhaust is heated up by the burner and additional diesel fuel is injected before the DOC to enhance the HC oxygen process.Preliminary investigation on the system performance is conducted on an engine bench.The results show that this method is feasib...
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
2008年第6期538-542,共5页
Transactions of Csice
基金
国家863高科技资助项目(2006AA060303)
天津市自然基金资助项目(08JCYBJC13600)
关键词
柴油机
捕集器
燃烧器
再生
Diesel engine
Particulate trap
Burner
Regeneration
