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公开(公告)号:US06792751B2
公开(公告)日:2004-09-21
申请号:US10269043
申请日:2002-10-11
IPC分类号: F01N300
CPC分类号: F01N3/0842 , F02B37/00 , F02D41/0275 , F02D41/1446 , F02D41/187 , F02D41/3809 , F02D41/405 , F02D2200/602 , Y02T10/24 , Y02T10/44
摘要: In order to improve performance of NOx reduction, an additional fuel injection immediately after a main fuel injection is performed. By such additional fuel injection, hydrogen (H2) is supplied to a NOx trap catalyst. And in order to prevent engine output torque from varying by the additional fuel injection, the main fuel injection is controlled by whether the additional fuel injection is performed.
摘要翻译: 为了提高NOx还原的性能,在主燃料喷射之后立即进行附加的燃料喷射。 通过这种额外的燃料喷射,将氢气(H 2)供应到NOx捕集催化剂。 并且为了防止发动机输出扭矩通过附加燃料喷射而变化,通过是否执行附加燃料喷射来控制主燃料喷射。