EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    8.
    发明授权
    EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化装置

    公开(公告)号:EP2184454B1

    公开(公告)日:2011-12-28

    申请号:EP08778262.9

    申请日:2008-07-11

    摘要: An exhaust purification apparatus for internal combustion engine having a particulate filter disposed downstream of a NOx occlusion reduction catalyst unit and having an S trapping unit disposed upstream of the NOx occlusion reduction catalyst unit. In the apparatus, there is provided first fuel supply means for supplying any additional fuel for regeneration of the particulate filter into the cylinder or exhaust system upstream of the S trapping unit. The additional fuel supplied from the first fuel supply means is regulated to the amount for inhibition of any release of SOx from the S trapping unit. In the apparatus, there is further provided second fuel supply means disposed in the exhaust system between the NOx occlusion reduction catalyst unit and the particulate filter in order to compensate for any deficiency for regeneration of the additional fuel supplied by the first fuel supply means.

    摘要翻译: 一种内燃机的排气净化装置,其特征在于,在NOx吸留还原型催化剂装置的下游配置颗粒过滤器,在NOx吸留还原型催化剂装置的上游侧具有S捕集装置。 在该设备中,提供了第一燃料供应装置,用于将用于颗粒过滤器再生的任何额外燃料供应到S捕集单元上游的气缸或排气系统中。 从第一燃料供应装置供应的附加燃料被调节到抑制从S捕集单元释放SOx的量。 在该装置中,还设置了第二燃料供应装置,该第二燃料供应装置设置在NOx吸留还原催化剂单元和颗粒过滤器之间的排气系统中,以补偿由第​​一燃料供应装置供应的附加燃料再生的任何不足。