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    • 4. 发明申请
    • Exhaust system having mid-reducer NOx sensor
    • 具有中间还原剂NOx传感器的排气系统
    • US20080098725A1
    • 2008-05-01
    • US11589832
    • 2006-10-31
    • James Joshua DriscollMary L. KesseWade J. Robel
    • James Joshua DriscollMary L. KesseWade J. Robel
    • F01N3/00F01N3/10
    • F01N3/18B01D53/9431B01D53/9477B01D53/9495B01D2258/012F01N9/005F01N13/009F01N13/0097F01N2550/00Y02T10/47
    • An exhaust system for a combustion engine is disclosed. The exhaust system may have a housing connected to receive a flow of exhaust. The exhaust system may also have a first catalyst disposed within the housing to reduce the concentration of an exhaust constituent, and a second catalyst disposed within the housing downstream of the first catalyst to further reduce the concentration of the exhaust constituent. The exhaust system may further have a sensor disposed between the first and second catalysts to generate a signal indicative of the concentration of the exhaust constituent at the location between the first and second catalysts. The exhaust system may additionally have a controller in communication with the sensor to receive the signal. The controller may determine, based on the received signal, the concentration of the exhaust constituent at a location downstream of the second catalyst.
    • 公开了一种用于内燃机的排气系统。 排气系统可以具有连接以容纳排气流的壳体。 排气系统还可以具有设置在壳体内的第一催化剂以减少排气组分的浓度,以及第二催化剂,其设置在第一催化剂下游的壳体内,以进一步降低排气成分的浓度。 排气系统还可以具有设置在第一和第二催化剂之间的传感器,以产生指示在第一和第二催化剂之间的位置排气成分浓度的信号。 排气系统还可以具有与传感器通信的控制器以接收信号。 控制器可以基于所接收的信号确定在第二催化剂下游的位置处的排气成分的浓度。