METHOD OF DETERMINING IF AN OXIDATION CATALYST IS QUENCHED OR IS NOT QUENCHED
    3.
    发明申请
    METHOD OF DETERMINING IF AN OXIDATION CATALYST IS QUENCHED OR IS NOT QUENCHED 有权
    如果氧化催化剂被猝灭或未被检测,则确定方法

    公开(公告)号:US20120240553A1

    公开(公告)日:2012-09-27

    申请号:US13052355

    申请日:2011-03-21

    IPC分类号: F01N3/023

    摘要: A temperature of exhaust gas downstream of an oxidation catalyst is compared to a temperature of the exhaust gas upstream of the oxidation catalyst to determine if the downstream temperature is increasing over time or decreasing over time as hydrocarbons are injected into the flow of exhaust gas to regenerate a particulate filter. The oxidation catalyst is determined to be quenched when the temperature of the exhaust gas downstream of the oxidation catalyst remains constant or decreases over time as the rate at which the hydrocarbons are injected into the exhaust gas increases. The oxidation catalyst is determined to not be quenched when the temperature of the exhaust gas downstream of the oxidation catalyst increases over time as the rate at which the hydrocarbons are injected into the exhaust gas increases.

    摘要翻译: 将氧化催化剂下游的废气的温度与氧化催化剂上游的排气的温度进行比较,以确定随着时间的流逝,下游温度是否随着时间的推移而增加,或者随着时间的推移而降低,因为碳氢化合物被注入废气流中以再生 微粒过滤器。 当氧化催化剂下游的废气的温度保持恒定时,随着时间的推移,氧化催化剂被确定为淬火,因为烃被注入废气中的速率增加。 当氧化催化剂下游的废气的温度随着时间的推移而增加时,氧化催化剂被确定为不被淬火。

    Method of determining if an oxidation catalyst is quenched or is not quenched
    5.
    发明授权
    Method of determining if an oxidation catalyst is quenched or is not quenched 有权
    确定氧化催化剂是淬火还是不淬火的方法

    公开(公告)号:US08561393B2

    公开(公告)日:2013-10-22

    申请号:US13052355

    申请日:2011-03-21

    IPC分类号: F01N3/00

    摘要: A temperature of exhaust gas downstream of an oxidation catalyst is compared to a temperature of the exhaust gas upstream of the oxidation catalyst to determine if the downstream temperature is increasing over time or decreasing over time as hydrocarbons are injected into the flow of exhaust gas to regenerate a particulate filter. The oxidation catalyst is determined to be quenched when the temperature of the exhaust gas downstream of the oxidation catalyst remains constant or decreases over time as the rate at which the hydrocarbons are injected into the exhaust gas increases. The oxidation catalyst is determined to not be quenched when the temperature of the exhaust gas downstream of the oxidation catalyst increases over time as the rate at which the hydrocarbons are injected into the exhaust gas increases.

    摘要翻译: 将氧化催化剂下游的废气的温度与氧化催化剂上游的排气的温度进行比较,以确定随着时间的流逝,下游温度是否随着时间的推移而增加,或者随着时间的推移而降低,因为碳氢化合物被注入废气流中以再生 微粒过滤器。 当氧化催化剂下游的废气的温度保持恒定时,随着时间的推移,氧化催化剂被确定为淬火,因为烃被注入废气中的速率增加。 当氧化催化剂下游的废气的温度随着时间的推移而增加时,氧化催化剂被确定为不被淬火。