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    ENGINE OFF NH3 BASED SELECTIVE CATALYTIC REDUCTION NOX ADSORBER
    2.
    发明申请
    ENGINE OFF NH3 BASED SELECTIVE CATALYTIC REDUCTION NOX ADSORBER 有权
    发动机关闭NH3基选择性催化还原NOX吸附剂

    公开(公告)号：US20130074474A1

    公开(公告)日：2013-03-28

    申请号：US13242811

    申请日：2011-09-23

    申请人： Eugene V. Gonze ,  Michael J. Paratore, JR. ,  Chang H. Kim ,  Steven J. Schmieg

    发明人： Eugene V. Gonze ,  Michael J. Paratore, JR. ,  Chang H. Kim ,  Steven J. Schmieg

    IPC分类号： F01N3/18

    CPC分类号： F01N3/323 ,  F01N3/208 ,  F01N2610/146 ,  F01N2900/1622 ,  Y02T10/24

    摘要： An exhaust treatment system for an engine includes a selective catalyst reduction (SCR) treatment module that controls a valve and an air pump to deliver air to an SCR catalyst in response to the engine turning off. An SCR loading module controls the valve and the air pump to deliver air to an exhaust manifold and controls a dosing system to deliver a dosing agent upstream of the SCR catalyst when a temperature of the SCR catalyst is less than a temperature threshold and the SCR catalyst is not saturated with ammonia.

    摘要翻译： 用于发动机的废气处理系统包括选择性催化剂还原（SCR）处理模块，其响应于发动机关闭而控制阀和空气泵将空气输送到SCR催化剂。 SCR加载模块控制阀和空气泵将空气输送到排气歧管，并且当SCR催化剂的温度小于温度阈值并且SCR催化剂时控制计量系统以在SCR催化剂的上游输送计量剂 不饱和氨。

    SELECTIVE CATALYTIC REDUCTION (SCR) DEVICE CONTROL SYSTEM
    3.
    发明申请
    SELECTIVE CATALYTIC REDUCTION (SCR) DEVICE CONTROL SYSTEM 有权
    选择性催化还原（SCR）装置控制系统

    公开(公告)号：US20130061576A1

    公开(公告)日：2013-03-14

    申请号：US13228932

    申请日：2011-09-09

    申请人： Eugene V. Gonze ,  Michael J. Paratore, JR. ,  Chang H. Kim ,  Steven J. Schmieg

    发明人： Eugene V. Gonze ,  Michael J. Paratore, JR. ,  Chang H. Kim ,  Steven J. Schmieg

    IPC分类号： F01N9/00

    CPC分类号： F01N3/103 ,  F01N3/0231 ,  F01N3/106 ,  F01N3/2026 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0097 ,  Y02T10/24 ,  Y02T10/26

    摘要： An exhaust gas treatment system for an internal combustion engine is provided, including an exhaust gas conduit, an oxidation catalyst (“OC”) device, an electrically heated catalyst (“EHC”) device, a selective catalytic reduction (“SCR”) device, and a control module. The OC device is in fluid communication with the exhaust gas conduit. The OC device adsorbs hydrocarbons and is selectively activated to induce oxidation of the hydrocarbons in the exhaust gas. The EHC device is in fluid communication with the exhaust gas conduit and is configured to receive the exhaust gas. The EHC device is located within the OC device and is selectively activated to produce heat and induce further oxidation of the exhaust gas. The EHC device has an oxidation catalyst compound disposed thereon for converting nitrogen oxide (“NO”) to nitrogen dioxide (“NO2”).

    摘要翻译： 提供了一种用于内燃机的废气处理系统，包括废气导管，氧化催化剂（OC）装置，电加热催化剂（EHC）装置，选择性催化还原（SCR）装置和控制模块）。 OC装置与废气导管流体连通。 OC装置吸附碳氢化合物并选择性地活化以引起废气中的烃的氧化。 EHC装置与废气导管流体连通，并被配置成接收废气。 EHC装置位于OC装置内，并被选择性地激活以产生热量并引起废气的进一步氧化。 EHC装置具有氧化催化剂化合物，用于将氮氧化物（NO）转化为二氧化氮（NO2）。

    Method for monitoring exhaust gas aftertreatment devices
    4.
    发明授权
    Method for monitoring exhaust gas aftertreatment devices 有权
    废气后处理装置的监测方法

    公开(公告)号：US08387448B2

    公开(公告)日：2013-03-05

    申请号：US13008937

    申请日：2011-01-19

    申请人： Wei Li ,  David B. Brown ,  Chang H. Kim

    发明人： Wei Li ,  David B. Brown ,  Chang H. Kim

    IPC分类号： G01M15/10

    CPC分类号： G01M15/102

    摘要： A method for monitoring performance of a passive selective catalytic reduction system includes operating the internal combustion engine in a preconditioning mode. Subsequent to the preconditioning, an air/fuel excursion is introduced into the exhaust gas feedstream and a signal output from a sensor monitoring the exhaust gas feedstream in the selective catalytic reduction system during the air/fuel excursion is monitored. An operating effectiveness is determined for the selective catalytic reduction system correlated to the signal output from the sensor monitoring the exhaust gas feedstream.

    摘要翻译： 一种用于监测被动选择性催化还原系统的性能的方法包括以预处理模式操作内燃机。 在预处理之后，空气/燃料偏移被引入废气进料流中，并且监测在空气/燃料偏移期间在监测选择性催化还原系统中的废气进料流的传感器输出的信号。 确定与选择性催化还原系统相关的操作有效性，该系统与从监测废气进料流的传感器输出的信号相关。

    SYSTEM AND METHOD FOR DETERMINING AN AMMONIA GENERATION RATE IN A THREE-WAY CATALYST
    5.
    发明申请
    SYSTEM AND METHOD FOR DETERMINING AN AMMONIA GENERATION RATE IN A THREE-WAY CATALYST 有权
    用于确定三维催化剂中氨基酸产生速率的系统和方法

    公开(公告)号：US20120311998A1

    公开(公告)日：2012-12-13

    申请号：US13157669

    申请日：2011-06-10

    申请人： Min Sun ,  Kevin L. Perry ,  Chang H. Kim

    发明人： Min Sun ,  Kevin L. Perry ,  Chang H. Kim

    IPC分类号： F01N9/00 ,  F02D41/00

    CPC分类号： F01N3/2073 ,  F02D41/0235 ,  F02D41/1446 ,  F02D2041/1433 ,  F02D2041/1469 ,  Y02T10/22

    摘要： A system according to the principles of the present disclosure includes a rate determination module, a storage level determination module, and an air/fuel ratio control module. The rate determination module determines an ammonia generation rate in a three-way catalyst based on a reaction efficiency and a reactant level. The storage level determination module determines an ammonia storage level in a selective catalytic reduction (SCR) catalyst positioned downstream from the three-way catalyst based on the ammonia generation rate. The air/fuel ratio control module controls an air/fuel ratio of an engine based on the ammonia storage level.

    摘要翻译： 根据本公开的原理的系统包括速率确定模块，存储水平确定模块和空燃比控制模块。 速率确定模块基于反应效率和反应物水平来确定三元催化剂中的氨生成速率。 存储水平确定模块基于氨产生速率确定位于三元催化剂下游的选择性催化还原（SCR）催化剂中的氨储存水平。 空气/燃料比控制模块基于氨储存水平来控制发动机的空燃比。