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公开(公告)号：US11352923B2
公开(公告)日：2022-06-07
申请号：US16754623
申请日：2017-10-10
申请人： Cummins Inc.
发明人： Saurabh Y. Joshi , Neal W. Currier , Aleksey Yezerets , Ashok Kumar , Tyler A. Rash , Anand Srinivasan , Di Wang , Yadan Tang
摘要： A diagnostic system (10) is provided and includes a sensor (24) disposed downstream from an exhaust gas aftertreatment system. Also included in the diagnostic system (10) is a central diagnostic unit (35) configured to diagnose a condensation condition associated with the sensor (24) for mitigating a sensor failure due to water condensation on the sensor (24), the central diagnostic unit (35) performing the diagnosis on the condensation condition based on water storage and release information related to a component of the exhaust gas aftertreatment system. The sensor (24) is activated based on the water storage and release information.
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2.发明申请公开(公告)号：US20210324775A1
公开(公告)日：2021-10-21
申请号：US17235684
申请日：2021-04-20
申请人： Cummins Inc.
发明人： Di Wang , Richard J. Ancimer , Michael J. Cunningham , Aleksey Yezerets , Jinyong Luo , Yadan Tang , Yuhui Zha
摘要： Systems, apparatuses, and methods include predicting a sulfur exposure of one or more copper-zeolite catalysts deployed in an exhaust aftertreatment system; comparing the predicted sulfur exposure to a predefined sulfur exposure threshold; and responsive to the determination, heating the exhaust aftertreatment catalyst to a predefined heat treatment temperature for a predefined time period to desulfate the one or more copper-zeolite catalysts.
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公开(公告)号：US20180363528A1
公开(公告)日：2018-12-20
申请号：US16062266
申请日：2016-12-27
申请人： CUMMINS INC.
发明人： Jinyong Luo , Ashok Kumar , Krishna Kamasamudram , Neal W. Currier , Aleksey Yezerets , Yadan Tang , Michael J. Cunningham , Di Wang
摘要： A method of recovering selective catalytic reduction catalysts relates to metal-Zeolite based catalysts. A selective catalytic reduction catalyst service event where a metal-Zeolite based selective catalytic reduction catalyst of an exhaust aftertreatment system may perform below a threshold level of performance is determined. The selective catalytic reduction catalyst then exposed to a recovery fluid selected to facilitate movement of metal ions.
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公开(公告)号：US11220944B2
公开(公告)日：2022-01-11
申请号：US16062266
申请日：2016-12-27
申请人： CUMMINS INC.
发明人： Jinyong Luo , Ashok Kumar , Krishna Kamasamudram , Neal W. Currier , Aleksey Yezerets , Yadan Tang , Michael J. Cunningham , Di Wang
摘要： A method of recovering selective catalytic reduction catalysts relates to metal-Zeolite based catalysts. A selective catalytic reduction catalyst service event where a metal-Zeolite based selective catalytic reduction catalyst of an exhaust aftertreatment system may perform below a threshold level of performance is determined. The selective catalytic reduction catalyst then exposed to a recovery fluid selected to facilitate movement of metal ions.
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公开(公告)号：US20200264147A1
公开(公告)日：2020-08-20
申请号：US16754623
申请日：2017-10-10
申请人： Cummins Inc.
发明人： Saurabh Y. Joshi , Neal W. Currier , Aleksey Yezerets , Ashok Kumar , Tyler A. Rash , Anand Srinivasan , Di Want , Yadan Tang
摘要： A diagnostic system (10) is provided and includes a sensor (24) disposed downstream from an exhaust gas aftertreatment system. Also included in the diagnostic system (10) is a central diagnostic unit (35) configured to diagnose a condensation condition associated with the sensor (24) for mitigating a sensor failure due to water condensation on the sensor (24), the central diagnostic unit (35) performing the diagnosis on the condensation condition based on water storage and release information related to a component of the exhaust gas aftertreatment system. The sensor (24) is activated based on the water storage and release information.
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