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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
Applicant: Cummins Inc.
Inventor： Saurabh Y. Joshi , Neal W. Currier , Aleksey Yezerets , Ashok Kumar , Tyler A. Rash , Anand Srinivasan , Di Wang , Yadan Tang
Abstract: 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：US20250116219A1
公开(公告)日：2025-04-10
申请号：US18983182
申请日：2024-12-16
Applicant: Cummins Inc.
Inventor： Di Wang , Richard J. Ancimer , Michael J. Cunningham , Aleksey Yezerets , Jinyong Luo , Yadan Tang , Yuhui Zha
Abstract: A method includes providing a zeolite material including a plurality of active sites. The plurality of active sites are bound to a plurality of hydrogen ions. The method includes exchanging at least a portion of the plurality of hydrogen ions with a plurality of copper ions, thereby forming a first amount of Z2Cu active sites that include copper (Cu2+) ions bound to the zeolite material and a first amount of ZCuOH active sites bound to copper hydroxide ions bound to the zeolite material. The method includes heating the zeolite material to a heat treatment temperature for a predefined time period to transform the zeolite material into a heat treated zeolite material. The heat treated zeolite material includes a second amount of Z2Cu active sites greater than the first amount of Z2Cu active sites and a second amount of ZCuOH active sites less than the first amount of ZCuOH active sites.
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Patent Agency Ranking
公开(公告)号：US11220944B2
公开(公告)日：2022-01-11
申请号：US16062266
申请日：2016-12-27
Applicant: CUMMINS INC.
Inventor： Jinyong Luo , Ashok Kumar , Krishna Kamasamudram , Neal W. Currier , Aleksey Yezerets , Yadan Tang , Michael J. Cunningham , Di Wang
Abstract: 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
Applicant: Cummins Inc.
Inventor： Saurabh Y. Joshi , Neal W. Currier , Aleksey Yezerets , Ashok Kumar , Tyler A. Rash , Anand Srinivasan , Di Want , Yadan Tang
Abstract: 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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5.发明授权公开(公告)号：US12168951B2
公开(公告)日：2024-12-17
申请号：US17235684
申请日：2021-04-20
Applicant: Cummins Inc.
Inventor： Di Wang , Richard J. Ancimer , Michael J. Cunningham , Aleksey Yezerets , Jinyong Luo , Yadan Tang , Yuhui Zha
Abstract: 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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6.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
Applicant: Cummins Inc.
Inventor： Di Wang , Richard J. Ancimer , Michael J. Cunningham , Aleksey Yezerets , Jinyong Luo , Yadan Tang , Yuhui Zha
Abstract: 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
Applicant: CUMMINS INC.
Inventor： Jinyong Luo , Ashok Kumar , Krishna Kamasamudram , Neal W. Currier , Aleksey Yezerets , Yadan Tang , Michael J. Cunningham , Di Wang
Abstract: 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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