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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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公开(公告)号：US09228468B2
公开(公告)日：2016-01-05
申请号：US14172259
申请日：2014-02-04
申请人： Cummins Inc.
CPC分类号： F01N3/208 , F01N3/0253 , F01N3/035 , F01N3/106 , F01N3/2006 , F01N3/2066 , F01N13/009 , F01N2260/04 , F01N2550/02 , F01N2560/02 , F01N2570/18 , F01N2610/00 , F01N2900/0601 , F01N2900/08 , F01N2900/1402 , F01N2900/1404 , F01N2900/1602 , F01N2900/1621 , F02D41/027 , F02D41/405 , F02D2200/0802 , Y02T10/24
摘要： Systems, methods and apparatus are disclosed for targeted regeneration of a catalyst device in an exhaust aftertreatment system of an internal combustion engine. The targeted regeneration can include interpreting, initiating, and/or completing a regeneration event for an SCR catalyst or other type of catalyst in response to a catalyst deactivation condition. A catalyst regeneration event includes at least one of exposing the catalyst to a sufficiently high temperature over a time period that removes contaminants from the catalyst and manipulation of the exhaust gas composition to initiate and/or accelerate removal of contaminants from the catalyst.
摘要翻译： 公开了用于内燃机的排气后处理系统中的催化剂装置的目标再生的系统，方法和装置。 目标再生可以包括解释，启动和/或完成SCR催化剂或其他类型的催化剂的响应于催化剂失活条件的再生事件。 催化剂再生事件包括在一段时间内将催化剂暴露于足够高的温度中的至少一种，其从催化剂中去除污染物并操纵废气组合物以引发和/或加速从催化剂中除去污染物。
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公开(公告)号：US11828218B2
公开(公告)日：2023-11-28
申请号：US17592770
申请日：2022-02-04
申请人： Cummins Inc.
发明人： Michael J. Cunningham , Neal W. Currier , Saurabh Yashwant Joshi , Antonius Padua Nusawardhana , Aleksey Yezerets
CPC分类号： F01N3/208 , F01N3/2006 , F01N9/005 , F01N3/022 , F01N3/023 , F01N3/0253 , F01N3/0821 , F01N3/101 , F01N9/002 , F01N2250/02 , F01N2330/06 , F01N2370/24 , F01N2510/068 , F01N2510/0682 , F01N2560/026 , F01N2570/14 , F01N2610/02 , F01N2610/146 , F01N2900/1402 , F01N2900/1818
摘要： Systems, apparatuses, and methods include a controller for an exhaust aftertreatment system including a SCR catalyst in exhaust gas-receiving communication with an engine and at least one reductant dosing system structured to provide reductant to the exhaust gas. The controller is structured to determine a concentration of one or more of NO and NO2 at or proximate an inlet of the exhaust aftertreatment system and based on a dynamic model of the SCR catalyst, information indicative of a concentration of NOx at or proximate an outlet of the exhaust aftertreatment system, and information indicative of an amount of stored reductant in the SCR catalyst. The controller is further structured to command the at least one reductant doser to increase, decrease, or maintain an amount of reductant provided to the exhaust gas based on the determined concentration of one or more of NO and NO2 in the exhaust gas.
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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：US10060845B2
公开(公告)日：2018-08-28
申请号：US15462260
申请日：2017-03-17
申请人： Cummins Inc.
IPC分类号： B01D53/56 , G01N15/08 , B01D53/94 , B01D46/42 , B01D46/00 , B01J35/04 , B01J23/22 , G01L19/08 , F01N3/20 , F01N3/021 , F01N11/00
CPC分类号： G01N15/0826 , B01D46/0086 , B01D46/42 , B01D53/9418 , B01D53/9436 , B01D53/944 , B01D53/9445 , B01D53/9477 , B01D53/9495 , B01D2255/2022 , B01D2255/2027 , B01D2255/20723 , B01D2255/2092 , B01D2255/904 , B01D2258/012 , B01J23/22 , B01J35/04 , F01N3/021 , F01N3/035 , F01N3/106 , F01N3/2066 , F01N3/208 , F01N3/36 , F01N11/002 , F01N13/009 , F01N2250/02 , F01N2370/02 , F01N2560/08 , F01N2610/02 , F01N2900/1616 , G01L19/08 , G01N2015/084 , Y02T10/24 , Y02T10/47
摘要： System and methods for reducing secondary emissions in an exhaust stream from an internal combustion engine are disclosed. The systems and methods include a filtration device positioned downstream from an SCR catalyst of an aftertreatment system disposed in the exhaust system. The filtration device can also be used for particulate filter diagnostics and for treatment of ammonia slip.
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公开(公告)号：US09517457B2
公开(公告)日：2016-12-13
申请号：US14067814
申请日：2013-10-30
申请人： Cummins Inc.
CPC分类号： B01J29/78 , B01D53/9409 , B01D53/9431 , B01D2251/206 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9032 , B01D2258/012 , B01J29/72 , F01N3/106 , F01N3/2066 , F01N13/009 , F01N13/0093 , F01N2510/0682 , F01N2570/145 , F01N2900/1404 , Y02A50/2344 , Y02C20/10 , Y02T10/24
摘要： Systems, apparatus and methods are disclosed for reducing the amount of nitrous oxide (N2O) produced in a selective catalytic reductant (SCR) catalyst in an exhaust aftertreatment system. The SCR catalysts are arranged to reduce the amount of N2O produced during NOx reduction while not adversely affecting NOx conversion.
摘要翻译： 公开了用于减少排气后处理系统中在选择性催化还原剂（SCR）催化剂中产生的一氧化二氮（N2O）的量的系统，装置和方法。 SCR催化剂被设置为减少NOx还原期间产生的N 2 O的量，而不会不利地影响NOx转化。
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7.发明授权公开(公告)号：US09080524B2
公开(公告)日：2015-07-14
申请号：US14189462
申请日：2014-02-25
申请人： Cummins Inc.
IPC分类号： F01N3/20 , F02D41/02 , F01N3/08 , F01N3/10 , B01J38/06 , B01J38/08 , B01J38/56 , B01J38/04 , F01N11/00
CPC分类号： F02D41/0235 , B01J38/04 , B01J38/06 , B01J38/08 , B01J38/56 , F01N3/0885 , F01N3/106 , F01N3/2033 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N2550/02 , F01N2610/02 , F01N2610/03 , F01N2610/146 , F01N2900/1404 , Y02T10/24
摘要： System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons.
摘要翻译： 公开了用于处理暴露于一定量硫的还原催化剂的系统，装置和方法。 还原催化剂的处理包括在还原催化剂的上游位置提供流体物流。 流体流包括温度和还原剂量，并且还原剂量包括一定量的尿素，氨或烃。
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公开(公告)号：US08920770B2
公开(公告)日：2014-12-30
申请号：US13860979
申请日：2013-04-11
申请人： Cummins Inc.
CPC分类号： F01N3/10 , C01B3/26 , C01B3/506 , C01B2203/048 , C01B2203/066 , F01N5/02 , F02B43/00 , F02G5/02 , Y02P20/129 , Y02T10/16 , Y02T10/166 , Y02T10/32
摘要： A technique is described including receiving a hydrocarbon stream, and heating the hydrocarbon stream with an exhaust steam from an internal combustion engine. This technique may include reacting the hydrocarbon stream catalytically to produce hydrogen and a modified hydrocarbon stream having a lower saturation state than the hydrocarbon stream, recovering energy from the hydrogen stream, and/or providing the modified hydrocarbon stream to a fuel supply for the internal combustion engine.
摘要翻译： 描述了一种技术，包括接收烃流，并用来自内燃机的排气蒸汽加热烃流。 该技术可以包括使烃流催化反应以产生氢气和具有比烃流更低饱和状态的改性烃流，从氢流回收能量，和/或将改性烃流提供给用于内燃的燃料供应 发动机。
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9.发明申请SOLID STORAGE MEDIA CHARGING WITH AMMONIA FOR USE IN SELECTIVE CATALYTIC REDUCTION 有权用于选择性催化还原的固体蓄电池充电公开(公告)号：US20140271389A1
公开(公告)日：2014-09-18
申请号：US14288526
申请日：2014-05-28
申请人： Cummins Inc.
发明人： Aleksey Yezerets , Neal W. Currier , Timothy R. Frazier , Andrew S. Osburn , Krishna Kamasamudram
CPC分类号： B01J38/08 , B01D53/90 , B01D53/94 , B01D53/9409 , B01D2251/2062 , F01N3/2066 , F01N2610/02 , F01N2610/06 , F01N2610/10 , F01P2060/18 , Y02A50/2325 , Y02T10/24
摘要： There is disclosed method and systems for charging a depleted or spent solid storage media with gaseous ammonia.
摘要翻译： 公开了用气态氨填充耗尽或废弃的固体储存介质的方法和系统。
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公开(公告)号：US11928806B2
公开(公告)日：2024-03-12
申请号：US17174884
申请日：2021-02-12
申请人： Cummins Inc.
发明人： Yujun Wang , Ben Wang , Carl Justin Kamp , Leigh Anne Rogoski , Rafael Ernesto Vasquez Lombardo , Michael J. Cunningham , Krishna Pradeep Chilumukuru , Neal W. Currier
CPC分类号： G06T7/0004 , G05B15/02 , G06T3/40 , G06T7/11 , G06T2207/10081 , G06T2207/20132
摘要： A computer system is structured to determine a density of particulate matter in a diesel particulate filter (DPF) sample. The computer system includes a processing circuit having a processor and a memory. The processing circuit is structured to generate a computed tomography (CT) scan-based image of the DPF sample; and, segment the CT scan-based image of the DPF sample into a plurality of regions. For at least one region from the plurality of regions, the processing circuit is structured to determine a density of a portion of the DPF sample corresponding to the at least one region of the CT scan-based image of the DPF sample and cause an electronic display of a user device to display the CT scan-based image including the at least one region and an indication of the density for the at least one region.
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