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21.发明申请SYSTEMS AND METHODS FOR DESULFATION OF AN OXIDATION CATALYST FOR DUAL FUEL ENGINES 审中-公开用于消除双燃料发动机的氧化催化剂的系统和方法公开(公告)号：US20160281619A1
公开(公告)日：2016-09-29
申请号：US15076213
申请日：2016-03-21
Applicant: Cummins Inc.
Inventor： Prachetas A. Kale , Timothy P. Lutz , Junhui Li , Ashok Kumar , Krishna Kamasamudram , C. Larry Bruner
CPC classification number: F01N3/0885 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01D2255/1021 , B01D2255/1023 , F01N3/103 , F01N3/106 , F01N3/2033 , F01N3/2066 , F01N9/00 , F01N13/0093 , F01N2260/04 , F01N2430/06 , F01N2560/023 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/1402 , F01N2900/1404 , F02D19/06 , F02D41/0025 , F02D41/024 , F02D41/027 , F02D41/405 , F02D2200/0818 , Y02T10/24 , Y02T10/26 , Y02T10/36 , Y02T10/44 , Y02T10/47
Abstract: A system and method are disclosed for desulfating an oxidation catalyst in an aftertreatment system of a multifuel internal combustion engine. The oxidation catalyst can be desulfated in response to one or more desulfation triggering events. The desulfation process includes providing hydrocarbons from one or all of the multiple fuel sources to an upstream oxidation catalyst. The hydrocarbons react with the exhaust gas within the upstream oxidation catalyst to deplete oxygen in the exhaust flow to thereby reduce the desulfation temperature of the oxidation catalyst while elevating a temperature of the exhaust gas to a desulfation temperature range.
Abstract translation: 公开了一种在多余内燃机的后处理系统中脱硫氧化催化剂的系统和方法。 响应于一个或多个脱硫触发事件，氧化催化剂可以脱硫。 脱硫方法包括将烃从多个燃料源中的一个或全部提供给上游氧化催化剂。 所述烃与上游氧化催化剂内的废气反应，以消耗排气中的氧气，从而降低氧化催化剂的脱硫温度，同时将废气的温度提高到脱硫温度范围。
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22.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
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Krishna Kamasamudram , Neal W. Currier , Ashok Kumar , Michael A. Smith
IPC: F01N3/20 , F02D41/02 , F01N3/08 , F01N3/10 , B01J38/06 , B01J38/08 , B01J38/56 , B01J38/04 , F01N11/00
CPC classification number: 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
Abstract: 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.
Abstract translation: 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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23.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
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Neal W. Currier , Timothy R. Frazier , Andrew S. Osburn , Krishna Kamasamudram
CPC classification number: B01J38/08 , B01D53/90 , B01D53/94 , B01D53/9409 , B01D2251/2062 , F01N3/2066 , F01N2610/02 , F01N2610/06 , F01N2610/10 , F01P2060/18 , Y02A50/2325 , Y02T10/24
Abstract: There is disclosed method and systems for charging a depleted or spent solid storage media with gaseous ammonia.
Abstract translation: 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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24.发明申请SYSTEM, METHOD, AND APPARATUS FOR TREATING A PLATINUM CONTAMINATED CATALYTIC COMPONENT 有权用于处理铂污染的催化组分的系统，方法和装置公开(公告)号：US20140241947A1
公开(公告)日：2014-08-28
申请号：US14273019
申请日：2014-05-08
Applicant: Cummins Inc.
Inventor： Xu Chen , Krishna Kamasamudram , Neil W. Currier , Aleksey Yezerets
IPC: B01D53/96
CPC classification number: B01D53/96 , B01J29/072 , B01J29/90 , B01J38/02
Abstract: An example method includes determining that a selective catalytic reduction (SCR) component having a zeolite-based catalyst is contaminated with platinum (Pt). The method further includes elevating the temperature of the SCR component to at least 600° C. in response to the determining the catalytic component is contaminated with Pt, and maintaining the elevated temperature of the catalytic component for a predetermined time period thereby restoring reduction activity of the catalyst.
Abstract translation: 示例性方法包括确定具有沸石基催化剂的选择性催化还原（SCR）组分被铂（Pt）污染。 该方法还包括响应于确定催化组分被Pt污染并将催化组分的升高温度保持预定时间段，将SCR组分的温度升高至至少600℃，由此恢复还原活性 催化剂。
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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
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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Patent Agency Ranking
公开(公告)号：US09724685B2
公开(公告)日：2017-08-08
申请号：US14288526
申请日：2014-05-28
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Neal W. Currier , Timothy R. Frazier , Andrew W. Osburn , Krishna Kamasamudram
CPC classification number: B01J38/08 , B01D53/90 , B01D53/94 , B01D53/9409 , B01D2251/2062 , F01N3/2066 , F01N2610/02 , F01N2610/06 , F01N2610/10 , F01P2060/18 , Y02A50/2325 , Y02T10/24
Abstract: There is disclosed method and systems for charging a depleted or spent solid storage media with gaseous ammonia.
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公开(公告)号：US20170191921A1
公开(公告)日：2017-07-06
申请号：US15462260
申请日：2017-03-17
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Z. Gerald Liu , Krishna Kamasamudram , Neal W. Currier
IPC: G01N15/08 , B01D46/42 , B01D46/00 , F01N11/00 , B01J23/22 , G01L19/08 , F01N3/20 , F01N3/021 , B01D53/94 , B01J35/04
CPC classification number: 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
Abstract: 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：US09657665B2
公开(公告)日：2017-05-23
申请号：US14189339
申请日：2014-02-25
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Krishna Kamasamudram , Neal W. Currier , Ashok Kumar , Michael A. Smith
IPC: F01N3/00 , F02D41/02 , F01N3/08 , F01N3/10 , B01J38/06 , B01J38/08 , B01J38/56 , B01J38/04 , F01N11/00 , F01N3/20
CPC classification number: 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
Abstract: 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.
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29.发明授权System and method of isolating component failures in an exhaust aftertreatment system 有权在排气后处理系统中分离组件故障的系统和方法公开(公告)号：US09422847B2
公开(公告)日：2016-08-23
申请号：US14586156
申请日：2014-12-30
Applicant: Cummins, Inc.
Inventor： Andrew W. Osburn , Mark N. Bays , Krishna Kamasamudram , Aleksey Yezerets
CPC classification number: F01N3/2006 , B01D53/9477 , B01D53/9495 , B01D2251/20 , B01D2255/904 , B01D2255/915 , F01N3/035 , F01N3/10 , F01N3/103 , F01N3/106 , F01N3/18 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N11/002 , F01N13/009 , F01N2550/02 , F01N2550/05 , F01N2610/02 , F01N2610/1493 , F01N2900/1602 , F01N2900/1621 , G01M15/102 , Y02T10/24 , Y02T10/47
Abstract: An apparatus includes a dosing module structured to suspend dosing in an exhaust aftertreatment system; a selective catalytic reduction (SCR) inlet NOx module structured to interpret SCR inlet NOx data and an SCR inlet temperature; a SCR outlet NOx module structured to interpret SCR outlet NOx data; and a system diagnostic module structured to determine an efficiency of a SCR system based on the SCR inlet and outlet NOx data over a range of SCR temperatures, wherein the system diagnostic module is further structured to determine a state of at least one of a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and the SCR system based on the SCR efficiency at an elevated SCR temperature range and the SCR efficiency at a relatively lower SCR temperature range relative to a high SCR efficiency threshold and a low SCR efficiency threshold.
Abstract translation: 一种装置包括：配置模块，其被配置为在排气后处理系统中暂停配量; 构造成用于解释SCR入口NOx数据和SCR入口温度的选择性催化还原（SCR）入口NOx模块; 构造成用于解释SCR出口NOx数据的SCR出口NOx模块; 以及系统诊断模块，其被构造成基于SCR温度范围内的SCR入口和出口NOx数据来确定SCR系统的效率，其中所述系统诊断模块进一步被构造为确定柴油氧化物中的至少一种的状态 催化剂（DOC），柴油微粒过滤器（DPF）和基于SCR升高的SCR温度范围内的SCR效率的SCR系统，以及相对于高SCR效率阈值和低SCR效率阈值的SCR相对较低的SCR温度范围内的SCR效率 效率阈值。
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30.发明申请SYSTEM, METHOD, AND APPARATUS FOR IMPROVED DESULFURIZATION OF AFTERTREATMENT COMPONENTS 有权改善后处理部件脱硫的系统，方法和装置公开(公告)号：US20150354424A1
公开(公告)日：2015-12-10
申请号：US14826704
申请日：2015-08-14
Applicant: Cummins Inc.
Inventor： Ashok Kumar , Michael A. Smith , Krishna Kamasamudram , Neal Currier , Aleksey Yezerets
CPC classification number: F01N3/2066 , F01N3/106 , F01N3/208 , F01N9/00 , F01N9/005 , F01N11/002 , F01N13/009 , F01N2570/04 , F01N2900/1402 , F01N2900/1612 , F02B37/22 , F02D41/005 , F02D43/04 , Y02T10/144 , Y02T10/24 , Y02T10/47
Abstract: Systems, methods, and apparatuses are provided for determining an SCR component sulfur value, determining whether the SCR component sulfur value exceeds a sulfur regeneration threshold and increasing an engine NO amount incident to an SCR catalyst in response to the SCR component sulfur value exceeding the sulfur regeneration threshold.
Abstract translation: 提供了用于确定SCR组分硫值的系统，方法和装置，确定SCR组分硫值是否超过硫再生阈值，并响应于SCR组分硫值超过硫而增加引入SCR催化剂的发动机NO量 再生阈值。
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