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11.发明公开公开(公告)号：US20240077009A1
公开(公告)日：2024-03-07
申请号：US18493645
申请日：2023-10-24
Applicant: Cummins Inc.
Inventor： Michael J. Cunningham , Neal W. Currier , Saurabh Yashwant Joshi , Antonius Padua Nusawardhana , Aleksey Yezerets
CPC classification number: F01N3/208 , F01N3/2006 , F01N9/005 , F01N3/101 , F01N2560/026 , F01N2570/14 , F01N2610/02 , F01N2610/146 , F01N2900/1402 , F01N2900/1818
Abstract: A system includes 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 ratio of NO to NO2 at or proximate an inlet of the SCR catalyst. The controller is further structured to command the at least one reductant dosing system to increase, decrease, or maintain an amount of reductant provided to the exhaust gas based on comparing the ratio of NO to NO2 to a previous NO to NO2 ratio.
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公开(公告)号：US20150166357A1
公开(公告)日：2015-06-18
申请号：US14104657
申请日：2013-12-12
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Neal W. Currier
Abstract: A method and system that protects contained anhydrous ammonia, such as from theft or misuse. The contained anhydrous ammonia, for example is part of an ammonia storage and delivery system. The anhydrous ammonia is contained by its absorption into a solid absorbent material. A component is configured to interfere with unauthorized handling of the anhydrous ammonia, where the component is operatively engaged with the contained anhydrous ammonia.
Abstract translation: 保护含有无水氨的方法和系统，如盗窃或滥用。 所含的无水氨，例如是氨储存和输送系统的一部分。 无水氨通过其吸收到固体吸收材料中而被包含。 组件被配置为干扰未经处理的无水氨，其中组分与所含的无水氨可操作地接合。
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公开(公告)号：US20140237996A1
公开(公告)日：2014-08-28
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
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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14.发明申请SYSTEM AND APPARATUS FOR ENHANCING EXHAUST AFTERTREATMENT STARTUP EMISSIONS CONTROL 审中-公开用于增强排气启动排放控制的系统和装置公开(公告)号：US20140134054A1
公开(公告)日：2014-05-15
申请号：US14161153
申请日：2014-01-22
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Zheng Liu , Neal W. Currier , J. Stephen Wills
IPC: F01N3/20
CPC classification number: F01N3/208 , F01N11/002 , F01N2560/06 , F01N2610/02 , F01N2610/1453 , F01N2900/12 , F01N2900/1602 , Y02T10/24 , Y02T10/47
Abstract: An aftertreatment system including a method which provides a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an engine; determines that an ammonia pre-load condition for the SCR catalyst is present; determines a first amount of ammonia pre-load in response to the ammonia pre-load condition; injects an amount of ammonia or urea into the exhaust stream in response to the first amount of ammonia; and adsorbs a second amount of ammonia onto the SCR catalyst in response to injecting an amount of ammonia or urea, where the second amount of ammonia is either the injected amount of ammonia or an amount of ammonia resulting from hydrolysis from the injected amount of urea.
Abstract translation: 一种后处理系统，包括提供设置在发动机的排气流中的选择性催化还原（SCR）催化剂的方法; 确定存在用于SCR催化剂的氨预加载条件; 响应于氨预负荷状态确定氨预负载的第一量; 响应于第一量的氨将一定量的氨或尿素注入排气流中; 并且响应于注入一定量的氨或尿素而将第二量的氨吸附到SCR催化剂上，其中第二量的氨是从注射量的尿液中注入的氨的量或由水解产生的氨的量。
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公开(公告)号：US09726096B2
公开(公告)日：2017-08-08
申请号：US14747381
申请日：2015-06-23
Applicant: Cummins Inc.
Inventor： Yuetao Zhang , Neal W. Currier , Mahesh Madurai Kumar , Morgan M. Andreae
IPC: F01N3/00 , F02D41/02 , F01N3/035 , F01N3/10 , F01N3/20 , F01N9/00 , F01N13/00 , F01N11/00 , F02N11/08
CPC classification number: F02D41/024 , F01N3/035 , F01N3/106 , F01N3/2006 , F01N3/2026 , F01N3/2066 , F01N9/00 , F01N11/00 , F01N13/009 , F01N2560/06 , F01N2560/14 , F01N2900/104 , F01N2900/1404 , F01N2900/1602 , F02N11/0833 , F02N2200/026 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A system includes an internal combustion engine producing exhaust gases as a byproduct of operation and an aftertreatment system that treats the exhaust gases. The system further includes a controller that is structured to functionally execute operations to enhance the temperature of the aftertreatment system. The controller includes an operating condition monitoring module that interprets a temperature value at a position upstream of a catalyst positioned in the aftertreatment system. The controller further includes an operating condition management module that interprets a threshold temperature value, and an engine management module that provides an engine operation command to continue engine operation in response to the temperature value being at least equal to the threshold temperature value.
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Patent Agency Ranking
公开(公告)号：US20150285172A1
公开(公告)日：2015-10-08
申请号：US14747381
申请日：2015-06-23
Applicant: Cummins Inc.
Inventor： Yuetao Zhang , Neal W. Currier , Mahesh Madurai Kumar , Morgan M. Andreae
CPC classification number: F02D41/024 , F01N3/035 , F01N3/106 , F01N3/2006 , F01N3/2026 , F01N3/2066 , F01N9/00 , F01N11/00 , F01N13/009 , F01N2560/06 , F01N2560/14 , F01N2900/104 , F01N2900/1404 , F01N2900/1602 , F02N11/0833 , F02N2200/026 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A system includes an internal combustion engine producing exhaust gases as a byproduct of operation and an aftertreatment system that treats the exhaust gases. The system further includes a controller that is structured to functionally execute operations to enhance the temperature of the aftertreatment system. The controller includes an operating condition monitoring module that interprets a temperature value at a position upstream of a catalyst positioned in the aftertreatment system. The controller further includes an operating condition management module that interprets a threshold temperature value, and an engine management module that provides an engine operation command to continue engine operation in response to the temperature value being at least equal to the threshold temperature value.
Abstract translation: 一种系统包括产生作为操作副产物的废气的内燃机和用于处理废气的后处理系统。 该系统还包括控制器，其被构造成功能地执行用于增强后处理系统的温度的操作。 控制器包括操作状态监测模块，其解释位于后处理系统中的催化剂上游位置处的温度值。 所述控制器还包括解释阈值温度值的操作条件管理模块，以及响应于所述温度值至少等于所述阈值温度值而提供发动机操作命令以继续发动机操作的发动机管理模块。
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公开(公告)号：US20150218992A1
公开(公告)日：2015-08-06
申请号：US14172259
申请日：2014-02-04
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Tamas Szailer , Krishna Kamasamudram , Neal W. Currier , Richard J. Ancimer
IPC: F01N3/20
CPC classification number: 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
Abstract: 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.
Abstract translation: 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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18.发明授权System and apparatus for enhancing exhaust aftertreatment startup emissions control 有权用于增强废气后处理启动排放控制的系统和装置公开(公告)号：US09057309B2
公开(公告)日：2015-06-16
申请号：US14161153
申请日：2014-01-22
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Zheng Liu , Neal W. Currier , J. Stephen Wills
CPC classification number: F01N3/208 , F01N11/002 , F01N2560/06 , F01N2610/02 , F01N2610/1453 , F01N2900/12 , F01N2900/1602 , Y02T10/24 , Y02T10/47
Abstract: An aftertreatment system including a method which provides a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an engine; determines that an ammonia pre-load condition for the SCR catalyst is present; determines a first amount of ammonia pre-load in response to the ammonia pre-load condition; injects an amount of ammonia or urea into the exhaust stream in response to the first amount of ammonia; and adsorbs a second amount of ammonia onto the SCR catalyst in response to injecting an amount of ammonia or urea, where the second amount of ammonia is either the injected amount of ammonia or an amount of ammonia resulting from hydrolysis from the injected amount of urea.
Abstract translation: 一种后处理系统，包括提供设置在发动机的排气流中的选择性催化还原（SCR）催化剂的方法; 确定存在用于SCR催化剂的氨预加载条件; 响应于氨预负荷状态确定氨预负载的第一量; 响应于第一量的氨将一定量的氨或尿素注入排气流中; 并且响应于注入一定量的氨或尿素而将第二量的氨吸附到SCR催化剂上，其中第二量的氨是从注射量的尿液中注入的氨的量或由水解产生的氨的量。
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公开(公告)号：US20150113966A1
公开(公告)日：2015-04-30
申请号：US14067814
申请日：2013-10-30
Applicant: Cummins Inc.
Inventor： Krishna Kamasamudram , Neal W. Currier , Ashok Kumar
CPC classification number: 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
Abstract: 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.
Abstract translation: 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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20.发明申请公开(公告)号：US20140237995A1
公开(公告)日：2014-08-28
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
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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