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公开(公告)号：WO2017117103A1
公开(公告)日：2017-07-06
申请号：PCT/US2016/068672
申请日：2016-12-27
Applicant: CUMMINS INC.
Inventor： LUO, Jinyong , KUMAR, Ashok , KAMASAMUDRAM, Krishna , CURRIER, Neal W. , YEZERETS, Aleksey , TANG, Yadan , CUNNINGHAM, Michael J. , WANG, Di
CPC classification number: B01J23/70 , B01J23/72 , F01N3/2006 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N2260/04 , F01N2370/04 , F01N2550/02 , F01N2610/02 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47
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.
Abstract translation: 回收选择性催化还原催化剂的方法涉及金属 - 沸石基催化剂。 确定排气后处理系统的基于金属沸石的选择性催化还原催化剂可以在阈值水平以下执行的选择性催化还原催化剂服务事件。 然后将选择性催化还原催化剂暴露于选择用于促进金属离子移动的回收流体。
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2.发明申请
公开(公告)号：WO2021026317A1
公开(公告)日：2021-02-11
申请号：PCT/US2020/045143
申请日：2020-08-06
Applicant: CUMMINS INC.
Inventor： CUNNINGHAM, Michael J. , CURRIER, Neal W. , JOSHI, Saurabh Yashwant , NUSAWARDHANA, Antonius Padua , YEZERETS, Aleksey
Abstract: 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 NO 2 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 NO 2 in the exhaust gas.
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Patent Agency Ranking3.发明公开SYSTEM AND METHOD FOR INHIBITING UNCONTROLLED REGENERATION OF A PARTICULATE FILTER FOR AN INTERNAL COMBUSTION ENGINE 有权的系统和方法用于防止微粒的VIOLENT再生用于内燃机
公开(公告)号：EP2102459A2
公开(公告)日：2009-09-23
申请号：EP07855211.4
申请日：2007-12-17
Applicant: Cummins, Inc.
Inventor： SURESH, S. Arvind , CURRIER, Neal W. , YEZERETS, Aleksey , STROIA, Bradlee J.
IPC: F01N3/00 , F01N3/023 , F01N3/035 , F01N11/00 , G01M15/10 , G01M15/04 , F01L1/34 , F02D41/04 , F02B47/08
CPC classification number: F02D41/0002 , F01L1/34 , F01L2800/00 , F01L2800/10 , F01N3/035 , F01N3/0842 , F01N3/106 , F01N9/002 , F01N13/009 , F01N2240/36 , F01N2250/02 , F01N2430/085 , F01N2430/10 , F02D41/0052 , F02D41/0055 , F02D41/029 , F02D2041/001 , Y02T10/42 , Y02T10/47
Abstract: Inhibiting uncontrolled regeneration of a particulate filter fluidly coupled to an exhaust manifold of an internal combustion engine may comprise reducing an oxygen concentration of exhaust gas supplied to the particulate filter if active regeneration of the particulate filter is in progress and rotational speed of the engine speed thereafter drops to an idle speed range from an elevated rotational speed that is greater than the idle speed range. Reducing the oxygen concentration of the exhaust gas supplied to the particulate filter may include any one or combination of reducing the oxygen concentration of intake air supplied to the intake manifold, reducing the air portion of the air-to-fuel ratio of the air-fuel mixture supplied to the engine and removing oxygen from the exhaust gas supplied to the particulate filter.
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4.发明公开
公开(公告)号：EP4010572A1
公开(公告)日：2022-06-15
申请号：EP20850769.9
申请日：2020-08-06
Applicant: Cummins, Inc.
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5.发明申请SOLID STORAGE MEDIA CHARGING WITH AMMONIA FOR USE IN SELECTIVE CATALYTIC REDUCTION 审中-公开用于选择性催化还原的固体蓄电池充电
公开(公告)号：WO2013082078A1
公开(公告)日：2013-06-06
申请号：PCT/US2012/066748
申请日：2012-11-28
Applicant: CUMMINS INC.
Inventor： YEZERETS, Aleksey , CURRIER, Neal W. , FRAZIER, Timothy R. , OSBURN, Andrew W. , KAMASAMUDRAM, Krishna
IPC: B01D53/90
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: One embodiment of the present invention is a method for charging a depleted or spent solid storage media with ammonia. Other embodiments include unique methods, systems, devices, and apparatus involving charging spent solid storage media with ammonia. Further embodiments, forms, objects, aspects, benefits, and advantages of the present invention shall become apparent from the figure and description provided herewith.
Abstract translation: 本发明的一个实施方案是用氨填充耗尽或废弃的固体储存介质的方法。 其它实施方案包括独特的方法，系统，装置和包括用氨填充废固体储存介质的装置。 本发明的其他实施例，形式，目的，方面，益处和优点将从本文提供的附图和描述中变得显而易见。
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公开(公告)号：EP3682097A1
公开(公告)日：2020-07-22
申请号：EP17928486.4
申请日：2017-10-10
Applicant: Cummins Inc.
Inventor： JOSHI, Saurabh Y. , CURRIER, Neal W. , YEZERETS, Aleksey , KUMAR, Ashok , RASH, Tyler A. , SRINIVASAN, Anand , WANG, Di , TANG, Yadan
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7.发明授权SYSTEM AND METHOD FOR INHIBITING UNCONTROLLED REGENERATION OF A PARTICULATE FILTER FOR AN INTERNAL COMBUSTION ENGINE 有权用于抑制内燃机的颗粒过滤器的非控制再生的系统和方法
公开(公告)号：EP2102459B1
公开(公告)日：2017-11-22
申请号：EP07855211.4
申请日：2007-12-17
Applicant: Cummins Inc.
Inventor： SURESH, S. Arvind , CURRIER, Neal W. , YEZERETS, Aleksey , STROIA, Bradlee J.
IPC: F01N3/00 , F01N3/023 , F01N3/035 , F01N11/00 , G01M15/10 , G01M15/04 , F01L1/34 , F02D41/04 , F02B47/08 , F01N3/08 , F01N3/10 , F02D41/02 , F01N9/00 , F02D41/00 , F01N13/00
CPC classification number: F02D41/0002 , F01L1/34 , F01L2800/00 , F01L2800/10 , F01N3/035 , F01N3/0842 , F01N3/106 , F01N9/002 , F01N13/009 , F01N2240/36 , F01N2250/02 , F01N2430/085 , F01N2430/10 , F02D41/0052 , F02D41/0055 , F02D41/029 , F02D2041/001 , Y02T10/42 , Y02T10/47
Abstract: Inhibiting uncontrolled regeneration of a particulate filter fluidly coupled to an exhaust manifold of an internal combustion engine may comprise reducing an oxygen concentration of exhaust gas supplied to the particulate filter if active regeneration of the particulate filter is in progress and rotational speed of the engine speed thereafter drops to an idle speed range from an elevated rotational speed that is greater than the idle speed range. Reducing the oxygen concentration of the exhaust gas supplied to the particulate filter may include any one or combination of reducing the oxygen concentration of intake air supplied to the intake manifold, reducing the air portion of the air-to-fuel ratio of the air-fuel mixture supplied to the engine and removing oxygen from the exhaust gas supplied to the particulate filter.
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