-
公开(公告)号：US20220154615A1
公开(公告)日：2022-05-19
申请号：US17592770
申请日：2022-02-04
Applicant: Cummins Inc.
Inventor： Michael J. Cunningham , Neal W. Currier , Saurabh Yashwant Joshi , Antonius Padua Nusawardhana , Aleksey Yezerets
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 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.
-
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.
-
公开(公告)号：US20210256684A1
公开(公告)日：2021-08-19
申请号：US17174884
申请日：2021-02-12
Applicant: Cummins Inc.
Inventor： Yujun Wang , Ben Wang , Carl Justin Kamp , Leigh Anne Rogoski , Rafael Ernesto Vasquez Lombardo , Michael J. Cunningham , Krishna Pradeep Chilumukuru , Neal W. Currier
Abstract: 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.
-
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.
-
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.
-
Patent Agency Ranking
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.
-
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.
-
28.发明申请SYSTEM AND METHOD FOR CONTROLLING AND DIAGNOSING PASSIVE STORAGE DEVICES IN EXHAUST AFTERTREATMENT SYSTEMS 审中-公开用于管理和诊断废物处理系统中的被动存储设备的系统和方法公开(公告)号：US20150377102A1
公开(公告)日：2015-12-31
申请号：US14753698
申请日：2015-06-29
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Michael J. Ruth , Neal W. Currier
CPC classification number: F01N3/0814 , F01N3/103 , F01N3/2033 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N11/007 , F01N2550/03 , F01N2610/02 , F01N2610/03 , F01N2900/1402 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: An internal combustion engine system includes an engine and an aftertreatment system that is connected to the engine to receive exhaust flow from the engine. The aftertreatment system includes a passive storage device for passively storing NOx and/or hydrocarbons produced by the engine during cold start and low temperature operating conditions, and a NOx reduction catalyst downstream of the passive storage device for receiving the NOx released from the passive storage device when temperature conditions in the exhaust flow and/or NOx reduction catalyst are above an effective temperature for NOx reduction. Diagnostics of the passive storage device and/or a sensor downstream of the passive storage device are contemplated that are based at least in part on an expected sensor output in response to a storage mode of operation or a release mode of operation of the passive storage device. Furthermore, reductant injection control is provided in response to a NOx amount released from the passive storage device.
Abstract translation: 内燃机系统包括发动机和后处理系统，后处理系统连接到发动机以接收来自发动机的排气流。 后处理系统包括被动存储装置，用于在冷启动和低温操作条件期间被动地存储由发动机产生的NOx和/或碳氢化合物，以及在被动存储装置下游的用于接收从被动存储装置释放的NOx的NOx还原催化剂 当排气流和/或NOx还原催化剂中的温度条件高于NOx还原的有效温度时。 无源存储设备和/或无源存储设备下游的传感器的诊断被设想为至少部分地基于响应于存储操作模式的预期传感器输出或被动存储设备的释放操作模式 。 此外，响应于从无源存储装置释放的NOx量提供还原剂注入控制。
-
公开(公告)号：US09181888B2
公开(公告)日：2015-11-10
申请号：US14064603
申请日：2013-10-28
Applicant: Cummins Inc.
Inventor： Cary Henry , Aleksey Yezerets , Neal W. Currier
CPC classification number: F02D41/0285 , B01D53/94 , B01D53/9418 , B01D53/944 , B01D53/949 , B01D2251/402 , B01D2251/404 , B01D2251/406 , B01D2251/602 , B01D2251/606 , F01N3/085 , F01N3/2066 , Y02T10/24
Abstract: Systems, apparatus, and methods for selectively, preferentially, and/or actively removing or trapping SO3 from un-oxidized sulfur constituents in an exhaust gas effluent produced by an internal combustion engine are disclosed. Also disclosed are embodiments for regenerating an SO3 trap.
Abstract translation: 公开了用于选择性地，优先地和/或主动地从由内燃机产生的废气流出物中除去或捕获来自未氧化的硫成分的SO 3的系统，装置和方法。 还公开了用于再生SO 3阱的实施方案。
-
公开(公告)号：US20150113949A1
公开(公告)日：2015-04-30
申请号：US14064603
申请日：2013-10-28
Applicant: Cummins Inc.
Inventor： Cary Henry , Aleksey Yezerets , Neal W. Currier
IPC: F01N3/10
CPC classification number: F02D41/0285 , B01D53/94 , B01D53/9418 , B01D53/944 , B01D53/949 , B01D2251/402 , B01D2251/404 , B01D2251/406 , B01D2251/602 , B01D2251/606 , F01N3/085 , F01N3/2066 , Y02T10/24
Abstract: Systems, apparatus, and methods for selectively, preferentially, and/or actively removing or trapping SO3 from un-oxidized sulfur constituents in an exhaust gas effluent produced by an internal combustion engine are disclosed. Also disclosed are embodiments for regenerating an SO3 trap.
Abstract translation: 公开了用于选择性地，优先地和/或主动地从由内燃机产生的废气流出物中除去或捕获来自未氧化的硫成分的SO 3的系统，装置和方法。 还公开了用于再生SO 3阱的实施方案。
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.026 seconds)
