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公开(公告)号：US20180223756A1
公开(公告)日：2018-08-09
申请号：US15427093
申请日：2017-02-08
Applicant: Caterpillar Inc.
Inventor： Wesley G. Benson , Colleen J. Anderson , Joseph K. Getz , Allen R. Bowman , William B. Marcum , Brandon T. Shull
CPC classification number: F01N9/005 , B60W50/14 , F01N3/021 , F01N3/0835 , F01N3/103 , F01N3/2066 , F01N9/00 , F01N2430/00 , F01N2560/023 , F01N2560/06 , F01N2560/07 , F01N2570/12 , F01N2900/0418 , F01N2900/0601 , F01N2900/08 , F01N2900/1402 , F01N2900/1404 , F01N2900/1411 , F02D41/027 , F02D41/1459 , F02D2041/026 , F02D2200/08 , Y02T10/24 , Y02T10/47
Abstract: A method for operating an aftertreatment system of an engine is disclosed. The method includes measuring, using one or more sensors, at least one operating parameter of the engine system; estimating, by a controller, a mass of hydrocarbon retained by an aftertreatment component using the at least one operating parameter; determining, by the controller, a percent load of hydrocarbon using the mass of hydrocarbon; comparing, by the controller, the percent load to a predetermined hydrocarbon load threshold; and providing at least one alert indicating a need to initiate a stepwise increase in an engine power to one or more predetermined engine speeds for one or more predetermined durations, if the percent load exceeds the predetermined hydrocarbon load threshold.
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2.发明授权公开(公告)号：US09677440B2
公开(公告)日：2017-06-13
申请号：US14671046
申请日：2015-03-27
Applicant: Caterpillar Inc.
Inventor： Amy E. Fischer , Matthew E. Leustek , Justin W. McMenamy , Brandon T. Shull , Ronald G. Silver
CPC classification number: F01N3/035 , F01N3/10 , F01N3/103 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N2240/40 , F01N2610/1453 , Y02T10/24
Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.
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3.发明授权Aftertreatment system incorporating hydrolysis catalyst with particulate filtration and SCR 有权含有颗粒过滤和SCR的水解催化剂的后处理系统公开(公告)号：US09016050B2
公开(公告)日：2015-04-28
申请号：US13719404
申请日：2012-12-19
Applicant: Caterpillar Inc.
Inventor： Amy E. Fischer , Matthew E. Leustek , Justin W. McMenamy , Brandon T. Shull , Ronald G. Silver
CPC classification number: F01N3/035 , F01N3/10 , F01N3/103 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N2240/40 , F01N2610/1453 , Y02T10/24
Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.
Abstract translation: 公开了后处理系统。 后处理系统可以包括设置在与第一罐的下游端相邻的第一罐内的水解催化剂和设置成将还原剂注入到水解催化剂上游的第一罐中的喷嘴。 可以在还原剂存在下催化促进NO x还原的颗粒收集装置可以被设置在与其上游端相邻的后处理系统的第二罐内。 排气导管可以从第一罐的下游端延伸到第二罐的上游端。 排气管道内的内部容积可以从与水解催化剂相邻并且与水解催化剂流体连通的上游端延伸到与颗粒收集装置相邻并与其流体连通的下游端。
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4.发明申请Aftertreatment System Incorporating Hydrolysis Catalyst with Particulate Filtration and SCR 有权后处理系统结合水解催化剂与颗粒过滤和SCR公开(公告)号：US20150198069A1
公开(公告)日：2015-07-16
申请号：US14671046
申请日：2015-03-27
Applicant: Caterpillar Inc.
Inventor： Amy E. Fischer , Matthew E. Leustek , Justin W. McMenamy , Brandon T. Shull , Ronald G. Silver
CPC classification number: F01N3/035 , F01N3/10 , F01N3/103 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N2240/40 , F01N2610/1453 , Y02T10/24
Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.
Abstract translation: 公开了后处理系统。 后处理系统可以包括设置在与第一罐的下游端相邻的第一罐内的水解催化剂和设置成将还原剂注入到水解催化剂上游的第一罐中的喷嘴。 可以在还原剂存在下催化促进NO x还原的颗粒收集装置可以被设置在与其上游端相邻的后处理系统的第二罐内。 排气导管可以从第一罐的下游端延伸到第二罐的上游端。 排气管道内的内部容积可以从与水解催化剂相邻并且与水解催化剂流体连通的上游端延伸到与颗粒收集装置相邻并与其流体连通的下游端。
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