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公开(公告)号：US11148129B2
公开(公告)日：2021-10-19
申请号：US16071395
申请日：2017-01-20
发明人： Arvind V. Harinath , Behnam Bahrami
摘要： An aftertreatment system comprises an aftertreatment component. An outlet sensor is positioned downstream of the aftertreatment component. A controller is communicatively coupled to the outlet sensor. The controller is configured to interpret an outlet signal from the outlet sensor. The outlet signal is indicative of a performance of the aftertreatment component. The controller determines if the aftertreatment component has deactivated. In response to determining that the aftertreatment component has deactivated, the controller provides a catalyst active material to at least a portion of the aftertreatment component. The catalyst active material coats at least the portion of the aftertreatment component so as to remanufacture the aftertreatment component.
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公开(公告)号：US10364725B2
公开(公告)日：2019-07-30
申请号：US15518162
申请日：2014-10-16
发明人： Yi Liu , Arvind V. Harinath , Arpad Somogyvari
摘要： Systems and methods for an aftertreatment system configured for use with a dual-fuel engine system are described. The method comprises determining an operating mode of the dual-fuel engine. Upon determining that the dual-fuel engine is operating in a dual-fuel mode or a natural gas mode, the dual-fuel engine operates in a stoichiometric operating condition, and the exhaust is received into a three-way catalyst communicatively connected to a selective catalytic reduction catalyst. Upon determining that the dual-fuel engine is not operating in the dual-fuel mode or the natural gas mode, the engine operates in a lean operating condition.
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公开(公告)号：US10099212B2
公开(公告)日：2018-10-16
申请号：US15458415
申请日：2017-03-14
摘要： An oxidation catalyst may include hydrocarbon storage material. One implementation relates to a diesel oxidation catalyst that includes a catalyst having a front zone and a rear zone and a gradient of hydrocarbon storage material on the catalyst extending from the front zone to the rear zone. The gradient of hydrocarbon storage material, may comprise a linear gradient, a step gradient, a parabolic gradient, a logarithmic gradient, or other forms thereof.
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公开(公告)号：USD809577S1
公开(公告)日：2018-02-06
申请号：US29600848
申请日：2017-04-17
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公开(公告)号：US20210170388A1
公开(公告)日：2021-06-10
申请号：US16071395
申请日：2017-01-20
发明人： Arvind V. Harinath , Behnam Bahrami
摘要： An aftertreatment system comprises an aftertreatment component. An outlet sensor is positioned downstream of the aftertreatment component. A controller is communicatively coupled to the outlet sensor. The controller is configured to interpret an outlet signal from the outlet sensor. The outlet signal is indicative of a performance of the aftertreatment component. The controller determines if the aftertreatment component has deactivated. In response to determining that the aftertreatment component has deactivated, the controller provides a catalyst active material to at least a portion of the aftertreatment component. The catalyst active material coats at least the portion of the aftertreatment component so as to remanufacture the aftertreatment component.
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6.发明授权公开(公告)号：US10145343B2
公开(公告)日：2018-12-04
申请号：US14711505
申请日：2015-05-13
发明人： Yi Liu , Justin Kruer , Rahul B. Kallurwar , Arvind V. Harinath , Zheng Liu
摘要： A timing-based method for regenerating a DOC included in an aftertreatment system fluidly coupled to a dual-fuel engine comprises performing at least one of the following: a temperature of the DOC is varied while flowing a mixed exhaust gas, which comprises a mixture of a diesel-only exhaust gas and a natural gas exhaust gas, generated by the dual-fuel engine through the DOC; alternately the method includes flowing (a) the mixed exhaust gas generated by the dual-fuel engine and (b) a diesel-only exhaust gas generated by the dual-fuel engine through the DOC.
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公开(公告)号：US20170234183A1
公开(公告)日：2017-08-17
申请号：US15432394
申请日：2017-02-14
CPC分类号： F01N3/0814 , F01N3/035 , F01N3/085 , F01N3/2066 , F01N13/009 , F01N13/0093 , F01N2560/026 , F01N2560/027 , F01N2570/04 , F01N2610/02 , Y02T10/24
摘要： An aftertreatment system comprises a SCR system including a catalyst formulated to decompose constituents of an exhaust gas passing therethrough. A filter is positioned upstream of the SCR system. The filter comprises a sulfur suppressing compound formulated to reduce an amount of SOx gases included in the exhaust gas flowing through the aftertreatment system. In particular embodiments, the filter comprises a filter housing and a filter element positioned within the filter housing. The filter element comprises the sulfur suppressing compound.
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公开(公告)号：USD794100S1
公开(公告)日：2017-08-08
申请号：US29540794
申请日：2015-09-28
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9.发明申请SYSTEM AND METHOD FOR CREATING CATALYST OBD LIMIT PARTS FOR EXHAUST AFTERTREATMENT APPLICATIONS 有权用于创建用于排除后处理应用的催化剂限制部件的系统和方法公开(公告)号：US20160084136A1
公开(公告)日：2016-03-24
申请号：US14494312
申请日：2014-09-23
发明人： Qiang Liu , Yi Liu , Zheng Liu , Arvind V. Harinath , Huiling Li
CPC分类号： F01N11/00 , B01D53/94 , B01J29/068 , B01J29/76 , B01J35/023 , B01J35/04 , B01J37/0215 , B01J37/08 , F01N2510/068 , F01N2550/02 , G01N31/10 , Y02T10/47
摘要： Catalyst diagnostic limit parts and methods for making catalyst diagnostic limit parts are disclosed. An exemplary catalyst diagnostic limit part includes a substrate and a washcoat coating the substrate. The washcoat includes an active catalyst and an inactive catalyst at a predetermined ratio of active catalyst to inactive catalyst so as to control the performance of the catalyst diagnostic limit part.
摘要翻译： 公开了用于制备催化剂诊断极限部件的催化剂诊断极限部件和方法。 示例性的催化剂诊断极限部分包括基材和涂覆基材的修补基面涂层。 修补基面涂层包括活性催化剂和活性催化剂与惰性催化剂的预定比例的无活性催化剂，以便控制催化剂诊断限制部分的性能。
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公开(公告)号：US10989096B2
公开(公告)日：2021-04-27
申请号：US16525114
申请日：2019-07-29
发明人： Yi Liu , Qiang Liu , Arvind V. Harinath , Changsheng C. Su , Behnam Bahrami , A. Carl McDonald , Stephen M. Holl
摘要： An aftertreatment system includes a filtration and reduction unit. The filtration and reduction unit comprises a housing defining an internal volume. A filter is disposed in the internal volume and is configured to substantially remove particulates from the exhaust gas. A selective catalytic reduction system is disposed in the internal volume downstream of the filter and is configured to selectively reduce a portion of the exhaust gas. A first catalyst is formulated to oxidize at least a portion of the exhaust gas. An intake pipe is disposed upstream of the filtration and reduction unit and configured to communicate the exhaust gas o the filtration and reduction unit. The first catalyst is disposed in the intake pipe. An exhaust pipe is disposed downstream of the filtration and reduction unit.
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