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公开(公告)号：WO2014133947A1
公开(公告)日：2014-09-04
申请号：PCT/US2014/017953
申请日：2014-02-24
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： ANDERSON, Matthew , SOMOGYVARI, Arpad
CPC classification number: B01D53/86 , B01D2255/9025 , B01J21/02 , B01J31/06 , B01J35/0006 , B01J35/02 , B01J37/0009 , B01J37/0217 , B01J2231/005 , B01J2531/002 , B01J2531/008 , B32B3/28 , B32B15/08 , F01N3/0211 , F01N3/2842 , F01N3/2853 , F01N3/2875 , F01N2330/20 , Y02T10/20
Abstract: An aftertreatment component for use in an exhaust aftertreatment system. The aftertreatment component comprises an aftertreatment substrate and a compressible material. The compressible material may be formed from a plastic thermoset, a rubberized material, or a metal foil which permits for the selective expansion of the substrate within the compressible material, while also reducing cost and manufacturing complexity. In various embodiments, the aftertreatment substrate and the compressible materials may be formed separately and coupled to each other, or they may be formed concurrently via coextrusion.
Abstract translation: 用于排气后处理系统的后处理组件。 后处理组件包括后处理基板和可压缩材料。 可压缩材料可以由塑料热固性材料，橡胶材料或允许在可压缩材料内选择性膨胀基材的金属箔形成，同时还降低成本和制造复杂性。 在各种实施例中，后处理衬底和可压缩材料可以分开形成并且彼此耦合，或者它们可以通过共挤出同时形成。
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公开(公告)号：WO2023028002A1
公开(公告)日：2023-03-02
申请号：PCT/US2022/041073
申请日：2022-08-22
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： RICHARDSON, Dylan, J. , AGRAWAL, Monika , ALONZO, Jim, L. , PATIL, Amol, Yuvraj
Abstract: An exhaust gas aftertreatment system includes an outlet housing body, an outlet housing fitting, an outlet sampling system, and an outlet sensor. The outlet sampling system includes a sampling bowl and a sampling ring. The sampling bowl is coupled to the outlet housing body and extends away from the outlet housing body so as to define a sampling bowl cavity between the sampling bowl and the outlet housing body. The sampling ring is coupled to the sampling bowl and separated from the outlet housing body by the sampling bowl. The sampling ring is coupled to the outlet housing fitting and defines a sampling ring cavity. The sampling ring includes a plurality of sampling ring inlet apertures and a connector. The sampling ring inlet apertures are each configured to receive exhaust gas from within the outlet housing body and provide the exhaust gas to the sampling ring cavity.
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公开(公告)号：WO2022178359A1
公开(公告)日：2022-08-25
申请号：PCT/US2022/017167
申请日：2022-02-21
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： JOHNSON, Ryan M.
Abstract: An exhaust gas aftertreatment system includes a first decomposition chamber, a first dosing module, a first conversion catalyst member, a second decomposition chamber, a second dosing module, a second conversion catalyst member, and a third conversion catalyst member. The first decomposition chamber is configured to receive an exhaust gas. The first dosing module is coupled to the first decomposition chamber and configured to provide a first treatment fluid into the first decomposition chamber. The first conversion catalyst member is configured to receive a mixture of the first treatment fluid and the exhaust gas, from the first decomposition chamber. The second decomposition chamber is configured to receive the exhaust gas from the first conversion catalyst member. The second dosing module is coupled to the second decomposition chamber and configured to provide a second treatment fluid into the second decomposition chamber.
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24.发明申请
公开(公告)号：WO2021113119A1
公开(公告)日：2021-06-10
申请号：PCT/US2020/061968
申请日：2020-11-24
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： GONG, Jinqian , KUMRA, Anurag
Abstract: A controller for controlling regeneration of a selective catalytic reduction (SCR) catalyst of an aftertreatment system is configured to cause increase in a SCR catalyst temperature of the SCR catalyst to a first regeneration temperature, the first regeneration temperature being lower than a high regeneration temperature that is equal to or greater than 500 degrees Celsius. The controller is configured to determine an amount of ammonia slip downstream of the SCR catalyst; and cause an increase in the SCR catalyst temperature to a second regeneration temperature greater than the first regeneration temperature but lower than the high regeneration temperature based on the determined amount of ammonia slip.
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公开(公告)号：WO2021101556A1
公开(公告)日：2021-05-27
申请号：PCT/US2019/062728
申请日：2019-11-22
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： GONG, Jinqian , PATHAK, Durvesh Ramesh , SU, Changsheng C. , SHARMA, Gautam , XI, Yuanzhou
Abstract: A control module for an aftertreatment system that includes a selective catalytic reduction (SCR) catalyst and an oxidation catalyst, comprises a controller configured to be operatively coupled to the aftertreatment system. The controller is configured to determine an actual SCR catalytic conversion efficiency of the SCR catalyst. The controller determines an estimated SCR catalytic conversion efficiency based on a test sulfur concentration selected by the controller. In response to the estimated SCR catalytic conversion efficiency being within a predefined range, the controller sets the test sulfur concentration as a determined sulfur concentration in a fuel provided to the engine. The controller generates a sulfur concentration signal indicating the determined sulfur.
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Patent Agency Ranking
公开(公告)号：WO2021025875A1
公开(公告)日：2021-02-11
申请号：PCT/US2020/043469
申请日：2020-07-24
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： OTTINGER, Nathan A. , LIU, Z. Gerald , XI, Yuanzhou
IPC: F02D41/02
Abstract: An aftertreatment system for use in a vehicle that includes an engine comprises: a selective catalytic reduction system configured to decompose constituents of an exhaust gas generated by the engine, a reductant insertion assembly configured to insert a reductant into the exhaust gas, and a controller. The controller is configured to: generate a route for the vehicle to travel from a present location of the vehicle to a final destination of the vehicle, determine a plurality of route parameters of the generated route, determine an estimated exhaust gas parameter of the exhaust gas that will be generated by the engine as the vehicle travels on the generated route based on the plurality of route parameters, determine a location on the route at which to execute an aftertreatment event based on the determined estimated exhaust gas parameter, and execute the aftertreatment event once the vehicle reaches the location.
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27.发明申请
公开(公告)号：WO2021010964A1
公开(公告)日：2021-01-21
申请号：PCT/US2019/041818
申请日：2019-07-15
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： PATTAN, Reshma , JOHNSON, Ryan M. , MITTAPALLI, Mahendra , KUJUR, Priyanka S.
Abstract: An inlet assembly for a housing containing an aftertreatment component of an aftertreatment system comprises an inlet conduit configured to be disposed substantially perpendicular to a longitudinal axis of the housing. A flow redirection conduit is disposed downstream of the inlet conduit and is coupled to the end of the housing. A plurality of protrusions project from a sidewall of the flow redirection conduit towards an inlet face of the aftertreatment component and are configured to provide a uniform exhaust gas flow to the inlet face. Alternatively, a flow distribution plate having a plurality of slots defined substantially perpendicular to the longitudinal axis is disposed in the flow redirection conduit, the plate being inclined with respect to the longitudinal axis. The slots are configured to provide a uniform exhaust gas flow to the inlet face.
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28.发明申请
公开(公告)号：WO2020250015A1
公开(公告)日：2020-12-17
申请号：PCT/IB2019/054988
申请日：2019-06-14
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： LIU, Z. Gerald , KALYANKAR, Apoorv , MUNNANNUR, Achuth , SCHMIDT, Niklas M. , DUNNUCK, David Lee
Abstract: A vane swirl mixer for exhaust aftertreatment comprises a vane swirl mixer inlet configured to receive exhaust gas and a vane swirl mixer outlet configured to provide the exhaust gas to a catalyst. It further comprises a first flow device configured to receive the exhaust gas from the vane swirl mixer inlet and to receive a reductant such that the reductant is mixed with the exhaust gas within the first flow device. The first flow device comprises a Venturi body having a Venturi center axis and being defined by a body inlet and a body outlet. The first flow device further comprises a plurality of upstream vanes positioned within the Venturi body and proximate the body inlet. Each of the upstream vanes is coupled to an upstream vane hub. A plurality of upstream vane apertures is interspaced between the plurality of upstream vanes. The plurality of upstream vane apertures is configured to receive the exhaust gas and to cooperate with the plurality of upstream vanes to provide the exhaust gas with a swirl flow that facilitates mixing of the reductant and the exhaust gas. Additionally, the first flow device comprises a plurality of downstream vanes positioned within the Venturi body and proximate the body outlet. Each of the downstream vanes is coupled to a downstream vane hub. A plurality of downstream vane apertures is interspaced between the plurality of downstream vanes. The plurality of downstream vane apertures is configured to receive the exhaust gas and to cooperate with the plurality of downstream vanes to facilitate further mixing of the reductant and the exhaust gas. At least one of the upstream vane hub and the downstream vane hub is radially offset from the Venturi center axis, thereby causing individual ones of the plurality of vanes coupled to the radially offset vane hub to differ in their geometry.
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公开(公告)号：WO2020143012A1
公开(公告)日：2020-07-16
申请号：PCT/CN2019/071269
申请日：2019-01-11
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： SU, Changsheng , BIAN, Liqiang , JIANG, Lei , XIE, Yi
Abstract: An aftertreatment system (100) includes a decomposition chamber (108), a reductant pump (120), a first dosing module (110), a second dosing module (112), and a controller (133). The first dosing module (110) is coupled to the decomposition chamber (108) and configured to receive reductant from the reductant pump (120). The second dosing module (112) is coupled to the decomposition chamber (108) and configured to receive reductant from the reductant pump (120) independent of the first dosing module (110). The controller (133) is communicatively coupled to the first dosing module (110) and the second dosing module (112). The controller (133) is configured to independently control a first volumetric flow rate of reductant provided from the first dosing module (110) into the decomposition chamber (108) and a second volumetric flow rate of reductant provided from the second dosing module (112) into the decomposition chamber (108).
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30.发明申请
公开(公告)号：WO2019089449A1
公开(公告)日：2019-05-09
申请号：PCT/US2018/057985
申请日：2018-10-29
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： SUNDARARAJAN, Vikram , HILL, Joe V.
IPC: F01N3/20
Abstract: A controller includes a switching delay circuit structured to determine an open delay time and a close delay time for a reductant injector, each based on battery voltage and reductant injector coil temperature. A dosing circuit is structured to determine an open time that the armature pin must be in the fully open position so as to cause the injector to inject a first quantity of reductant. An actuation time is determined based on each of the open time, the open delay time, and the close delay time. The actuation time relates to a time that the coil must be energized so as to cause the injector to inject the first quantity of reductant. A switching command signal is transmitted to the injector to energize the coil for the calculated actuation time so as to cause the injector to inject the first quantity of reductant into an exhaust gas stream.
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