公开(公告)号：WO2018075931A1

公开(公告)日：2018-04-26

申请号：PCT/US2017/057665

申请日：2017-10-20

Applicant: CUMMINS EMISSION SOLUTIONS INC.

Inventor： BUECHLER, John G. ,  ZORAN, Randolph G. ,  JOHNSON, Ryan M. ,  HOLL, Stephen M. ,  DEHART, Taren ,  ALONZO, Jim L. ,  ANDERSON, Matthew L. ,  KALYANKAR, Apoorv ,  MAVROUDIS, George Eugene ,  PANDIT, Gaurav Hemant

IPC: F01N3/022

CPC classification number: F01N3/208 ,  B01D53/9418 ,  B01D53/944 ,  F01N3/0215 ,  F01N3/022 ,  F01N3/2066 ,  F01N3/2803 ,  F01N3/2882 ,  F01N2330/30 ,  F01N2330/60 ,  Y02T10/20

Abstract: An aftertreatment component's shape, entrance geometry, and/or position within an aftertreatment assembly can be modified for local and/or bulk exhaust flow control. In some implementations, a body of the aftertreatment component has a non-circular cross-section, a non-circular opening, and/or a variable face geometry. The non-circular cross-section and/or opening can be of a variety of different shapes.

Abstract translation: 后处理组件的形状，入口几何形状和/或后处理组件内的位置可以被修改用于局部和/或整体排气流量控制。 在一些实施方式中，后处理部件的主体具有非圆形横截面，非圆形开口和/或可变面几何形状。 非圆形横截面和/或开口可以具有各种不同的形状。

公开(公告)号：WO2016109320A1

公开(公告)日：2016-07-07

申请号：PCT/US2015/067302

申请日：2015-12-22

Applicant: CUMMINS EMISSION SOLUTIONS, INC.

Inventor： ZORAN, Randolph G. ,  JOHNSON, Ryan M. ,  SARCONA, David M. ,  MCDONALD, Carl A. ,  FEDERLE, Kenneth R. ,  BUECHLER, John G. ,  LUBENOW, Scott

IPC: B01D50/00

CPC classification number: B01D53/9431 ,  B01D46/521 ,  B01D53/864 ,  B01D53/865 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/20738 ,  F01N3/021 ,  F01N3/0211 ,  F01N3/2066 ,  F01N13/0097 ,  F01N2450/30 ,  Y02T10/24

Abstract: A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a DPF center axis aligned with the single centerline axis. The selective catalytic reduction system may also include an SCR catalyst disposed within the single housing and having a center axis aligned with the single centerline axis. In some implementations, the diesel particulate filter may include one or more SiC filters. In some implementations, the SCR catalyst may include one or more extruded SCR catalysts.

Abstract translation: 选择性催化还原系统可以包括限定单个中心线轴线的单个壳体。 选择性催化还原系统还可以包括设置在单个壳体内并具有与单个中心线轴线对准的DPF中心轴线的柴油机微粒过滤器。 选择性催化还原系统还可以包括设置在单个壳体内并具有与单个中心线轴线对准的中心轴线的SCR催化剂。 在一些实施方案中，柴油微粒过滤器可以包括一个或多个SiC过滤器。 在一些实施方案中，SCR催化剂可以包括一种或多种挤出的SCR催化剂。

公开(公告)号：WO2021225824A1

公开(公告)日：2021-11-11

申请号：PCT/US2021/029282

申请日：2021-04-27

Applicant: CUMMINS EMISSION SOLUTIONS INC.

Inventor： JOHNSON, Ryan M. ,  BUECHLER, John G. ,  VOLMERDING, Matthew K. ,  ZORAN, Randy G.

IPC: F01N13/00 ,  F01N3/033 ,  F01N3/035 ,  F01N3/08 ,  F01N3/10 ,  F01N3/28

Abstract: An aftertreatment system comprises a housing defining a first and a second internal volume fluidly isolated from each other. A first aftertreatment leg extends from the first to the second internal volume and includes an oxidation catalyst and a filter. The oxidation catalyst receives exhaust gas from an inlet conduit and the filter emits exhaust gas into the second internal volume. A second aftertreatment leg extends from the second to the first internal volume and includes at least one SCR catalyst disposed offset from the first aftertreatment leg. A decomposition tube is disposed offset from the SCR catalyst and the oxidation catalyst. The decomposition tube is configured to receive the exhaust gas from the second internal volume and communicate it to the inlet of the at least one SCR catalyst. A reductant injection inlet is defined proximate to the inlet of the decomposition tube for reductant insertion.

公开(公告)号：WO2021113246A1

公开(公告)日：2021-06-10

申请号：PCT/US2020/062718

申请日：2020-12-01

Applicant: CUMMINS EMISSION SOLUTIONS INC.

Inventor： JOHNSON, Samuel ,  FRISCH, Paul T. ,  JANG, Peter Te-Cheng ,  ZORAN, Randolph G. ,  JOHNSON, Ryan M. ,  BUECHLER, John G. ,  ALONZO, Jim L. ,  NANDURU, Enoch ,  JOSHI, Pradnya C. ,  CHIRUTA, Mihai ,  MONTGOMERY, Isabel Valborg ,  DALDEGAN, Guilherme

IPC: F01N3/20

Abstract: A decomposition chamber for an exhaust gas aftertreatment system includes an inlet tube, a selective catalytic reduction (SCR) catalyst member, a mixing collector wall, a distribution cap, and a dividing tube. The inlet tube is configured to receive exhaust gas. The mixing collector wall includes a mixing assembly flow aperture. The distribution cap is coupled to the inlet tube and configured to receive the exhaust gas from the inlet tube. The dividing tube is coupled to the mixing collector wall. The dividing tube separates the distribution cap from the mixing assembly flow aperture. The dividing tube includes a first dividing tube inlet aperture that is configured to receive the exhaust gas from the distribution cap. The dividing tube outlet aperture is configured to provide the exhaust gas to the mixing assembly flow aperture.

公开(公告)号：WO2018075923A1

公开(公告)日：2018-04-26

申请号：PCT/US2017/057648

申请日：2017-10-20

Applicant: CUMMINS EMISSION SOLUTIONS INC.

Inventor： DEHART, Taren ,  ZORAN, Randolph G. ,  JOHNSON, Ryan M. ,  HOLL, Stephen M. ,  BUECHLER, John G. ,  ANDERSON, Matthew L.

IPC: F01N3/035 ,  B01D53/94

CPC classification number: F01N3/021 ,  B01D53/94 ,  B01D53/9418 ,  B01D53/9431 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/9032 ,  B01D2258/012 ,  F01N3/0222 ,  F01N3/281 ,  F01N2330/02 ,  F01N2330/04 ,  Y02T10/20

Abstract: Methods of combining catalytic plates into an assembly of a non-monolithic structure, such as a catalyst substrate or filter assembly, of an exhaust aftertreatment system. A plurality of plates may be disposed within a housing in an arrangement that may define a catalytically active volume of a substrate. Each of the plurality of plates may be single-curved or multiple-curved and/or may be represented by three-dimensional nestable structures. The arrangement of plates may be configured such that the flow is axial, radial, or represented by a hybrid, multi-segment intake path. The plurality of plates may be arranged such that they are configured to receive targeted amounts of coating agent, which may differ among the plates.

Abstract translation: 将催化板组合成排气后处理系统的非整体式结构如催化剂衬底或过滤器组件的组件的方法。 多个板可以布置在外壳内，其可以限定催化活性体积的基底。 多个板中的每一个可以是单弯曲的或多弯曲的和/或可以由三维可嵌套结构表示。 板的布置可以被配置为使得流动是轴向的，径向的或者由混合的多段进气路径表示。 多个板可以布置成使得它们被构造成接收目标量的涂层剂，其可以在板之间不同。

公开(公告)号：WO2016064567A1

公开(公告)日：2016-04-28

申请号：PCT/US2015/054137

申请日：2015-10-06

Applicant: CUMMINS EMISSION SOLUTIONS, INC.

Inventor： BUECHLER, John G. ,  MITCHELL, Douglas A. ,  JOHNSON, Ryan M. ,  GOSS, James

IPC: F01N3/10

CPC classification number: B01F3/04049 ,  B01F5/0473 ,  B01F5/0605 ,  B01F5/0606 ,  F01N3/021 ,  F01N3/2066 ,  F01N3/2892 ,  F01N13/009 ,  F01N2240/20 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

Abstract: An aftertreatment system includes a filter configured to receive an exhaust gas and a selective catalytic reduction (SCR) system configured to treat the exhaust gas. A body mixer is disposed downstream of the filter and upstream of the SCR system. The body mixer includes a housing defining an internal volume and including at least a first passageway, a second passageway, and a third passageway. The first passageway receives a flow of the exhaust gas from the filter and directs the flow of the exhaust gas towards the second passageway. The second passageway redirects the flow in a second direction opposite the first direction towards the third passageway. The third passageway redirects the flow in a third direction opposite the second direction towards the SCR system. An injection port is disposed on a sidewall of the housing and configured to communicate an exhaust reductant into the internal volume.

Abstract translation: 后处理系统包括被配置为接收废气的过滤器和被配置为处理废气的选择性催化还原（SCR）系统。 机体混合器设置在过滤器的下游和SCR系统的上游。 身体混合器包括限定内部容积并且包括至少第一通道，第二通道和第三通道的壳体。 第一通道接收来自过滤器的排气流，并引导废气流向第二通道。 第二通道将流体沿与第一方向相反的第二方向朝向第三通道重新定向。 第三通道将流体沿与第二方向相反的第三方向朝向SCR系统重定向。 注入口设置在壳体的侧壁上并且构造成将排气还原剂连通到内部容积中。