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。