公开(公告)号：US20160069235A1

公开(公告)日：2016-03-10

申请号：US14944800

申请日：2015-11-18

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Dana Kregling ,  Alan Brockman ,  Adam J. Kotrba ,  Michael Golin

IPC: F01N3/08

CPC classification number: F01N3/08 ,  F01N3/2066 ,  F01N13/011 ,  F01N2260/02 ,  F01N2610/02 ,  F01N2610/144 ,  F01N2610/1466 ,  F01N2610/1473 ,  F01N2610/1486 ,  F01N2610/1493 ,  Y02T10/24 ,  Y10T137/2541

Abstract: An exhaust after-treatment system includes an exhaust treatment component, a tank for holding an exhaust treatment fluid, and an exhaust treatment fluid dosing system. The dosing system includes a fluid distributor providing exhaust treatment fluid under pressure to a plurality of dosing modules that dose exhaust treatment fluid into the exhaust stream and a return for returning unused exhaust treatment fluid to the tank. A valve is positioned between the fluid distributor and the return and is configured to allow a flow of exhaust treatment fluid from the return to the fluid distributor before being returned to the tank during a purge operation. A controller is configured to open the valve and allow communication between the return and the fluid distributor during the purge operation such that unused exhaust treatment fluid drains during the purge operation.

Abstract translation: 排气后处理系统包括废气处理部件，用于保持废气处理流体的罐和排气处理流体配量系统。 定量给料系统包括流体分配器，其将压力下的废气处理流体提供给将废气处理流体排放到废气流中的多个计量模块，以及用于将未使用的废气处理流体返回到罐的返回。 阀门位于流体分配器和返回件之间，并被构造成允许排气处理流体在清洗操作期间返回到流体分配器之前流到流体分配器。 控制器构造成打开阀并且允许在净化操作期间返回阀和流体分配器之间的连通，使得在净化操作期间未使用的废气处理流体排出。

公开(公告)号：US20150040547A1

公开(公告)日：2015-02-12

申请号：US13961989

申请日：2013-08-08

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Alan Brockman ,  Michael Golin

IPC: F01N1/16

CPC classification number: F01N1/16 ,  B01F5/0617 ,  B01F2005/0639 ,  F01N3/2892 ,  F01N2240/20 ,  F01N2610/02

Abstract: A mixer for an exhaust aftertreatment system may include a housing and first and second groups of deflectors. The first group of deflectors may be disposed within the housing and may be arranged relative to each other to direct fluid flowing through the first group of deflectors into a first pair of vortices that rotate in opposite directions relative to each other. The second group of deflectors may be disposed within the housing and may be arranged relative to each other to direct fluid flowing through the second group of deflectors into a second pair of vortices that rotate in opposite directions relative to each other. The first and second groups of deflectors may be rotationally symmetric with each other about a longitudinal axis of the housing.

Abstract translation: 用于排气后处理系统的混合器可以包括壳体和第一组和第二组偏转器。 第一组偏转器可以设置在壳体内并且可以相对于彼此布置以将流过第一组偏转器的流体引导成相对于彼此沿相反方向旋转的第一对涡流。 第二组偏转器可以设置在壳体内并且可以相对于彼此布置以将流过第二组偏转器的流体引导到相对于彼此沿相反方向旋转的第二对涡流。 第一组和第二组偏转器可以围绕壳体的纵向轴线彼此旋转对称。