公开(公告)号：US20160194995A1

公开(公告)日：2016-07-07

申请号：US15067204

申请日：2016-03-11

Applicant: Caterpillar Inc.

Inventor： Kevin Weiss ,  Mohamed I. Daoud ,  Yung T. Bui ,  Arvind Jujare ,  Chiranjeevi Mangamuri ,  Timothy Alcenius

IPC: F01N3/28

CPC classification number: F01N3/2892 ,  B01F3/04021 ,  B01F5/0451 ,  B01F5/061 ,  B01F5/0688 ,  F01N3/2066 ,  F01N13/011 ,  F01N13/08 ,  F01N13/1805 ,  F01N2240/20 ,  F01N2470/16 ,  F01N2470/18 ,  F01N2490/00

Abstract: A flow mixing device includes a body having a first end, a second end, and an interior volume defined between them. An inlet plate, coupled to the first end of the body, defines at least two inlet orifices in fluid communication with the interior volume. Similarly, an outlet plate, coupled to the second end defines an outlet passage of the flow mixing device. A diffuser conduit, coupled to the inlet plate, defines an inlet passage disposed in fluid communication with the respective inlet orifices. A separator plate assembly disposed in the interior volume extends partially between the first and second ends of the body. Flow guiding vanes, coupled proximal to the second end, extend partially within the diffuser conduit.

Abstract translation: 流动混合装置包括具有第一端，第二端和在它们之间限定的内部空间的主体。 联接到主体的第一端的入口板限定与内部容积流体连通的至少两个入口孔。 类似地，联接到第二端的出口板限定了流动混合装置的出口通道。 耦合到入口板的扩散器导管限定了与各个入口孔流体连通的入口通道。 设置在内部空间中的分隔板组件部分地延伸在主体的第一和第二端之间。 靠近第二端的流动引导叶片部分延伸在扩散管道内。

公开(公告)号：US08966965B2

公开(公告)日：2015-03-03

申请号：US13861781

申请日：2013-04-12

Applicant: Caterpillar Inc.

Inventor： James Joshua Driscoll ,  Arvind Jujare ,  Shawn Herold ,  Jason Hudgens ,  Sachin S. Deshmukh

IPC: G01M15/10 ,  F15D1/02 ,  F01N3/20 ,  F01N11/00

CPC classification number: F15D1/025 ,  B01F5/0618 ,  B01F5/0648 ,  B01F5/0688 ,  B01F5/0689 ,  B01F2005/0631 ,  B01F2005/0636 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N13/008 ,  F01N2240/20 ,  F01N2470/00 ,  F01N2560/026 ,  G01M15/102 ,  Y02T10/24

Abstract: Accurate measurement of exhaust gas compounds is necessary for correct operation of exhaust treatment systems, such as Selective Catalytic Reduction (SCR) units used in diesel engines. However, accurate sensor readings assume an even distribution of compounds in an exhaust stream in order to use a sampled measurement to be extrapolated to the compound concentrations in the full stream. A structure placed in an exhaust passage downstream of an SCR reaction unit causes turbulence in the exhaust gas while developing a minimal backpressure. This turbulence helps create a more uniform distribution of compounds in the exhaust. As a result, an exhaust gas sensor gives more accurate readings even when the sensor is placed in relatively close proximity to an output of the SCR system.

Abstract translation: 排气处理系统的正确操作，例如柴油发动机中使用的选择性催化还原（SCR）单元，对废气化合物的精确测量是必需的。 然而，精确的传感器读数假设化合物在排气流中的均匀分布，以便将采样的测量值推算为全流中的化合物浓度。 放置在SCR反应单元下游的排气通道中的结构在显现最小背压的同时引起排气中的湍流。 这种湍流有助于在排气中产生更均匀的化合物分布。 因此，即使当传感器被放置在相对靠近SCR系统的输出端时，排气传感器也能提供更准确的读数。

公开(公告)号：US20140305198A1

公开(公告)日：2014-10-16

申请号：US13861781

申请日：2013-04-12

Applicant: CATERPILLAR INC.

Inventor： James Joshua Driscoll ,  Arvind Jujare ,  Shawn Herold ,  Jason Hudgens ,  Sachin S. Deshmukh

IPC: F15D1/02 ,  F01N11/00 ,  G01M15/10 ,  F01N3/20

CPC classification number: F15D1/025 ,  B01F5/0618 ,  B01F5/0648 ,  B01F5/0688 ,  B01F5/0689 ,  B01F2005/0631 ,  B01F2005/0636 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N13/008 ,  F01N2240/20 ,  F01N2470/00 ,  F01N2560/026 ,  G01M15/102 ,  Y02T10/24

Abstract: Accurate measurement of exhaust gas compounds is necessary for correct operation of exhaust treatment systems, such as Selective Catalytic Reduction (SCR) units used in diesel engines. However, accurate sensor readings assume an even distribution of compounds in an exhaust stream in order to use a sampled measurement to be extrapolated to the compound concentrations in the full stream. A structure placed in an exhaust passage downstream of an SCR reaction unit causes turbulence in the exhaust gas while developing a minimal backpressure. This turbulence helps create a more uniform distribution of compounds in the exhaust. As a result, an exhaust gas sensor gives more accurate readings even when the sensor is placed in relatively close proximity to an output of the SCR system.

Abstract translation: 排气处理系统的正确操作，例如柴油发动机中使用的选择性催化还原（SCR）单元，对废气化合物的精确测量是必需的。 然而，精确的传感器读数假设化合物在排气流中的均匀分布，以便将采样的测量值推算为全流中的化合物浓度。 放置在SCR反应单元下游的排气通道中的结构在显现最小背压的同时引起排气中的湍流。 这种湍流有助于在排气中产生更均匀的化合物分布。 因此，即使当传感器被放置在相对靠近SCR系统的输出端时，排气传感器也能提供更准确的读数。