公开(公告)号：US10731536B1

公开(公告)日：2020-08-04

申请号：US16359719

申请日：2019-03-20

Applicant: Caterpillar Inc.

Inventor： Kurtis Chenoweth ,  Jianping Pan ,  Mohamed Daoud ,  Y. T. Bui ,  Jason Hudgens ,  Ian Aguirre

IPC: F01N3/28 ,  F01N3/20 ,  B01D53/94 ,  F01N11/00 ,  F01N1/14

Abstract: An exhaust gas aftertreatment system is disclosed. The system may include an inlet to receive an exhaust gas produced by an engine and a first section to receive the exhaust gas from the inlet. The system may include a mixing tube to receive the exhaust gas from the first section and a reductant injector to inject a reductant into the mixing tube. The system may include a second section to receive the exhaust gas from the mixing tube and to facilitate mixing of the reductant and the exhaust gas after the exhaust gas exits the mixing tube and a diffuser to receive the exhaust gas from the second section. The system may include a plurality of catalysts to receive the exhaust gas from the diffuser and at least one outlet to receive the exhaust gas from the plurality of catalysts.

公开(公告)号：US20170087514A1

公开(公告)日：2017-03-30

申请号：US14870530

申请日：2015-09-30

Applicant: Caterpillar Inc.

Inventor： Mohamed Daoud ,  Yung T. Bui ,  Arvind Jujare ,  Kevin Weiss

IPC: B01D53/94 ,  F01N3/021 ,  F01N3/28 ,  F01N3/20

CPC classification number: B01D53/9431 ,  B01D2251/2062 ,  B01D2255/90 ,  F01N3/021 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/2892 ,  F01N3/2896 ,  F01N13/011 ,  F01N13/017 ,  F01N2240/20 ,  F01N2470/30 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A system for uniform flow distribution of a reductant is disclosed. The system includes an injector lance and a diffuser assembly. The injector lance further includes a reductant supply conduit and an injector lance. The reductant supply conduit extends into an internal diameter of an exhaust conduit from a first end of the exhaust conduit towards a second end of the exhaust conduit. The injector lance is in communication with and extends perpendicular to the reductant supply conduit. The injector lance is located along a longitudinal axis of the exhaust conduit. The diffuser assembly is further collocated or integral with the injector lance.

公开(公告)号：US20140174848A1

公开(公告)日：2014-06-26

申请号：US14190712

申请日：2014-02-26

Applicant: Caterpillar Inc.

Inventor： Mohamed Daoud

IPC: F01N13/08

CPC classification number: F01N13/08 ,  F01N1/08 ,  F01N3/06 ,  F01N2230/06

Abstract: A spark arrestor is provided. The spark arrestor includes a housing and an inlet tube. The inlet tube is configured to receive an exhaust flow into the housing. A first baffle is positioned within the housing. The first baffle has a curved configuration and is placed such that a convex side of the first baffle faces the exhaust flow. A second baffle is positioned within the housing. The first baffle and the second baffle are configured to separate particles from the exhaust flow. An outlet tube is present within the housing and is positioned centrally in relation to the first baffle and the second baffle. An end of the outlet tube is configured to contact a concave side of the first baffle. Further, the outlet tube includes a plurality of perforations at the end. The perforations are configured to receive air separated from the exhaust flow into the outlet tube.

Abstract translation: 提供火花放电器。 火花放电器包括壳体和入口管。 入口管被配置为接收排出流入壳体。 第一挡板位于壳体内。 第一挡板具有弯曲构造并且被布置成使得第一挡板的凸侧面向排气流。 第二挡板位于壳体内。 第一挡板和第二挡板构造成从排气流中分离出颗粒。 出口管存在于壳体内并且相对于第一挡板和第二挡板定位在中心。 出口管的一端构造成接触第一挡板的凹面。 此外，出口管在末端包括多个穿孔。 穿孔构造成接收从排气流分离到出口管中的空气。

公开(公告)号：US11028755B2

公开(公告)日：2021-06-08

申请号：US16359885

申请日：2019-03-20

Applicant: Caterpillar Inc.

Inventor： Kurtis Chenoweth ,  Jianping Pan ,  Mohamed Daoud ,  Srinivasa Perumal Velu ,  Arvind Jujare ,  Y. T. Bui

IPC: F01N3/28 ,  B01F11/00 ,  F01N3/20 ,  B01F5/06

Abstract: A selective catalytic reduction (SCR) system is disclosed. The SCR system may include a mixing tube with a mixing tube inlet; a diesel exhaust fluid (DEF) injector proximate to the mixing tube inlet; and a flow control device proximate to the mixing tube inlet, wherein the flow control device is positioned within the mixing tube or affixed to the mixing tube inlet, and wherein the flow control device includes a plurality of vanes arranged around a center of the flow control device.

公开(公告)号：US10934907B2

公开(公告)日：2021-03-02

申请号：US16359726

申请日：2019-03-20

Applicant: Caterpillar Inc.

Inventor： Kurtis Chenoweth ,  Jianping Pan ,  Mohamed Daoud ,  Ian Aguirre ,  Y. T. Bui

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/28

Abstract: An aftertreatment module is disclosed. The aftertreatment module may include a housing and a mounting plate within the housing that forms an inlet chamber and an outlet chamber. The aftertreatment module may include an inlet for exhaust gas from a combustion engine to flow into the inlet chamber and an outlet through a top plate of the housing for the exhaust gas to flow from the outlet chamber, wherein the outlet comprises a plurality of perforations. The aftertreatment module may include an outlet sensor mounted on the outlet to obtain information relating to the exhaust gas as the exhaust gas flows from the outlet chamber and a set of catalysts mounted to the mounting plate to treat the exhaust gas as the exhaust gas flows from the inlet chamber to the outlet chamber. The aftertreatment module may include a drain port through a side plate of the housing.