公开(公告)号：US20150240683A1

公开(公告)日：2015-08-27

申请号：US14190750

申请日：2014-02-26

Applicant: Caterpillar Inc.

Inventor： Jason W. Hudgens ,  Jinhui Sun

IPC: F01N3/18

CPC classification number: F01N3/208 ,  F01N2610/1406 ,  F01N2610/1433 ,  F01N2610/1493 ,  Y02T10/24 ,  Y10T137/0318 ,  Y10T137/794

Abstract: A reductant supply system for an engine aftertreatment device is provided. The reductant supply system includes a tank configured to store a reductant. The reductant supply system includes a filter configured to receive the reductant from the tank. The filter defines a filtered volume therein. The reductant supply system includes a suction conduit in fluid communication with the filtered volume. The reductant supply system also includes a pump in fluid communication with the suction conduit. The pump is configured to pressurize the reductant. The reductant supply system further includes a return conduit configured to recirculate at least a part of the reductant pressurized by the pump to the filtered volume.

Abstract translation: 提供了用于发动机后处理装置的还原剂供应系统。 还原剂供应系统包括配置成存储还原剂的罐。 还原剂供应系统包括被配置为从罐接收还原剂的过滤器。 过滤器在其中定义过滤体积。 还原剂供应系统包括与过滤体积流体连通的吸入管道。 还原剂供应系统还包括与吸入管道流体连通的泵。 泵被配置为对还原剂加压。 还原剂供应系统还包括返回管道，其被配置为将由泵加压的还原剂的至少一部分再循环到经过滤的体积。

公开(公告)号：US20150361847A1

公开(公告)日：2015-12-17

申请号：US14303659

申请日：2014-06-13

Applicant: Caterpillar Inc.

Inventor： Matthew F. Fahrenkrug ,  Theron J. Cassidy ,  Jason W. Hudgens ,  Jinhui Sun

IPC: F01N3/20 ,  F01N3/28 ,  F01P3/20

CPC classification number: F01P3/20 ,  F01N3/208 ,  F01N2610/11 ,  Y02T10/24 ,  Y10T137/6579

Abstract: A valve assembly for an aftertreatment system is disclosed. The valve assembly includes a coolant conduit. The coolant conduit is configured to allow a coolant flow therethrough. The valve assembly also includes a valve element having a valve passage. The valve element is configured to control a reductant flow through the valve passage. The valve assembly further includes a coupling mechanism provided on the valve element. The coupling mechanism is configured to attach the valve element to the coolant conduit such that a temperature of the valve assembly is controlled based on the coolant flow.

Abstract translation: 公开了一种用于后处理系统的阀组件。 阀组件包括冷却剂管道。 冷却剂导管构造成允许冷却剂流过其中。 阀组件还包括具有阀通道的阀元件。 阀元件构造成控制通过阀通道的还原剂流。 阀组件还包括设置在阀元件上的联接机构。 联接机构构造成将阀元件附接到冷却剂管道，使得基于冷却剂流控制阀组件的温度。

公开(公告)号：US20150275732A1

公开(公告)日：2015-10-01

申请号：US14228752

申请日：2014-03-28

Applicant: Caterpillar Inc.

Inventor： Yong Yi ,  Jinhui Sun ,  Arvind Jujare

IPC: F01N3/20

CPC classification number: F01N3/2046 ,  F01N3/2066 ,  F01N2240/02 ,  F01N2240/06 ,  F01N2610/02 ,  F01N2610/105 ,  F01N2610/11 ,  F01N2610/1406 ,  F01N2610/1426 ,  F01N2610/1433 ,  F01N2610/1486 ,  F01N2900/1811 ,  F28D7/024 ,  Y02T10/24

Abstract: A coolant system for a reductant tank is disclosed. The coolant system includes a valve configured to control a coolant flow to the reductant tank. The coolant system also includes a cyclonic filter element provided in fluid communication with the valve. The cyclonic filter is positioned upstream of the valve with respect to the coolant flow. The cyclonic filter is configured to separate particulate contaminants from the coolant flow to create a filtered coolant flow. The cyclonic filter is also configured to direct the separated particulate contaminants away from the valve. The cyclonic filter is further configured to provide the filtered coolant flow to the valve.

Abstract translation: 公开了一种用于还原罐的冷却剂系统。 冷却剂系统包括构造成控制冷却剂流向还原罐的阀。 冷却剂系统还包括与阀流体连通地设置的旋风过滤元件。 旋风过滤器相对于冷却剂流定位在阀的上游。 气旋过滤器被配置为将颗粒污染物与冷却剂流分离以产生过滤的冷却剂流。 旋风过滤器还构造成将分离的颗粒污染物引导离开阀。 旋风过滤器还被配置成提供过滤的冷却剂流到阀。

公开(公告)号：US20140331645A1

公开(公告)日：2014-11-13

申请号：US13892618

申请日：2013-05-13

Applicant: Caterpillar Inc.

Inventor： Brian Cole ,  Matthew F. Fahrenkrug ,  Jinhui Sun

IPC: F01N3/20

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/102 ,  F01N2610/1453 ,  F01N2610/1493 ,  F01N2900/0416 ,  F01N2900/1811 ,  Y02T10/24

Abstract: A machine includes an engine having an exhaust system. A diesel exhaust fluid (DEF) injector provides metered amounts of DEF and includes a valve adapted to selectively open in response to a command. A controller associated with the engine and the DEF injector monitors operation of the DEF injector to detect a fault and activates a failure remediation cycle when the fault has been detected. The remediation cycle includes heating the exhaust gas to heat the DEF injector and melt any urea crystals that may be causing the fault, and activating the valve of the DEF injector to evacuate molten urea from within the DEF injector.

Abstract translation: 机器包括具有排气系统的发动机。 柴油机排气流体（DEF）喷射器提供计量的DEF并且包括适于响应于命令选择性地打开的阀。 与发动机相关联的控制器和DEF进样器监测DEF进样器的运行以检测故障，并在检测到故障时激活故障修复循环。 修复循环包括加热废气以加热DEF注射器并熔化可能导致故障的任何尿素晶体，以及启动DEF喷射器的阀以从DEF喷射器内部排出熔融的尿素。

公开(公告)号：US09441522B2

公开(公告)日：2016-09-13

申请号：US14340137

申请日：2014-07-24

Applicant: Caterpillar Inc.

Inventor： Richard Anderson Crandell ,  Jinhui Sun ,  Yong Yi ,  Zhi Huang ,  Matthew Fahrenkrug ,  James E. Webster ,  Michael Max Blanco

IPC: F01N3/20 ,  F01N3/24

CPC classification number: F01N3/24 ,  B01F3/04049 ,  B01F5/045 ,  B01F2005/0091 ,  F01N3/2066 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A mounting assembly for an injector is located in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end. The mounting assembly includes an indent extending at least partially into the exhaust line curved portion and disposed in the exhaust flow. The downstream wall has an interior surface oriented to substantially face the exhaust line downstream end. A recess extends from the downstream wall in a direction away from the exhaust line downstream end, and a recess aperture is formed in the recess and configured to fluidly communicate with the injector. The recess reduces the amount of exhaust heat reaching the injector tip.

Abstract translation: 用于喷射器的安装组件位于具有从上游端到下游端的排气流的排气管的弯曲部分。 安装组件包括至少部分地延伸到排气管线弯曲部分中并设置在排气流中的凹口。 下游壁具有基本面对排气管下游端的内表面。 凹部从远离排气管下游端的方向从下游壁延伸，并且凹部孔形成在凹部中并且构造成与喷射器流体连通。 该凹部减少了到达喷射器尖端的排出热量。

公开(公告)号：US20150198073A1

公开(公告)日：2015-07-16

申请号：US14153596

申请日：2014-01-13

Applicant: Caterpillar, Inc.

Inventor： Arvind Jujare ,  Jinhui Sun ,  Yong Yi ,  Jason Wesley Hudgens ,  David Gorisek

IPC: F01N3/20 ,  F01N13/08 ,  F01N3/28

CPC classification number: F01N13/08 ,  B01F3/04049 ,  B01F5/0268 ,  B01F5/0451 ,  B01F5/0653 ,  B01F2005/0091 ,  F01N3/2066 ,  F01N3/2892 ,  F01N2610/02 ,  Y02T10/24

Abstract: An exhaust aftertreatment system, such as for a diesel engine, includes a reductant dosing system with an injector positioned in an elbow pipe of an exhaust conduit. A tubeless mixer is positioned in the exhaust conduit between the injector nozzle outlet and an SCR catalyst. The tubeless mixer includes a plurality of rings, all of which are distributed with increasing size as distance from the nozzle outlet increases. The tubeless mixer aides in more uniformly distributing reductant in the exhaust flow prior to arrival at the SCR catalyst.

Abstract translation: 诸如用于柴油发动机的排气后处理系统包括具有定位在排气管道的弯管中的喷射器的还原剂计量系统。 无内胎混合器位于喷射器喷嘴出口和SCR催化剂之间的排气管道中。 无内胎混合器包括多个环，所有这些环随着距离喷嘴出口的距离增加而随着尺寸的增加而分布。 无内胎混合器在到达SCR催化剂之前在排气流中更均匀地分配还原剂。

公开(公告)号：US20150023843A1

公开(公告)日：2015-01-22

申请号：US14510141

申请日：2014-10-09

Applicant: Caterpillar Inc.

Inventor： James J. Driscoll ,  Brian M. Cole ,  Jinhui Sun

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N2610/02 ,  F01N2610/1426 ,  F01N2610/1433 ,  F01N2610/1473 ,  Y02T10/24

Abstract: An aftertreatment system is disclosed. The aftertreatment system includes an exhaust conduit and a selective catalytic reduction module. The aftertreatment system also includes a reductant supply system. The reductant supply system includes a reductant tank, a reductant injector, and a pump assembly. The pump assembly includes a reversing valve assembly and a pump unit. The pump assembly also includes a plurality of check valves, a pressure sensor, and a filter. Further, the reductant supply system includes a back flow valve assembly. The reductant supply system also includes at least two header units associated with the pump assembly. The at least two header units include a reductant draw conduit and at least one heat exchanger. The at least two header units also include a bag filtration assembly.

Abstract translation: 公开了后处理系统。 后处理系统包括排气管和选择性催化还原模块。 后处理系统还包括还原剂供应系统。 还原剂供应系统包括还原剂罐，还原剂注入器和泵组件。 泵组件包括换向阀组件和泵单元。 泵组件还包括多个止回阀，压力传感器和过滤器。 此外，还原剂供给系统包括回流阀组件。 还原剂供应系统还包括与泵组件相关联的至少两个集管单元。 至少两个集管单元包括还原剂牵引管和至少一个热交换器。 至少两个集管单元还包括袋式过滤组件。

公开(公告)号：US20160032801A1

公开(公告)日：2016-02-04

申请号：US14448653

申请日：2014-07-31

Applicant: Caterpillar Inc.

Inventor： Eric Tyler Alig ,  Jinhui Sun ,  Scott Charles Morris ,  Faith Juliet McKenzie ,  Matthew Colin Mowers

IPC: F01N3/20

CPC classification number: F01N13/011 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0097 ,  F01N2260/04 ,  F01N2550/05 ,  F01N2560/021 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2900/0416 ,  Y02T10/24

Abstract: An aftertreatment system is disclosed for use with a combustion engine. The aftertreatment system may have at least one exhaust passage, and a plurality of dosing circuits configured to inject reductant into the at least one exhaust passage. The aftertreatment system may also have a controller in communication with each of the plurality of dosing circuits. The controller may be configured to determine a failure of a first of the plurality of dosing circuits, and to selectively adjust operation of a second of the plurality of dosing circuits based on the failure.

Abstract translation: 公开了一种与内燃机一起使用的后处理系统。 后处理系统可以具有至少一个排气通道，以及配置成将还原剂注入到至少一个排气通道中的多个计量回路。 后处理系统还可以具有与多个计量电路中的每一个通信的控制器。 控制器可以被配置为确定多个计量电路中的第一个的故障，并且基于故障来选择性地调整多个计量电路中的第二个的操作。

公开(公告)号：US20140331655A1

公开(公告)日：2014-11-13

申请号：US14340137

申请日：2014-07-24

Applicant: CATERPILLAR INC.

Inventor： Richard Anderson Crandell ,  Jinhui Sun ,  Yong Yi ,  Zhi Huang ,  Matthew Fahrenkrug ,  James E. Webster ,  Michael Max Blanco

IPC: F01N3/24

CPC classification number: F01N3/24 ,  B01F3/04049 ,  B01F5/045 ,  B01F2005/0091 ,  F01N3/2066 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A mounting assembly for an injector is located in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end. The mounting assembly includes an indent extending at least partially into the exhaust line curved portion and disposed in the exhaust flow. The downstream wall has an interior surface oriented to substantially face the exhaust line downstream end. A recess extends from the downstream wall in a direction away from the exhaust line downstream end, and a recess aperture is formed in the recess and configured to fluidly communicate with the injector. The recess reduces the amount of exhaust heat reaching the injector tip.

Abstract translation: 用于喷射器的安装组件位于具有从上游端到下游端的排气流的排气管的弯曲部分。 安装组件包括至少部分地延伸到排气管线弯曲部分中并设置在排气流中的凹口。 下游壁具有基本面对排气管下游端的内表面。 凹部从远离排气管下游端的方向从下游壁延伸，并且凹部孔形成在凹部中并且构造成与喷射器流体连通。 该凹部减少了到达喷射器尖端的排出热量。

公开(公告)号：US20140286832A1

公开(公告)日：2014-09-25

申请号：US14298271

申请日：2014-06-06

Applicant: Caterpillar Inc.

Inventor： Yong Yi ,  Jinhui Sun ,  Arvind Jujare

IPC: B01D53/86

CPC classification number: B01D53/86 ,  B01D53/90 ,  B01D53/9431 ,  B01F3/04049 ,  B01F5/0262 ,  B01F5/0473 ,  F01N3/2892 ,  F01N3/36 ,  F01N2240/20

Abstract: An exhaust system is provided. The exhaust system includes an exhaust conduit having a protuberance thereon. A reductant injector is provided on the protuberance. The reductant injector is positioned such that an ejection tip of the reductant injector is inclined with respect to a centerline of the exhaust conduit. A baffle assembly is coupled to an inner wall of the exhaust conduit. The baffle assembly is positioned upstream of the ejection tip of the reductant injector. A first plate of the baffle assembly is positioned parallel to the centerline of the exhaust conduit. A second plate of the baffle assembly extends from the first plate. The second plate is positioned angularly with respect to the first plate. The baffle assembly is configured to deflect at least a portion of an exhaust gas flow over the ejection tip of the reductant injector.

Abstract translation: 提供排气系统。 排气系统包括在其上具有突起的排气导管。 还原剂注射器设置在突起上。 还原剂喷射器被定位成使得还原剂喷射器的喷射头相对于排气导管的中心线倾斜。 挡板组件联接到排气管道的内壁。 挡板组件位于还原剂喷射器的喷射端的上游。 挡板组件的第一板平行于排气管道的中心线定位。 挡板组件的第二板从第一板延伸。 第二板相对于第一板角度定位。 挡板组件构造成使排气流的至少一部分偏转在还原剂喷射器的喷射端上。