公开(公告)号：US09267410B2

公开(公告)日：2016-02-23

申请号：US14154295

申请日：2014-01-14

Applicant: Caterpillar Inc.

Inventor： Xiaohui Gong ,  Matthew F. Fahrenkrug ,  Dongming Tan ,  Amarnath Nelli ,  Na Cai ,  Ivan Palmer

IPC: F01N3/02 ,  F01N3/20

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/11 ,  Y02T10/24

Abstract: A cooling system for an injector tip for a diesel emission fluid (DEF) injection system is disclosed. The system uses a heat sink, such as a head for a regeneration system, to vaporize cooling fluid, in combination with a phase separation tank, to force cooling fluid backward through a cooling loop thereby allowing cooling of an injector tip following engine shutdown in a “hot” shutdown situation.

Abstract translation: 公开了一种用于柴油机排放液（DEF）注射系统的喷射器头部的冷却系统。 该系统使用诸如用于再生系统的头部的散热器与相分离罐组合来蒸发冷却流体，以迫使冷却流体向后流过冷却回路，从而允许在发动机关闭之后冷却喷射器尖端 “热”关机情况。

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：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：US20170122170A1

公开(公告)日：2017-05-04

申请号：US14928782

申请日：2015-10-30

Applicant: Caterpillar Inc.

Inventor： Matthew F. Fahrenkrug ,  Jason W. Hudgens ,  Theron J. Cassidy ,  Shawn Herold

IPC: F01N3/20 ,  B01D29/11 ,  B01D35/02

CPC classification number: F01N3/2066 ,  B01D29/114 ,  B01D29/27 ,  B01D35/02 ,  B01D35/0273 ,  B01D35/0276 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1426 ,  Y02T10/24

Abstract: A fluid reservoir for accommodating a fluid reductant used in an SCR exhaust treatment process may include various styles or designs of bag filters to filter debris and contaminants from the reductant prior to being channeled out of the reservoir. To secure the bag filter to a header assembly accommodating the various inlet and outlet tubes, in one aspect, the header assembly may be associated with a base assembly designed to reduce leak paths allowing reductant to bypass the bag filter. In another aspect, the bag filter may be secured directly to the header assembly without the base assembly.

公开(公告)号：US20220364490A1

公开(公告)日：2022-11-17

申请号：US17317865

申请日：2021-05-11

Applicant: Caterpillar Inc.

Inventor： Samuel S. Kumar ,  Matthew F. Fahrenkrug ,  Daniel R. Barb ,  Ramakrishna Manda ,  Paul A. Zwart ,  Thierry A. Marchione ,  Kevin L. Martin

IPC: F01N3/20 ,  F01N3/30

Abstract: An injector for a diesel exhaust fluid (DEF) delivery system includes a first conduit extending along a longitudinal direction; a second conduit extending along the longitudinal direction and disposed within the first conduit; a nozzle tip having a side wall and an end wall; and a shell surrounding the first conduit and being spaced apart from the first conduit along a radial direction. The side wall has a thickness extending along the radial direction from an external surface of the nozzle tip to an inner surface of the second conduit. The end wall defines an outlet flow passage therethrough, and the outlet flow passage is in fluid communication with the first conduit and the second conduit via a chamber defined by an internal surface of the nozzle tip.

公开(公告)号：US20160376968A1

公开(公告)日：2016-12-29

申请号：US14753499

申请日：2015-06-29

Applicant: Caterpillar Inc.

Inventor： Dongming Tan ,  Brian M. Cole ,  Shawn R. Herold ,  Kevin L. Dea ,  Theron Cassidy ,  Matthew F. Fahrenkrug ,  Douglas A. Long ,  James J. Driscoll

IPC: F01N3/20 ,  F01N3/021 ,  F01N3/08

CPC classification number: F01N3/2066 ,  F01N3/021 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/106 ,  F01N2530/22 ,  F01N2560/021 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/14 ,  Y02T10/24

Abstract: A header unit for a reductant tank is provided. The header unit includes a reductant draw conduit extending into an interior space of the reductant tank. The reductant draw conduit is configured to draw a reductant from the reductant tank. The reductant draw conduit includes at least one expansion opening provided along a length thereof. The header unit also includes a valve element coupled to the reductant draw conduit. The valve element includes a main body member defining a channel therethrough. The main body member circumferentially surrounds at least a portion of the reductant draw conduit corresponding to the at least one expansion opening. The main body member is made of an elastomeric material configured to accommodate an expansion thereof.

Abstract translation: 提供了一种用于还原罐的头部单元。 头部单元包括延伸到还原剂罐的内部空间中的还原剂牵引导管。 还原剂牵引导管构造成从还原槽中吸收还原剂。 还原剂牵引导管包括沿其长度设置的至少一个膨胀开口。 集管单元还包括联接到还原剂牵引导管的阀元件。 阀元件包括限定穿过其中的通道的主体构件。 主体构件周向地包围对应于至少一个膨胀开口的还原剂牵引导管的至少一部分。 主体构件由构造成适应其膨胀的弹性体材料制成。

公开(公告)号：US20150198075A1

公开(公告)日：2015-07-16

申请号：US14154295

申请日：2014-01-14

Applicant: CATERPILLAR INC.

Inventor： Xiaohui Gong ,  Matthew F. Fahrenkrug ,  Dongming Tan ,  Amarnath Nelli ,  Na Cai ,  Ivan Palmer

IPC: F01N3/28 ,  F01N3/08

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/11 ,  Y02T10/24

Abstract: A cooling system for an injector tip for a diesel emission fluid (DEF) injection system is disclosed. The system uses a heat sink, such as a head for a regeneration system, to vaporize cooling fluid, in combination with a phase separation tank, to force cooling fluid backward through a cooling loop thereby allowing cooling of an injector tip following engine shutdown in a “hot” shutdown situation.

Abstract translation: 公开了一种用于柴油机排放液（DEF）注射系统的喷射器头部的冷却系统。 该系统使用诸如用于再生系统的头部的散热器与相分离罐组合来蒸发冷却流体，以迫使冷却流体向后流过冷却回路，从而允许在发动机关闭之后冷却喷射器尖端 “热”关机情况。

公开(公告)号：US20170189837A1

公开(公告)日：2017-07-06

申请号：US14989492

申请日：2016-01-06

Applicant: Caterpillar Inc.

Inventor： Shawn Herold ,  Matthew F. Fahrenkrug ,  Jason W. Hudgens ,  Theron J. Cassidy

IPC: B01D35/027 ,  B01D29/27

CPC classification number: B01D35/0276 ,  B01D29/27 ,  B01D29/605 ,  B01D35/18 ,  B01D53/9418 ,  B01D2201/0415 ,  B01D2251/2067 ,  B01D2258/012

Abstract: A fluid reservoir for accommodating a fluid reductant used in an SCR exhaust treatment process may include various styles or designs of bag filters to filter debris and contaminants from the reductant prior to being channeled out of the reservoir. To secure the bag filter to a header assembly accommodating the various inlet and outlet tubes, in one aspect, the bag filter is adapted to fit around a header boss descending from the header assembly and protruding into the reservoir volume. Various configurations for the bag filter can be utilized to secure the bag filter to the header boss in a manner that isolates the tubes of the header assembly from the remainder of the reservoir volume to prevent debris and the like from being unintentionally drawn out of the reservoir.

公开(公告)号：US08820059B1

公开(公告)日：2014-09-02

申请号：US13774520

申请日：2013-02-22

Applicant: Caterpillar Inc.

Inventor： Matthew F. Fahrenkrug ,  Jason W. Hudgens ,  Richard A. Crandell

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/02 ,  F02M69/04

CPC classification number: F01N3/2066 ,  F01N3/035 ,  F01N2250/02 ,  F01N2610/02 ,  F01N2610/11 ,  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。 该凹部减少到达喷射器尖端的排气量。

公开(公告)号：US20140237998A1

公开(公告)日：2014-08-28

申请号：US13774520

申请日：2013-02-22

Applicant: CATERPILLAR INC.

Inventor： Matthew F. Fahrenkrug ,  Jason W. Hudgens ,  Richard A. Crandell

IPC: F02M69/04

CPC classification number: F01N3/2066 ,  F01N3/035 ,  F01N2250/02 ,  F01N2610/02 ,  F01N2610/11 ,  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。 该凹部减少到达喷射器尖端的排气量。