METHOD, SYSTEM AND APPARATUS FOR LIQUID INJECTION INTO A GAS SYSTEM
    3.
    发明申请
    METHOD, SYSTEM AND APPARATUS FOR LIQUID INJECTION INTO A GAS SYSTEM 有权
    液体注入气体系统的方法,系统和装置

    公开(公告)号:US20120020854A1

    公开(公告)日:2012-01-26

    申请号:US12711436

    申请日:2010-02-24

    IPC分类号: B01D53/90 B01D53/34

    摘要: A method for injection of a liquid reductant (17) into an exhaust gas (30) and for evaporating and decomposing the liquid reductant at an elevated temperature includes providing an exhaust pipe (12) having an interior surface (18) and disposing the exhaust pipe in fluid communication with and upstream of a catalyst (38). The method also includes the steps of disposing an internal cone (20) within the exhaust pipe (12) generally parallel to the exhaust pipe, mounting an injector (14) to the exterior of the exhaust pipe in fluid communication with the internal cone, injecting the liquid reductant into the internal cone, and directing the exhaust gas (30) in a passage between the interior surface (18) of the exhaust pipe and the internal cone. The exhaust gas (30) is also directed within the internal cone (20). The flow of exhaust gas (30) has an elevated temperature compared to an ambient. A further step includes creating a drag force on the injected liquid reductant (17) to increase the travel time of the injected liquid reductant from the injector (14) to the catalyst (38).

    摘要翻译: 一种将液体还原剂(17)注入废气(30)中并用于在高温下蒸发和分解液体还原剂的方法包括提供具有内表面(18)的排气管(12),并将排气管 与催化剂(38)流体连通和上游。 该方法还包括以下步骤:在排气管(12)内大致平行于排气管设置内锥(20),将注射器(14)安装到与内锥体流体连通的排气管的外部,注射 液体还原剂进入内锥体,并将废气(30)引导到排气管的内表面(18)和内锥体之间的通道中。 废气(30)也被引导到内锥体(20)内。 废气(30)的流动与环境相比具有升高的温度。 进一步的步骤包括在喷射的液体还原剂(17)上产生拖曳力以增加注入的液体还原剂从喷射器(14)到催化剂(38)的行进时间。

    INJECTOR BOSS AND SYSTEM AND METHOD OF INJECTING LIQUID INTO A GAS STREAM
    4.
    发明申请
    INJECTOR BOSS AND SYSTEM AND METHOD OF INJECTING LIQUID INTO A GAS STREAM 审中-公开
    喷射器和系统以及将液体注入气体流的方法

    公开(公告)号:US20150004083A1

    公开(公告)日:2015-01-01

    申请号:US14373502

    申请日:2012-01-26

    IPC分类号: B01D53/94 F16L55/00

    摘要: An injector boss (114) for mounting an injector (110) that injects liquid reductant (U) into a flow of exhaust gas (EG) in an exhaust pipe (116) includes at least one sidewall (124) and a boss foundation (126). The boss foundation (126) is generally perpendicular to the at least one sidewall (124), and the at least one sidewall and the boss (114) define an internal area (120). A spray guard (132) extends from the boss foundation (126) into the internal area (120). The spray guard (132) h a first opening (138) for receiving liquid reductant (U) from the injector (110), and a second opening (140) for emitting liquid reductant into the internal area (120).

    摘要翻译: 一种用于将注射液体还原剂(U)的喷射器(110)安装到排气管(116)中的废气(EG)流中的喷射器凸台(114)包括至少一个侧壁(124)和凸台基座(126) )。 凸台基座126大致垂直于至少一个侧壁124,并且至少一个侧壁和凸台114限定内部区域120。 喷雾护罩(132)从凸台基座(126)延伸到内部区域(120)中。 所述喷雾护罩(132)h是用于从所述喷射器(110)接收液体还原剂(U)的第一开口(138)和用于将液体还原剂发射到所述内部区域(120)中的第二开口(140)。

    Method, system and apparatus for liquid injection into a gas system
    5.
    发明授权
    Method, system and apparatus for liquid injection into a gas system 有权
    液体注入气体系统的方法,系统和装置

    公开(公告)号:US08173088B2

    公开(公告)日:2012-05-08

    申请号:US12711436

    申请日:2010-02-24

    摘要: A method for injection reductant into an exhaust gas and for evaporating and decomposing the reductant at an elevated temperature includes providing an exhaust pipe having an interior surface and disposing the pipe in fluid communication with and upstream of a catalyst. The method includes the steps of disposing an internal cone within the pipe generally parallel to the pipe, mounting an injector to the exterior of the pipe in fluid communication with the cone, injecting the reductant into the cone, and directing the exhaust gas in a passage between the interior surface of the pipe and the cone. The exhaust gas is directed within the cone. The flow of exhaust gas has an elevated temperature compared to an ambient. A further step includes creating a drag force on the injected reductant to increase travel time of the injected reductant from the injector to the catalyst.

    摘要翻译: 将注入还原剂排入废气中并用于在升高的温度下蒸发和分解还原剂的方法包括提供具有内表面的排气管,并且将管设置在催化剂的流体连通和上游。 该方法包括以下步骤:将大致平行于管道的内锥体设置在管内,将注射器安装到与锥体流体连通的管的外部,将还原剂注入锥体,并将废气引导至通道 在管的内表面和锥体之间。 废气被引导到锥体内。 与环境相比,排气的流量具有升高的温度。 进一步的步骤包括在注射的还原剂上产生牵引力以增加注入的还原剂从注射器到催化剂的行进时间。

    SCR mixer
    6.
    发明授权
    SCR mixer 有权
    SCR搅拌机

    公开(公告)号:US08291696B2

    公开(公告)日:2012-10-23

    申请号:US12577742

    申请日:2009-10-13

    IPC分类号: F01N3/00

    摘要: A device and method for catalytic reduction of NOx in gaseous products of combustion by directing the products of combustion through a particulate filter (32) and then into a mixing zone (28) through separate flow passages (34, 36) at respective velocities greater than that at which products of combustion leave the filter, by causing an injector (38) to introduce urea solution through a nozzle (40) aimed toward the mixing zone along a slant direction (42) to, and across, flow entering the mixing zone through a first (34) of the separate flow passages and ultimately toward a far wall (44) of the mixing zone relative to the nozzle while directing exhaust flow entering the mixing zone through a second (36) of the separate flow passages to enter the mixing zone between the first flow passage and far wall, and by directing flow leaving the mixing zone through an SCR catalyst (48).

    摘要翻译: 一种用于通过将燃烧产物引导通过颗粒过滤器(32)然后通过分开的流动通道(34,36)以大于 燃烧产物离开过滤器,通过使喷射器(38)将尿素溶液通过喷嘴(40)引导,所述喷嘴(40)朝向倾斜方向(42)的混合区域流过并穿过进入混合区域的流通过 分离的流动通道的第一(34)并且最终朝向相对于喷嘴的混合区域的远壁(44),同时引导进入混合区域的排出流通过第二(36)分离的流动通道进入混合 并且通过引导通过SCR催化剂(48)离开混合区的流动。

    EXHAUST THROTTLE VALVE SYSTEM AND METHOD FOR DIESEL PARTICULATE FILTER REGENERATION
    7.
    发明申请
    EXHAUST THROTTLE VALVE SYSTEM AND METHOD FOR DIESEL PARTICULATE FILTER REGENERATION 审中-公开
    用于柴油颗粒过滤器再生的排气阀门系统和方法

    公开(公告)号:US20110252765A1

    公开(公告)日:2011-10-20

    申请号:US12759733

    申请日:2010-04-14

    IPC分类号: F01N9/00 F01N3/025

    摘要: An exhaust gas aftertreatment system (10) for a vehicle having an engine (14) includes a fluid passageway (20) extending from the engine to an ambient (18) for fluidly communicating exhaust gas (F). A diesel particulate filter (24) is disposed on the fluid passageway (20) downstream of the engine (14). At least one exhaust throttle valve (30A-30D) is located downstream of the engine (14) on the fluid passageway (20). When the exhaust throttle valve (30A-30D) is actuated, the valve obstructs the flow of exhaust gas (F) and increases the temperature of the exhaust gas. The heated exhaust gas (F) causes regeneration at the diesel particulate filter (24).

    摘要翻译: 用于具有发动机(14)的车辆的废气后处理系统(10)包括从发动机延伸到用于流体连通排气(F)的环境(18)的流体通道(20)。 柴油机微粒过滤器(24)设置在发动机(14)下游的流体通道(20)上。 至少一个排气节流阀(30A-30D)位于流体通道(20)上的发动机(14)的下游。 当排气节流阀(30A-30D)被致动时,阀阻碍废气(F)的流动并且增加废气的温度。 加热废气(F)在柴油机微粒过滤器(24)处引起再生。

    EXHAUST VALVE ACTUATION SYSTEM FOR DIESEL PARTICULATE FILTER REGENERATION
    8.
    发明申请
    EXHAUST VALVE ACTUATION SYSTEM FOR DIESEL PARTICULATE FILTER REGENERATION 审中-公开
    用于柴油颗粒过滤器再生的排气阀执行系统

    公开(公告)号:US20110203258A1

    公开(公告)日:2011-08-25

    申请号:US12712282

    申请日:2010-02-25

    IPC分类号: F01N9/00 F01N3/023 F01L9/02

    摘要: An exhaust valve actuation system (30) for initiating a regeneration event at a diesel particulate filter (24) includes an engine control module (42) associated with an engine (14). A plurality of exhaust valves (32) correspond to a plurality of engine cylinders (C1-C6). When either a predetermined amount of back pressure or a predetermined temperature, or both, are communicated to the engine control module (42), the engine control module actuates at least one exhaust valve (32) to open. Gas or gas-fuel mixture is compressed and heated inside of the cylinder (C1) corresponding to the opened exhaust valve (32). At least one exhaust valve (32) is not opened by the engine control module (42), which permits combustion inside the corresponding cylinder (C2).

    摘要翻译: 用于在柴油机微粒过滤器(24)处启动再生事件的排气门致动系统(30)包括与发动机(14)相关联的发动机控制模块(42)。 多个排气阀(32)对应于多个发动机气缸(C1-C6)。 当预定量的背压或预定温度或两者都传送到发动机控制模块(42)时,发动机控制模块致动至少一个排气门(32)打开。 在对应于打开的排气阀(32)的气缸(C1)的内部压缩和加热气体或气体 - 燃料混合物。 至少一个排气阀(32)不被发动机控制模块(42)打开,这允许对应的气缸(C2)内的燃烧。

    QUICK-HEATING OF A UREA SUPPLY CONDUIT FOR AN ENGINE EXHAUST AFTER-TREATMENT SYSTEM
    9.
    发明申请
    QUICK-HEATING OF A UREA SUPPLY CONDUIT FOR AN ENGINE EXHAUST AFTER-TREATMENT SYSTEM 审中-公开
    用于发动机排放后处理系统的尿素供应管的快速加热

    公开(公告)号:US20110030349A1

    公开(公告)日:2011-02-10

    申请号:US12535023

    申请日:2009-08-04

    IPC分类号: F02D45/00 F01P5/10 F01N3/10

    摘要: A urea supply conduit (68) has a wall of good thermal conductivity. Urea solution in liquid phase is sucked out of a tank (24) through conduit (68) and delivered to a point of use (22) in an engine exhaust after-treatment system (18) through which products of combustion are conveyed from engine combustion chambers (16) to atmosphere. Liquid engine coolant is circulated through a coolant conduit (66) that has a wall of good thermal conductivity placed side-by-side and in physical association with the urea supply conduit wall to form a thermal conduction path for heat transfer between coolant in the coolant conduit and urea in the urea supply conduit, more quickly thawing any frozen urea.

    摘要翻译: 尿素供应管道(68)具有良好导热性的壁。 液相中的尿素溶液通过管道(68)从罐(24)中吸出并被输送到发动机排气后处理系统(18)中的使用点(22),从发动机排气后处理系统 室(16)到大气。 液体发动机冷却剂通过冷却剂管道(66)循环,冷却剂管道(66)具有并排放置的良好导热壁并且与尿素供应导管壁物理相关联以形成用于在冷却剂中的冷却剂之间的热传递的热传导路径 导管和尿素在尿素供应管道中,更快地解冻任何冷冻尿素。

    SYSTEM AND METHOD OF GENERATING SELECTIVE CATALYST REDUCTION DOSING ESTIMATE FOR A DIESEL ENGINE
    10.
    发明申请
    SYSTEM AND METHOD OF GENERATING SELECTIVE CATALYST REDUCTION DOSING ESTIMATE FOR A DIESEL ENGINE 审中-公开
    柴油发动机选择性催化降低剂量估算系统及方法

    公开(公告)号:US20130160521A1

    公开(公告)日:2013-06-27

    申请号:US13806210

    申请日:2010-06-30

    IPC分类号: G01M15/08

    摘要: A control system for an engine having an in-cylinder pressure sensor and a selective catalytic reduction device comprises an electronic control module and an in-cylinder pressure sensor. The electronic control module has a processor and a memory. The in-cylinder pressure sensor is disposed in fluid communication with a cylinder of an engine. The incylinder pressure sensor is disposed in communication with the electronic control module. The in-cylinder pressure sensor generates an output indicative of a pressure within the cylinder of the engine. The processor of the electronic control module is programmed to generate an estimate of an amount of NOx produced during combustion, and calculate an amount of reductant required to react with the NOx to limit NOx emissions to a predetermined level.

    摘要翻译: 具有缸内压力传感器和选择性催化还原装置的发动机的控制系统包括电子控制模块和缸内压力传感器。 电子控制模块具有处理器和存储器。 缸内压力传感器设置成与发动机气缸流体连通。 气缸压力传感器设置成与电子控制模块连通。 缸内压力传感器产生表示发动机气缸内的压力的输出。 电子控制模块的处理器被编程以产生在燃烧期间产生的NOx的量的估计,并且计算与NOx反应以将NOx排放限制到预定水平所需的还原剂的量。