Method and Apparatus for Rapidly Thawing Frozen NOx Reductant
    91.
    发明申请
    Method and Apparatus for Rapidly Thawing Frozen NOx Reductant 有权
    快速解冻冷冻NOx还原剂的方法和装置

    公开(公告)号:US20110120984A1

    公开(公告)日:2011-05-26

    申请号:US13018913

    申请日:2011-02-01

    IPC分类号: F27D11/00

    摘要: According to one aspect of the present invention, a liquid reductant tank for supplying liquid reductant to a selective catalytic reduction system is disclosed. The tank includes a tank cavity for holding a liquid reductant and being at least partially defined by one or more side walls; a liquid reductant supply line at least partially situated within the tank cavity and for communicating liquid reductant from the tank cavity to outside of the tank cavity; and a heating element situated at least partially within the liquid reductant supply line and for thawing frozen reductant situated within the supply line during cold start conditions to obtain liquid reductant for use in a selective catalytic reduction system.

    摘要翻译: 根据本发明的一个方面,公开了一种用于向选择性催化还原系统供应液体还原剂的液体还原剂罐。 该罐包括用于保持液体还原剂并且至少部分地由一个或多个侧壁限定的罐腔; 液体还原剂供应管线至少部分地位于罐腔内并用于将液体还原剂从罐腔连通到罐腔外部; 以及加热元件,其至少部分地位于液体还原剂供应管线内,并用于在冷启动条件期间解冻位于供应管线内的冷冻还原剂,以获得用于选择性催化还原系统的液体还原剂。

    METHOD FOR LEAK DETECTION IN DOSING SYSTEM
    93.
    发明申请
    METHOD FOR LEAK DETECTION IN DOSING SYSTEM 审中-公开
    计量系统中泄漏检测方法

    公开(公告)号:US20110072888A1

    公开(公告)日:2011-03-31

    申请号:US12959080

    申请日:2010-12-02

    IPC分类号: G01M3/28

    摘要: A method for detecting a leak in a dosing manifold system having a manifold body, first valve assembly, and a device capable of preventing fluid flow. The method including the steps of transporting a fluid into a control fluid circuit, trapping the fluid in the circuit with the first valve assembly and the device capable of preventing fluid flow, blocking the fluid outside the control fluid circuit, relieving pressure outside of the circuit via the first valve assembly, measuring pressure inside the circuit, and comparing the pressures with selected baseline values.

    摘要翻译: 一种用于检测具有歧管主体,第一阀组件和能够防止流体流动的装置的计量歧管系统中的泄漏的方法。 该方法包括以下步骤:将流体输送到控制流体回路中,利用第一阀组件捕获回路中的流体,以及能够防止流体流动的装置,阻止流体在控制流体回路外部,减轻电路外部的压力 通过第一阀组件测量电路内部的压力,并将压力与选定的基准值进行比较。

    APPARATUS, SYSTEM, AND METHOD FOR DIESEL EXHAUST FLUID HEATING CONTROL
    96.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR DIESEL EXHAUST FLUID HEATING CONTROL 有权
    柴油机排气加热控制装置,系统及方法

    公开(公告)号:US20110047966A1

    公开(公告)日:2011-03-03

    申请号:US12870552

    申请日:2010-08-27

    IPC分类号: F02B27/04 F01N9/00

    摘要: According to one embodiment, an apparatus for controlling the heating of diesel exhaust fluid (DEF) in a DEF delivery system includes a temperature comparison module that compares a difference between a sensed ambient air temperature and a sensed DEF tank temperature with a predetermined temperature difference threshold. Additionally, the apparatus includes a DEF heating status module that is configured to generate a DEF heating command according to (i) the sensed ambient air temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is less than the predetermined temperature threshold; and (ii) the sensed DEF tank temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is more than the predetermined temperature threshold. The apparatus also includes a DEF heating control module that is configured to control the heating of the DEF according to the DEF heating command.

    摘要翻译: 根据一个实施例,一种用于控制在DEF传送系统中的柴油机废气流体(DEF)的加热的装置包括:温度比较模块,用于将检测到的环境空气温度和感测到的DEF罐温度之间的差与预定的温度差阈值进行比较 。 另外,该装置包括DEF加热状态模块,其被配置为根据(i)感测到的环境空气温度来生成DEF加热命令,如果感测到的环境空气温度和检测到的DEF罐温度之间的差小于预定温度阈值 ; 和(ii)如果感测到的环境空气温度和检测到的DEF罐温度之间的差异大于预定温度阈值,则检测到的DEF罐温度。 该装置还包括DEF加热控制模块,其被配置为根据DEF加热命令控制DEF的加热。

    Exhaust purification device of engine
    97.
    发明授权
    Exhaust purification device of engine 有权
    发动机排气净化装置

    公开(公告)号:US07895829B2

    公开(公告)日:2011-03-01

    申请号:US11907450

    申请日:2007-10-12

    IPC分类号: F01N3/00

    摘要: A DPF and a SCR catalyst are provided in an exhaust pipe, and a urea solution addition valve is provided between the DPF and the SCR catalyst for performing addition supply of urea solution into the exhaust pipe. In a urea solution supply system, the urea solution of prescribed concentration is stored in a urea solution tank, and a urea solution pump is provided in the tank. A urea solution supply pipe is connected to the urea solution pump. A part of the urea solution supply pipe is structured as a compound pipe structure defining two passages. One of the two passages serves as a urea solution passage, and the other one serves as an engine coolant passage.

    摘要翻译: DPF和SCR催化剂设置在排气管中,并且在DPF和SCR催化剂之间设置有尿素溶液添加阀,用于进行尿素溶液加入到排气管中。 在尿素溶液供给系统中,将规定浓度的尿素溶液储存在尿素溶液罐中,在罐内设置尿素溶液泵。 尿素溶液供应管连接到尿素溶液泵。 尿素溶液供应管的一部分被构造为限定两个通道的复合管结构。 两个通道中的一个用作尿素溶液通道,另一个用作发动机冷却剂通道。

    SYSTEM FOR PURGING A DEVICE
    98.
    发明申请
    SYSTEM FOR PURGING A DEVICE 失效
    用于清洗装置的系统

    公开(公告)号:US20110030334A1

    公开(公告)日:2011-02-10

    申请号:US12988042

    申请日:2009-02-25

    IPC分类号: F02C7/232

    摘要: A system for purging a device for injecting fuel into an exhaust system of an engine comprising a device having an input and an output coupled to an exhaust system, at least one air valve and at least one fuel valve. The air valve has an input an input coupled to an air supply and an output coupled to the device through a check valve. The fuel valve has an input coupled to a fuel supply and an output coupled to the device through a check valve. When the air valve is open and the fuel valve is closed, air flows from the air supply to the device and is injected into the exhaust system of the engine. When the air valve is closed and the fuel valve is open, fuel flows from the fuel supply to the device and is injected into the exhaust system of the engine.

    摘要翻译: 一种用于吹扫用于将燃料喷射到发动机的排气系统中的装置的系统,包括具有耦合到排气系统,至少一个空气阀和至少一个燃料阀的输入和输出的装置的装置。 空气阀具有输入端,该输入端连接到空气源和通过止回阀联接到该装置的输出端。 燃料阀具有联接到燃料供应的输入端和通过止回阀耦合到该装置的输出。 当空气阀打开并且燃料阀关闭时,空气从空气供应流向装置并被注入到发动机的排气系统中。 当空气阀关闭并且燃料阀打开时,燃料从燃料供应流向装置并被注入到发动机的排气系统中。

    EVAPORATION UNIT FOR PRODUCING A GAS INCLUDING AT LEAST ONE REDUCING AGENT PRECURSOR AND/OR A REDUCING AGENT AND DEVICE AND MOTOR VEHICLE HAVING THE EVAPORATION UNIT
    99.
    发明申请
    EVAPORATION UNIT FOR PRODUCING A GAS INCLUDING AT LEAST ONE REDUCING AGENT PRECURSOR AND/OR A REDUCING AGENT AND DEVICE AND MOTOR VEHICLE HAVING THE EVAPORATION UNIT 有权
    用于生产气体的蒸发单元,包括至少一个还原剂前体和/或还原剂和装置以及具有蒸发单元的电动机

    公开(公告)号:US20110023470A1

    公开(公告)日:2011-02-03

    申请号:US12870958

    申请日:2010-08-30

    IPC分类号: F01N3/10 B01J19/00

    摘要: An evaporation unit for evaporating an aqueous solution including at least one reducing agent precursor, includes at least one evaporator cavity defined by a wall made of a material containing titanium. A heat-imparting layer disposed outside the evaporator cavity is made of a material having a thermal conductivity of at least 100 W/mK (Watts per meter and Kelvin) and is connected to the evaporator cavity in a heat-conducting manner. A heating layer disposed outside the heat-imparting layer is connected in a materially integral manner to the heat-imparting layer. The evaporator unit can be controlled in a highly dynamic manner, thereby enabling a sufficiently high amount of ammonia to be produced even during rapid load changes and consequently significant increases in the concentration of nitric oxide in the exhaust gas of the internal combustion engine. A device and a motor vehicle having the evaporation unit are also provided.

    摘要翻译: 用于蒸发包含至少一种还原剂前体的水溶液的蒸发单元包括由包含钛的材料制成的壁限定的至少一个蒸发器腔。 设置在蒸发器腔​​外部的加热层由具有至少100W / mK(瓦特/米开尔文)的热导率的材料制成,并以导热方式连接到蒸发器腔。 设置在加热层外部的加热层以材料一体的方式连接到热赋予层。 可以以高度动态的方式控制蒸发器单元,从而即使在快速负载变化期间也能够产生足够高量的氨,并且因此能够显着增加内燃机排气中的一氧化氮浓度。 还提供了具有蒸发单元的装置和机动车辆。

    Regeneration system and method for particulate traps
    100.
    发明授权
    Regeneration system and method for particulate traps 有权
    颗粒捕集器的再生系统和方法

    公开(公告)号:US07874148B2

    公开(公告)日:2011-01-25

    申请号:US11686503

    申请日:2007-03-15

    IPC分类号: F01N3/00

    摘要: An internal combustion engine system has an internal combustion engine with an intake for air and an exhaust for products of combustion. The engine has a turbocharger for pressurizing intake air in response to passage of the products of combustion. An exhaust aftertreatment device receives the exhaust from the engine to filter diesel particulates. A device for regenerating the exhaust aftertreatment device has a feed line and nozzle for injecting duel upstream of the exhaust aftertreatment device on a periodic basis. A system and method for purging the fuel line and the nozzle utilizes pressurized air from the engine turbocharger via an air tank when the regenerating device is not injecting fuel.

    摘要翻译: 内燃机系统具有内燃机,其具有用于空气的入口和用于燃烧产物的排气。 发动机具有用于响应于燃烧产物通过而对进气加压的涡轮增压器。 排气后处理装置接收来自发动机的排气以过滤柴油微粒。 用于再生排气后处理装置的装置具有用于周期性地在排气后处理装置的上游喷射歧管的供给管线和喷嘴。 当再生装置不喷射燃料时,用于吹扫燃料管线和喷嘴的系统和方法利用来自发动机涡轮增压器的加压空气经由空气罐。