Method and device pertaining to cooling of dosing units of SCR systems
    1.
    发明授权
    Method and device pertaining to cooling of dosing units of SCR systems 有权
    关于冷却SCR系统计量单元的方法和装置

    公开(公告)号:US09212581B2

    公开(公告)日:2015-12-15

    申请号:US13704724

    申请日:2011-06-17

    Abstract: A method pertaining to an SCR system which includes a dosing unit (250) to supply reducing agent to an exhaust duct (240) for exhaust cleaning, and a container for reducing agent: the steps of determining (s320) a cooling requirement of the dosing unit (250) and choosing (s340) a limit level for reducing agent in the container (205) on the basis of the cooling requirement. A computer program product containing program code (P) implements a method according to the invention. A device of an SCR system includes a dosing unit (250) to supply reducing agent to an exhaust duct (240) for exhaust cleaning. A motor vehicle (100) is equipped with the device.

    Abstract translation: 一种与SCR系统相关的方法,其包括向排气管道(240)供应还原剂用于排气清洁的计量单元(250)和用于还原剂的容器:以下步骤:确定(s320)给料剂的冷却需求 单元(250),并根据冷却要求选择容器(205)中的还原剂的极限水平(s340)。 包含程序代码(P)的计算机程序产品实现了根据本发明的方法。 SCR系统的装置包括用于向排气管道(240)供应还原剂用于排气清洁的计量单元(250)。 机动车辆(100)配备有该装置。

    METHOD AND DEVICE PERTAINING TO COOLING OF DOSING UNITS OF SCR SYSTEMS
    2.
    发明申请
    METHOD AND DEVICE PERTAINING TO COOLING OF DOSING UNITS OF SCR SYSTEMS 有权
    观察SCR系统下料单元的冷却方法和装置

    公开(公告)号:US20130133310A1

    公开(公告)日:2013-05-30

    申请号:US13704724

    申请日:2011-06-17

    Abstract: A method pertaining to an SCR system which includes a dosing unit (250) to supply reducing agent to an exhaust duct (240) for exhaust cleaning, and a container for reducing agent: the steps of determining (s320) a cooling requirement of the dosing unit (250) and choosing (s340) a limit level for reducing agent in the container (205) on the basis of the cooling requirement. A computer programme product containing programme code (P) implements a method according to the invention. A device of an SCR system includes a dosing unit (250) to supply reducing agent to an exhaust duct (240) for exhaust cleaning. A motor vehicle (100) is equipped with the device.

    Abstract translation: 一种与SCR系统相关的方法,其包括向排气管道(240)供应还原剂用于排气清洁的计量单元(250)和用于还原剂的容器:以下步骤:确定(s320)给料剂的冷却需求 单元(250),并根据冷却要求选择容器(205)中的还原剂的极限水平(s340)。 包含程序代码(P)的计算机程序产品实现了根据本发明的方法。 SCR系统的装置包括用于向排气管道(240)供应还原剂用于排气清洁的计量单元(250)。 机动车辆(100)配备有该装置。

    METHOD PERTAINING TO AIR REMOVAL FROM A HC DOSING SYSTEM AND A HC DOSING SYSTEM
    3.
    发明申请
    METHOD PERTAINING TO AIR REMOVAL FROM A HC DOSING SYSTEM AND A HC DOSING SYSTEM 审中-公开
    从HC排气系统和HC排气系统中消除空气的方法

    公开(公告)号:US20130125532A1

    公开(公告)日:2013-05-23

    申请号:US13805106

    申请日:2011-06-20

    Abstract: A method pertaining to an HC dosing system in which fuel in liquid form is supplied to a feed device (230) via which fuel is supplied from a container (205) to at least one consumption point (250) continuously detecting the feed pressure (P) which the feed device (230) furnishes. Also, the step of controlling the operation of the feed device (230) on the basis of changes (P′) in the feed pressure (P), to reduce the impact of unwanted air supply at the feed device (230). Also a computer programme product containing programme code (P) for a computer (200; 210) for implementing the method. Also an HC dosing system and a motor vehicle (100) which is equipped with the HC dosing system are disclosed.

    Abstract translation: 一种与HC配量系统相关的方法,其中液体形式的燃料被供应到供给装置(230),燃料从容器(205)供应至至少一个消耗点(250),连续检测进料压力(P ),其中馈送装置(230)提供。 此外,基于进给压力(P)中的变化(P')控制进给装置(230)的操作的步骤,以减少在进给装置(230)处的不希望的空气供应的冲击。 还包括用于实现该方法的用于计算机(200; 210)的程序代码(P)的计算机程序产品。 还公开了配备有HC给料系统的HC给料系统和机动车辆(100)。

    Method and device pertaining to dosing unit of SCR system
    5.
    发明授权
    Method and device pertaining to dosing unit of SCR system 有权
    SCR系统给料单元的方法和装置

    公开(公告)号:US09399940B2

    公开(公告)日:2016-07-26

    申请号:US13805024

    申请日:2011-06-20

    Abstract: A method pertaining to an SCR system for cleaning of exhaust gases from an engine including a dosing unit (250) to supply a reducing agent to an exhaust duct (240): Determining (s340) whether there is an undesired temperature level of the dosing unit (250). If one is found, removing (s360) warmed reducing agent from the dosing unit (250) and supplying it to the exhaust duct (240). Calculating (s350) and removing an amount of reducing agent based on a prevailing temperature of the dosing unit (250), or removing warmed reducing agent. Also a computer program product containing program code (P) for a computer (200; 210) for implementing the method. Also a device of an SCR system and a motor vehicle (100) which is equipped with the device are disclosed.

    Abstract translation: 一种与用于清洁来自发动机的排气的SCR系统相关的方法,所述发动机包括用于向排气管道(240)供应还原剂的计量单元(250):确定(s340)配量单元是否存在不期望的温度水平 (250)。 如果找到,则从定量给料单元(250)中取出(s360)加热的还原剂并将其提供给排气管道(240)。 计算(s350)并基于给料单元(250)的主要温度除去一定量的还原剂,或除去加热的还原剂。 还包括用于实现该方法的用于计算机(200; 210)的程序代码(P)的计算机程序产品。 还公开了一种装备有该装置的SCR系统和机动车辆(100)的装置。

    METHOD AND DEVICE PERTAINING TO LIMITING THE TEMPERATURE OF A HC DOSING UNIT IN AN EXHAUST SYSTEM
    7.
    发明申请
    METHOD AND DEVICE PERTAINING TO LIMITING THE TEMPERATURE OF A HC DOSING UNIT IN AN EXHAUST SYSTEM 审中-公开
    在排气系统中限制HC排放单元的温度的方法和装置

    公开(公告)号:US20130086889A1

    公开(公告)日:2013-04-11

    申请号:US13704356

    申请日:2011-06-20

    Abstract: A method pertaining to an HC dosing system for cleaning of exhaust gases from an engine (150), including a dosing unit in thermal contact with the engine's exhaust system (250) and supplying a fuel to an exhaust duct (240) of the exhaust system, the step of determining (s340) whether there is an undesired temperature level of the dosing unit (250), and if so, limiting (s360) the temperature of the exhaust duct (240) by control of operation of the engine. Also a computer programme product containing programme code (P) for a computer (200; 210; 400) for implementing the method, and also to a device and a motor vehicle (100) which is equipped with the device.

    Abstract translation: 一种用于清洁来自发动机(150)的废气的HC给料系统的方法,包括与所述发动机的排气系统(250)热接触的计量单元,并将燃料供应到排气系统的排气管道(240) ,确定(s340)是否存在计量单元(250)的不期望的温度水平的步骤,如果是,则通过控制发动机的操作来限制(s360)排气管道(240)的温度。 还包括用于实现该方法的计算机(200; 210; 400)的程序代码(P)的计算机程序产品,还包括装备有该装置的装置和机动车辆(100)。

    METHOD AND A DEVICE PERTAINING TO THE SERVICE NEED OF A FILTER IN A SCR-SYSTEM'S LIQUID SUPPLY DEVICE
    8.
    发明申请
    METHOD AND A DEVICE PERTAINING TO THE SERVICE NEED OF A FILTER IN A SCR-SYSTEM'S LIQUID SUPPLY DEVICE 有权
    在SCR系统的液体供应装置中需要过滤器所需的方法和装置

    公开(公告)号:US20130078156A1

    公开(公告)日:2013-03-28

    申请号:US13642939

    申请日:2011-04-19

    Abstract: Disclosed is a method pertaining to SCR systems for exhaust cleaning whereby liquid is supplied to a feed device via which it is supplied to a dosing unit at a consumption point of the SCR system. The method includes continuously determining cumulative amounts of liquid dosed via the dosing unit. Need for replacement or cleaning of a filter unit for said liquid is also determined on the basis of the cumulative amounts of liquid dosed. The method further includes dosing at least part of the liquid supplied via the feed device and feeding undosed liquid back in a return flow to enable it to be supplied again to the feed device. Also disclosed is a computer program product that includes code for a computer for implementing the disclosed method.

    Abstract translation: 公开了一种关于用于排气清洗的SCR系统的方法,其中液体被供应到进料装置,通过其供应到SCR系统的消耗点处的给料单元。 该方法包括连续测定通过给药单元计量的液体的累积量。 用于所述液体的过滤器单元的更换或清洁的需要也是基于所投加的液体的累积量来确定的。 所述方法还包括给予供给装置的液体的至少一部分,并将未送出的液体送回到返回流中,使其能够再次供给到进料装置。 还公开了一种计算机程序产品,其包括用于实现所公开方法的计算机的代码。

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