METHOD AND METERING SYSTEM FOR REDUCING POLLUTANTS IN MOTOR VEHICLE EXHAUST GASES
    3.
    发明申请
    METHOD AND METERING SYSTEM FOR REDUCING POLLUTANTS IN MOTOR VEHICLE EXHAUST GASES 有权
    电动汽车排气污染物减少方法与计量系统

    公开(公告)号:US20090025373A1

    公开(公告)日:2009-01-29

    申请号:US12280040

    申请日:2007-01-26

    IPC分类号: F01N3/00

    摘要: A method of metering a fluid, pollutant-reducing medium, in particular an aqueous urea solution, into a motor vehicle exhaust system is proposed, in which the fluid medium is delivered to a nozzle module, in particular a nozzle or a valve, and introduced into the exhaust system by the nozzle module. A transport system arranged upstream of the nozzle module is activated with pulse-width modulation. The method and the associated metering system ensure that, in particular, a reducing agent is arranged or metered precisely and in a robust manner relative to degrees of coldness, with the use of few components.

    摘要翻译: 提出了一种将流体,污染物减少介质,特别是尿素水溶液计量到机动车辆排气系统中的方法,其中将流体介质输送到喷嘴模块,特别是喷嘴或阀门,并引入 通过喷嘴模块进入排气系统。 布置在喷嘴模块上游的输送系统通过脉冲宽度调制而被激活。 该方法和相关的计量系统确保特别地,使用少量组分,精确地并且以相对于冷度的强度方式以鲁棒的方式布置或计量还原剂。

    METHOD FOR METERING A REAGENT INTO AN EXHAUST GAS DUCT AND DEVICE FOR CARRYING OUT THE METHOD
    4.
    发明申请
    METHOD FOR METERING A REAGENT INTO AN EXHAUST GAS DUCT AND DEVICE FOR CARRYING OUT THE METHOD 有权
    将试剂置于排气管道中的方法和用于实施该方法的装置

    公开(公告)号:US20120017571A1

    公开(公告)日:2012-01-26

    申请号:US13181640

    申请日:2011-07-13

    IPC分类号: F01N3/00

    摘要: The invention proposes a method for metering a reagent, in which the reagent is sprayed into a spray tube (12) via an electrically activated metering valve (24), and is mixed in the spray tube (12) with compressed air, and in which the reagent mixed with compressed air is introduced by means of the spray tube (12) into an exhaust gas duct (10) and is atomized, and a device for carrying out the method. The procedure according to the invention is distinguished in that the duration of the metering valve activation signal (34) is corrected depending on the differential pressure between the hydraulic pressure (p_Rea_hyd) of the reagent in the metering valve (24) and the pneumatic pressure (p_D_pneu) in the spray tube (12). The procedure according to the invention permits a high degree of accuracy in the metering of the reagent.

    摘要翻译: 本发明提出了一种计量试剂的方法,其中试剂通过电激活的计量阀(24)喷射到喷射管(12)中,并在喷射管(12)中与压缩空气混合,其中 与压缩空气混合的试剂通过喷射管(12)引入排气管道(10)并进行雾化,以及用于实施该方法的装置。 根据本发明的过程的区别在于,计量阀启动信号(34)的持续时间根据计量阀(24)中的试剂的液压(p_Rea_hyd)与气动压力( p_D_pneu)在喷射管(12)中。 根据本发明的方法允许在试剂的计量中高度准确。

    Metering device and internal combustion engine having a metering device
    5.
    发明授权
    Metering device and internal combustion engine having a metering device 失效
    计量装置和具有计量装置的内燃机

    公开(公告)号:US07877990B2

    公开(公告)日:2011-02-01

    申请号:US11576186

    申请日:2005-07-07

    IPC分类号: F01N3/00 F01N3/10

    摘要: A metering device for introducing an operating medium into an exhaust manifold of an internal combustion engine, the device comprising a cooling system for cooling an injector module of the metering device. The cooling system is provided with a cooling circuit encompassing at least one cooling fluid and at least one cooling device which dissipates heat from the cooling circuit. A first portion of the cooling circuit is disposed at least in part below the cooling device and/or a second portion of the cooling circuit is located at least in part above a point that heats the cooling circuit, especially above the injector module.

    摘要翻译: 一种用于将操作介质引入内燃机的排气歧管的计量装置,该装置包括用于冷却计量装置的注射器模块的冷却系统。 冷却系统设置有包括至少一个冷却流体的冷却回路和从冷却回路散热的至少一个冷却装置。 冷却回路的第一部分至少部分地设置在冷却装置的下方和/或冷却回路的第二部分至少部分地位于加热冷却回路的点以上,特别是在喷射器模块上方。

    Metering Device and Internal Combustion Engine Having a Metering Device
    9.
    发明申请
    Metering Device and Internal Combustion Engine Having a Metering Device 失效
    具有计量装置的计量装置和内燃机

    公开(公告)号:US20070266698A1

    公开(公告)日:2007-11-22

    申请号:US11576186

    申请日:2005-07-07

    IPC分类号: F01N3/00

    摘要: The invention relates to a dosing device (100) for introducing an operating means especially into an exhaust manifold (140) of an internal combustion engine (210). Said dosing device (100) comprises a cooling system for cooling particularly an injector module (110) of the dosing device (100). The cooling system is provided with a cooling circuit (115) encompassing at least one cooling fluid and at least one cooling device (120) which dissipates heat from the cooling circuit (115). A first portion (115a) of the cooling circuit (115) is disposed at least in part below the cooling device (120) and/or a second portion (115b) of the cooling circuit (115) is located at least in part above a point that heats the cooling circuit (115), especially above the injector module (110).

    摘要翻译: 本发明涉及一种用于将操作装置特别引入内燃机(210)的排气歧管(140)中的计量装置(100)。 所述计量装置(100)包括用于冷却剂量装置(100)的喷射器模块(110)的冷却系统。 冷却系统设置有包含至少一个冷却流体的冷却回路(115)和从冷却回路(115)散热的至少一个冷却装置(120)。 冷却回路(115)的第一部分(115a)至少部分地设置在冷却装置(120)的下方,和/或冷却回路(115)的第二部分(115b)至少部分地位于 高于加热冷却回路(115),特别是在喷射器模块(110)上方的点。