System for storing an additive solution and injecting it into the exhaust gases of an engine
    3.
    发明申请
    System for storing an additive solution and injecting it into the exhaust gases of an engine 失效
    用于存储添加剂溶液并将其注入发动机废气的系统

    公开(公告)号:US20100199648A1

    公开(公告)日:2010-08-12

    申请号:US12677632

    申请日:2008-09-19

    IPC分类号: F01N3/10 B65D81/38 F04B49/00

    摘要: System for storing an additive solution and injecting it into the exhaust gases of an engine, said system comprising two tanks for storing the solution and one pump for supplying the solution from these tanks to an injection line, these two tanks being in parallel and each being connected to the pump by a branch of a supply line, the branch (I) coming from the first tank (1) giving rise to lower pressure drops than the branch (II) coming from the other tank (2) so that the solution is normally withdrawn mainly from tank (1) and is withdrawn from tank (2), and only from the latter, when tank (1) is non-operational.

    摘要翻译: 用于存储添加剂溶液并将其注入发动机的废气的系统,所述系统包括两个用于存储溶液的罐和一个用于将这些罐的溶液供应到注入管线的泵,这两个罐并联, 通过供应管线的分支连接到泵,来自第一罐(1)的分支(I)产生比来自另一罐(2)的分支(II)更低的压降,使得溶液为 通常主要从储罐(1)中取出,并且当罐(1)不可操作时,它们从罐(2)中取出,并且仅从后者抽出。

    Method for regulating a pump of an SCR system
    9.
    发明授权
    Method for regulating a pump of an SCR system 有权
    SCR系统泵的调节方法

    公开(公告)号:US09175677B2

    公开(公告)日:2015-11-03

    申请号:US13521611

    申请日:2011-01-10

    摘要: A method for regulating a motor-driven pump of an SCR system, the pump delivering a pressure, being subjected to a hydraulic torque in relation to this pressure and also to a resistive torque and being driven by an electric motor including coils supplied with a current and developing a torque in relation to this current, according to which to regulate the pump, use is made of a mechanism to measure the current in the coils of the motor, of a regulator of overall current consumed by the motor, and of a model of the relation between the current and the pressure using an estimate of part of the resistive torque, namely the dry frictions, obtained by rotating the pump under no-load conditions at different speeds and by measuring the associated current.

    摘要翻译: 一种用于调节SCR系统的电动泵的方法,所述泵输送压力,相对于该压力受到液压扭矩,并且还具有电阻力矩,并由包括提供有电流的线圈的电动机驱动 并且相对于该电流产生相对于该电流的转矩,根据该扭矩来调节泵,使用一种机构来测量电动机的线圈中的电流,由电动机消耗的总电流的调节器以及模型 使用通过在不同速度的空载条件下旋转泵并通过测量相关联的电流获得的电阻扭矩的一部分即干摩擦的估计来确定电流和压力之间的关系。