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    • 8. 发明申请
    • Method for Heating a SCR System
    • SCR系统加热方法
    • US20110027740A1
    • 2011-02-03
    • US12921617
    • 2009-03-11
    • Frederic PeucatStephane LeonardJae Sik ChoiNicolas Duret
    • Frederic PeucatStephane LeonardJae Sik ChoiNicolas Duret
    • F01N3/10
    • F01N9/00F01N3/2066F01N3/208F01N2610/02F01N2610/10F01N2610/1486F01N2900/0422F01N2900/1811Y02T10/24Y02T10/47
    • Process for heating a urea component of a SCR system comprising besides said component, a temperature sensor, a heating device in the component, according to which: 1. the temperature (Tcpt) of the liquid in the component is determined and compared to a 1st setpoint (T0); 2. if the temperature (Tcpt) is greater than the 1st setpoint (T0), step 1 is repeated; 3. if the temperature (Tcpt) is less than or equal to the 1st setpoint (T0), the heating device is actuated, 4. the time during which the heating device is actuated is measured and the heating device is stopped if this time is greater than a time t1; 5. the temperature (Tcpt) is determined after a time t2 and compared to a 2nd setpoint (T1 with T1>T0); if the temperature (Tcpt) is less than or equal to the 2nd setpoint (T1) the heating device is actuated and step 4 is repeated; 6. if the temperature (Tcpt) is greater than the 2nd septoint (T1), the heating device is stopped and step 1 is repeated.
    • 用于加热SCR系统的尿素组分的方法,包括除了所述组分,温度传感器,组分中的加热装置之外,其中:1.确定组分中液体的温度(Tcpt),并将其与第一 设定值(T0); 2.如果温度Tcpt大于第一设定值(T0),则重复步骤1。 3.如果温度(Tcpt)小于或等于第一设定值(T0),则加热装置启动4.测量加热装置启动的时间,如果此时间为 大于时间t1; 在时间t2之后确定温度(Tcpt),并与第二设定值(T1> T1)进行比较; 如果温度(Tcpt)小于或等于第二设定点(T1),则加热装置被致动并且重复步骤4; 6.如果温度Tc Tc大于第二次(T1),加热装置停止,重复步骤1。