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    Method for controlling a valve for an exhaust system
    2.
    发明公开
    Method for controlling a valve for an exhaust system 有权
    一种用于控制排气阀系统的方法

    公开(公告)号：EP1512851A3

    公开(公告)日：2005-10-19

    申请号：EP04020841.5

    申请日：2004-09-02

    申请人： Arvin Technologies, Inc.

    发明人： Speer, Gregg

    IPC分类号： F01N5/02 ,  B60H1/18

    CPC分类号： F01N5/02 ,  B60H1/18 ,  F01N13/087 ,  F01N2410/00 ,  F01N2410/10 ,  Y02T10/16

    摘要： In an exhaust gas heat exchanger system of a combustion engine, having a bypass duct 9 and a heat exchanger duct 5 with a heat exchanger 7, a valve 10 is controlled by a method comprising the following steps: First, it is determined that heat is to be transferred from exhaust gas flowing through the exhaust system to the heat exchanger 7. Thereupon, the valve 10 is switched into a first position in which the entire exhaust gas flows through the heat exchanger duct 5. A pressure drop across the heat exchanger system is monitored either directly or indirectly. If the pressure drop reaches a predefined limit, the valve 10 is switched into an intermediate position, the intermediate position resulting in a first portion of the exhaust gas flowing through the heat exchanger duct 5 and a remaining portion flowing through the bypass duct 9, thereby reducing the pressure drop across the heat exchanger system. If the pressure drop again reaches a predefined limit, the valve 10 is switched into a second position, the second position resulting in a second portion of the exhaust gas flowing through the heat exchanger duct, the second portion being smaller than the first portion, thereby further reducing the pressure drop across the heat exchanger system.

    Method for controlling a valve for an exhaust system
    4.
    发明公开
    Method for controlling a valve for an exhaust system 有权
    用于控制排气系统的阀的方法

    公开(公告)号：EP1512851A2

    公开(公告)日：2005-03-09

    申请号：EP04020841.5

    申请日：2004-09-02

    申请人： Arvin Technologies, Inc.

    发明人： Speer, Gregg

    IPC分类号： F01N5/02 ,  B60H1/18

    CPC分类号： F01N5/02 ,  B60H1/18 ,  F01N13/087 ,  F01N2410/00 ,  F01N2410/10 ,  Y02T10/16

    摘要： In an exhaust gas heat exchanger system of a combustion engine, having a bypass duct 9 and a heat exchanger duct 5 with a heat exchanger 7, a valve 10 is controlled by a method comprising the following steps: First, it is determined that heat is to be transferred from exhaust gas flowing through the exhaust system to the heat exchanger 7. Thereupon, the valve 10 is switched into a first position in which the entire exhaust gas flows through the heat exchanger duct 5. A pressure drop across the heat exchanger system is monitored either directly or indirectly. If the pressure drop reaches a predefined limit, the valve 10 is switched into an intermediate position, the intermediate position resulting in a first portion of the exhaust gas flowing through the heat exchanger duct 5 and a remaining portion flowing through the bypass duct 9, thereby reducing the pressure drop across the heat exchanger system. If the pressure drop again reaches a predefined limit, the valve 10 is switched into a second position, the second position resulting in a second portion of the exhaust gas flowing through the heat exchanger duct, the second portion being smaller than the first portion, thereby further reducing the pressure drop across the heat exchanger system.

    摘要翻译： 在具有旁通管道9和带热交换器7的热交换器管道5的内燃机废气热交换器系统中，阀门10通过包括以下步骤的方法来控制：首先，确定热量是 从流过排气系统的废气转移到热交换器7.于是，阀10被切换到第一位置，在第一位置中，全部废气流过热交换器管道5.穿过热交换器系统的压降 直接或间接监测。 如果压降达到预定限度，则将阀10切换到中间位置，中间位置导致排气的第一部分流过热交换器管道5并且剩余部分流过旁路管道9，由此 减少热交换器系统上的压降。 如果压降再次达到预定极限，则将阀10切换到第二位置，第二位置导致排气的第二部分流过热交换器管道，第二部分比第一部分小，由此 进一步降低热交换器系统的压降。