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    Gas sensor and method for detecting particles in a gas flow
    4.
    发明授权
    Gas sensor and method for detecting particles in a gas flow 有权
    气体传感器和气体流中颗粒检测方法

    公开(公告)号：US08163161B2

    公开(公告)日：2012-04-24

    申请号：US12277952

    申请日：2008-11-25

    申请人： Jens Schneider ,  Detlef Heimann ,  Goetz Reinhardt ,  Henrico Runge ,  Lothar Diehl ,  Juergen Ruth ,  Thomas Seiler

    发明人： Jens Schneider ,  Detlef Heimann ,  Goetz Reinhardt ,  Henrico Runge ,  Lothar Diehl ,  Juergen Ruth ,  Thomas Seiler

    IPC分类号： G01N27/407

    CPC分类号： G01N27/419

    摘要： A gas sensor for detecting particles in a gas stream has a first electrochemical pump cell, which has a measuring chamber in which a first electrode is disposed to pump particles between the first measuring chamber and the gas stream. Furthermore, a second electrochemical pump cell is provided, which has a second measuring chamber in which a second electrode is disposed so as to pump particles. The second measuring chamber is connected to the gas stream via an absorber medium for absorption of the particles to be detected. This makes it possible to absorb the particles to be detected in a first operating mode using the absorber medium, and to desorb the absorbed particles in a second operating mode, and to detect the quantity of the desorbed particles. Thus, the gas sensor is able to take even low concentrations into account, and short-term measuring errors do not have such a serious effect.

    摘要翻译： 用于检测气流中的颗粒的气体传感器具有第一电化学泵电池，其具有测量室，其中设置有第一电极以在第一测量室和气流之间泵送颗粒。 此外，提供了第二电化学泵电池，其具有第二测量室，其中设置第二电极以泵送颗粒。 第二测量室经由吸收介质连接到气流，用于吸收要检测的颗粒。 这使得可以使用吸收介质以第一操作模式吸收待检测的颗粒，并且以第二操作模式解吸吸收的颗粒，并且检测解吸的颗粒的量。 因此，气体传感器能够考虑到甚至低的浓度，并且短期测量误差不具有如此严重的影响。

    Gas sensor and method for detecting particles in a gas flow
    5.
    发明申请
    Gas sensor and method for detecting particles in a gas flow 有权
    气体传感器和气体流中颗粒检测方法

    公开(公告)号：US20090152130A1

    公开(公告)日：2009-06-18

    申请号：US12277952

    申请日：2008-11-25

    申请人： Jens Schneider ,  Detlef Helmann ,  Goetz Reinhardt ,  Henrico Runge ,  Lothar Diehl ,  Juergen Ruth ,  Thomas Seiler

    发明人： Jens Schneider ,  Detlef Helmann ,  Goetz Reinhardt ,  Henrico Runge ,  Lothar Diehl ,  Juergen Ruth ,  Thomas Seiler

    IPC分类号： G01N27/26

    CPC分类号： G01N27/419

    摘要： A gas sensor 10 for detecting particles in a gas stream has a first electrochemical pump cell 14, which has a measuring chamber 16 in which a first electrode 18 is disposed to pump particles between the first measuring chamber 16 and the gas stream. Furthermore, a second electrochemical pump cell 20 is provided, which has a second measuring chamber 22 in which a second electrode 24 is disposed so as to pump particles. According to the invention, the second measuring chamber 22 is connected to the gas stream via an absorber medium 34 for absorption of the particles to be detected. This makes it possible to absorb the particles to be detected in a first operating mode using the absorber medium 34, and to desorb the absorbed particles in a second operating mode, and to detect the quantity of the desorbed particles. Thus, the gas sensor 10 is able to take even low concentrations into account, and short-term measuring errors do not have such a serious effect.

    摘要翻译： 用于检测气流中的颗粒的气体传感器10具有第一电化学泵电池14，其具有测量室16，第一电极18设置在该测量室16中以在第一测量室16和气流之间泵送颗粒。 此外，提供了第二电化学泵电池20，其具有第二测量室22，第二电极24布置成泵送颗粒。 根据本发明，第二测量室22经由吸收介质34连接到气流，用于吸收待检测的颗粒。 这使得可以使用吸收介质34以第一操作模式吸收待检测的颗粒，并且以第二操作模式解吸吸收的颗粒，并且检测解吸的颗粒的量。 因此，气体传感器10能够考虑到甚至低的浓度，并且短期测量误差不具有如此严重的影响。

    Gas sensor
    6.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US07976689B2

    公开(公告)日：2011-07-12

    申请号：US12294346

    申请日：2007-02-26

    申请人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

    发明人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

    IPC分类号： G01N27/41

    CPC分类号： G01N27/419 ,  G01N27/4067

    摘要： The invention relates to a gas sensor for determining the oxygen concentration in a gas mixture, especially in the exhaust gas of internal combustion engines. Said gas sensor comprises a pump cell having an outer pump electrode, exposed to the gas mixture, and an inner pump electrode, exposed to the gas mixture via a diffusion barrier, and a solid electrolyte body interposed between the outer pump electrode and the inner pump electrode. The gas sensor also has a reference electrode, exposed to a reference gas, and a sensor heating device. The outer pump electrode is connected to a circuit arrangement via a pump current line, the inner pump electrode via a measuring line, the reference electrode via a reference current line and the sensor heating device via two heating lines. The invention is characterized in that the pump current line and one heating line are electrically interconnected and grounded, the pump current can be supplied via the measuring line and the Nernst voltage can be tapped between the measuring line and the reference pump current line and the reference pump current flows from the reference electrode to the outer pump electrode.

    摘要翻译： 本发明涉及一种气体传感器，用于确定气体混合物中的氧浓度，特别是在内燃机的废气中。 所述气体传感器包括具有暴露于气体混合物的外部泵电极和经由扩散阻挡层暴露于气体混合物的内部泵电极的泵电池和置于外部泵电极和内部泵之间的固体电解质体 电极。 气体传感器还具有参考电极，暴露于参考气体和传感器加热装置。 外泵电极通过泵电流线路连接到电路装置，内泵电极经由测量线，参考电极经由参考电流线和传感器加热装置经由两条加热线连接。 本发明的特征在于，泵电流线路和一个加热线路电互连并接地，可以通过测量线路提供泵电流，并且可以在测量线路和参考泵电流线路之间点击能斯特电压，并且参考 泵浦电流从参考电极流到外部泵电极。

    Gas sensor
    7.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US08828205B2

    公开(公告)日：2014-09-09

    申请号：US12093681

    申请日：2006-10-16

    申请人： Lothar Diehl ,  Thomas Seiler

    发明人： Lothar Diehl ,  Thomas Seiler

    IPC分类号： G01N27/407 ,  G01N27/419 ,  F02D41/14

    CPC分类号： F02D41/1456 ,  G01N27/4072 ,  G01N27/419

    摘要： Disclosed is a gas sensor, particularly a lambda probe, for determining the oxygen concentration in the exhaust gas of an internal combustion engine that is operated using a fuel-air mixture. Said gas sensor comprises a pump cell with an outer electrode that is exposed to the exhaust gas, an inner electrode located in a measuring chamber which is separated from the exhaust gas by means of a first diffusion barrier, and an electronic circuit for generating a voltage applied between the outer electrode and the inner electrode as well as for measuring and evaluating a pump current that is generated in said process in order to draw a conclusion therefrom about the composition of the fuel-air mixture. The inventive gas sensor is characterized in that the outer electrode is arranged in an independent measuring volume which is separated by means of an additional, second diffusion barrier whose coefficient of diffusion is different from that of the first diffusion barrier while the circuit is configured so as to preferably repeatedly reverse the polarity of the voltage.

    摘要翻译： 公开了一种用于确定使用燃料 - 空气混合物操作的内燃机的废气中的氧气浓度的气体传感器，特别是λ探针。 所述气体传感器包括具有暴露于废气的外部电极的泵电池，位于通过第一扩散阻挡件与废气分离的测量室中的内部电极和用于产生电压的电子电路 施加在外电极和内电极之间，以及用于测量和评估在所述过程中产生的泵电流，以便从其中得出关于燃料 - 空气混合物的组成的结论。 本发明的气体传感器的特征在于，外部电极被布置成独立的测量体积，其通过附加的第二扩散阻挡层分离，其扩散系数与第一扩散阻挡层的系数不同，而电路被配置为 以优选地重复地反转电压的极性。

    SENSOR ELEMENT HAVING SUPPRESSED RICH GAS REACTION
    8.
    发明申请
    SENSOR ELEMENT HAVING SUPPRESSED RICH GAS REACTION 审中-公开
    具有抑制气体反应的传感器元件

    公开(公告)号：US20100126883A1

    公开(公告)日：2010-05-27

    申请号：US12521686

    申请日：2007-11-16

    申请人： Henrico Runge ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

    发明人： Henrico Runge ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

    IPC分类号： G01N27/407 ,  G01N27/26 ,  F01N11/00 ,  F02B77/08

    CPC分类号： G01N27/419

    摘要： A sensor element for determining at least one physical property of a gas mixture is provided. The sensor element has at least one first electrode and at least one second electrode, and at least one solid electrolyte that connects the at least two electrodes. The at least one first electrode is connected via at least one diffusion-resistance element to the at least one gas chamber and/or to at least one reference chamber. The at least one second electrode is connected via at least one flow-resistance element to the at least one gas chamber. The at least one flow-resistance element and the at least one diffusion-resistance element are designed in such a way that the limit current of the at least one first electrode is smaller than the limit current of the at least one second electrode.

    摘要翻译： 提供了一种用于确定气体混合物的至少一种物理性质的传感器元件。 传感器元件具有至少一个第一电极和至少一个第二电极，以及连接至少两个电极的至少一个固体电解质。 所述至少一个第一电极经由至少一个扩散电阻元件连接到所述至少一个气体室和/或至少一个参考室。 至少一个第二电极通过至少一个流阻元件连接到至少一个气室。 至少一个流阻元件和至少一个扩散电阻元件被设计成使得至少一个第一电极的极限电流小于至少一个第二电极的极限电流。

    GAS SENSOR WITH PUMP CELL AND ADDITIONAL OUTER ELECTRODE
    9.
    发明申请
    GAS SENSOR WITH PUMP CELL AND ADDITIONAL OUTER ELECTRODE 审中-公开
    气体传感器与泵单元和附加外部电极

    公开(公告)号：US20100000864A1

    公开(公告)日：2010-01-07

    申请号：US12282114

    申请日：2007-02-09

    申请人： Lothar Diehl ,  Thomas Seiler

    发明人： Lothar Diehl ,  Thomas Seiler

    IPC分类号： G01N27/419

    CPC分类号： G01N27/419

    摘要： The invention relates to a gas sensor, especially a lambda probe, for determining the oxygen concentration in the exhaust gas of an internal combustion engine that is operated with a fuel/air mixture. Said gas sensor comprises a pump cell arranged in or on a sensor element, said pump cell having a first electrode and a second electrode that are separated from the exhaust gas by at least one layer, and an electronic circuit for producing a voltage applied between the first electrode and the second electrode and for measuring and evaluating a pump current thereby produced in order to make it possible to draw conclusions therefrom on the composition of the fuel/air mixture. The invention is characterized in that an additional outer electrode is arranged on the sensor element. Said additional electrode is exposed to the exhaust gas and supplied with a negative current.

    摘要翻译： 本发明涉及用于确定用燃料/空气混合物操作的内燃机的废气中的氧气浓度的气体传感器，特别是λ探针。 所述气体传感器包括布置在传感器元件中或传感器元件上的泵电池，所述泵电池具有通过至少一层与废气分离的第一电极和第二电极，以及用于产生施加在第二电极之间的电压的电子电路 第一电极和第二电极，并且用于测量和评估由此产生的泵电流，以便可以从燃料/空气混合物的组成得出结论。 本发明的特征在于，在传感器元件上设置有附加的外部电极。 所述附加电极暴露于废气并供给负电流。

    GAS SENSOR
    10.
    发明申请
    GAS SENSOR 有权
    气体传感器

    公开(公告)号：US20090107839A1

    公开(公告)日：2009-04-30

    申请号：US12294346

    申请日：2007-02-26

    申请人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

    发明人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

    IPC分类号： G01N27/409

    CPC分类号： G01N27/419 ,  G01N27/4067

    摘要： The invention relates to a gas sensor for determining the oxygen concentration in a gas mixture, especially in the exhaust gas of internal combustion engines. Said gas sensor comprises a pump cell having an outer pump electrode, exposed to the gas mixture, and an inner pump electrode, exposed to the gas mixture via a diffusion barrier, and a solid electrolyte body interposed between the outer pump electrode and the inner pump electrode. The gas sensor also has a reference electrode, exposed to a reference gas, and a sensor heating device. The outer pump electrode is connected to a circuit arrangement via a pump current line, the inner pump electrode via a measuring line, the reference electrode via a reference current line and the sensor heating device via two heating lines. The invention is characterized in that the pump current line and one heating line are electrically interconnected and grounded, the pump current can be supplied via the measuring line and the Nernst voltage can be tapped between the measuring line and the reference pump current line and the reference pump current flows from the reference electrode to the outer pump electrode.

    摘要翻译： 本发明涉及一种气体传感器，用于确定气体混合物中的氧浓度，特别是在内燃机的废气中。 所述气体传感器包括具有暴露于气体混合物的外部泵电极和经由扩散阻挡层暴露于气体混合物的内部泵电极的泵电池和置于外部泵电极和内部泵之间的固体电解质体 电极。 气体传感器还具有参考电极，暴露于参考气体和传感器加热装置。 外泵电极通过泵电流线路连接到电路装置，内泵电极经由测量线，参考电极经由参考电流线和传感器加热装置经由两条加热线连接。 本发明的特征在于，泵电流线路和一个加热线路电互连并接地，可以通过测量线路提供泵电流，并且可以在测量线路和参考泵电流线路之间点击能斯特电压，并且参考 泵浦电流从参考电极流到外部泵电极。