Gas sensor and corresponding production method
    11.
    发明授权
    Gas sensor and corresponding production method 失效
    气体传感器及相应的生产方法

    公开(公告)号:US06395161B1

    公开(公告)日:2002-05-28

    申请号:US09509270

    申请日:2000-03-23

    IPC分类号: G01N27406

    摘要: A gas sensor and a method for its manufacture are described. The gas sensor has a solid electrolyte having at least one measuring electrode and one porous protective coating. The measuring electrode has an electrically conductive base layer and a further layer, the further layer god being deposited in the pores of the porous protective coating adjacent to the base layer via galvanic deposition. In order to deposit the further layer via galvanic deposition, the basic body, which has been fused with the base layer and the protective coating via vitrification, is immersed in a galvanizing bath, the base layer being connected as the cathode.

    摘要翻译: 描述了一种气体传感器及其制造方法。 气体传感器具有固体电解质,其具有至少一个测量电极和一个多孔保护涂层。 测量电极具有导电基底层和另一层,另外的层神经由电沉积沉积在与基底层相邻的多孔保护涂层的孔中。 为了通过电沉积沉积另外的层,已经通过玻璃化与基底层和保护涂层熔合的基体浸入镀锌浴中,基底层作为阴极连接。

    Electrochemical sensor
    12.
    发明授权
    Electrochemical sensor 失效
    电化学传感器

    公开(公告)号:US06270639B1

    公开(公告)日:2001-08-07

    申请号:US09239291

    申请日:1999-01-29

    IPC分类号: G01N27409

    CPC分类号: G01N27/417

    摘要: An electrochemical sensor determining a gas concentration of the measuring gas. The sensor has an electrochemical element including a first solid electrolyte body having an electrochemical pump cell and a first (external pump) and a second (internal pump) electrode and having a gas chamber which is connected to the measuring gas chamber via a gas supply opening and in which the second electrode is arranged. The electrochemical element also includes a second solid electrolyte body having an electrochemical sensor cell (e.g., a Nernst cell) and a third and fourth electrode, each electrode having a lead for the electrical contacting. The leads of the first and second electrodes are decoupled capacitively from the lead of at least the fourth electrode by a device.

    摘要翻译: 确定测量气体的气体浓度的电化学传感器。 传感器具有电化学元件,其包括具有电化学泵电池的第一固体电解质体和第一(外部泵)和第二(内部泵)电极,并且具有通过气体供给开口连接到测量气体室的气体室 并且其中布置有第二电极。 电化学元件还包括具有电化学传感器单元(例如能斯特电池)和第三和第四电极的第二固体电解质体,每个电极具有用于电接触的引线。 第一和第二电极的引线通过器件从至少第四电极的引线电容性地去耦合。

    Sensor arrangement for determining gas components and/or gas
concentrations of gas mixtures
    13.
    发明授权
    Sensor arrangement for determining gas components and/or gas concentrations of gas mixtures 失效
    用于确定气体组分和/或气体混合物气体浓度的传感器装置

    公开(公告)号:US5505837A

    公开(公告)日:1996-04-09

    申请号:US290704

    申请日:1994-12-12

    CPC分类号: G01N27/419

    摘要: A sensor arrangement for determining at least one of gas components and gas concentrations of gas mixtures including CO, NO.sub.x and HC in exhaust gases of internal combustion engines, includes a measuring element which has a sensitive region; and a pump cell that includes a solid electrolyte and inner and outer pump electrodes which are opposingly disposed at least on the solid electrolyte and which effect an oxygen transfer to the measuring element, wherein the pump cell and the measuring element are spatially separated from one another, are located in different temperature zones during operation of the sensor arrangement, and are connected to one another by a diffusion segment through which oxygen can diffuse from the pump cell to the measuring element.

    摘要翻译: PCT No.PCT / DE94 / 00289 Sec。 371日期1994年12月12日第 102(e)日期1994年12月12日PCT 1994年3月17日PCT公布。 公开号WO94 / 24550 PCT 日期:1994年10月27日。一种用于确定内燃机废气中的CO,NO x和HC气体混合气体组分和气体浓度中的至少一种的传感器装置,包括具有敏感区域的测量元件; 以及泵电池,其包括固体电解质和内部和外部泵电极,所述内部和外部泵电极相对设置在至少在所述固体电解质上并且对所述测量元件进行氧传递,其中所述泵浦单元和所述测量元件在空间上彼此分离 位于传感器装置的操作期间的不同温度区域中,并且通过扩散段彼此连接,通过该扩散段,氧气可以从泵电池扩散到测量元件。

    Method for determining the fuel/air ratio in the individual cylinders of a multi-cylinder internal combustion engine
    15.
    发明授权
    Method for determining the fuel/air ratio in the individual cylinders of a multi-cylinder internal combustion engine 失效
    用于确定多缸内燃机的各个气缸中的燃料/空气比的方法

    公开(公告)号:US06910471B2

    公开(公告)日:2005-06-28

    申请号:US10363072

    申请日:2002-06-01

    摘要: A method is presented for determining the fuel/air ratio in the individual cylinders (single cylinder lambda) of an internal combustion engine having a plurality of cylinders, whose exhaust gases mix together in a common exhaust gas pipe system, from the signal of an exhaust gas probe, whose mounting location lies in the common exhaust gas pipe system, with the aid of an invertible model for the intermixing of the exhaust gases at the mounting location of the exhaust gas probe. The method is distinguished in that, in the determination of the single cylinder lambda from the signal of the one exhaust gas probe evaluated with the aid of the inverted model, the rotational angle position of the exhaust gas probe at its mounting position is taken into consideration.

    摘要翻译: 提出了一种用于确定具有多个气缸的内燃机的单个气缸(单缸lambda)中的燃料/空气比的方法,所述多个气缸的排气在共同的废气管道系统中混合在一起,与排气的信号 气体探头,其安装位置位于普通废气管道系统中,借助于可逆模型,用于在排气探针的安装位置处混合排气。 该方法的区别在于,在借助于反转模型评估的一个排气探头的信号中确定单个气缸λ时,考虑排气探针在其安装位置的旋转角度位置 。

    Measurement sensor for determining an oxygen concentration in a gas mixture
    16.
    发明授权
    Measurement sensor for determining an oxygen concentration in a gas mixture 失效
    用于测定气体混合物中的氧浓度的测量传感器

    公开(公告)号:US06818111B1

    公开(公告)日:2004-11-16

    申请号:US09554041

    申请日:2000-10-12

    IPC分类号: G01N27409

    CPC分类号: G01N27/4065

    摘要: A probe is described for determining an oxygen concentration in a gas mixture, in particular in the exhaust gas of internal combustion engines, having a Nernst measuring cell, which has a first electrode (Nernst electrode) which is exposed to the gas mixture to be measured via a diffusion barrier, a second electrode (reference electrode) which is exposed to a reference gas, and a solid electrolyte body arranged between the first and the second electrode, and having a pump cell, which has a first electrode (inner pump electrode) which is exposed to the gas mixture via the diffusion barrier, a second electrode (outer pump electrode) which is exposed to the gas mixture, and a solid electrolyte body arranged between the first and the second electrode. The Nernst electrode and the inner pump electrode are connected at least in some sections via a joint supply conductor to a circuit arrangement for controlling and evaluating the probe. A joint supply conductor resistor of the Nernst electrode and of the inner pump electrode is formed by a loaded voltage divider whose individual resistors are arranged so that the negative feedback of a Nernst voltage circuit and of a pump voltage circuit is optimized, in particular maximized.

    摘要翻译: 描述了一种用于确定气体混合物中的氧浓度的探针,特别是在具有能斯特测量池的内燃机的排气中的氧浓度,该能斯特测量池具有暴露于要测量的气体混合物的第一电极(能斯特电极) 通过扩散阻挡层,暴露于参考气体的第二电极(参考电极)和布置在第一和第二电极之间的固体电解质体,并且具有泵电池,其具有第一电极(内部泵电极) 其经由扩散阻挡层暴露于气体混合物,暴露于气体混合物的第二电极(外部泵电极)和布置在第一和第二电极之间的固体电解质体。 能斯特电极和内泵电极至少在某些部分经由接头供电导体连接到用于控制和评估探针的电路装置。 能斯特电极和内泵电极的联合供电导体电阻器由负载分压器形成,负载分压器的各个电阻器被布置成使得能斯特电压电路和泵浦电压电路的负反馈最优化,特别是最大化。

    Electrochemical sensor
    17.
    发明授权
    Electrochemical sensor 失效
    电化学传感器

    公开(公告)号:US06436277B2

    公开(公告)日:2002-08-20

    申请号:US09247737

    申请日:1999-02-09

    IPC分类号: G01N27407

    CPC分类号: G01N27/417

    摘要: An electrochemical sensor for ascertaining a gas concentration of a measuring gas includes an electrochemical element, including a first solid electrolyte body having an electrochemical pump cell and a first and a second electrode, and having a gas compartment which is connected via a gas access opening to the measuring-gas compartment, and in which one of the two electrodes is arranged. The electrochemical element further includes a second solid electrolyte body having an electrochemical sensor cell (Nernst cell) and a third and a fourth electrode. The surface of the first solid electrolyte body faces the measuring-gas compartment, and the gas access opening is covered by a porous protective layer. The electrochemical sensor includes a layer that exhibits a higher density or a lower porosity compared to the protective layer and that is allocated to the porous protective layer.

    摘要翻译: 用于确定测量气体的气体浓度的电化学传感器包括电化学元件,其包括具有电化学泵电池的第一固体电解质体和第一和第二电极,并且具有通过气体进入开口连接的气室, 测量气体室,并且其中布置两个电极中的一个。 电化学元件还包括具有电化学传感器单元(能斯特电池)和第三和第四电极的第二固体电解质体。 第一固体电解质体的表面面向测量气体隔室,并且气体进入口被多孔保护层覆盖。 电化学传感器包括与保护层相比表现出更高密度或更低孔隙率并分配给多孔保护层的层。

    Sensor arrangement for determining gas components and/or gas
concentrations of gas mixtures
    19.
    发明授权
    Sensor arrangement for determining gas components and/or gas concentrations of gas mixtures 失效
    用于确定气体组分和/或气体混合物气体浓度的传感器装置

    公开(公告)号:US5493896A

    公开(公告)日:1996-02-27

    申请号:US256941

    申请日:1994-07-27

    申请人: Johann Riegel

    发明人: Johann Riegel

    CPC分类号: G01N27/4074 G01N27/4071

    摘要: A sensor arrangement for determining at least one of gas constituents and gas concentrations of a gas mixture including oxidizable gas constituents includes a diffusion duct having a gas mixture gas orifice in communication with the gas mixture and having a reference gas orifice in communication with a reference gas; and a measuring element having a sensitive zone which is positioned in the diffusion duct, the sensitive zone being exposed to the gas mixture via the gas mixture gas orifice and being exposed to the reference gas via the reference gas orifice, wherein the reference gas and the gas mixture have respective oxygen partial pressures, and wherein the oxygen partial pressure of the reference gas is higher than the oxygen partial pressure of the gas mixture so that oxygen is present in the sensitive zone of the measuring element in amounts sufficient to oxidize the oxidizable gas constituents to be measured. In this sensor arrangement, oxygen concentration changes have a negligibly small effect on the sensitive zone and cross-sensitivity of the measuring element with respect to oxygen is largely eliminated.

    摘要翻译: PCT No.PCT / DE93 / 01152 Sec。 371日期:1994年7月27日 102(e)日期1994年7月27日PCT提交1993年12月3日PCT公布。 WO94 / 15203 PCT出版物 日期:1994年7月7日。用于确定包括可氧化气体成分的气体混合物的气体成分和气体浓度中的至少一种的传感器装置包括扩散管道,其具有与气体混合物连通的气体混合气体孔口并具有参考气体 与参考气体连通的孔口; 以及测量元件,其具有位于所述扩散管道中的敏感区域,所述敏感区域经由所述气体混合气体孔口暴露于所述气体混合物,并经由所述参考气体孔口暴露于所述参考气体,其中所述参考气体和 气体混合物具有相应的氧分压,并且其中参考气体的氧分压高于气体混合物的氧分压,使得氧在测量元件的敏感区域中以足以氧化可氧化气体的量存在 要测量的成分。 在该传感器布置中,氧浓度变化对敏感区域具有可忽略的小的影响,并且测量元件相对于氧气的交叉敏感性被大大消除。

    Sensor for determining gas components and/or gas concentrations of gas
mixtures
    20.
    发明授权
    Sensor for determining gas components and/or gas concentrations of gas mixtures 失效
    用于确定气体组分和/或气体混合物气体浓度的传感器

    公开(公告)号:US5476001A

    公开(公告)日:1995-12-19

    申请号:US244660

    申请日:1994-06-06

    CPC分类号: G01N27/419

    摘要: A sensor for determining gas components and/or gas concentrations in gas mixtures, in particular in exhaust gases of internal combustion engines. The sensor has an oxygen pump cell and a measuring element having a sensitive region. Provided between the pump cell and the gas mixture is a diffusion path in which there are formed an oxygen gradient XO.sub.2 and a gradient X.sub.CO of the gas component to be determined, which extend respectively in opposite directions. The measuring element is positioned relative to the pump cell and the diffusion path in such a way that an excess of oxygen is present on the sensitive region of the measuring element.

    摘要翻译: PCT No.PCT / DE93 / 01164 Sec。 371日期:1994年6月6日 102(e)日期1994年6月6日PCT提交1993年12月7日PCT公布。 公开号WO94 / 15206 日期1997年7月7日。一种用于确定气体混合物,特别是内燃机废气中的气体成分和/或气体浓度的传感器。 传感器具有氧气泵电池和具有敏感区域的测量元件。 提供在泵电池和气体混合物之间的是扩散路径,其中形成分别沿相反方向延伸的要确定的气体成分的氧梯度XO2和梯度XCO。 测量元件相对于泵电池和扩散路径被定位成使得过量的氧存在于测量元件的敏感区域上。