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41. 发明申请

US20060081472A1 Gas sensor 审中-公开
标题翻译：气体传感器
公开(公告)号：US20060081472A1
公开(公告)日：2006-04-20
申请号：US11250266
申请日：2005-10-13
申请人： Hans-Martin Wiedenmann , Lothar Diehl , Thomas Moser , Stefan Rodewald
发明人： Hans-Martin Wiedenmann , Lothar Diehl , Thomas Moser , Stefan Rodewald
IPC分类号： G01N27/26
CPC分类号： G01N27/4072
摘要： A gas sensor is used for detecting a physical property of a measuring gas, preferably for determining the oxygen concentration of an exhaust gas of an internal combustion engine. The gas sensor includes a layered sensor element which has a measuring gas space, in which an electrode on a solid electrolyte is situated. The sensor element includes a first diffusion barrier and a second diffusion barrier and a cavity, situated between the first and the second diffusion barriers, the measuring gas space being connected to the measuring gas outside the sensor element via the first diffusion barrier, the cavity, and the second diffusion barrier.
摘要翻译：气体传感器用于检测测量气体的物理性质，优选用于确定内燃机的废气的氧气浓度。气体传感器包括层状传感器元件，其具有位于固体电解质上的电极的测量气体空间。传感器元件包括位于第一和第二扩散阻挡层之间的第一扩散阻挡层和第二扩散阻挡层和空腔，测量气体空间经由第一扩散阻挡层，腔体与传感器元件外部的测量气体连接，和第二扩散阻挡层。

42. 发明申请

US20050252771A1 Method for operating a broadband lambda probe 审中-公开
标题翻译：操作宽带探测器的方法
公开(公告)号：US20050252771A1
公开(公告)日：2005-11-17
申请号：US10510397
申请日：2003-03-06
申请人： Hans-Martin Wiedenmann , Lothar Diehl , Thomas Moser
发明人： Hans-Martin Wiedenmann , Lothar Diehl , Thomas Moser
IPC分类号： G01N27/406 , G01N27/407 , G01N27/419 , G01N27/26
CPC分类号： G01N27/419 , G01N27/4065 , G01N27/407
摘要： A method for operating a broadband lambda sensor for determining the concentration of oxygen in the exhaust gas of an internal combustion engine operated with a fuel-air mixture is provided. In this method, a pump voltage (UP) is applied to the pump cell of the sensor, this voltage-being set dependent on a Nernst voltage (UN) tapped at the Nernst cell, and, dependent on the oxygen content of the exhaust gas, driving a cathodic or anodic pump current IP via the pump cell. In order to maintain the measurement sensitivity of the sensor even during secondary fuel injection in lean operation and/or in “fast light off” operation, the polarity of the pump voltage (UP) is repeatedly reversed during the duration of a secondary fuel injection and/or of the “fast light off” operation, so that an anodic pump current briefly arises that pumps oxygen ions into the measurement chamber, occupied by the measurement electrode of the Nernst cell and the inner electrode of the pump cell, in which chamber the oxygen ions oxidize the hydrocarbons.
摘要翻译：提供一种用于操作用于确定用燃料 - 空气混合物操作的内燃机的排气中的氧浓度的宽带λ传感器的方法。在该方法中，将泵电压（U P P）施加到传感器的泵单元，该电压设定取决于能斯特电压（U N N N）在能斯特电池，并且取决于废气的氧含量，通过泵电池驱动阴极或阳极泵电流I P P。为了即使在稀燃操作和/或“快关灯”操作中的二次燃料喷射期间也保持传感器的测量灵敏度，泵电压（U P P）的极性在二次燃料喷射的持续时间和/或“快速熄灭”操作的持续时间，使得短暂地出现阳极泵电流，其将氧离子泵送到测量室中，该能量由能斯特电池的测量电极和内部电极泵室，其中氧离子氧化烃。

43. 发明授权

US06613206B1 Gas sensor 失效
标题翻译：气体传感器
公开(公告)号：US06613206B1
公开(公告)日：2003-09-02
申请号：US09308078
申请日：1999-07-14
申请人： Helmut Weyl , Hans-Martin Wiedenmann , Theodor Graser , Karl-Heinz Effenberger , Clemens Simon , Anton Hans
发明人： Helmut Weyl , Hans-Martin Wiedenmann , Theodor Graser , Karl-Heinz Effenberger , Clemens Simon , Anton Hans
IPC分类号： G01N27407
CPC分类号： G01N27/407
摘要： A gas sensor, in particular a lambda probe, for ascertaining the pollutant and/or oxygen content in emission gases of internal combustion engines, having a housing accommodating at least one sensor element, the sensor element having a section on the terminal side and a section on the measuring-gas side, and having a connecting element that connects the sensor element, which has a plurality of electrically conductive contact areas, at its terminal-side section to a plurality of electrically conductive supply leads. The gas sensor has the feature of a connecting element which is formed from a spring element produced in one piece from ceramic material.
摘要翻译：一种气体传感器，特别是λ探测器，用于确定内燃机的排放气体中的污染物和/或氧含量，其具有容纳至少一个传感器元件的壳体，该传感器元件在终端侧具有一部分，在测量气体侧，并且具有将其端子侧部分具有多个导电接触区域的传感器元件连接到多个导电供应引线的连接元件。气体传感器具有由陶瓷材料一体制成的弹簧元件形成的连接元件的特征。

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