公开(公告)号：US5595647A

公开(公告)日：1997-01-21

申请号：US290703

申请日：1995-01-19

申请人： Gerhard Hoetzel ,  Harald Neumann ,  Johann Riegel

发明人： Gerhard Hoetzel ,  Harald Neumann ,  Johann Riegel

IPC分类号： G01N27/419 ,  G01N27/12 ,  G01N27/407 ,  G01N27/41

CPC分类号： G01N27/407 ,  G01N27/4074

摘要： A method of determining at least one of gas constituents and gas concentrations of a gas mixture such as exhaust gas from an internal combustion engine includes producing a change in gas concentration of the gas mixture at a semiconductor gas sensor by pumping a variable supply of oxygen to the semiconductor gas sensor by means of a solid electrolyte pumping cell; detecting at least one reaction speed selected from the group consisting of adsorption speed and desorption speed caused by the change in gas concentration as a signal from the semiconductor gas sensor which is a reply function; evaluating the signal from the semiconductor gas sensor over time to provide a time response of the reply function; and comparing the time response of the reply function with a stored, standardized time response of different gas constituents whereby at least one of the gas constituents and the gas concentrations of the gas mixture are determined.

摘要翻译： PCT No.PCT / DE94 / 00188 Sec。 371日期1995年1月19日 102（e）日期1995年1月19日PCT 1994年2月19日PCT PCT。 公开号WO94 / 22007 日期1994年9月29日一种确定气体混合物（例如来自内燃机的废气）的气体组分和气体浓度中的至少一种的方法包括通过泵送一个半导体气体传感器来产生气体混合物的气体浓度的变化 通过固体电解质泵送单元向半导体气体传感器供应氧气; 检测从由作为回复功能的半导体气体传感器的信号的气体浓度的变化引起的吸附速度和解吸速度中选择的至少一个反应速度; 评估来自半导体气体传感器的信号随时间提供回复功能的时间响应; 以及将回复函数的时间响应与不同气体成分的存储的，标准化的时间响应进行比较，由此确定气体混合物的气体成分和气体浓度中的至少一种。

公开(公告)号：US5476001A

公开(公告)日：1995-12-19

申请号：US244660

申请日：1994-06-06

申请人： Gerhard Hoetzel ,  Harald Neumann ,  Johann Riegel ,  Karl-Hermann Friese ,  Werner Gruenwald

发明人： Gerhard Hoetzel ,  Harald Neumann ,  Johann Riegel ,  Karl-Hermann Friese ,  Werner Gruenwald

IPC分类号： G01N27/12 ,  G01N27/14 ,  G01N27/416 ,  G01N27/419 ,  G01N27/62 ,  G01N27/417 ,  F02D41/14

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。

公开(公告)号：US5505837A

公开(公告)日：1996-04-09

申请号：US290704

申请日：1994-12-12

申请人： Karl-Hermann Friese ,  Hermann Dietz ,  Werner Gruenwald ,  Gerhard Hoetzel ,  Harald Neumann ,  Johann Riegel ,  Bernd Schumann

发明人： Karl-Hermann Friese ,  Hermann Dietz ,  Werner Gruenwald ,  Gerhard Hoetzel ,  Harald Neumann ,  Johann Riegel ,  Bernd Schumann

IPC分类号： G01N27/12 ,  G01N27/416 ,  G01N27/419 ,  G01N27/26

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。

公开(公告)号：US06192738B1

公开(公告)日：2001-02-27

申请号：US09244933

申请日：1999-02-04

申请人： Roland Stahl ,  Dietrich Adolph ,  Gerhard Hoetzel ,  Johann Riegel

发明人： Roland Stahl ,  Dietrich Adolph ,  Gerhard Hoetzel ,  Johann Riegel

IPC分类号： G01N700

CPC分类号： G01N33/0013

摘要： In order to provide a method and arrangement for analytical determination of the relative amounts of exhaust gas components, except for water, but including hydrogen in the rich range or oxygen in the lean range, and for determining a &lgr; value, in which the exhaust gas sample can be taken at any arbitrary location, an arrangement is provided in which at least one portion of the exhaust gas is passed through a catalytic reactor (2, 22), a condenser (3,23) connected to the catalytic reactor to receive the gas passed through it, and, after passing through the condenser, the gas passes through an IR spectrometer and by a &lgr;-sensor. The oxidizable and reducible components of the exhaust gas are reacted with each other in the catalytic reactor which is heated to temperatures greater than 450° C. The relative amounts of CO2, hydrocarbons and, if present, CO are measured with the IR spectrometer and either the relative amount of hydrogen in the rich range or of O2+½ NO in the lean range is determined with the help of the signal (Ip) from the &lgr;-sensor. A &lgr; value is calculated from the measured exhaust gas component concentrations or relative amounts.

摘要翻译： 为了提供除了水以外的排气组分的相对量的分析确定方法和装置，但是包括富含范围内的氢或贫浓范围的氧，并且用于确定l值，其中废气 可以在任何任意位置取样，其中提供排气的至少一部分通过催化反应器（2,22）的排列，连接到催化反应器的冷凝器（3,23），以接收 气体通过它，并且在通过冷凝器之后，气体通过IR光谱仪和羔羊传感器。 废气中的可氧化和可还原的组分在催化反应器中彼此反应，催化反应器被加热至高于450℃。如果使用红外光谱仪测量CO 2，烃和CO（如果存在的话）的相对量， 借助于来自羔羊传感器的信号（Ip）来确定浓范围中的氢的相对量或在稀疏范围内的O2 +½NO的相对量。 从测量的废气组分浓度或相对量计算羔羊值。

公开(公告)号：US5880353A

公开(公告)日：1999-03-09

申请号：US945297

申请日：1997-12-14

申请人： Theodor Graser ,  Gerhard Hoetzel ,  Johann Wehrmann ,  Heinz Eisenschmid

发明人： Theodor Graser ,  Gerhard Hoetzel ,  Johann Wehrmann ,  Heinz Eisenschmid

IPC分类号： G01N27/409 ,  G01N27/407 ,  G01N27/413 ,  B60H1/32 ,  H01L7/00

CPC分类号： G01N27/4078 ,  G01N27/4077

摘要： A gas sensor having a sensor element which is immobilized in gas-tight fashion in a metal housing. The gas sensor has a double-walled protective tube with an outer protective sleeve and an inner protective sleeve, each of which possesses openings for the entry and/or exit of gas. The inner protective sleeve forms a gas space into which the sensor element projects with a section at the measurement-gas end. The outer protective sleeve is a sleeve having a closed enveloping surface, the openings for the entry and/or exit of gas being arranged in the cavity at the end face of the sleeve. The gas space formed by the inner protective sleeve has, perpendicular to the extension direction of the sensor element, a rectangular cross section.

摘要翻译： PCT No.PCT / DE96 / 02210 Sec。 371日期1997年10月14日第 102（e）1997年10月14日PCT PCT 1996年11月20日PCT公布。 出版物WO97 / 33165 日期1997年9月12日一种具有传感器元件的气体传感器，其以气密方式固定在金属壳体中。 气体传感器具有双壁保护管，其具有外部保护套和内部保护套，每个保护套具有用于进入和/或排出气体的开口。 内部保护套形成气体空间，传感器元件在测量气体端部与部分一起突出。 外保护套是具有封闭的包络表面的套筒，用于气体的进入和/或排出的开口布置在套筒的端面处的空腔中。 由内保护套筒形成的气体空间垂直于传感器元件的延伸方向具有矩形截面。

公开(公告)号：US5632883A

公开(公告)日：1997-05-27

申请号：US545848

申请日：1995-11-13

申请人： Gerhard Hoetzel

发明人： Gerhard Hoetzel

IPC分类号： G01N27/409 ,  G01N27/419 ,  G01N27/407

CPC分类号： G01N27/419

摘要： The invention relates to a device for detecting the oxygen content in a gas to be measured, wherein the device comprises at least one concentration cell which includes a measuring electrode, a solid electrolyte and a reference electrode. The measuring electrode communicates with the gas to be measured and is connected via the solid electrolyte to the reference electrode, which communicates with a reference gas volume. The reference gas volume is separated from the gas to be measured in such a way that a particle exchange between the reference gas volume and the gas to be measured is at least impeded. The output voltage of the concentration cell, which voltage can be tapped off between the measuring electrode and the reference electrode, represents a measure of the difference in the oxygen concentrations in the gas to be measured and in the reference gas volume. The device further comprises a current source which can be coupled in between the reference electrode and the measuring electrode in such a way that in the coupled-in state a current flow results which is directed such that oxygen is transported in the solid electrolyte from the measuring electrode to the reference electrode. The device further comprises switching means which, in a first switching state, couples the current source to the concentration cell and which, in a second switching state, decouples the current source from the concentration cell, so that the voltage between the measuring electrode and the reference electrode in the decoupled state is not affected by the current source.

摘要翻译： PCT No.PCT / DE95 / 00258 Sec。 371日期：1995年11月13日 102（e）1995年11月13日，PCT提交1995年2月28日PCT公布。 WO95 / 24643 PCT出版物 日期1995年9月14日本发明涉及一种用于检测待测气体中的氧含量的装置，其中该装置包括至少一个浓度池，其包括测量电极，固体电解质和参比电极。 测量电极与待测气体连通，并通过固体电解质与参比电极连接，参比电极与参考气体体积连通。 将参考气体体积与待测量的气体以至少阻碍参考气体体积和被测量气体之间的颗粒交换的方式分离。 可以在测量电极和参比电极之间抽出电压的浓度单元的输出电压表示待测气体和参考气体体积中的氧气浓度差的度量。 该装置还包括电流源，其可以以这样的方式耦合在参考电极和测量电极之间，使得在耦合状态下导致电流流动导致氧气在固体电解质中从测量 电极到参比电极。 该装置还包括开关装置，其在第一开关状态下将电流源耦合到浓度电池，并且在第二开关状态下，将电流源与浓度电池分离，使得测量电极和 解耦状态的参比电极不受电流源的影响。

公开(公告)号：US06716327B1

公开(公告)日：2004-04-06

申请号：US09254402

申请日：1999-09-24

申请人： Claudio De La Prieta ,  Gerhard Hoetzel ,  Carmen Schmiedel ,  Petra Kitiratschky ,  Thomas Schulte ,  Hans-Dieter Wiemhoefer

发明人： Claudio De La Prieta ,  Gerhard Hoetzel ,  Carmen Schmiedel ,  Petra Kitiratschky ,  Thomas Schulte ,  Hans-Dieter Wiemhoefer

IPC分类号： G01N27407

CPC分类号： G01N27/4074 ,  G01N27/4075 ,  G01N27/419

摘要： A measuring arrangement for the analysis of gas components in gas mixtures, having at least one electrochemical solid electrolyte test cell with at least one cathode in a diffusion channel is exposed to a gas mixture. The use of several cathodes wired one behind the other makes possible selective analysis of individual gas components. At the first cathode, oxygen is selectively pumped off by the use of specifically oxygen-ion-conductive layers so that another component of the gas mixture can be analyzed by the following electrode.

摘要翻译： 用于分析气体混合物中的气体组分的测量装置暴露于气体混合物中，所述测量装置具有在扩散通道中具有至少一个阴极的至少一个电化学固体电解质测试电池。 使用多个连接在另一个之上的阴极可以对各个气体组分进行选择性分析。 在第一阴极，通过使用特定的氧离子导电层选择性地抽出氧气，使得气体混合物的另一组分可以由以下电极分析。

公开(公告)号：US06319376B1

公开(公告)日：2001-11-20

申请号：US09508257

申请日：2000-05-31

申请人： Theodor Graser ,  Gerhard Hoetzel ,  Johann Wehrmann ,  Heinz Eisenschmid

发明人： Theodor Graser ,  Gerhard Hoetzel ,  Johann Wehrmann ,  Heinz Eisenschmid

IPC分类号： G01N27407

CPC分类号： G01N27/407 ,  F01N13/008 ,  F01N2450/24 ,  F01N2560/025 ,  G01N27/4078

摘要： A sensor, particularly for determining the oxygen content in exhaust gasses of internal combustion engines, includes sensor element which is fixed in a metallic housing and a sealing flange which is integrally formed on the housing and rests on a sealing seat which is formed on an exhaust system. The sealing flange has two ring elements which are integrally formed on the housing and each have an inclined sealing surface, a hollow space being formed between the two ring elements inside the housing.

摘要翻译： 特别是用于确定内燃机排气中的氧气含量的传感器包括固定在金属壳体中的传感器元件和一体地形成在壳体上的密封凸缘，该密封凸缘搁置在形成在排气口上的密封座上 系统。 密封凸缘具有两个环形元件，其一体地形成在壳体上并且每个具有倾斜的密封表面，在壳体内部的两个环形元件之间形成中空空间。

公开(公告)号：US5389223A

公开(公告)日：1995-02-14

申请号：US62497

申请日：1993-05-17

申请人： Gerhard Hoetzel

发明人： Gerhard Hoetzel

IPC分类号： G01N27/417 ,  G01N27/419

CPC分类号： G01N27/417

摘要： An electrochemical measuring sensor for the determination of the air/fuel ratio in exhaust gases of internal combustion engines both in the low-fuel and also in the fuel-rich range with a sensor element with an electrochemical oxygen concentration cell and an oxygen pumping cell with solid electrolyte base is proposed, in which the sensor element is arranged in a housing, capable of insertion in the exhaust gas pipe, in a manner such that the electrodes of the electrochemical oxygen concentration cell and of the oxygen pumping cell of the sensor element in the measuring sensor are situated outside the exhaust gas pipe, the communication with the atmosphere taking place via openings in the housing and the communication with the exhaust gas taking place via a diffusion slit. The sensor element is characterized by a particularly simple construction, free oxygen being available to the oxygen pumping cell both in the lean and also in the rich lambda range. The electrodes of the oxygen pumping cell can be of large dimension, for which reason only comparatively small current densities are necessary. A severe cooling of the sensor element in the electrode range due to cold exhaust gas (test gas) is prevented.

摘要翻译： 一种电化学测量传感器，用于利用具有电化学氧浓度池的传感器元件和具有氧气浓缩池的氧气泵浦单元来确定低燃料和富燃料范围内燃机的废气中的空气/燃料比 提出了固体电解质基底，其中传感器元件布置在能够插入排气管中的壳体中，使得电化学氧浓度池的电极和传感器元件的氧气泵浦单元的电极 测量传感器位于废气管外部，通过壳体中的开口与大气连通，并且通过扩散狭缝进行与废气的连通。 传感器元件的特征在于特别简单的结构，氧气泵浦电池在贫和还在富λ范围内均可获得游离氧。 氧抽取电池的电极可以是大尺寸的，因此仅需要相对较小的电流密度。 防止由于冷排气（试验气体）引起的电极范围内的传感器元件的严重冷却。

公开(公告)号：US06200458B1

公开(公告)日：2001-03-13

申请号：US09223970

申请日：1998-12-31

申请人： Peter Brida ,  Theodor Graser ,  Gerhard Hoetzel

发明人： Peter Brida ,  Theodor Graser ,  Gerhard Hoetzel

IPC分类号： G01N27409

CPC分类号： G01N27/417

摘要： The invention is directed to a method for detecting the oxygen content in a gas to be measured. At least one concentration cell operating in accordance with the Nernst principle is provided. The concentration cell includes a measuring electrode communicating with the gas and a solid electrolyte and a reference electrode connected to the measuring electrode through the solid electrolyte. A pump-current pulse is applied between the reference electrode and the measuring electrode and, directly after the end of each pump-current pulse, the current flow between the reference electrode and the measuring electrode is reversed in a pulse-like manner.

摘要翻译： 本发明涉及一种用于检测待测气体中的氧含量的方法。 提供了至少一个按照恩斯特原理操作的浓缩池。 浓缩池包括与气体连通的测量电极和固体电解质以及通过固体电解质连接到测量电极的参考电极。 在参考电极和测量电极之间并且直接在每个泵电流脉冲结束之后施加泵电流脉冲，参考电极和测量电极之间的电流以脉冲状方式反转。