公开(公告)号：US4419190A

公开(公告)日：1983-12-06

申请号：US357803

申请日：1982-03-12

申请人： Hermann Dietz ,  Ferdinand Grob ,  Klaus Muller ,  Lothar Raff ,  Franz Rieger ,  Hans-Martin Wiedenmann

发明人： Hermann Dietz ,  Ferdinand Grob ,  Klaus Muller ,  Lothar Raff ,  Franz Rieger ,  Hans-Martin Wiedenmann

IPC分类号： G01N27/41 ,  G01K7/00 ,  G01K7/28 ,  G01N27/406 ,  G01N27/409 ,  G05D23/24 ,  G01N27/58

CPC分类号： G01N27/4065 ,  G01K7/28 ,  G05D23/1906 ,  G05D23/24

摘要： To provide for temperature measurement of a solid electrolyte polarographic gas composition sensor, an ac signal is superimposed from an ac voltage source (2) on the applied voltage from a voltage source (1) if the sensor is a polarographic sensor, the ac signal being separated from the output by a filter combination (6, 7), the dc output being evaluated as usual, and the ac output being rectified in a rectifier (9) to obtain a measure of the temperature since the ac resistance (R.sub.alt) is highly temperature dependent (see FIG. 3). The ac preferably is about 10% of the applied dc voltage, so that the voltage swing of the ac potential falls well within the linear range of output current with respect to voltage (see FIG. 2). The output from the ac channel (7, 9) to evaluate the temperature signal can be connected to a control loop circuit (10, 11), including a heater (11) to heat the sensor to maintain a uniform temperature thereof.

摘要翻译： 为了提供固体电解质极谱气体组成传感器的温度测量，如果传感器是极谱传感器，则交流电信号从交流电压源（2）叠加在来自电压源（1）的施加电压上，交流信号为 通过滤波器组合（6,7）从输出分离，直流输出按照常规进行评估，并且交流输出在整流器（9）中整流以获得由于交流电阻（Ralt）高的温度的测量 温度依赖（参见图3）。 交流电压优选为所施加的直流电压的约10％，使得交流电位的电压摆幅相对于电压在输出电流的线性范围内很好地下降（见图2）。 来自用于评估温度信号的交流通道（7,9）的输出可以连接到包括加热器（11）的控制回路电路（10,11），以加热传感器以保持其均匀的温度。

公开(公告)号：US4594984A

公开(公告)日：1986-06-17

申请号：US755213

申请日：1985-07-15

申请人： Lothar Raff ,  Hans-Martin Wiedenmann

发明人： Lothar Raff ,  Hans-Martin Wiedenmann

IPC分类号： F02D41/34 ,  F02D33/00 ,  F02D41/14 ,  F02P5/14 ,  F02P5/155 ,  F02M7/12 ,  F02B3/08 ,  F02B33/00 ,  F02D5/02

CPC分类号： F02D41/1475 ,  F02D41/1479

摘要： A regulating device is proposed for the mixture composition of an internal combustion engine having a signal sensor and having regulating ranges which can be switched over between lambda equals one and the lean range. The lambda-equal-to-one regulation is effected by means of a two-point regulator and the lean regulation is effected either via an altered set-point value of the two-point regulator or with the aid of a steady regulator. The transitions between the two types of regulation take a course dependent on a selectable function, in order to avoid abrupt changes in rpm. A switchover is also made to controlled operation for a brief period at the beginning of each type of regulation.

摘要翻译： 提出了一种调节装置，用于具有信号传感器的内燃机的混合组成，其具有可在等于1和稀的范围之间切换的调节范围。 通过两点调节器实现λ等于一的调节，并且通过两点调节器的改变的设定值或借助于稳定调节器来实现贫调节。 两种类型的调节之间的转换取决于可选择的功能，以避免rpm的突然变化。 在每种类型的调节开始时，也进行了短时间的控制操作。

公开(公告)号：US4463594A

公开(公告)日：1984-08-07

申请号：US377604

申请日：1982-05-13

申请人： Lothar Raff ,  Hans-Martin Wiedenmann

发明人： Lothar Raff ,  Hans-Martin Wiedenmann

IPC分类号： F02D41/14 ,  F23N5/00 ,  G01N27/26 ,  G01N27/409 ,  G01N31/00 ,  F02B3/08

CPC分类号： F02D41/1481

摘要： To compensate for temperature-dependent shift on the operating characteristics of an oxygen ion conductive sensor which tends to shift the operating characteristics towards the "lean" range (.lambda.>1) at low temperature, and towards the "rich" range (.lambda.

摘要翻译： 为了补偿氧离子传导传感器的操作特性的温度依赖性变化，其倾向于在低温下将工作特性向“贫”范围（λ> 1）移动，并且朝向“富”范围（λ<1） ），从传感器导出的脉冲被延迟或移位，使得代表从偏移到丰富方向的脉冲的后沿延迟地传输; 依赖于温度，从丰富到精益的转变也延迟传递。 通过具有可变时间延迟的定时电路（9,14）获得延迟，时间延迟由通过感测传感器的a-c电阻导出的温度信号（9a）控制，由高通滤波器分流并整流。 通过将第一定时级（9）延迟脉冲的后沿或缩短脉冲，从而延迟由第二定时电路（14）产生脉冲前沿的脉冲，各个脉冲被逻辑地组合 取决于比较器（18）相对于例如300℃-400℃设定点的温度水平确定的温度。

公开(公告)号：US4756885A

公开(公告)日：1988-07-12

申请号：US852807

申请日：1986-02-21

申请人： Lothar Raff ,  Helmut Weyl ,  Hans-Martin Wiedenmann

发明人： Lothar Raff ,  Helmut Weyl ,  Hans-Martin Wiedenmann

IPC分类号： G01N27/403 ,  G01N27/407 ,  G01N27/413 ,  G01N27/56

CPC分类号： G01N27/4077

摘要： A combination of a measuring sensor and protector having a measuring sensor with a housing and having an elongated cup-like protective pipe engaged with the housing. The pipe has a bottom having a convex shape with an inlet opening. The pipe also has at least one outlet opening spaced away from the bottom. A deflector extends inward from the pipe at an acute angle relative to a longitudinal axis of the pipe and away from the bottom so that when gas flows longitudinally within the pipe from the inlet opening, the gas is deflected by the deflector to flow around the deflector to the at least one outlet opening. The bottom also has a boss-like bulging portion projecting outward to form the inlet opening so as to reduce contamination of the measuring element by preventing solid particles in the gas from entering inside the pipe.

摘要翻译： PCT No.PCT / DE85 / 00229 Sec。 371日期1986年2月21日 102（e）日期1986年2月21日PCT提交1985年7月4日PCT公布。 出版物WO86 / 00709 日期1986年1月30日。测量传感器和保护器的组合，其具有带壳体的测量传感器，并具有与壳体接合的细长的杯状保护管。 管具有具有入口开口的凸形的底部。 管道还具有至少一个与底部间隔开的出口开口。 偏转器相对于管的纵向轴线以锐角从管子向内延伸并且远离底部，使得当气体从入口开口在管道内纵向流动时，气体被偏转器偏转以流过偏转器 至少一个出口开口。 底部还具有向外突出以形成入口开口的凸起状凸出部，以便通过防止气体中的固体颗粒进入管内而减少测量元件的污染。

公开(公告)号：US20090038941A1

公开(公告)日：2009-02-12

申请号：US11632142

申请日：2005-06-23

申请人： Roland Stahl ,  Hans-Martin Wiedenmann ,  Detlef Heimann ,  Lothar Diehl ,  Thomas Moser ,  Bjoern Janetzky ,  Jan Bahlo

发明人： Roland Stahl ,  Hans-Martin Wiedenmann ,  Detlef Heimann ,  Lothar Diehl ,  Thomas Moser ,  Bjoern Janetzky ,  Jan Bahlo

IPC分类号： G01N27/419 ,  G01N27/407 ,  G01N27/406

CPC分类号： G01N27/419 ,  G01N27/4065 ,  G01N27/4071

摘要： In an apparatus that ascertains a concentration of a component in a gas mixture, the apparatus includes: a gas measurement chamber, in which the concentration of the component is adjustable against an influence of an interface, acting across a diffusion barrier, with the concentration in the gas mixture, whereby the influence of the interface is compensated for by a controllable current of ions of the component by way of a solid electrolyte, which is charged with a controllable pumping voltage, serves as a pumping mechanism, and is located between the gas measurement chamber and the gas mixture, so that a parameter that characterizes a current constitutes a measurement for the concentration in the gas mixture, whereby the solid electrolyte is at least periodically charged with a specified constant pumping voltage as a function of at least one state parameter of the gas mixture.

摘要翻译： 在确定气体混合物中组分浓度的装置中，该装置包括：气体测量室，其中组分的浓度可以相对于界面的影响而调节，作用在扩散阻挡层上，浓度在 气体混合物，由此通过可控的泵送电压的固体电解质通过可控电流的组分的离子来补偿界面的影响，其用作泵送机构，并且位于气体之间 测量室和气体混合物，使得表征电流的参数构成气体混合物中的浓度的测量值，由此固体电解质至少周期性地以指定的恒定泵浦电压作为至少一个状态参数的函数 的气体混合物。

公开(公告)号：US06849238B2

公开(公告)日：2005-02-01

申请号：US10045743

申请日：2001-10-19

申请人： Helmut Weyl ,  Hans-Martin Wiedenmann

发明人： Helmut Weyl ,  Hans-Martin Wiedenmann

IPC分类号： G01N27/409 ,  G01N27/407 ,  G01N27/41 ,  G01N31/12 ,  G01N3/62 ,  G01N9/00 ,  G01N27/00 ,  G01N27/16

CPC分类号： G01N27/4077 ,  Y10T436/20 ,  Y10T436/208339

摘要： The measuring sensor, particularly a lambda probe, has a ceramic sensor member retained at a high temperature during measuring operation. It is shielded from water droplets, carried along in the gas to be analyzed, by a heated protective housing, permeable for the gas to be analyzed, by which water droplets carried along in the direction of the sensor member are evaporated before reaching the sensor member. In this way, the water droplets are unable to cause any shock-like temperature drops at spots on the surface of the sensor member or material flaking.

摘要翻译： 测量传感器，特别是λ探针，在测量操作期间具有保持在高温下的陶瓷传感器构件。 通过被加热的保护壳体与被分析的气体携带的水滴屏蔽，用于被分析的气体是可透过的，通过该气体，在传感器构件的方向上携带的水滴在到达传感器构件之前被蒸发 。 以这种方式，水滴不能在传感器构件的表面上的点处或材料剥落处引起任何类似震动的温度下降。

公开(公告)号：US5662786A

公开(公告)日：1997-09-02

申请号：US807163

申请日：1991-12-13

申请人： Karl-Hermann Friese ,  Helmut Weyl ,  Werner Wieland ,  Hans-Martin Wiedenmann

发明人： Karl-Hermann Friese ,  Helmut Weyl ,  Werner Wieland ,  Hans-Martin Wiedenmann

IPC分类号： G01N27/407 ,  G01N27/409

CPC分类号： G01N27/4075

摘要： The electrochemical sensor for determination of an oxygen content of exhaust gases, includes a probe element including a tube made from a raw material mixture consisting essentially of an ionically conductive solid electrolyte; an outer electrode located on the outer surface of the tube; a substantially pore-free conductor strip layer located on the outer surface, connected to the outer electrode, and extending toward the open end, the conductor strip layer having a portion in close proximity to the tube open end; and a substantially pore-free cover layer hermetically covering at least the portion of the pore-free conductor strip layer in close proximity to the open end of the tube, the cover layer being made from a cover layer material including the ionically conductive solid electrolyte. The cover layer material advantageously a sintering activity which is at least equal to that of the raw material mixture from which the tube is made. The conductor strip layer consists essentially of a ceramic supporting framework and an electron-conducting material. The ceramic ceramic binder has at least the same sintering activity as the cover layer material.

摘要翻译： 用于确定废气氧含量的电化学传感器包括探针元件，其包括由基本上由离子导电固体电解质组成的原料混合物制成的管; 位于所述管的外表面上的外电极; 位于所述外表面上的基本上无孔的导体条带层，其连接到所述外电极并且朝向所述开口端延伸，所述导体带层具有紧邻所述管开口端的部分; 以及基本无孔的覆盖层，其至少密封地覆盖无孔导体带层的靠近管的开口端的部分，覆盖层由包括离子导电固体电解质的覆盖层材料制成。 覆盖层材料有利地是至少等于制造管的原料混合物的烧结活性。 导体带层基本上由陶瓷支撑框架和电子传导材料组成。 陶瓷陶瓷粘合剂具有与覆盖层材料至少相同的烧结活性。

公开(公告)号：US5473304A

公开(公告)日：1995-12-05

申请号：US971904

申请日：1992-12-28

申请人： Karl-Hermann Friese ,  Hans-Martin Wiedenmann ,  Gerhard Hoetzel

发明人： Karl-Hermann Friese ,  Hans-Martin Wiedenmann ,  Gerhard Hoetzel

IPC分类号： F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F02D35/00 ,  F02D41/14 ,  G01K7/22 ,  G01K17/00 ,  G01N25/30 ,  H01C7/10

CPC分类号： F01N11/002 ,  F02D41/1446 ,  F01N2550/02 ,  Y02T10/47

摘要： A method is disclosed for the protection of catalytic converters for exhaust gas purification by measuring the temperature with a heat tone sensor suitable particularly for the implementation of the method, wherein a heat tone sensor composed of at least two NTC or PTC resistors and provided with a coating of a catalytically active material on the sensor in the region of at least one of these resistors is arranged ahead of the catalytic converter in the exhaust gas stream or a part thereof, with the catalytically active material initiating the same exothermal reactions as they take place in the catalytic converter employed for the exhaust gas purification. If the resistor is overheated due to an overly intensive exothermal reaction, resulting in a change in resistance, the heat tone sensor detects the drop in the throughput rate of the catalytic converter.

摘要翻译： PCT No.PCT / DE91 / 00447 Sec。 371日期1992年12月28日 102（e）日期1992年12月28日PCT提交1993年5月8日PCT公布。 出版物WO92 / 1992年1月9日公开了一种用于通过用于实施该方法的热色调传感器测量温度来保护用于废气净化的催化转化器的方法，其中由至少两个NTC组成的热音传感器 或PTC电阻器并且在这些电阻器中的至少一个的区域中在传感器上提供催化活性材料的涂层布置在排气流或其一部分中的催化转化器之前，催化活性材料起始于 在用于废气净化的催化转化器中发生相同的放热反应。 如果由于过度强烈的放热反应导致电阻器过热，导致电阻变化，则热调传感器检测催化转化器的生产率下降。

公开(公告)号：US5380424A

公开(公告)日：1995-01-10

申请号：US81325

申请日：1993-06-24

申请人： Karl-Hermann Friese ,  Hans-Martin Wiedenmann

发明人： Karl-Hermann Friese ,  Hans-Martin Wiedenmann

IPC分类号： G01N27/409 ,  C04B35/48 ,  C04B41/85 ,  C04B41/88 ,  G01N27/26 ,  G01N27/406 ,  G01N27/407 ,  G01N27/417

CPC分类号： G01N27/4071 ,  G01N27/4075 ,  G01N27/4078

摘要： A sensor for determining the oxygen content in exhaust gases, particularly for lambda probes, is presented with catalytically active substances in the porous protective layer, which cover the electrode or electrodes exposed to the measuring gas, with discretely distributed platinum and homogenously distributed rhodium being used as catalytically active substances. The sensor in accordance with this invention guarantees excellent catalytic conversion of the exhaust gases and thus a control position of the sensor close to lambda=1.

摘要翻译： PCT No.PCT / DE91 / 00950 Sec。 371日期：1993年6月24日 102（e）日期1993年6月24日PCT 1991年12月5日PCT PCT。 第WO92 / 12420BC号公报 日期：1992年7月23日。用于确定排气中的氧含量，特别是用于λ探针的传感器在多孔保护层中具有催化活性物质，其覆盖暴露于测量气体的电极或电极，离散分布 铂和均匀分布的铑用作催化活性物质。 根据本发明的传感器保证了废气的极好的催化转化，从而保证传感器的控制位置接近λ= 1。

公开(公告)号：US4320080A

公开(公告)日：1982-03-16

申请号：US193467

申请日：1980-10-03

申请人： Friedrich Esper ,  Hans-Martin Wiedenmann

发明人： Friedrich Esper ,  Hans-Martin Wiedenmann

IPC分类号： H01F1/26 ,  H01F1/28 ,  H01F1/33 ,  H01F1/37 ,  B22F3/02

CPC分类号： H01F1/26 ,  H01F1/28 ,  H01F1/33 ,  H01F1/37 ,  Y10S264/58

摘要： To permit use of less expensive iron powder material and manufacture of more complex shapes, a mixture of iron powder, of an approximate grain size of between 30 to 450 .mu.m, and containing preferably 5 to 50% of carbonyl iron powder or from 5 to 50%, by weight, of soft ferrite powder of a grain size of from 10 to 200 .mu.m, and a thermosetting resin, in which the thermosetting resin is about 50% by volume of the overall mixture, is filled into a die. Pressure is built up in the die, which is heated, permitting excess binder to escape during the build-up phase thereof, the pressure then being held so that the resin can set in the heated die. The pressures needed are substantially less than heretofore required, in the order of from between 500 to 5000 bar.

摘要翻译： 为了允许使用较便宜的铁粉材料和制造更复杂的形状，约30至450μm的大致粒度的铁粉和优选5至50％的羰基铁粉末或5至 将50重量％的粒径为10〜200μm的软质铁氧体粉末和其中热固性树脂为总体混合物的约50体积％的热固性树脂填充到模具中。 在模具中形成压力，其被加热，允许多余的粘合剂在其堆积阶段逸出，然后保持压力，使得树脂可以设置在加热模具中。 所需的压力远低于迄今所需的压力，为500至5000巴之间。