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公开(公告)号：US3962866A
公开(公告)日：1976-06-15
申请号：US436863
申请日：1974-01-28
IPC分类号： F01N3/20 , F01N9/00 , F01N11/00 , F02B75/10 , F02D9/00 , F02D21/08 , F02D35/02 , F02D41/14 , G01M15/00 , G01N27/417 , F01N3/15 , F02M25/06
CPC分类号： G01N27/417 , F01N11/002 , F01N11/007 , F02D41/1479 , F02D9/00 , G01N27/4175 , F01N2550/02 , F02D2700/09 , Y02T10/47
摘要： To supervise operational effectiveness of catalytic reactors included in exhaust emission detoxification systems, an oxygen sensor is located downstream of the reactor to determine oxygen content in the exhaust gases from the internal combustion engine, the oxygen sensor comprising an ion conductive solid electrolyte forming an ion concentration chain and having catalytically inactive contacts, connected to a detection circuit which provides an output signal in dependence on a signal from the sensor, the output signal operating an alarm, or a transducer which interferes with proper engine operation to force the operator to have the reactor repaired. Preferably, two ion conductive chains are used, in a single sensor, or in two sensors, one being exposed to exhaust gases upstream of the catalytic reactor and the other downstream of the catalytic reactor, the output signals being provided to a differentially connected operational amplifier, to balance out extraneous influences.
摘要翻译： 为了监督废气排放解毒系统中包括的催化反应器的操作有效性，氧传感器位于反应器的下游，以确定来自内燃机的废气中的氧含量，氧传感器包括形成离子浓度的离子导电固体电解质 连接并具有催化惰性触点，其连接到检测电路，该检测电路根据来自传感器的信号，操作报警器的输出信号或干扰适当发动机操作的换能器提供输出信号，以迫使操作者具有反应器 修理 优选地，在单个传感器中或在两个传感器中使用两个离子导电链，一个暴露于催化反应器上游的废气和催化反应器的另一个下游，输出信号被提供给差分连接的运算放大器 ，以平衡外来影响。
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公开(公告)号：US4007589A
公开(公告)日：1977-02-15
申请号：US659716
申请日：1976-02-20
IPC分类号： F01N11/00 , F02D9/00 , F02D41/14 , G01N27/417 , F01N3/15
CPC分类号： G01N27/4175 , F01N11/002 , F01N11/007 , F02D41/1479 , F02D9/00 , F01N2550/02 , F02D2700/09 , Y02T10/47
摘要： To supervise operational effectiveness of catalytic reactors included in exhaust emission detoxification systems, an oxygen sensor is located downstream of the reactor to determine oxygen content in the exhaust gases from the internal combustion engine, the oxygen sensor comprising an ion conductive solid electrolyte forming an ion concentration chain and having catalytically inactive contacts, connected to a detection circuit which provides an output signal in dependence on a signal from the sensor, the output signal operating an alarm, or a transducer which interferes with proper engine operation to force the operator to have the reactor repaired. Preferably, two ion conductive chains are used, in a single sensor, or in two sensors, one being exposed to exhaust gases upstream of the catalytic reactor and the other downstream of the catalytic reactor, the output signals being provided to a differentially connected operational amplifier, to balance out extraneous influences.
摘要翻译： 为了监督废气排放解毒系统中包括的催化反应器的操作有效性，氧传感器位于反应器的下游，以确定来自内燃机的废气中的氧含量，氧传感器包括形成离子浓度的离子导电固体电解质 连接并具有催化惰性触点，其连接到检测电路，该检测电路根据来自传感器的信号，操作报警器的输出信号或干扰适当发动机操作的换能器提供输出信号，以迫使操作者具有反应器 修理 优选地，在单个传感器中或在两个传感器中使用两个离子导电链，一个暴露于催化反应器上游的废气和催化反应器的另一个下游，输出信号被提供给差分连接的运算放大器 ，以平衡外来影响。
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公开(公告)号：US3969932A
公开(公告)日：1976-07-20
申请号：US604320
申请日：1975-08-13
申请人： Franz Rieger , Ernst Linder , Peter Jurgen Schmidt
发明人： Franz Rieger , Ernst Linder , Peter Jurgen Schmidt
CPC分类号： F01N11/007 , F02B77/086 , F02D41/1441 , F02D41/1474 , F01N2430/06 , F01N2550/02 , Y02T10/47
摘要： The inlet and outlet ends of a catalytic reactor are instrumented with oxygen sensors. A change of the fuel-air concentration of the combustible mixture is indicated by a jump in the output voltage of the sensors; the voltage of the inlet sensor changes before that of the outlet sensor and the greater the time difference between these changes, the higher is the catalytic activity of the reactor. When a repeatable and constant engine condition is reached, the fuel-air mixture is abruptly changed and an electronic circuit enables a logical circuit which controls a signal lamp. If, during a predetermined time interval, the outlet sensor also changes its output voltage, indicating a time difference which is too short, the warning signal is energized and the operator is alerted to the insufficient level of reactor activity.
摘要翻译： 催化反应器的入口端和出口端装有氧传感器。 可燃混合物的燃料 - 空气浓度的变化由传感器的输出电压的跳跃表示; 入口传感器的电压在出口传感器的电压变化之前，这些变化之间的时间差越大，反应器的催化活性越高。 当达到可重复且恒定的发动机状态时，燃料 - 空气混合物突然改变，并且电子电路使能控制信号灯的逻辑电路。 如果在预定的时间间隔期间，出口传感器也改变其输出电压，指示太短的时间差，则警告信号被激励，并且操作员被警告到反应堆活动的水平不足。
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4.发明授权
公开(公告)号：US4040394A
公开(公告)日：1977-08-09
申请号：US597561
申请日：1975-07-21
CPC分类号： F02D41/30 , F02D41/2454 , F02D9/00 , F02D2700/09
摘要： Certain intervals are determined in which output signals from an exhaust gas sensing device are sensed, and then applied to a control circuit, to control the fuel supply system (carburetor, or fuel injection system) in such a direction that a predetermined ratio of fuel and air is being supplied to the engine to provide exhaust gases of predetermined composition. The intervals are determined by a logic circuit which has applied thereto engine operating parameters such as operating time of the engine after having been started, engine speed, engine power condition (idling, or supplying power), engine temperature, or the like.
摘要翻译： 确定某些间隔，其中感测来自排气感测装置的输出信号，然后施加到控制电路，以按照预定燃料比和燃料供应系统（化油器或燃料喷射系统）的方向控制燃料供应系统 向发动机供给空气以提供预定组成的废气。 这些间隔由对已经开始发动机的运转时间，发动机转速，发动机功率状况（空转，供给动力），发动机温度等的发动机运转参数进行了应用的逻辑电路决定。
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公开(公告)号：US4024850A
公开(公告)日：1977-05-24
申请号：US465351
申请日：1974-04-29
申请人： Bernd Peter , Peter Jurgen Schmidt
发明人： Bernd Peter , Peter Jurgen Schmidt
CPC分类号： F01N9/00 , F01N13/009 , F02D41/1446 , F01N2430/06 , Y02T10/47
摘要： A sensing means is provided to monitor combustion of fuel and air supplied to an internal combustion engine, for example by sensing ignition pulses, combustion pressure, or cylinder temperature. Signals, as sensed, are evaluated and if one of these signals is beyond a certain threshold (e.g. extreme with respect to a set value, or with respect to an average of all signals) as sensed by threshold switches, supply of the combustible fuel-air mixture to the specific cylinder is interrupted.
摘要翻译： 提供感测装置来监测供应给内燃机的燃料和空气的燃烧，例如通过感测点火脉冲，燃烧压力或气缸温度。 如所感测到的信号被评估，并且如果这些信号中的一个超过阈值开关所感测到的某个阈值（例如相对于设定值的极值或相对于所有信号的平均值），则可燃燃料 - 空气混合物到特定气缸中断。
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公开(公告)号：US4033633A
公开(公告)日：1977-07-05
申请号：US668296
申请日：1976-03-18
CPC分类号： H03L7/18
摘要： An oscillator is connected to a backward counter to set the backward counter to a count number representative of its frequency of oscillation, the backward counter being stepped down by clock pulses recurring at a frequency high with respect to the cycling rate of the oscillator until it reaches a reference value, for example zero. The difference between the reference value and the count state of the counter when a predetermined counting period has elapsed, as determined by the duration of one cycle of the input signal, forms an error signal which is transmitted over a bi-directional counter to an integrator which, in turn, controls the oscillator. The system is particularly applicable for use in connection with vehicle wheel brake anti-lock arrangements, and permits determination of wheel speed by oscillation of the oscillator as well as acceleration and deceleration by sensing the error signal.
摘要翻译： 振荡器连接到反向计数器以将反向计数器设置为表示其振荡频率的计数值，反向计数器由相对于振荡器的循环速率以高频重复的时钟脉冲降压，直到达到 参考值，例如零。 当通过输入信号的一个周期的持续时间确定的预定计数周期经过了计数器的参考值和计数状态之间的差异形成通过双向计数器发送到积分器的误差信号 这反过来控制振荡器。 该系统特别适用于与车轮制动器防抱死装置相关的使用，并且允许通过振荡器的振荡以及通过感测误差信号来加速和减速来确定车轮速度。
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7.发明授权Apparatus for the control of air admission to the exhaust system of an internal combustion engine including a safety circuit means 失效用于控制进入包括安全电路装置的内燃机的排气系统的空气的装置
公开(公告)号：US4024707A
公开(公告)日：1977-05-24
申请号：US575995
申请日：1975-05-09
CPC分类号： F01N3/222 , F01N3/22 , F01N3/227 , F02D35/0038 , F02D41/1454
摘要： An internal combustion engine which is provided with an exhaust gas treatment system, such as thermal or catalytic reactors, includes a primary regulating system for admitting fresh air to the exhaust system for the chemical processes taking place in the reactors. This fresh air regulation depends on the engine rpm and on the induction tube pressure. There is also provided a secondary air control system, including a three-way valve and an electronic controller and an oxygen probe, located in the exhaust manifold. The probe supplies the controller with a signal related to the oxygen concentration in the exhaust gas and the controller uses this signal to actuate the three-way valve which admits either induction tube pressure or, alternatively, exhaust system pressure, to a control chamber in the primary regulating system, thereby influencing the quantity of fresh air supplied to the exhaust manifold of the engine.
摘要翻译： 设置有诸如热或催化反应器的废气处理系统的内燃机包括用于将新鲜空气引入排气系统以用于在反应器中进行的化学过程的初级调节系统。 这种新鲜空气调节取决于发动机转速和感应管压力。 还提供了二次空气控制系统，其包括位于排气歧管中的三通阀和电子控制器以及氧气探头。 探头向控制器提供与排气中的氧气浓度相关的信号，并且控制器使用该信号来致动三通阀，其将感应管压力或可选的排气系统压力引导到控制室中 主调节系统，从而影响供应给发动机排气歧管的新鲜空气量。
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