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1.发明授权
公开(公告)号：US4510036A
公开(公告)日：1985-04-09
申请号：US457888
申请日：1983-01-14
IPC分类号： G01N27/41 , G01N27/406 , G01N27/409 , G01N27/58
CPC分类号： G01N27/4065
摘要： The invention provides a limiting electric current type oxygen sensor with a microheater, having: an oxygen ionic conductor; an anode and a cathode respectively formed on two major surfaces of the oxygen ionic conductor; an insulating film which has a porosity of not less than 0.2 [%], an average pore diameter of not less than 140 [.ANG.], and a thickness between 0.2 [.mu.m] and 10 [.mu.m], and which is formed on one of the anode and the cathode so as to regulate a flow rate of oxygen gas and to provide electrical insulation; and the microheater formed on the insulating film. The oxygen ionic conductor is electrically insulated from the microheater through the insulating film. The invention also provides a limiting electric current type oxygen concentration detecting device having the limiting electric current type oxygen sensor and a constant temperature control circuit.
摘要翻译： 本发明提供一种具有微加热器的极限电流型氧传感器，具有：氧离子导体; 分别形成在氧离子导体的两个主表面上的阳极和阴极; 绝缘膜的孔隙率不小于0.2 [％]，平均孔径不小于140 [ANGSTROM]，厚度在0.2μm和10μm之间，并且形成在 阳极和阴极之一，以调节氧气的流量并提供电绝缘; 和形成在绝缘膜上的微加热器。 氧离子导体通过绝缘膜与微加热器电绝缘。 本发明还提供一种具有极限电流型氧传感器和恒温控制电路的极限电流型氧浓度检测装置。
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公开(公告)号：US4595485A
公开(公告)日：1986-06-17
申请号：US775741
申请日：1985-09-13
IPC分类号： G01N27/41 , G01N27/404 , G01N27/406 , G01N27/409 , G01N27/56
CPC分类号： G01N27/4065
摘要： A limiting electric current type oxygen sensor comprising a first electrode of a gas-permeable film, a thin solid electrolyte film which is crystallized along one direction to decrease resistance and which has a thickness falling in the range between 0.1 .mu.m and 30 .mu.m, and a second electrode of a gas-permeable film sequentially formed on an electrically insulating substrate. This limiting electric current type oxygen sensor is also provided with a porous coating layer or a dense coating layer. The porous coating layer made of Al.sub.2 O.sub.3, SiO.sub.2, spinnel, SiC, Si.sub.3 N.sub.4 and etc., has a porosity of not more than 30% and a thickness of not less than 1 .mu.m, and serves as a gas diffusion flow rate-determining portion. The dense coating layer serves to control a gas permeation path such that either the first electrode or the substrate is used as the gas diffusion flow rate-determining portion.
摘要翻译： 一种限制电流型氧传感器，包括透气膜的第一电极，沿一个方向结晶以降低电阻并且具有落在0.1μm至30μm之间的厚度的薄固体电解质膜， 以及依次形成在电绝缘基板上的透气膜的第二电极。 该极限电流型氧传感器还设置有多孔涂层或致密涂层。 由Al2O3，SiO2，尖晶石，SiC，Si3N4等制成的多孔涂层的孔隙率不大于30％，厚度不小于1μm，用作气体扩散流速确定部分 。 致密涂层用于控制气体渗透路径，使得第一电极或基板用作气体扩散流速确定部分。
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3.发明授权Apparatus with polarographic sensor to detect concentrations of plurality of gas components 失效具有极谱法传感器以检测多个气体成分浓度的装置
公开(公告)号：US4576705A
公开(公告)日：1986-03-18
申请号：US613969
申请日：1984-05-24
IPC分类号： G01N27/41 , G01N27/406 , G01N27/48 , G01N33/00
CPC分类号： G01N27/4065
摘要： An apparatus for detecting concentrations of a plurality of gas components has a single polarographic sensor capable of detecting an oxygen concentration and a composite concentration of oxygen gas, carbon dioxide gas and steam. A first voltage is applied to the polarographic sensor which then measures only the oxygen concentration, or a second voltage is applied to the sensor which then measures only the composite concentration of oxygen gas, carbon dioxide gas and steam. The first and second voltages are applied to the sensor in a time division manner. Upon application of first and second voltages in such a time division manner, corresponding currents flowing through the sensor are detected to obtain signals corresponding to the oxygen concentration and the composite concentration of oxygen gas, carbon dioxide gas and steam. The signal corresponding to the oxygen concentration is subtracted by an operational amplifier from the signal corresponding to the composite concentration of oxygen gas, carbon dioxide gas and steam, thereby obtaining a signal representing a composite concentration of carbon dioxide gas and steam.
摘要翻译： 用于检测多个气体组分的浓度的装置具有能够检测氧浓度和氧气，二氧化碳气体和蒸汽的复合浓度的单个极谱传感器。 将第一电压施加到极谱传感器，其然后仅测量氧浓度，或者将第二电压施加到传感器，然后传感器仅测量氧气，二氧化碳气体和蒸汽的复合浓度。 以时分方式将第一和第二电压施加到传感器。 以这种时分方式施加第一和第二电压时，检测流过传感器的对应电流，以获得对应于氧浓度和氧气，二氧化碳气体和蒸汽的复合浓度的信号。 对应于氧浓度的信号由运算放大器从对应于氧气，二氧化碳气体和蒸汽的复合浓度的信号中减去，从而获得表示二氧化碳气体和蒸汽的复合浓度的信号。
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公开(公告)号：US4574264A
公开(公告)日：1986-03-04
申请号：US552201
申请日：1983-11-15
摘要： A thin film oxygen sensor with a microheater incorporates an oxide semiconductor and has an integral structure of a sensor portion and a heater portion, wherein a porous catalyst layer is formed on a surface of the sensor portion, and a thickness and an average pore diameter of the catalyst layer are determined such that a ratio of the thickness to the average pore diameter falls within a range of 50 to 3,000. The oxygen sensor has good reproducibility, high stability, and high sensitivity for changing a resistance in response to a change in an oxygen content in an atmosphere. The oxygen sensor can be manufactured at low cost and has a compact construction.
摘要翻译： 具有微加热器的薄膜氧传感器结合有氧化物半导体，并且具有传感器部分和加热器部分的整体结构，其中在传感器部分的表面上形成多孔催化剂层，并且其厚度和平均孔径为 确定催化剂层，使得厚度与平均孔径的比率落在50至3,000的范围内。 氧传感器响应于大气中氧含量的变化而具有良好的再现性，高稳定性和高灵敏度。 氧传感器可以低成本制造，结构紧凑。
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公开(公告)号：US4661234A
公开(公告)日：1987-04-28
申请号：US812907
申请日：1985-12-23
IPC分类号： G01N27/419 , G01N27/12 , G01N27/406 , G01N27/409 , G01N27/58
CPC分类号： G01N27/4065
摘要： An air-fuel ratio sensor comprising a limiting electric current type oxygen sensor portion, having a sequential stacking on a porous substrate of a first electrode with high gas permeability, a solid electrolytic thin film having a specific crystal orientation, a thickness of 0.1 to 30 .mu.m, and good crystallinity. The limiting electric current type oxygen sensor portion and second electrode with a high gas permeability, is arranged and connected in parallel with a resistive type oxygen sensor portion having interdigital electrodes formed on one or both major surfaces of an oxide semiconductor thin film, the resistance of which changes in accordance with oxygen partial pressure. The air-fuel ratio sensor also has a sensor heater formed on one surface of the porous substrate around the sensor portions. The overall structure of the sensor is coated with a porous ceramic coating to which a catalyst is added.
摘要翻译： 一种空燃比传感器，包括极限电流型氧传感器部分，其具有顺序堆叠在具有高透气性的第一电极的多孔基底上，具有特定结晶取向的固体电解薄膜，厚度为0.1至30 微米，结晶度好。 具有高透气性的极限电流型氧传感器部分和第二电极被布置和并联连接到具有形成在氧化物半导体薄膜的一个或两个主表面上的交叉指状电极的电阻型氧传感器部分， 其根据氧分压而变化。 空燃比传感器还具有形成在传感器部分周围的多孔基材的一个表面上的传感器加热器。 传感器的整体结构涂覆有添加有催化剂的多孔陶瓷涂层。
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公开(公告)号：US4500412A
公开(公告)日：1985-02-19
申请号：US404900
申请日：1982-08-03
IPC分类号： G01N27/12 , G01N27/407 , G01N27/413 , H05B3/14 , G01N27/58
CPC分类号： G01N27/4071 , G01N27/12
摘要： A sensor which has an insulating substrate on which is formed a heater layer for heating the sensor on a part thereof and which is operated above a predetermined temperature. The heater layer is made of a material which has a thickness of 0.2 .mu.m to 20 .mu.m and which is made of platinum, rhodium, palladium or a mixture thereof. The insulating substrate is made of alumina, quartz, spinel, magnesia, zirconia, or mixtures thereof. A heater protective layer having a thickness of 0.01 .mu.m to 500 .mu.m is made of materials based on alumina, silica, spinel, magnesia, zirconia or mixtures thereof.
摘要翻译： 一种具有绝缘基板的传感器，其上形成有加热器层，用于在其一部分上加热传感器并在预定温度以上运行。 加热器层由厚度为0.2μm至20μm的材料制成，并由铂，铑，钯或其混合物制成。 绝缘基板由氧化铝，石英，尖晶石，氧化镁，氧化锆或其混合物制成。 厚度为0.01μm〜500μm的加热器保护层由基于氧化铝，二氧化硅，尖晶石，氧化镁，氧化锆或其混合物的材料制成。
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公开(公告)号：US5480535A
公开(公告)日：1996-01-02
申请号：US174126
申请日：1993-12-27
IPC分类号： G01N27/407 , G01N27/417 , G01N27/41 , G01N27/409
CPC分类号： G01N27/4071 , G01N27/417
摘要： A thin film mutilayered air-fuel ratio sensor having a sensor element including a first electrode formed on a porous substrate, a first solid electrolyte and a third electrode formed on the first electrode in this order, in such a manner that the first electrode is completely covered by the first solid electrolyte inclusive of its surroundings, and that the first solid electrolyte is completely covered by the third electrode inclusive of its surroundings, a second solid electrolyte and a fourth electrode and formed on the third electrode in this order, in such a manner that the peripheral portion of the third electrode is left uncovered by the second solid electrolyte and the fourth electrode and thereby left exposed. The first electrode, the third electrode, and the fourth electrode are made of a gas-permeable porous platinum, and the first solid electrolyte and the second solid electrolyte are made of a gas-permeable dense solid electrolyte having oxygen ion conductivity. The sensor has far improved performance as compared to the conventional ones and can be made compact.
摘要翻译： 一种具有传感器元件的薄膜多层空气燃料比传感器，其传感器元件包括形成在多孔基材上的第一电极，第一固体电解质和形成在第一电极上的第三电极，以使得第一电极完全 被包围其周围的第一固体电解质覆盖，并且第一固体电解质被包括其周围的第三电极完全覆盖，第二固体电解质和第四电极，并且以这种顺序形成在第三电极上 使得第三电极的周边部分不被第二固体电解质和第四电极覆盖，从而露出。 第一电极，第三电极和第四电极由透气性多孔铂制成，第一固体电解质和第二固体电解质由具有氧离子传导性的透气性致密固体电解质构成。 该传感器与常规传感器相比具有非常好的性能，并且可以使其紧凑。
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公开(公告)号：US4844788A
公开(公告)日：1989-07-04
申请号：US263875
申请日：1988-10-28
申请人： Hideaki Takahashi , Haruyoshi Kondo , Keiichi Saji
发明人： Hideaki Takahashi , Haruyoshi Kondo , Keiichi Saji
IPC分类号： G01N27/41 , F02D41/14 , G01N27/00 , G01N27/12 , G01N27/409 , G01N27/416 , G01N27/419
CPC分类号： F02D41/1455 , G01N27/122
摘要： An air/fuel ratio sensor has a porous alumina substrate, a limiting current type oxygen detecting section on the porous alumina substrate for detecting the air/fuel ratio in the fuel lean region, a resistance-variable type oxygen detecting section on the porous alumina substrate for detecting the excess air ratio .lambda. when .lambda. is equal to one, a gas decomposition type hydrogen detecting section on the porous alumina substrate for detecting the air/fuel ratio in the fuel rich region and a heater for heating the respective detecting sections to the optimum temperature in operation, whereby the sensor can detect the air/fuel ratio over all the fuel rich and lean regions.In addition the apparatus includes a comparing/discriminating section for comparing the output of the resistance-variable type oxygen detection section with a reference value to discriminate whether the ambient atmosphere is in either of the fuel rich or lean region, a switching control section for changing each of the limiting current type oxygen detecting section from its operative position to its inoperative position or vice versa, depending on the result from the comparing/discriminating section, and an output signal adding section for adding the output signals from both the detecting sections to generate an output signal representative of an air/fuel ratio.
摘要翻译： 空气/燃料比传感器具有多孔氧化铝基板，多孔氧化铝基板上的限制电流型氧检测部，用于检测稀燃区域中的空燃比，多孔氧化铝基板上的电阻变化型氧检测部 用于在λ等于1时检测过剩空气比λ;在多孔氧化铝衬底上用于检测富燃区域中的空燃比的气体分解型氢气检测部分，以及用于将各检测部分加热到最佳状态的加热器 运行温度，从而传感器可以检测所有富燃料区和贫气区的空燃比。 此外，该装置包括比较/鉴别部分，用于将电阻变化型氧气检测部分的输出与参考值进行比较，以鉴别环境气氛是否处于富燃料区域或贫气区域中的任何一个;切换控制部分，用于改变 每个极限电流型氧检测部分从其操作位置到其不工作位置，反之亦然，这取决于比较/鉴别部分的结果，以及输出信号添加部分，用于将来自两个检测部分的输出信号相加以产生 表示空燃比的输出信号。
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公开(公告)号：US4993386A
公开(公告)日：1991-02-19
申请号：US459421
申请日：1989-12-29
IPC分类号： F01M3/02 , F01P7/16 , F02B1/02 , F02B1/04 , F02B3/06 , F02B19/08 , F02B75/02 , F02D15/04 , F02D19/12 , F02D41/00
CPC分类号： F02D15/04 , F01M3/02 , F01P7/16 , F02B1/02 , F02B19/08 , F02D19/084 , F02D19/088 , F02D19/12 , F02D41/0025 , F01P2023/08 , F02B1/04 , F02B2075/025 , F02B3/06 , F02D19/0655 , F02D19/0665 , F02D19/0692 , F02D19/081 , F02D2200/0612 , F02D2400/04 , Y02T10/125 , Y02T10/36
摘要： An operation control system for an engine using alcohol fuel or mixed fuel of alcohol and hydrocarbon, or for an engine supplying cooling liquid such as alcohol, water or the like as fuel. Vapor concentration in exhaust gas and an air excess ratio of air-fuel mixture are detected, and a supply rate of alcohol, a water absorption ratio of alcohol or an amount of the cooling liquid is computed on the basis of the vapor concentration and the air excess ratio. Ignition timing, temperature of the coolant, a compression ratio and an air excess ratio are controlled on the basis of the supply rate of alcohol or the water absorption ratio of alcohol. Further, the cooling liquid is supplied which has its amount computed at a heavy load. Thus, operational performance of the engine is improved.
摘要翻译： 使用酒精燃料或醇和碳氢化合物的混合燃料的发动机的操作控制系统，或用于将诸如酒精，水等的冷却液作为燃料的发动机。 检测废气中的气体浓度和空气 - 燃料混合物的空气过剩率，并且基于蒸气浓度和空气计算醇的供应速率，醇的吸水率或冷却液的量 超额比例。 基于酒精的供给速率或酒精的吸水率来控制点火正时，冷却剂的温度，压缩比和空气过剩率。 此外，提供冷却液，其具有在重负荷下计算的量。 因此，提高了发动机的操作性能。
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10.发明授权
公开(公告)号：US4472262A
公开(公告)日：1984-09-18
申请号：US381025
申请日：1982-05-24
申请人： Haruyoshi Kondo , Keiichi Saji , Takashi Takeuchi , Yasuhiro Otsuka , Toshinobu Furutani , Mari Okazaki
发明人： Haruyoshi Kondo , Keiichi Saji , Takashi Takeuchi , Yasuhiro Otsuka , Toshinobu Furutani , Mari Okazaki
IPC分类号： G01N27/41 , G01N27/406 , G01N27/409 , G01N27/56 , G01N27/30 , G01N27/58
CPC分类号： G01N27/4065
摘要： An oxygen concentration detector provided with an oxygen concentration sensor further provided with an oxygen ionic conductor, a cathode placed on one surface of the oxygen ionic conductor, an anode placed on the other surface of the oxygen ionic conductor, and a layer convering the cathode for regulating the diffusion of oxygen gas toward the cathode. Temperature compensation is applied to the output of the detector which is inherently influenced by the temperature of the sensor. More specifically, an oxygen concentration detector is provided with the foregoing oxygen concentration sensor, and voltage or current is alternatively supplied to the sensor to measure a limiting current of the sensor and internal resistance of the sensor, and the current or the voltage produced by the foregoing application of voltage or current, and a temperature compensation is applied to the detected magnitude of limiting current according to the internal resistance of the sensor.
摘要翻译： 一种设置有氧浓度传感器的氧浓度检测器，其还设置有氧离子导体，设置在氧离子导体的一个表面上的阴极，放置在氧离子导体的另一表面上的阳极，以及将阴极会聚到 调节氧气向阴极的扩散。 温度补偿被施加到检测器的输出，其本身受到传感器的温度的影响。 更具体地说，氧浓度检测器具有上述氧浓度传感器，并且将电压或电流交替地供应到传感器以测量传感器的限制电流和传感器的内部电阻，以及由该传感器产生的电流或电压 上述施加电压或电流，并且根据传感器的内部电阻对检测到的限制电流的大小进行温度补偿。
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