公开(公告)号：US4302312A

公开(公告)日：1981-11-24

申请号：US172227

申请日：1980-07-25

申请人： Shigeo Ishitani ,  Shinji Kimura ,  Hiroshi Takao ,  Masaaki Uchida

发明人： Shigeo Ishitani ,  Shinji Kimura ,  Hiroshi Takao ,  Masaaki Uchida

IPC分类号： F02B1/04 ,  F02D35/00 ,  F02D41/14 ,  F02D41/34 ,  F02P5/15 ,  F02P5/152 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/417 ,  G01N27/58

CPC分类号： G01N27/4071 ,  F02D41/1476 ,  F02D41/1479 ,  G01N27/4065 ,  G01N27/417 ,  F02B1/04

摘要： A device comprising an oxygen-sensitive element to be disposed in combustion gas exhausted from a combustor to detect deviation of actual air/fuel mixing ratio of a mixture supplied to the combustor from a stoichiometric ratio. The element is a combination of two oxygen concentration cells each having a solid electrolyte layer, a measurement electrode layer formed on one side of the electrolyte layer and a reference electrode layer formed on the opposite side and covered with a shield layer. The device includes DC power supply means for forcing a current to flow through the solid electrolyte layer of each cell thereby to cause migration of oxygen ions therethrough, from the measurement electrode to the reference electrode in one cell and reversely in the other cell, and a circuit to make a comparison between first and second output voltages respectively developed by the first and second cells to examine which one of these two output voltages is higher than the other and produce a control signal according to the result of the comparison. The signal-producing function is not influenced by the temperature of the element so that a correct control signal can be produced even when the element is not yet sufficiently heated.

摘要翻译： 一种装置，其特征在于，设置在从燃烧器排出的燃烧气体中的氧敏感元件，以从化学计量比检测供给燃烧器的混合物的实际空气/燃料混合比的偏差。 元素是两个氧浓度电池的组合，每个氧浓度电池各自具有固体电解质层，在电解质层的一侧上形成的测量电极层和形成在相对侧并被屏蔽层覆盖的参考电极层。 该装置包括用于迫使电流流过每个电池的固体电解质层的直流电源装置，从而使氧离子从一个电池中的测量电极迁移到参考电极，并在另一个电池中相反地移动， 电路，以分别由第一和第二单元开发的第一和第二输出电压进行比较，以检查这两个输出电压中的哪一个高于另一个，并根据比较结果产生控制信号。 信号产生功能不受元件温度的影响，使得即使元件尚未充分加热也可以产生正确的控制信号。

公开(公告)号：US4306957A

公开(公告)日：1981-12-22

申请号：US172228

申请日：1980-07-25

申请人： Shigeo Ishitani ,  Shinji Kimura ,  Hiroshi Takao ,  Masaaki Uchida

发明人： Shigeo Ishitani ,  Shinji Kimura ,  Hiroshi Takao ,  Masaaki Uchida

IPC分类号： F02B1/04 ,  F02D41/14 ,  F02D41/34 ,  F02P5/15 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/417 ,  G05B23/02 ,  G01N27/58

CPC分类号： G01N27/4071 ,  F02D41/1476 ,  G01N27/4065 ,  G01N27/417 ,  F02B1/04

摘要： A device comprising an oxygen-sensitive element to be disposed in a combustion gas exhausted from a combustor to detect deviation of actual air/fuel ratio from a stoichiometric ratio. The element is a combination of two oxygen concentration cells each having a solid electrolyte layer, a measurement electrode layer formed on one side of the electrolyte layer, a reference electrode layer formed on the opposite side and covered with a shield layer. Either measurement electrode layers or reference electrode layers of the two cells are connected to each other, and a constant DC voltage is applied to the element to force a current to flow through solid electrolyte layers of both cells to cause migration of oxygen ions therethrough, from the measurement electrode to the reference electrode in one cell and reversely in the other. The device has a circuit to make a comparison between a fixed reference voltage and an output voltage developed between the measurement and reference electrodes of one cell of the element to produce a high-or-low level control signal according to the result of the comparison. The output voltage is independent of the internal resistance of the element and is scarcely affected by the temperature of the element.

摘要翻译： 一种装置，其包括氧气敏感元件，其设置在从燃烧器排出的燃烧气体中，以检测实际空气/燃料比与化学计量比的偏差。 该元件是两个氧浓度电池的组合，每个氧浓度电池均具有固体电解质层，在电解质层一侧形成的测量电极层，在相对侧形成并被屏蔽层覆盖的参考电极层。 两个电池的测量电极层或参考电极层彼此连接，并且将恒定的直流电压施加到元件上以迫使电流流过两个电池的固体电解质层，以使氧离子从其中移出，从 测量电极与一个电池中的参考电极反向相反。 器件具有电路，用于比较固定的参考电压和在元件的一个单元的测量参考电极和参考电极之间产生的输出电压，以根据比较结果产生高电平或低电平的控制信号。 输出电压与元件的内阻无关，几乎不受元件温度的影响。

公开(公告)号：US4224113A

公开(公告)日：1980-09-23

申请号：US28747

申请日：1979-04-10

申请人： Shinji Kimura ,  Hiroshi Takao ,  Shigeo Ishitani ,  Kenji Ikezawa ,  Hiroyuki Aoki

发明人： Shinji Kimura ,  Hiroshi Takao ,  Shigeo Ishitani ,  Kenji Ikezawa ,  Hiroyuki Aoki

IPC分类号： G01N27/409 ,  F02D41/14 ,  F02P5/15 ,  G01N27/406 ,  G01N27/407 ,  G01N27/58

CPC分类号： G01N27/4071 ,  G01N27/4065

摘要： A method of detecting numerical values for air/fuel ratio of either a lean air-fuel mixture or a rich mixture supplied to, for example, a combustion engine by means of an oxygen sensor disposed in the exhaust gas. The sensor comprises a porous measurement electrode layer on one side of a porous solid electrolyte layer, e.g., of zirconia and a porous reference electrode layer on the other side with a shield layer thereon, so that the reference electrode layer communicates with the exhaust gas through pores in the sensor. Measurement is accomplished by keeping a DC current flowing between the two electrode layers to establish a reference oxygen partial pressure on the reference electrode side. The intensity of the current is made below a critical value above which an EMF generated by the sensor becomes substantially constant unless the air/fuel ratio changes across the stoichiometric ratio, and the direction of the current flow is chosen depending on whether the air-fuel mixture is a lean one or a rich one.

摘要翻译： 通过设置在排气中的氧传感器来检测供给到例如内燃机的贫空燃混合物或富混合物的空/燃比的数值的方法。 该传感器包括在多孔固体电解质层（例如氧化锆）的一侧上的多孔测量电极层和另一侧上具有屏蔽层的多孔参比电极层，使得参考电极层与排气通过 传感器孔。 通过保持直流电流在两个电极层之间流动以在参考电极侧上建立参考氧分压来实现测量。 电流的强度低于临界值，高于此值的情况下，传感器产生的EMF变得基本恒定，除非空气/燃料比在化学计量比上变化，并且电流方向取决于空气燃料 混合物是稀薄的或富有的。

公开(公告)号：US4207159A

公开(公告)日：1980-06-10

申请号：US12763

申请日：1979-02-16

申请人： Shinji Kimura ,  Hiroshi Takao ,  Shigeo Ishitani ,  Kenji Ikezawa ,  Koki Sone

发明人： Shinji Kimura ,  Hiroshi Takao ,  Shigeo Ishitani ,  Kenji Ikezawa ,  Koki Sone

IPC分类号： G01N27/409 ,  F02D41/14 ,  F02P5/15 ,  G01N27/406 ,  G01N27/407 ,  G01N27/416 ,  G01N27/58

CPC分类号： G01N27/4071 ,  G01N27/4065

摘要： An apparatus comprising a probe having an oxygen ion conductive solid electrolyte layer, a potentiometer and a DC power source connected to the probe. The probe comprises a porous and electronically conductive reference electrode layer on one side of the solid electrolyte layer, a similar measurement electrode layer on the other side of the electrolyte layer and a separation layer of an inactive material on the outer side of the reference electrode layer. The separation layer or the solid electrolyte layer, or both, has a porous structure and is formed such that the reference electrode communicates with an exterior atmosphere only through this porous structure, while either the separation layer or the electrolyte layer serves as a substrate of the probe. During measurement, the DC power source keeps a current flowing through the electrolyte layer between the two electrode layers to maintain a reference oxygen partial pressure at the interface between the electrolyte layer and the reference electrode layer.

摘要翻译： 一种装置，包括具有氧离子传导固体电解质层的探针，电位计和连接到探针的直流电源。 探针包括在固体电解质层的一侧上的多孔和电子导电的参比电极层，在电解质层的另一侧上的类似的测量电极层和在参考电极层的外侧上的非活性材料的分离层 。 分离层或固体电解质层或两者均具有多孔结构，并且形成为使得参考电极仅通过该多孔结构与外部气氛连通，而分离层或电解质层用作 探测。 在测量期间，DC电源保持电流流过两个电极层之间的电解质层，以保持电解质层与参考电极层之间界面处的参考氧分压。

公开(公告)号：US4264425A

公开(公告)日：1981-04-28

申请号：US152857

申请日：1980-05-23

申请人： Shinji Kimura ,  Hiroshi Takao ,  Shigeo Ishitani ,  Kenji Ikezawa ,  Hiroyuki Aoki

发明人： Shinji Kimura ,  Hiroshi Takao ,  Shigeo Ishitani ,  Kenji Ikezawa ,  Hiroyuki Aoki

IPC分类号： E04D11/02 ,  B32B11/00 ,  B32B11/04 ,  B32B11/10 ,  C09D121/00 ,  C09D145/00 ,  C09D175/00 ,  C09D195/00 ,  F02M7/00 ,  G01N27/407 ,  G01N27/413 ,  G01N27/417 ,  G01N27/58

CPC分类号： G01N27/4071 ,  G01N27/417

摘要： A device having an oxygen sensing probe to be disposed in a combustion gas to detect actual air/fuel ratio values of an air-fuel mixture subjected to combustion. The probe is a combination of two oxygen concentration cells each having a porous solid electrolyte layer such as of zirconia, a porous measurement electrode layer on one side of the solid electrolyte layer and a reference electrode layer on the other side, with a shield layer thereon. Either the shield layers of the two cells or the solid electrolyte layers of the two cells are provided by a single layer which serves also as a substrate of the entire probe. The device includes DC power supply means for forcing a current to flow through the solid electrolyte of each cell thereby to cause oxygen ions to migrate through each solid electrolyte layer, from the reference electrode layer to the measurement electrode layer in one cell and reversely in the other cell. Both air/fuel ratios above a stoichiometric ratio inclusive and air/fuel ratios below the soichiometric ratio inclusive can be detected by this device.

摘要翻译： 一种具有氧传感探针的装置，其设置在燃烧气体中，以检测经历燃烧的空气 - 燃料混合物的实际空气/燃料比值。 探针是两个氧浓缩电池的组合，每个氧浓度电池具有诸如氧化锆的多孔固体电解质层，在固体电解质层的一侧上的多孔测量电极层和另一侧上的参考电极层，其上具有屏蔽层 。 两个电池的屏蔽层或两个电池的固体电解质层中的任一个都由用作整个探针的基底的单层提供。 该装置包括用于迫使电流流过每个电池的固体电解质的直流电源装置，从而使氧离子从一个电池中的参考电极层到测量电极层通过每个固体电解质层迁移，并且在 其他细胞 可以通过该装置检测到高于化学计量比的空气/燃料比以及低于化学计量比的空气/燃料比。

公开(公告)号：US4439911A

公开(公告)日：1984-04-03

申请号：US442231

申请日：1982-11-16

申请人： Kenji Ikezawa ,  Hiroshi Takao ,  Satoshi Ambe ,  Masaaki Uchida

发明人： Kenji Ikezawa ,  Hiroshi Takao ,  Satoshi Ambe ,  Masaaki Uchida

IPC分类号： G01N27/04 ,  F02B77/08 ,  G01N27/12 ,  G01N27/28 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/416 ,  G01N27/58

CPC分类号： G01N27/4071 ,  Y10T29/417

摘要： At least a portion of an oxygen sensor element support to which portion an oxygen sensor element directly contacts is constructed of an heat insulating material having very low thermal conductivity, so that the heat release from the oxygen sensor element is minimized.

摘要翻译： 氧传感器元件直接接触的部分的至少一部分氧传感器元件支撑体由具有非常低的热导率的绝热材料构成，从而使氧传感器元件的热释放最小化。

公开(公告)号：US4421787A

公开(公告)日：1983-12-20

申请号：US263558

申请日：1981-05-14

申请人： Kenji Ikezawa ,  Hiroshi Takao ,  Hiroyuki Aoki ,  Shinji Kimura

发明人： Kenji Ikezawa ,  Hiroshi Takao ,  Hiroyuki Aoki ,  Shinji Kimura

IPC分类号： B05D5/12 ,  B05D1/38 ,  C04B41/50 ,  C04B41/87 ,  G01N27/407 ,  G01N27/409 ,  G01N27/416 ,  H01M6/18 ,  H01M8/12 ,  H05K3/24

CPC分类号： G01N27/4073 ,  C04B41/5025 ,  C04B41/87 ,  G01N27/4071 ,  H01M6/188 ,  H01M8/1246 ,  H05K3/245 ,  H05K1/092 ,  H05K1/095 ,  H05K2201/0195 ,  H05K2201/10151 ,  H05K2203/1476 ,  H05K3/28 ,  Y02E60/525 ,  Y02P70/56

摘要： A process for forming a thin dense layer from a paste of powder in organic vehicle, comprises applying the paste onto a substrate by a screen printing technique, drying and sintering the applied paste under sintering conditions, and repeating the above procedure at least one more time, so as to yield a thin dense sintered layer which is longer in lifetime and more stable in quality than those obtained by known techniques.

摘要翻译： 一种从有机载体中的粉末糊形成薄致密层的方法，包括通过丝网印刷技术将糊剂施加到基材上，在烧结条件下干燥和烧结所施加的糊料，并再次至少再次进行上述步骤 ，以产生比通过已知技术获得的那些更高的提升时间和更稳定的薄致密烧结层。

公开(公告)号：US4407057A

公开(公告)日：1983-10-04

申请号：US369079

申请日：1982-04-16

申请人： Shinji Kimura ,  Hiroshi Takao ,  Satoshi Ambe ,  Yoshio Akimune

发明人： Shinji Kimura ,  Hiroshi Takao ,  Satoshi Ambe ,  Yoshio Akimune

IPC分类号： G01N27/409 ,  F02P5/15 ,  G01N27/407 ,  G01N27/413 ,  G01N27/416 ,  H01M8/12 ,  G01N27/58 ,  H01G9/04 ,  H01G9/24

CPC分类号： G01N27/4075 ,  G01N27/4071 ,  G01N27/4077 ,  H01M8/1213 ,  H01M4/905 ,  H01M4/9066 ,  Y10T29/417

摘要： In an oxygen sensor comprising an oxygen ion conductive solid electrolyte, an electronically conductive reference electrode layer formed on one side of the electrolyte layer, an electronically conductive measurement electrode layer formed on the other side of the electrolyte layer, and a partition layer of an electrochemically inactive material formed on the outer side of the reference electrode layer, at least one of the reference and measurement electrode layers has a plurality of openings through which two layers which put therebetween the one of the electrode layers are united with each other.

摘要翻译： 在包含氧离子导电固体电解质的氧传感器中，形成在电解质层的一侧上的电子导电参比电极层，形成在电解质层另一侧的电子导电测量电极层和电化学上的分隔层 形成在参考电极层的外侧上的非活性材料，参考电极层和测量电极层中的至少一个具有多个开口，将两个电极层之间放置的两个层彼此结合在一起。

公开(公告)号：US4338356A

公开(公告)日：1982-07-06

申请号：US169031

申请日：1980-07-15

申请人： Yoshio Akimune ,  Satoshi Ambe ,  Hiroshi Takao ,  Shinji Kimura

发明人： Yoshio Akimune ,  Satoshi Ambe ,  Hiroshi Takao ,  Shinji Kimura

IPC分类号： G01N27/409 ,  C23C24/08 ,  G01N27/407 ,  G01N27/416 ,  H01M8/12 ,  B05D5/12

CPC分类号： G01N27/4073 ,  G01N27/4071 ,  H01M8/12 ,  H01M8/1253 ,  Y02E60/525 ,  Y02P70/56

摘要： A method of producing a flat solid electrolyte layer of a flat film type oxygen sensor is disclosed. The method comprises in steps, (a) preparing first and second electrolyte pastes each containing stabilizer, the content of stabilizer in the first electrolyte paste being smaller than that in the second electrolyte paste, (b) applying the first electrolyte paste onto an electrode layer and then applying the second electrolyte paste onto the outer face of the first electrolyte paste to form a layered paste heap on the electrode layer, and (c) firing the layered paste heap to form a solid electrolyte layer on the electrode layer. With this production method, the stabilizer is uniformly and homogeneously distributed into the body of the fired electrolyte layer.

摘要翻译： 公开了一种平板型氧传感器的扁平固体电解质层的制造方法。 该方法包括以下步骤：（a）制备每个包含稳定剂的第一和第二电解质浆料，第一电解质浆料中的稳定剂含量小于第二电解质浆料中的稳定剂含量，（b）将第一电解质糊剂施加到电极层 然后将第二电解质浆料涂敷到第一电解质浆料的外表面上，以在电极层上形成层状糊料堆，（c）对层叠的糊料堆进行焙烧以在电极层上形成固体电解质层。 通过该制造方法，稳定剂均匀均匀地分布在烧结电解质层的主体中。

公开(公告)号：US4345985A

公开(公告)日：1982-08-24

申请号：US219841

申请日：1980-12-23

申请人： Masayuki Tohda ,  Hiroshi Takao ,  Shinji Kimura

发明人： Masayuki Tohda ,  Hiroshi Takao ,  Shinji Kimura

IPC分类号： G01N27/409 ,  C23C14/00 ,  C25B11/08 ,  G01N27/28 ,  G01N27/407 ,  G01N27/416 ,  H01M8/12 ,  B05D5/12

CPC分类号： G01N27/4071 ,  H01M4/9058

摘要： A method of producing an oxygen sensing element which is essentially an oxygen concentration cell in the form of a lamination of relatively thin layers. The first step of the method is to prepare a lamination of a ceramic shield layer, an inner or reference electrode layer, a solid electrolyte layer and an outer or measurement electrode layer which is formed by sintering metal particles applied to the solid electrolyte layer surface in the form of a paste or slurry and dried. Then an additional measurement electrode layer, preferably not thicker than 1.0 micron, is formed on the outer surface of the sintered measurement electrode layer by a physical vapor deposition technique such as ion plating, sputtering or vacuum evaporation. Preferably this electrode layer is formed by a two-stage vapor deposition process wherein the first stage deposition is terminated before the deposited layer becomes thicker than 0.5 microns. The addition of the vapor-deposited measurement electrode layer improves the responsiveness and durability of the oxygen sensing element.

摘要翻译： 一种生产氧传感元件的方法，该感测元件基本上是层叠相对较薄层的氧浓度单元。 该方法的第一步是制备陶瓷屏蔽层，内部或参考电极层，固体电解质层和通过烧结施加到固体电解质层表面的金属颗粒形成的外部或测量电极层的叠层 糊状或浆液的形式并干燥。 然后，通过物理气相沉积技术如离子镀，溅射或真空蒸发，在烧结的测量电极层的外表面上形成优选不超过1.0微米的另外的测量电极层。 优选地，该电极层通过两级气相沉积工艺形成，其中第一阶段沉积在沉积层变得比0.5微米厚之前终止。 蒸镀测量电极层的添加提高了氧传感元件的响应性和耐久性。