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    Method for detecting an oxygen concentration and a method for controlling an air-to-fuel ratio based on the detected oxygen concentration
    1.
    发明授权
    Method for detecting an oxygen concentration and a method for controlling an air-to-fuel ratio based on the detected oxygen concentration 失效
    用于检测氧浓度的方法和基于检测到的氧浓度来控制空燃比的方法

    公开(公告)号：US4553424A

    公开(公告)日：1985-11-19

    申请号：US477845

    申请日：1983-03-22

    申请人： Shigenori Sakurai ,  Takashi Kamo ,  Shirou Kimura

    发明人： Shigenori Sakurai ,  Takashi Kamo ,  Shirou Kimura

    IPC分类号： F02D41/14 ,  F02D41/24 ,  G01N27/406 ,  G01N27/04

    CPC分类号： F02D41/1476 ,  F02D41/1455 ,  F02D41/1479 ,  F02D41/2496 ,  G01N27/4065 ,  F02D41/1456

    摘要： A method for detecting the oxygen concentration of a gas to be measured is disclosed using the limiting current type oxygen sensor. The method is characterized in that the relationship of an inclined straight line between the voltages applied to the oxygen sensor and the currents outputted therefrom is determined in such a manner that the inclined straight line may pass through the flat portions of the limiting current in the voltage-current characteristics curves at the different oxygen concentrations. The relationship between the outputted currents and the oxygen concentrations at the flat portion is such that when a given magnitude of voltage is applied to the oxygen sensor to cause it to output a current, a voltage which corresponds to this current at the inclined straight line is determined. The voltage thus determined is applied to the oxygen sensor to cause it to output a current. The oxygen concentration is determined from the current thus outputted with reference to the outputted current-oxygen concentration conversion straight line. There is also disclosed a method for controlling the air-to-fuel ratio of a gas from an engine using the above voltage-current characteristic curves, inclined straight line and outputted current-oxygen concentration.

    摘要翻译： 公开了使用极限电流型氧传感器来检测待测气体的氧浓度的方法。 该方法的特征在于，施加到氧传感器的电压和从其输出的电流之间的倾斜直线的关系以这样的方式确定：倾斜的直线可以通过电压中的限制电流的平坦部分 - 不同氧浓度下的电流特性曲线。 输出电流和平坦部分的氧浓度之间的关系使得当给氧传感器施加给定的电压以使其输出电流时，在倾斜直线处对应于该电流的电压为 决心。 将如此确定的电压施加到氧传感器以使其输出电流。 从根据输出的电流 - 氧浓度转换直线输出的电流求出氧浓度。 还公开了使用上述电压 - 电流特性曲线，斜直线和输出的电流 - 氧浓度来控制来自发动机的气体的空燃比的方法。

    Oxygen sensor element
    2.
    发明授权
    Oxygen sensor element 失效
    氧传感元件

    公开(公告)号：US4514277A

    公开(公告)日：1985-04-30

    申请号：US429458

    申请日：1982-09-30

    申请人： Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani ,  Shirou Kimura ,  Yoshio Torisu ,  Mari Okazaki

    发明人： Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani ,  Shirou Kimura ,  Yoshio Torisu ,  Mari Okazaki

    IPC分类号： G01N27/41 ,  G01N27/407 ,  G01N27/409 ,  G01N27/416 ,  G01N27/58

    CPC分类号： G01N27/4075

    摘要： An oxygen sensor element having an oxygen ion-permeable solid electrolyte having a tabular or columnar shape and electrode layers formed on the solid electrolyte. At least one of the electrode layers is composed of a fired body having a uniform structure consisting of 100 weight parts of a metal and 0.1 to 10 weight parts of a glass which consists of the following materials in molar amounts: SiO.sub.2, 62-75%; ZrO.sub.2, 7-11%; R.sub.2 O, 13-23%; R'O, 1-10%; Al.sub.2 O.sub.3, 0-4%; B.sub.2 O.sub.3, 0-6%; Fe.sub.2 O.sub.3, 0-5%; CaF.sub.2, 0-2%; and TiO.sub.2, 0-4%; wherein R.sub.2 O is Na.sub.2 O which is substantially pure or is substituted by Li.sub.2 O within 2 mole percent thereof, and R'O is an oxide selected from the group consisting of the alkaline-earth metal oxides, ZnO and MnO. Disclosed also is a method of producing the oxygen sensor element.

    摘要翻译： 一种氧传感器元件，其具有具有平板状或柱状形状的氧离子可透过的固体电解质和在固体电解质上形成的电极层。 电极层中的至少一个由具有由100重量份的金属组成的均匀结构的烧结体和0.1〜10重量份的由以下摩尔量的材料组成的玻璃组成：SiO 2，62-75％ ; ZrO2，7-11％; R2O，13-23％; R'O，1-10％; Al2O3，0-4％; B2O3，0-6％; Fe2O3，0-5％; CaF2，0-2％; 和TiO2，0-4％; 其中R 2 O是Na 2 O，其基本上是纯的或被其2摩尔％以内的Li 2 O取代，R'O是选自碱土金属氧化物，ZnO和MnO的氧化物。 还公开了一种氧传感器元件的制造方法。

    Leanness sensor
    3.
    发明授权
    Leanness sensor 失效
    精密传感器

    公开(公告)号：US4452687A

    公开(公告)日：1984-06-05

    申请号：US386527

    申请日：1982-06-09

    申请人： Yoshio Torisu ,  Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani ,  Mari Okazaki

    发明人： Yoshio Torisu ,  Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani ,  Mari Okazaki

    IPC分类号： G01N27/41 ,  G01N27/30 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/58

    CPC分类号： G01N27/4073 ,  G01N27/407 ,  G01N27/4077

    摘要： A leanness sensor has a sensor element made of an oxygen-permeable solid electrolyte and having a cylindrical form or a form like a vessel closed at one end thereof. The sensor element is provided with metallic electrodes formed on the inner and outer surfaces thereof. An inner metallic member and an outer metallic member are mounted on the sensor element and electrically connected to the metallic electrodes. The sensor element is fixed to the inner side of the end portion of a cylindrical insulating tube.

    摘要翻译： 稀薄传感器具有由透氧性固体电解质制成的传感器元件，并且具有圆柱形或像在其一端封闭的容器的形式。 传感器元件设置有形成在其内表面和外表面上的金属电极。 内部金属构件和外部金属构件安装在传感器元件上并电连接到金属电极。 传感器元件固定在圆柱形绝缘管的端部的内侧。

    Air-fuel ratio detector and method of measuring air-fuel ratio
    4.
    发明授权
    Air-fuel ratio detector and method of measuring air-fuel ratio 失效
    空燃比检测器和空燃比测量方法

    公开(公告)号：US4574627A

    公开(公告)日：1986-03-11

    申请号：US576957

    申请日：1984-02-03

    申请人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

    发明人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

    IPC分类号： G01N27/41 ,  F02D35/00 ,  F02D41/14 ,  G01M15/00 ,  G01N27/409 ,  G01N27/416 ,  G01N27/417

    CPC分类号： G01N27/417

    摘要： An air-fuel ratio detector and an air-fuel ratio measuring method for detecting an oxygen density in an exhaust gas emitted from the internal combustion engine of an automobile. The air-fuel ratio detector has a tubular body and a pair of partition members dividing the tubular body into a closed-end section and an open-end section. At least one of the partition members comprises a solid electrolyte permeable to oxygen ions. A pair of electrodes is mounted on opposite surfaces of the solid electrolyte and connected to a DC power supply, thus constituting an oxygen pump. Another pair of electrodes is mounted on one of the partition members and connected to a DC power supply, thus constituting a limited-current oxygen sensor. Oxygen is introduced into a space between the partition members at all times by the oxygen pump to maintain the gas, which has been supplied through a gas dispersion member into the space, lean.

    摘要翻译： 一种空燃比检测器和用于检测从汽车的内燃机排出的废气中的氧浓度的空燃比测定方法。 空燃比检测器具有管状体和将管状体分成封闭端部和开口端部的一对分隔构件。 至少一个分隔构件包括可渗透氧离子的固体电解质。 一对电极安装在固体电解质的相对表面上并连接到直流电源，从而构成氧气泵。 另一对电极安装在一个分隔构件上并连接到直流电源，从而构成有限电流的氧传感器。 氧气始终通过氧气泵引入分隔构件之间的空间中，以将通过气体分散构件供应的气体维持在空间中。

    Air-fuel ratio detector and method of measuring air-fuel ratio
    5.
    发明授权
    Air-fuel ratio detector and method of measuring air-fuel ratio 失效
    空燃比检测器和空燃比测量方法

    公开(公告)号：US4570479A

    公开(公告)日：1986-02-18

    申请号：US576955

    申请日：1984-02-03

    申请人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

    发明人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

    IPC分类号： G01N27/419 ,  F02D35/00 ,  F02D41/14 ,  G01M15/00 ,  G01N27/407 ,  G01N27/409 ,  G01N27/417

    CPC分类号： G01N27/417

    摘要： A detector and a measuring method for detecting an air-fuel ratio in an internal combustion engine or the like. The detector has a tubular body having a closed end, a solid electrolyte permeable to oxygen ions which divides the interior of the tubular body into a closed-end section and an open-end section, and electrodes mounted on opposite surfaces of the solid electrolyte. One pair of the electrodes on the opposite surfaces of the solid electrolyte is connected to a circuit for detecting an electromotive force, thus constituting an oxygen sensor. The other electrode pair is connected to a DC power supply, thus constituting an oxygen pump. The oxygen sensor detects the quantity of oxygen in a gas supplied through a gas dispersion member. The direction of flow and magnitude of and electric current in the oxygen pump are controlled on the basis of an output from the oxygen sensor for enabling the gas to have a stoichiometric air-fuel ratio.

    摘要翻译： 用于检测内燃机等中的空燃比的检测器和测量方法。 检测器具有封闭端的管状体，可氧化离子的固体电解质，其将管状体的内部分成封闭端部分和开放端部分，以及安装在固体电解质的相对表面上的电极。 在固体电解质的相对表面上的一对电极连接到用于检测电动势的电路，从而构成氧传感器。 另一个电极对连接到直流电源，从而构成氧气泵。 氧气传感器检测通过气体分散构件供给的气体中的氧气的量。 基于来自氧传感器的输出来控制氧泵中的流量和电流的大小和电流的方向，以使气体具有理论空燃比。

    Oxygen sensor element with a ceramic heater and a method for manufacturing it
    6.
    发明授权
    Oxygen sensor element with a ceramic heater and a method for manufacturing it 失效
    具有陶瓷加热器的氧传感器元件及其制造方法

    公开(公告)号：US4540479A

    公开(公告)日：1985-09-10

    申请号：US431366

    申请日：1982-09-30

    申请人： Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani

    发明人： Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani

    IPC分类号： G01N27/409 ,  G01N27/406 ,  G01N27/407 ,  G01N27/416 ,  G01N27/46

    CPC分类号： G01N27/4077 ,  G01N27/4067

    摘要： An oxygen sensor element with a ceramic heater, having a cylindrical element body formed of an oxygen ion permeable solid electrolyte with one end closed, inner and outer electrodes formed on the inner and outer surfaces of the element body, and an electrode protective layer covering at least one of the inner and outer electrodes, the ceramic heater including a bar-like ceramic core member, a ceramic covering layer which covers the outer surface of the ceramic core member and a heating member disposed in the interface between the core member and the covering layer.

    摘要翻译： 一种具有陶瓷加热器的氧传感器元件，具有由一端闭合的氧离子可渗透固体电解质形成的圆柱形元件体，形成在元件体的内表面和外表面上的内电极和外电极，以及覆盖在电极保护层 内电极和外电极中的至少一个，陶瓷加热器包括棒状陶瓷芯构件，覆盖陶瓷芯构件的外表面的陶瓷覆盖层和设置在芯构件和覆盖物之间的界面中的加热构件 层。

    Lean sensor
    7.
    发明授权
    Lean sensor 失效
    精益传感器

    公开(公告)号：US4395319A

    公开(公告)日：1983-07-26

    申请号：US377017

    申请日：1982-05-11

    申请人： Yoshio Torisu ,  Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani

    发明人： Yoshio Torisu ,  Shigenori Sakurai ,  Takashi Kamo ,  Toshinobu Furutani

    IPC分类号： G01N27/41 ,  F02D35/00 ,  F02D41/14 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/416 ,  G01N27/58

    CPC分类号： G01N27/4071

    摘要： A lean sensor for sensing oxygen concentration in exhaust emissions, including a sensor element consisting of a tabular solid electrolyte having opposed sides provided with electrodes with at least one surface thereof coated with a porous coating layer, an element fixing plate having an element fitting hole to which the element is fitted, and a pair of heat-resistant insulating support plates having opposing windows and clamping therebetween the element fixing plate together with the sensor element disposed in the windows. In this way, it is possible precisely to locate the element in relation to the plate and to improve the bonding strength and reliability while reducing the size of the sensor as a whole.

    摘要翻译： 一种用于感测废气排放物中的氧浓度的稀薄传感器，包括由片状固体电解质组成的传感器元件，所述传感器元件具有相对的侧面，所述相对侧面设置有至少一个表面涂覆有多孔涂层的电极，元件固定板具有元件装配孔 以及一对耐热绝缘支撑板，其具有相对的窗口，并将元件固定板与布置在窗户中的传感器元件一起夹在其间。 以这种方式，可以精确地将元件相对于板定位，并且在减小传感器整体尺寸的同时提高接合强度和可靠性。