Oxygen concentration sensor
    21.
    发明授权
    Oxygen concentration sensor 失效
    氧浓度传感器

    公开(公告)号:US5421984A

    公开(公告)日:1995-06-06

    申请号:US184141

    申请日:1994-01-21

    CPC分类号: G01N27/4071 G01N27/4075

    摘要: This invention aims at providing an oxygen concentration sensor having electrodes which are excellent in heat resistance and durability and maintain quick response. An electrode 26 on an exhaust side is formed on one of the side surfaces of a solid electrolyte 25, and an electrode 24 on an atmosphere side is formed on the other side surface. The electrode 26 on the exhaust side has a composite structure comprising a skeletal electrode 26a and a reaction electrode 26a. The skeletal electrode 26a has a film thickness of 5 to 20 .mu.m and a porosity of less than 10%, and is a heat-resistant thick film for primarily forming a skeletal region. In contrast, the reaction electrode 26b has a film thickness of 0.5 to 2 .mu.m and a porosity of 10 to 50%, and is a high response thin film for primarily forming a reaction region.

    摘要翻译: 本发明的目的在于提供一种具有耐热性和耐久性优异且保持快速反应的电极的氧浓度传感器。 在固体电解质25的一个侧面上形成排气侧的电极26,在另一个侧面上形成有气氛侧的电极24。 排气侧的电极26具有包括骨架电极26a和反应电极26a的复合结构体。 骨架电极26a的膜厚为5〜20μm,孔隙率小于10%,是用于主要形成骨架区域的耐热厚膜。 相反,反应电极26b的膜厚为0.5〜2μm,孔隙率为10〜50%,是用于主要形成反应区域的高反应性薄膜。

    Oxygen sensor element
    22.
    发明授权
    Oxygen sensor element 失效
    氧传感元件

    公开(公告)号:US5948225A

    公开(公告)日:1999-09-07

    申请号:US861226

    申请日:1997-05-21

    IPC分类号: G01N27/409 G01N27/407

    CPC分类号: G01N27/4075

    摘要: An oxygen sensor element includes a solid electrolyte having cavities on a surface thereof and an electrode formed on the surface of the solid electrolyte. In a method of producing the oxygen sensor element, a solution containing a noble metal compound for nucleus formation is first applied to an electrode forming portion of the solid electrolyte to form a coating film. Then, the coating film is heat-treated to form a nucleus forming portion where noble metal nuclei are deposited. Subsequently, metal plating is applied to the nucleus forming portion to form a plating film deeply entering the cavities. Thereafter, the plating film is burned to form the electrode deeply entering the cavities.

    摘要翻译: 氧传感器元件包括在其表面上具有空腔的固体电解质和形成在固体电解质表面上的电极。 在制造氧传感器元件的方法中,首先将含有形成核的贵金属化合物的溶液施加到固体电解质的电极形成部分以形成涂膜。 然后,对涂膜进行热处理,形成析出贵金属核的成核部。 随后,对核形成部分施加金属电镀以形成深入到空腔中的镀膜。 此后,电镀膜被燃烧以形成深入空腔的电极。

    Oxygen sensor
    26.
    发明授权
    Oxygen sensor 失效
    氧传感器

    公开(公告)号:US4220516A

    公开(公告)日:1980-09-02

    申请号:US1354

    申请日:1979-01-04

    CPC分类号: G01N27/4075

    摘要: An oxygen sensor having an oxygen-ion-conductive element made of a metal oxide with an outer electrode composed of three layers, one of which is the thinnest, second of which is the intermediate in thickness and the third of which is the thickest. This oxygen sensor maintains quick response characteristics over a long period of time.

    摘要翻译: 一种氧传感器,其具有由金属氧化物制成的氧离子传导元件,外部电极由三层组成,其中一层最薄,其中第二层为中间层,第三层最厚。 该氧传感器在长时间内保持快速响应特性。

    Air-fuel ratio sensor
    28.
    发明授权
    Air-fuel ratio sensor 失效
    空燃比传感器

    公开(公告)号:US5935399A

    公开(公告)日:1999-08-10

    申请号:US792737

    申请日:1997-01-31

    IPC分类号: G01N27/407

    CPC分类号: G01N27/4075

    摘要: An air-fuel ratio sensing element comprises a cup-shaped solid electrolyte with one end opened and the other end closed, an external electrode provided on an outer wall surface of the solid electrolyte so as to be exposed to measured gas, and an internal electrode provided on an inner wall surface of the solid electrolyte in a confronting relationship to the external electrode. A first insulating layer, made of a gas-permeable and nonconductive porous material, is provided on the external electrode at least in a region used for detecting of an air-fuel ratio. A second insulating layer is provided outside the first insulating layer and, a heater layer as provided between the first insulating layer and the second insulating layer.

    摘要翻译: 空燃比检测元件包括一端敞开而另一端闭合的杯形固体电解质,设置在固体电解质的外壁表面上以暴露于测量气体的外部电极,以及内部电极 以与外部电极相对的关系设置在固体电解质的内壁表面上。 至少在用于检测空燃比的区域中,在外部电极上设置由透气且不导电的多孔材料制成的第一绝缘层。 第二绝缘层设置在第一绝缘层的外侧,以及设置在第一绝缘层和第二绝缘层之间的加热器层。

    Air-fuel ratio detecting device
    29.
    发明授权
    Air-fuel ratio detecting device 失效
    空燃比检测装置

    公开(公告)号:US5676811A

    公开(公告)日:1997-10-14

    申请号:US789709

    申请日:1997-01-27

    IPC分类号: G01N27/419 G01N27/26

    CPC分类号: G01N27/419

    摘要: An air-fuel ratio detecting element is composed of an oxygen pump portion and an oxygen sensor portion which are provided on a single solid electrolyte sheet, a heating element, and a spacer. The oxygen pump portion is composed of a pair first of electrodes provided on opposite sides of the solid electrolyte sheet, and a communication hole which is formed through the solid electrolyte sheet and the electrodes. Electrodes are disposed on the solid electrolyte sheet on the same side as the second electrode, whereby the oxygen sensor portion is formed. The spacer has an opening and a slit-like opening. The heating element 4, the spacer, and the solid electrolyte sheet are stacked from bottom to top, and then the stacked assembly is baked. In this case, they are stacked such that the opening faces the first electrodes and the second electrode. By disposing the oxygen pump portion and the oxygen sensor portion on the same solid electrolyte sheet, structure can be made simpler compared with a conventional air-fuel ratio detecting element in which a solid electrolyte sheet is used for each of an oxygen pump portion and an oxygen sensor portion.

    摘要翻译: 空燃比检测元件由设置在单个固体电解质片,加热元件和间隔件上的氧泵部分和氧传感器部分组成。 氧泵部由设置在固体电解质片的相对侧上的一对电极和通过固体电解质片和电极形成的连通孔构成。 电极与第二电极位于同一侧的固体电解质片上,形成氧传感器部。 间隔件具有开口和狭缝状开口。 从底部到顶部堆叠加热元件4,间隔件和固体电解质片,然后烘烤堆叠的组件。 在这种情况下,它们堆叠成使得开口面向第一电极和第二电极。 通过将氧泵部和氧传感器部配置在相同的固体电解质片上,与以往的空氧燃料比检测元件相比,可以使结构更简单,其中使用固体电解质片作为氧泵部和 氧传感器部分。

    Oxygen sensor
    30.
    发明授权
    Oxygen sensor 失效
    氧传感器

    公开(公告)号:US5164068A

    公开(公告)日:1992-11-17

    申请号:US667399

    申请日:1991-05-15

    IPC分类号: G01N27/406

    CPC分类号: G01N27/4067

    摘要: The present invention relates to an oxygen sensor, in which in order to be strong against vibration and shocks as well as to make rapid heating possible and to be capable of rapidly performing correct detection, the oxygen sensor provided is composed of a sensor element having a body portion and a thin portion which is thinner than the body portion, a detecting element is formed at the thin portion for measuring oxygen concentration, and an exothermic element is provided for heating the detecting element.

    摘要翻译: PCT No.PCT / JP90 / 00983 Sec。 371日期1991年5月15日 102(e)日期1991年5月15日PCT提交1990年8月2日PCT公布。 公开号WO91 / 02245 日本1991年2月21日。氧传感器技术领域本发明涉及一种氧传感器,其中为了抗振动和冲击强,并且能够快速加热并且能够快速执行正确的检测,所提供的氧传感器 由具有主体部分和比主体部分薄的薄部分的传感器元件组成,在用于测量氧浓度的薄部分处形成检测元件,并且设置用于加热检测元件的放热元件。