Seal for a sensor element of a gas sensor
    11.
    发明授权
    Seal for a sensor element of a gas sensor 失效
    气体传感器传感器元件的密封

    公开(公告)号:US5846391A

    公开(公告)日:1998-12-08

    申请号:US836425

    申请日:1997-04-29

    IPC分类号: G01N27/409 G01N27/407

    CPC分类号: G01N27/4078

    摘要: A seal for a sensor element for a gas sensor for determining the oxygen content in a gas to be measured including exhaust gases of internal combustion engines, the seal including a metallic housing having defined therein a longitudinal bore; a sensor element inserted into the longitudinal bore; and a sealing arrangement provided in the longitudinal bore, surrounding at least a portion of the sensor element, and comprised of at least one seal element comprised of steatite and an additional seal element comprised of boron nitride arranged in contact with one another and in a stack having a side near the gas to be measured so that, when there is one seal element comprised of steatite, the one seal element comprised of steatite is positioned on the side of the stack near the gas to be measured, and so that, when there are two seal elements comprised of steatite, the additional seal element is positioned between the two seal elements comprised of steatite, wherein the at least one seal element comprised of steatite and the additional seal element comprised of boron nitride are inserted into the longitudinal bore of the housing as deformable rings and are pressed-in therein, and wherein, during the pressing-in, the deformable rings are deformed in such a way that the at least one seal element comprised of steatite and the additional seal element comprised of boron nitride are pushed against the sensor element and the housing.

    摘要翻译: PCT No.PCT / DE96 / 00567 Sec。 371日期1997年04月29日 102(e)日期1997年4月29日PCT 1996年3月21日PCT公布。 公开号WO97 / 08542 日期1997年3月6日用于气体传感器的传感器元件的密封件,用于确定包括内燃机废气的待测气体中的氧含量,所述密封件包括金属壳体,其中限定有纵向孔; 插入纵向孔中的传感器元件; 以及设置在所述纵向孔中的密封装置,围绕所述传感器元件的至少一部分,并且包括至少一个由滑石组成的密封元件和由氮化硼组成的另外的密封元件,所述氮化硼彼此接触并且在堆叠 具有靠近要测量的气体的一侧,使得当存在由滑石组成的一个密封元件时,由滑石组成的一个密封元件位于靠近待测量气体的堆叠侧,并且当那里 是由滑石组成的两个密封元件,附加的密封元件位于由滑石组成的两个密封元件之间,其中由滑石组成的至少一个密封元件和由氮化硼组成的另外的密封元件被插入到 壳体作为可变形环并被压入其中,并且其中,在压入期间,可变形环以这样的方式变形,使得至少一个 由滑石组成的气体元件和由氮化硼组成的另外的密封元件被推靠在传感器元件和壳体上。

    Seal for a sensor element of a gas sensor
    12.
    发明授权
    Seal for a sensor element of a gas sensor 失效
    气体传感器传感器元件的密封

    公开(公告)号:US5795454A

    公开(公告)日:1998-08-18

    申请号:US569074

    申请日:1995-12-04

    摘要: A seal for a sensor element of a gas sensor for determining the oxygen content in gases including exhaust gases of an internal combustion engine, which seal seals the sensor element in a longitudinal bore of a housing, the seal including a sealing stack which is positioned within the longitudinal bore of the housing and around the sensor element in use and which is comprised of two sealing bodies and an additional seal positioned between the two sealing bodies. The two sealing bodies are comprised of a pre-sintered ceramic material. The additional seal is comprised of a pre-pressed powder material and has a porosity which is lower than that of the two sealing bodies. The two sealing bodies and the additional seal are compressed together within the longitudinal bore in use, whereby at least the additional seal is deformed so that the sensor element is sealed in a gap-free manner within the longitudinal bore. The pre-pressed powder material of the additional seal may consist essentially of a ductile metal, which may be one of nickel or copper, or graphite which may be fiber-reinforced.

    摘要翻译: PCT No.PCT / DE94 / 00537 Sec。 371 1995年12月4日第 102(e)日期1995年12月4日PCT 1994年5月11日PCT公布。 公开号WO94 / 29710 日期1994年12月22日用于确定包括内燃机的废气在内的气体中的氧含量的气体传感器的传感器元件的密封件,该密封件将传感器元件密封在壳体的纵向孔中,所述密封件包括密封件 堆叠,其位于壳体的纵向孔内并且在使用中围绕传感器元件,并且由两个密封体和位于两个密封体之间的附加密封件组成。 两个密封体由预烧结的陶瓷材料组成。 附加密封件由预压粉末材料组成,并且具有低于两个密封体的孔隙率。 两个密封体和附加密封件在使用中在纵向孔内压缩在一起,由此至少附加的密封件变形,使得传感器元件以无间隙的方式密封在纵向孔内。 附加密封件的预压粉末材料可以由可以是镍或铜之一的延性金属或可以是纤维增强的石墨组成。

    Cable bushing for connecting at least one cable of a gas sensor
    13.
    发明授权
    Cable bushing for connecting at least one cable of a gas sensor 失效
    用于连接气体传感器的至少一根电缆的电缆套管

    公开(公告)号:US6150607A

    公开(公告)日:2000-11-21

    申请号:US109436

    申请日:1998-07-02

    摘要: An arrangement for sealing a cable bushing for at least one connecting cable, and in particular for a connecting cable of a sensor element of a gas sensor. On the terminal side, the sensor element is arranged in a metallic housing which has a tubular opening, in which a sealing arrangement is disposed, through which the connecting cable is conducted. The sealing arrangement is fixedly surrounded by the housing and has an elastically deformable sealing element and a spring element acting in the direction of the leading-through of the connecting cable, the sealing element being elastically deformed by the spring energy of the spring element.

    摘要翻译: 用于密封用于至少一个连接电缆的电缆套管的装置,特别是用于气体传感器的传感器元件的连接电缆。 在终端侧,传感器元件布置在具有管状开口的金属壳体中,其中设置有密封装置,连接电缆穿过该开口。 密封装置被壳体固定地围绕,并且具有可弹性变形的密封元件和沿着连接电缆的引导方向作用的弹簧元件,密封元件由弹簧元件的弹簧能量弹性变形。

    Electro-chemical measuring sensor with a potential-free sensor element
and method for producing it
    14.
    发明授权
    Electro-chemical measuring sensor with a potential-free sensor element and method for producing it 失效
    具有无电位传感器元件的电化学测量传感器及其制造方法

    公开(公告)号:US5670032A

    公开(公告)日:1997-09-23

    申请号:US592381

    申请日:1996-01-25

    CPC分类号: G01N27/407 G01N27/4078

    摘要: An electro-chemical measuring sensor (10) for determining the oxygen content of gases, in particular for determining the oxygen content in exhaust gases of internal combustion engines, with a potential-free disposed sensor element (14). The sensor element (14) has an oxygen-ion-conducting solid electrolyte body (23), preferably in the shape of a pipe or tube closed at one end, which has an exterior electrode (25) disposed on the exterior surface with a strip conductor (27) on the side toward the contact and also extending on the exterior surface, and which is inserted by means of a sealing ring (20) in a metal housing (11). The sensor element (14) has an electrically insulating layer (21) at least in the area of the sealing ring (20), which covers at least the strip conductor (27) in the direction toward the housing (11). The insulating layer (21) is formed from a mixture of a crystalline, non-metallic material and a glass-forming material. In the course of production the insulating layer (21) is subjected to a thermal treatment above the melting temperature of the glass-forming material, in the course of which the insulating layer (21) forms a glaze filled with the crystalline, non-metallic material.

    摘要翻译: PCT No.PCT / DE94 / 00791 Sec。 371日期:1996年1月25日 102(e)日期1996年1月25日PCT 1994年7月9日PCT公布。 公开号WO95 / 04273 日期1995年2月9日,一种用于确定气体氧含量的电化学测量传感器(10),特别是用于确定内燃机排气中氧含量的电化学测量传感器(10)。 传感器元件(14)具有氧离子传导固体电解质体(23),优选地为在一端封闭的管或管的形状,其具有设置在外表面上的外部电极(25) 导体(27),并且还在外表面上延伸,并且通过密封环(20)插入到金属外壳(11)中。 传感器元件(14)至少在密封环(20)的区域中具有电绝缘层(21),其至少在朝向壳体(11)的方向上覆盖带状导体(27)。 绝缘层(21)由结晶,非金属材料和玻璃形成材料的混合物形成。 在制造过程中,将绝缘层(21)进行高于玻璃形成材料的熔化温度的热处理,其中绝缘层(21)形成填充有结晶非金属的釉料 材料。

    Electrochemical measuring probe
    15.
    发明授权
    Electrochemical measuring probe 失效
    电化学测量探头

    公开(公告)号:US5486279A

    公开(公告)日:1996-01-23

    申请号:US227568

    申请日:1994-04-14

    IPC分类号: G01N27/407

    CPC分类号: G01N27/4075 G01N27/4077

    摘要: An electrochemical measuring probe for determining the oxygen content of gases, in particular of exhaust gases of internal combustion engines, whose measuring probe body consists essentially of a solid electrolyte, for example stabilised ZrO.sub.2 and whose electrode exposed to the gas to be measured is a cermet electrode which is coated with a finely porous ion-conducting covering layer composed of an ion-conducting supporting matrix material having no sintering activity of the type standard for cermet electrodes the covering layer is covered by a porous protective layer. The ion-conducting porous covering layer appreciably increases the activity of the cermet electrode.

    摘要翻译: 用于确定气体,特别是内燃机废气的氧含量的电化学测量探针,其测量探针主体基本上由固体电解质组成,例如稳定的ZrO 2,并且其暴露于待测气体的电极是金属陶瓷 涂覆有不含金属陶瓷电极类型标准物的烧结活性的离子传导性支撑基体材料的细孔离子传导性覆盖层的电极覆盖层被多孔保护层覆盖。 离子导电多孔覆盖层显着提高了金属陶瓷电极的活性。

    Exhaust gas sensor and method of producing the same
    16.
    发明授权
    Exhaust gas sensor and method of producing the same 失效
    废气传感器及其制造方法

    公开(公告)号:US5423973A

    公开(公告)日:1995-06-13

    申请号:US211083

    申请日:1994-06-20

    CPC分类号: G01N27/4075

    摘要: An exhaust gas sensor which is exposed to exhaust gas, includes a measuring electrode; and a porous ceramic coating provided on the measuring electrode and comprised of at least two layers, a first porous ceramic layer which is provided on the measuring electrode and at least a second porous ceramic layer which is provided on the first porous ceramic layer and which is directly exposed to the exhaust gas, wherein the first porous ceramic layer contains getter substances for removal of substances that are harmful to the measuring electrode, and wherein the second porous ceramic layer is provided with one of a diffusion resistance or a catalytic effect relative to exhaust gas constituents such that, at the boundary of the first and second porous ceramic layers, a gas composition is present in use which is comprised of one of oxidizable or reducible gas constituents and which sets a control position for the exhaust gas sensor.

    摘要翻译: PCT No.PCT / DE92 / 00714 Sec。 371日期:1994年6月20日 102(e)日期1994年6月20日PCT提交1992年8月27日PCT公布。 公开号WO93 / 06472 日本1997年4月1日。一种暴露于废气的排气传感器,包括测量电极; 以及设置在所述测量电极上并且包括至少两层的多孔陶瓷涂层,设置在所述测量电极上的第一多孔陶瓷层和设置在所述第一多孔陶瓷层上的至少第二多孔陶瓷层, 直接暴露于废气中,其中第一多孔陶瓷层含有用于除去对测量电极有害的物质的吸气剂物质,并且其中第二多孔陶瓷层具有相对于排气的扩散阻力或催化作用之一 气体成分,使得在第一和第二多孔陶瓷层的边界处,存在使用中的气体组合物,其由可氧化或可还原的气体成分之一组成,并且设置用于排气传感器的控制位置。

    Sealing system for a gas sensor and a method for manufacturing the sealing system
    18.
    发明授权
    Sealing system for a gas sensor and a method for manufacturing the sealing system 失效
    用于气体传感器的密封系统和密封系统的制造方法

    公开(公告)号:US06758082B2

    公开(公告)日:2004-07-06

    申请号:US10143048

    申请日:2002-05-10

    IPC分类号: G01N700

    CPC分类号: G01N27/4077 Y10T29/49002

    摘要: A gas sensor includes a sensor element for determining at least one physical quantity of a gas, e.g., for determining the concentration of a gas component in an exhaust gas of an internal combustion engine or the temperature of the exhaust gas. The sensor element is fixed in position by the sealing system in a housing of the gas sensor. The sealing system includes at least one sealing element, which includes a mixture of a ceramic material and a glass. The hemisphere temperature of the glass is above 750° Celsius.

    摘要翻译: 气体传感器包括用于确定气体的至少一个物理量的传感器元件,例如用于确定内燃机的排气中的气体成分的浓度或废气的温度。 传感器元件通过密封系统固定在气体传感器的外壳中。 密封系统包括至少一个密封元件,其包括陶瓷材料和玻璃的混合物。 玻璃的半球温度高于750摄氏度。

    Heating element for lambda sensors
    19.
    发明授权
    Heating element for lambda sensors 失效
    用于λ传感器的加热元件

    公开(公告)号:US6153861A

    公开(公告)日:2000-11-28

    申请号:US362934

    申请日:1999-07-28

    申请人: Helmut Weyl

    发明人: Helmut Weyl

    CPC分类号: G01N27/4067

    摘要: A heating element, preferably for oblong plate-shaped sensors for measuring oxygen concentration in internal combustion engine exhaust gas, has a conductive heating strip at one end of the heating element and electrical conductors which are connected electrically to the conductive heating strip and which supply the heating current and provide connection to the other end of the heating element. The positive temperature coefficient of the resistor material of the conductive heating strip is lower than the positive temperature coefficient of the material of at least one section of the conductors.

    摘要翻译: 优选地,用于测量内燃机排气中的氧浓度的长方形板状传感器的加热元件在加热元件的一端处具有导电加热带,并且电导体与电导体加热带电连接, 加热电流并提供到加热元件的另一端的连接。 导电加热带的电阻材料的正温度系数低于导体的至少一个部分的材料的正温度系数。

    Measuring sensor of oxygen content of hot gas with specially shaped
protective tube
    20.
    发明授权
    Measuring sensor of oxygen content of hot gas with specially shaped protective tube 失效
    测量具有特殊形状保护管的热气含氧量的传感器

    公开(公告)号:US5073247A

    公开(公告)日:1991-12-17

    申请号:US651767

    申请日:1991-02-07

    申请人: Helmut Weyl

    发明人: Helmut Weyl

    CPC分类号: G01N27/4077

    摘要: A protective tube of metal resistant to corrosion from hot gas surrounds and is spaced from a closed-end ceramic sensor body within which is an electrical heater. The protective tube extends beyond the end of the sensor body and has an annular groove at its open end, which bulges into the space enclosed by the tube and the outer end of which provides a flange perpendicular to the axis of the tube a fine metal screen may be provided across the open end of the tube for incepting droplets of water that may sometimes be present in the gas to be measured. The open end of the protective tube may be only slightly constricted by the groove or, in another embodiment, it may taper down in a rounded fashion to a narrower opening.

    摘要翻译: 耐热腐蚀性金属的保护管围绕着与封闭式陶瓷传感器主体间隔开的电器加热器。 保护管延伸超出传感器主体的端部,并且在其开口端具有环形槽,其在管中封闭的空间中凸出,并且其外端提供垂直于管轴的凸缘,金属细丝屏 可以设置在管的开口端,以接收有时可能存在于待测量气体中的水滴。 保护管的开口端可以仅由凹槽稍微收缩,或者在另一个实施例中,其可以以圆形方式逐渐变细到较窄的开口。