Electrochemical measuring sensor
    31.
    发明授权
    Electrochemical measuring sensor 失效
    电化学测量传感器

    公开(公告)号:US5435901A

    公开(公告)日:1995-07-25

    申请号:US121961

    申请日:1993-09-15

    IPC分类号: G01N27/407 G01N27/409

    CPC分类号: G01N27/4078 G01N27/407

    摘要: An electrochemical measuring sensor is proposed for determining the oxygen content in exhaust gases which has a base body made of an ion-conducting solid electrolyte in the form of a tube closed at one end, an inner electrode, an outer electrode disposed on the external surface of the probe block and having a conductor track on the connection side which has a covering layer, a ceramic protective layer and a metallic sealing ring for sealing the reference space from the exhaust gas space and for making an electrical contact to the housing in which the measuring sensor is to be inserted. The electrochemical covering layer covering the conductor track is brought down on the reference side of the probe block to below the metallic sealing ring and the track is formed with uncovered lateral extensions making electrical contact with the ring. This makes it possible to significantly prolong the service life of the measuring sensor.

    摘要翻译: 提出一种电化学测量传感器,用于确定废气中的氧含量,其具有由一端封闭的管形式的离子导电固体电解质制成的基体,内电极,设置在外表面上的外电极 并且具有在连接侧上的具有覆盖层的导体轨道,陶瓷保护层和金属密封环,用于将参考空间与废气空间密封并用于与壳体电接触,其中, 测量传感器将被插入。 覆盖导体轨道的电化学覆盖层在探针块的参考侧下降到金属密封环的下方,并且轨道形成有与环形成电接触的未覆盖的侧向延伸部。 这样可以显着延长测量传感器的使用寿命。

    Process for producing a layer system for gas sensors
    32.
    发明授权
    Process for producing a layer system for gas sensors 失效
    生产气体传感器层系统的方法

    公开(公告)号:US5374390A

    公开(公告)日:1994-12-20

    申请号:US64172

    申请日:1993-05-25

    CPC分类号: G01N27/4075

    摘要: A process is proposed which serves to produce layer systems for gas sensors, the electrodes essentially being composed of a finely divided ceramic material and finely divided electron-conducting material. The process comprises adding stabilizer oxides to the electrode material in proportions above those necessary for full stabilization. As a result, a layer system having outstanding mechanical properties and high electrode load carrying capacity is obtained by a simple manufacturing process.

    摘要翻译: PCT No.PCT / DE91 / 00939 Sec。 371日期:1993年5月25日 102(e)日期1993年5月25日PCT 1991年12月3日PCT PCT。 第WO92 / 12419号公报 日期1992年7月23日。提出了一种用于生产气体传感器的层系统的工艺,电极基本上由精细分散的陶瓷材料和细分散的电子传导材料组成。 该方法包括将稳定剂氧化物以比完全稳定所必需的比例添加到电极材料中。 结果,通过简单的制造工艺获得具有突出的机械性能和高电极负载能力的层系统。

    Stable ceramic consisting of aluminum oxide
    33.
    发明授权
    Stable ceramic consisting of aluminum oxide 失效
    由氧化铝组成的稳定陶瓷

    公开(公告)号:US5030602A

    公开(公告)日:1991-07-09

    申请号:US381716

    申请日:1989-02-27

    IPC分类号: C04B35/10 C04B35/111

    CPC分类号: C04B35/111

    摘要: A ceramic consisting substantially of Al.sub.2 O.sub.3 as ceramic support, ceramic cover layer and/or ceramic supporting structure for heating conductors is described, which is electrochemically stable, which, in other words, does not decompose on application of a heating voltage, even in long-term operation at temperatures above 600.degree.. Such a ceramic exhibits a very small alkali metal content, of less than 0.2% by weight Na.sub.2 O and K.sub.2 O respectively. Particularly favorable processing, in particular pressing properties are exhibited by such a ceramic if it has 2.5 to 10% by weight of barium silicate or strontium silicate fluxes, the proportions of Na.sub.2 O, K.sub.2 O, CaO and MgO together make up less than 1% by weight, and the BaO or SrO:SiO.sub.2 molar ratio is between 2:1 and 1:12.5. Such a ceramic with a BaO:SiO.sub.2 ratio of 2.6:1 parts by weight is electrochemically stable up to approximately 1400.degree. C., and at 1300.degree. C. still exhibits a bending strength of approximately 300 N/mm.sup.2.

    摘要翻译: PCT No.PCT / DE87 / 00285 Sec。 371日期1989年2月27日 102(e)日期1989年2月27日PCT Filed 1987年6月24日PCT公布。 出版物WO88 / 01610 日期:1988年3月10日。描述了一种基本上由作为陶瓷载体的Al 2 O 3组成的陶瓷,描述了用于加热导体的陶瓷覆盖层和/或陶瓷支撑结构,其是电化学稳定的,换句话说,其不应用于 加热电压,即使在高于600度的温度下长期运行。 这种陶瓷表现出非常小的碱金属含量,分别小于0.2重量%的Na 2 O和K 2 O 3。 如果具有2.5至10重量%的硅酸钡或硅酸锶焊剂,则通过这种陶瓷表现出特别有利的加工,特别是压制性能,Na 2 O,K 2 O,CaO和MgO的比例一起构成小于1重量% ,BaO或SrO:SiO2的摩尔比为2:1〜1:12.5。 这种BaO:SiO 2比例为2.6:1重量份的陶瓷的电化学稳定性高达约1400℃,在1300℃下仍具有约300N / mm2的弯曲强度。

    Rapid-heating, high-temperature-stable spark plug for internal
combustion engines
    34.
    发明授权
    Rapid-heating, high-temperature-stable spark plug for internal combustion engines 失效
    用于内燃机的快速加热,高温稳定的火花塞

    公开(公告)号:US4539503A

    公开(公告)日:1985-09-03

    申请号:US435643

    申请日:1982-10-21

    IPC分类号: H01T13/16 H01T13/20 H01T13/14

    CPC分类号: H01T13/16 H01T13/20

    摘要: In order to obviate the necessity for design compromise of spark plugs with respect to their operating temperature, so that the ceramic insulator (18) of the spark plug will rapidly reach the temperature at which deposits thereon will inherently burn off (about 400.degree. C.-450.degree. C.) while not becoming so hot as to cause spurious glow ignition within the combustion chamber of an internal combustion (IC) engine, the end portion of the insulator is formed with a central opening (19/3) within which a metal core (24) is included which has a temperature coefficient of expansion such that, at temperatures below between 400.degree. C.-450.degree. C. it is spaced by a narrow gap (25) from the inner surface of the insulator (see FIG. 1) but, as the spark plug becomes hot, the gap 25 closes (FIG. 2), thereby providing good heat transmission from the insulator to the center electrode structure (21, 23, 24) and thereby maintaining the insulator at a temperature below that at which it might glow. Suitable materials for the center electrode are aluminum bronze, or other materials having a heat transmission characteristic of at least 90 W/mK. The insulator, preferably, has a higher-than-usual flux content so that, at low temperatures, its heat transmission characteristics are poor, to insure rapid heating to free combustion temperature of possible deposits.

    摘要翻译: 为了避免火花塞相对于其工作温度的设计损害的必要性,使得火花塞的陶瓷绝缘体(18)将快速达到其上沉积物将固有地燃烧的温度(约400℃) -450℃),同时不会变得如此热,从而在内燃(IC)发动机的燃烧室内引起假燃发光,绝缘体的端部形成有中心开口(19/3),在该中心开口 包括金属芯(24),其具有温度膨胀系数,使得在低于400℃-450℃的温度下,其间距离绝缘体的内表面的窄间隙(25)(参见图 1),但是当火花塞变热时,间隙25闭合(图2),从而提供从绝缘体到中心电极结构(21,23,24)的良好的热传递,从而将绝缘体保持在温度 低于它可能会发光。 用于中心电极的合适材料是铝青铜或具有至少90W / mK的热传递特性的其它材料。 绝缘体优选具有高于通常的焊剂含量,使得在低温下其传热特性差,以确保快速加热以释放可能的沉积物的燃烧温度。

    Boron nitride sealing element
    37.
    发明授权
    Boron nitride sealing element 失效
    氮化硼密封元件

    公开(公告)号:US06299805B1

    公开(公告)日:2001-10-09

    申请号:US09341449

    申请日:1999-07-09

    IPC分类号: C04B35583

    摘要: A sealing member is produced from form-pressed boron nitride powder, while adding an inorganic or organic binding agent. Such boron nitride powder is obtained during the machining of boron nitride blocks composed of hexagonal boron nitride. This powder can be fractionated according to particle size and the particle size desired for manufacturing the sealing member can be separated out.

    摘要翻译: 密封构件由成形氮化硼粉末制成,同时加入无机或有机结合剂。 这样的氮化硼粉末是在由六方氮化硼组成的氮化硼块的加工过程中获得的。 该粉末可以根据粒径分级,并且可以分离出用于制造密封构件所需的粒度。

    Sensor element seal for a detector
    38.
    发明授权
    Sensor element seal for a detector 失效
    检测器的传感器元件密封

    公开(公告)号:US06223583B1

    公开(公告)日:2001-05-01

    申请号:US09171687

    申请日:1999-04-19

    IPC分类号: G01N2712

    CPC分类号: G01N27/407

    摘要: A sensor for determining an oxygen content of an exhaust gas of an internal combustion engine includes a flat-plate sensing element that is inserted in a gas-tight fashion via a hybrid seal in a ceramic shaped element that is arranged in a metal housing. The seal includes a powdered sealing packing, both placed around the sensing element in a recess at one end of the ceramic shaped element and a fusible glass seal located above the powdered sealing packing. The seal achieves gas-tight and gasoline-resistant isolation or immobilization of the sensing element in the ceramic shaped element.

    摘要翻译: 用于确定内燃机的排气的氧含量的传感器包括平板传感元件,该平板感测元件通过布置在金属外壳中的陶瓷元件中的混合密封件以气密方式插入。 密封件包括粉末密封填料,两个放置在陶瓷成形元件的一端的凹部中的感测元件周围,以及位于粉末密封填料上方的可熔玻璃密封件。 该密封件可实现气密和耐汽油隔离或固定在陶瓷成形元件中的传感元件。

    Electro-chemical measuring sensor with a potential-free sensor element
and method for producing it
    39.
    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 sensor for determining the oxygen concentration in gas
mixtures
    40.
    发明授权
    Electrochemical sensor for determining the oxygen concentration in gas mixtures 失效
    用于测定气体混合物中氧浓度的电化学传感器

    公开(公告)号:US5630920A

    公开(公告)日:1997-05-20

    申请号:US545865

    申请日:1996-01-19

    CPC分类号: G01N27/4071 G01N27/4075

    摘要: An electrochemical sensor for determining the oxygen concentration in gas mixtures is proposed. The sensor has a solid electrolyte (10) with oxygen ionic conductivity, which has a measuring electrode (11) that does not catalyze establishment of equilibrium of the gas mixture and is exposed to the gas mixture. The measuring electrode (11) contains platinum and bismuth. The effect of these materials is that the free oxygen contained in the gas mixture is preferentially adsorbed, without reacting with the other gas components such as CO and HC.

    摘要翻译: PCT No.PCT / DE95 / 00253 Sec。 371日期1996年1月19日 102(e)日期1996年1月19日PCT提交1995年2月28日PCT公布。 出版物WO95 / 25276 日期1995年9月21日提出了一种用于测定气体混合物中氧浓度的电化学传感器。 传感器具有氧离子导电性的固体电解质(10),其具有不催化气体混合物平衡并暴露于气体混合物的测量电极(11)。 测量电极(11)含有铂和铋。 这些材料的作用是优先吸附气体混合物中所含的游离氧,而不与其他气体组分如CO和HC反应。