SENSORELEMENT SOWIE VERFAHREN UND MITTEL ZU DESSEN HERSTELLUNG

    公开(公告)号:EP1963833A1

    公开(公告)日:2008-09-03

    申请号:EP06819823.3

    申请日:2006-11-29

    申请人: ROBERT BOSCH GMBH

    IPC分类号: G01N27/407 B01J37/02

    摘要: The invention relates to a sensor element for gas sensors for determining the gas constituents of a gas mixture, especially in exhaust gases of internal combustion engines. Said sensor element comprises at least one electrochemical measuring cell and at least one porous layer (24) that is exposed to the gas mixture. Said porous layer (24) contains palladium, platinum, ruthenium, an alkali metal and/or an alkaline earth metal, platinum being contained in the porous layer (24) in a minimum concentration of 1.5 % by weight. The invention also relates to a method and an impregnating solution for producing the sensor element.

    摘要翻译: 描述了用于气体传感器的传感器元件,用于确定气体混合物的气体组分,特别是在具有至少一个电化学测量单元和暴露于气体混合物的至少一个多孔层的内燃机的废气中。 多孔层含有钯,铂,钌,碱金属和/或碱土金属,该多孔层中的铂以1.5重量%的最小浓度包含。 %。 此外,描述了用于制造传感器元件的方法和浸渍溶液。

    FILTER ZUR ENTFERNUNG VON PARTIKELN AUS EINEM GASSTROM SOWIE VERFAHREN ZU SEINER HERSTELLUNG

    公开(公告)号:EP2032237A1

    公开(公告)日:2009-03-11

    申请号:EP07727978.4

    申请日:2007-04-11

    申请人: Robert Bosch GmbH

    IPC分类号: B01D53/94

    摘要: The invention relates to a filter for removing particles from a gas stream, in particular for removing soot particles from an exhaust gas stream of an internal combustion engine, with a filter body made of a ceramic filter substrate, wherein the filter substrate is coated. The coating contains at least one of the following substances: (a) at least one aluminum oxide selected from alpha-, gamma-, delta- and theta aluminum oxides, (b) an aluminum oxyhydrate doped with silicon dioxide, at least one oxide of a metal of the third to fifth subgroups, at least one oxide of a lanthanide including lanthanum or a mixture of one or more of these oxides, (c) silicon dioxide or high-silicon zeolite, or (d) titanium dioxide doped with at least one oxide of a metal from the third to sixth subgroups or with an oxide of a lanthanide including lanthanum, (e) a mixture of zirconium dioxide with at least one oxide of a metal from the third to fifth subgroups, at least one oxide of a lanthanide including lanthanum, or a mixture of one or more of these oxides.

    摘要翻译: 本发明涉及一种用于从气流中除去颗粒的过滤器,特别是用于从内燃机的废气流中除去煤烟颗粒的过滤器,其中过滤器主体由陶瓷过滤器基底制成,其中过滤器基底被涂覆。 该涂层含有至少一种以下物质:(a)至少一种选自α-,γ-,δ-和θ-氧化铝的氧化铝,(b)掺杂有二氧化硅的铝氧水合物,至少一种 第三至第五小组的金属,至少一种包含镧的镧系元素的氧化物或这些氧化物中的一种或多种的混合物,(c)二氧化硅或高硅沸石,或(d)至少掺杂有 一种来自第三至第六小组的金属氧化物或与镧系元素包括镧的氧化物,(e)二氧化锆与至少一种第三至第五小组金属氧化物的混合物,至少一种 包括镧的镧系元素,或这些氧化物中的一种或多种的混合物。