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    ZÜNDKERZE FÜR EINE BRENNKRAFTMASCHINE
    3.
    发明公开
    ZÜNDKERZE FÜR EINE BRENNKRAFTMASCHINE 审中-公开
    火花塞的内燃发动机

    公开(公告)号：EP1269590A1

    公开(公告)日：2003-01-02

    申请号：EP01911425.5

    申请日：2001-02-06

    申请人： ROBERT BOSCH GMBH

    发明人： MENKEN, Lars ,  REINSCH, Bernd ,  HRASTNIK, Klaus ,  TRACHTE, Dietrich ,  CZERWINSKI, Klaus

    IPC分类号： H01T13/39

    CPC分类号： H01T13/39

    摘要： The invention relates to a spark plug for an internal combustion engine, comprising at least two electrodes (9, 11). One of said at least two electrodes is at least one center electrode (11) and another electrode of the at least two electrodes is at least one shell electrode (9), a spark gap (13) being formed between the at least one shell electrode (9) and the at least one center electrode (11). Each of the at least two electrodes (9, 11) comprises an electrode base (93, 113). At least one electrode has a highly erosion-resistant section (95, 115) that configures at least a part of the front face of the electrode (97, 117) facing the spark gap. Said highly erosion-resistant section (95, 115) consists of an alloy that contains at least the elements iridium and nickel.

    ZÜNDKERZE FÜR EINE BRENNKRAFTMASCHINE
    5.
    发明公开
    ZÜNDKERZE FÜR EINE BRENNKRAFTMASCHINE 有权
    ZÜNDKERZEFÜREINE BRENNKRAFTMASCHINE

    公开(公告)号：EP1116308A1

    公开(公告)日：2001-07-18

    申请号：EP00960308.5

    申请日：2000-07-22

    申请人： ROBERT BOSCH GMBH

    发明人： MENKEN, Lars ,  REINSCH, Bernd

    IPC分类号： H01T13/39

    CPC分类号： H01T13/39

    摘要： The invention relates to a spark plug with a ceramic insulator that contains at its combustion chamber end a noble metal center electrode in a cylindrical center opening. In the direction of the end of the insulator that is remote from the combustion chamber a contact pin is located behind the noble metal center electrode in the cylindrical opening. The surface of the contact pin is provided with a layer that consists of one or more metal aluminides in order to reduce its corrosion.

    摘要翻译： 具有陶瓷绝缘体的火花塞技术领域本发明涉及一种具有陶瓷绝缘体的火花塞，其在燃烧室端部处包含在圆柱形中心开口中的贵金属中心电极 在绝缘体的远离燃烧室的端部的方向上，接触销位于圆柱形开口中的贵金属中心电极的后面。 接触销的表面设有由一种或多种金属铝化物组成的层以减少其腐蚀。

    ELEKTRODE FÜR EINE ZÜNDKERZE
    7.
    发明公开
    ELEKTRODE FÜR EINE ZÜNDKERZE 审中-公开
    电极作为SPARK

    公开(公告)号：EP1875570A1

    公开(公告)日：2008-01-09

    申请号：EP06725175.1

    申请日：2006-03-20

    申请人： ROBERT BOSCH GMBH

    发明人： MENKEN, Lars ,  CZERWINSKI, Klaus ,  KAISER, Thomas ,  FLAIG, Alexander ,  BOEHM, Jochen ,  RAGER, Jochen

    IPC分类号： H01T13/39

    CPC分类号： H01T13/39

    摘要： The invention relates to an electrode (8, 9) for a spark plug, said electrode being formed from a base material (11) and at least one additive material (12) which is distributed in the base material (11) in a dispersed manner, is incorporated into the base material (11), and is a metal oxide, and characterised by a negative formation enthalpy which is higher than 800 kJ/mol O2. The base material (11) is an Au base material or an Rh base material or pure Au or Rh, and the additive material part (12) amounts to between 5 vol. % and 50 vol. %. Alternatively, Pt base materials or pure Pt are provided as the base material (11), and the additive material part (12) amounts to between 21 vol. % and 50 vol. % for average particle diameters (D50) of the additive material (12) between 5 µm and 20 µm, or the additive material (12) consists of at least one metal oxide from the group of rare-earth metal oxides and/or at least one metal oxide from the group containing Al2O3, Y2O3, Sc2O3, CaO, SrO, BaO, and/or at least one mixed oxide, such as spinel, consisting of at least one alkaline earth metal oxide, a rare-earth metal oxide, Al2O3, Y2O3 and/or Sc2O3, the additive material part (12) amounting to between 5 vol. % and 50 vol. %.