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    • 4. 发明授权
    • GLÜHSTIFTKERZE
    • EP1295067B1
    • 2004-11-24
    • EP01943162.6
    • 2001-05-26
    • ROBERT BOSCH GMBH
    • MONDAL, PiaENGEL, ChristineREISSNER, AndreasDRESSLER, WolfgangBOEDER, HorstKERN, ChristophSCHOTT, SteffenHOFFMANN, Ruth
    • F23Q7/00
    • F23Q7/001
    • The invention relates to a sheathed element glow plug for arrangement in a combustion chamber. A rod-shaped heating element is located in a concentric bore of the housing. Said heating element has a first current-carrying layer (11), a second current-carrying layer (12) and an insulation layer (15), said insulation layer (15) separating the first current-carrying layer (11) from the second current-carrying layer (12). The first current-carrying layer (11) and the second current-carrying layer (12) are connected by a conducting layer segment (13) at the combustion chamber-side end of the heating element. The first current-carrying layer (11) and the second current-carrying layer (12) are of different lengths, the first current-carrying layer (11) having a larger cross-section in relation to its length otherwise in a first section (21) at the combustion chamber-side end of the heating element and the second current-carrying layer (12) not projecting into this first section (21).
    • 本发明涉及一种用于布置在燃烧室中的铠装元件电热塞。 棒状加热元件位于壳体的同心孔中。 所述加热元件具有第一电流承载层(11),第二电流承载层(12)和绝缘层(15),所述绝缘层(15)将第一电流承载层(11)与第二电流承载层 载流层(12)。 第一载流层(11)和第二载流层(12)通过加热元件的燃烧室侧端部处的导电层部分(13)连接。 第一载流层(11)和第二载流层(12)具有不同的长度,第一载流层(11)相对于其长度具有较大的横截面,否则在第一部分 21)在加热元件的燃烧室侧的端部和第二电流携载层(12)不突出到第一部分(21)中。
    • 10. 发明授权
    • VERFAHREN ZUM PRESSEN ZYLINDRISCHER VERBUNDKÖRPER
    • METHOD FOR PRESS圆筒复合体
    • EP1115541B1
    • 2003-10-01
    • EP00956076.4
    • 2000-07-08
    • ROBERT BOSCH GMBH
    • AICHELE, WilfriedDRESSLER, Wolfgang
    • B28B3/02B30B11/02B30B15/30
    • B28B3/00B28B1/008B28B3/025
    • The invention relates to a method for producing ceramic composite bodies, in particular, cylindrical ceramic bodies for sheathed-element glow plugs in which a number of shaping sleeves (10), which accommodate piece parts preformed by cold pressing, are inserted into corresponding borings (20) of a vertically standing supporting plate (27) that is heated via additional borings (16) with the aid of heating cartridges or a heat transfer fluid. The vertically standing supporting plate with the shaping sleeves (10) is then clamped between two press plates (17) of a press, and the piece parts located inside are subsequently pressed by press pins (13) which, on both sides, pass through the press plates and into the shaping sleeves (10). Upon completion of the necessary pressure keeping period, the pressed material, after retracting the press pins and opening the press, can be hardened in a non-pressurized manner in the shaping sleeves (10) located in the extended supporting plate (27) that is subjected to a continual heating. Finally, the pressed material can be removed from the shaping sleeves (10) after the same have been cooled by air, and can be ground into the final shape using a grinding machine.