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    • 1. 发明申请
    • SHEATHED GLOW PLUG
    • WO2009079530A3
    • 2009-09-11
    • PCT/US2008087071
    • 2008-12-17
    • FEDERAL MOGUL IGNITION COHOFFMAN JOHNGORETTI SANDRORENA CAMILLOWALKER WILLIAMCINO MARCELLO
    • HOFFMAN JOHNGORETTI SANDRORENA CAMILLOWALKER WILLIAMCINO MARCELLO
    • F23Q7/22F23Q7/00
    • F23Q7/001
    • A glow plug which includes an annular metal shell, thermally conductive tubular sheath, central electrode; resistance heating element, and electrically insulating, thermally conductive powder includes a glass seal in sealing engagement with the sheath and the electrode to form a sealed cavity within the sheath. The glass seal may include silicate, borate and borosilicate glasses, and may include one or more transition metal oxides, such as oxides of chromium, cobalt, nickel, iron and copper. The glass may also include a filler, including a ceramic oxide, such as one selected from a group consisting of quartz, eucryptites, leucites, cordierites, beta-spodumene, glass-ceramics, low- expansion glass(CTE
    • 一种电热塞,其包括环形金属壳,导热管状护套,中心电极; 电阻加热元件和电绝缘导热粉末包括与护套和电极密封接合的玻璃密封件,以在护套内形成密封空腔。 玻璃密封件可以包括硅酸盐,硼酸盐和硼硅酸盐玻璃,并且可以包括一种或多种过渡金属氧化物,例如铬,钴,镍,铁和铜的氧化物。 玻璃还可以包括填料,包括陶瓷氧化物,例如选自石英,堇青石,白云石,堇青石,β-锂辉石,玻璃陶瓷,低膨胀玻璃(CTE <5ppm /℃) ,莫来石,锆石,氧化锆和氧化铝。 密封腔可容纳保护性惰性气体。 电阻加热元件可以由选自钨,钼或含钨,钼,镍,铁,钽,铌,钛,钒,锇和铬的合金的金属形成。