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    • 2. 发明公开
    • Glow plugs
    • 电热塞
    • EP0229677A3
    • 1987-10-21
    • EP87101029
    • 1984-03-21
    • WELLMAN THERMAL SYSTEMS CORPORATION
    • Walton, Frank Taylor
    • F23Q07/00
    • F23Q7/001Y10T29/49087
    • The disclosure relates to a glow plug in which an outer metal housing (12) has a wall defining an internal axially extending bore (13), and a tubular heater having an external tubular sheath (16) has a heated end (16a) extending outwardly of the housing and an opposite internal end (16b) with the housing bore. An electrical heating element is positioned within the heater sheath and has a conductor (18) extending outwardly from the other end of the sheath. Electrical insulating material fills the space between the heating element and the sheath (16), and an insulative compressible member (50) is compressed between the sheath (16) and the conductor (18) and the housing wall (12) with an interference fit to prevent the flow of gas into the interior of the tubular heater.
    • 本发明涉及一种电热塞,其中外部金属外壳(12)具有限定内部轴向延伸孔(13)的壁,并且具有外部管状护套(16)的管状加热器具有向外延伸的加热端(16a) 以及与壳体孔相对的内端(16b)。 电加热元件位于加热器护套内并具有从护套的另一端向外延伸的导体(18)。 电绝缘材料填充加热元件和护套(16)之间的空间,并且绝缘可压缩构件(50)通过过盈配合在护套(16)与导体(18)和壳体壁(12)之间被压缩 以防止气体流入管式加热器的内部。