| 摘要 |
PURPOSE: A heating element of a glow plug is provided to improve air tightness by forming a sealant to line-contact with an inner wall of a heating tube along the longitudinal direction of an inner pole. CONSTITUTION: A heating coil(120) is inserted into a heating tube(110). A part of an inner pole(130) is inserted into the heating tube and is connected to the heating coil. The inner pole includes a step unit(130a) in one side of the inserted part of the heating tube. A sealant(140) is formed to latch by the step unit of the inner pole. The sealant is interposed between the inner pole and the heating tube. |
