| 摘要 |
<p>A glow plug capable of being rapidly heated, a glow plug mounting structure, and a glow plug manufacturing method, the glow plug (1) comprising a tubular sheath tube (3) having a closed tip (3S) and an open base (3K), a tubular metal bar (5) covering a base (3K) side, a heating coil (7) disposed in the sheath tube (3) along the axis thereof and having a coil tip part (7S) connected to the tip (3S) of the sheath tube (3), and magnesia powder (11) filled in the sheath tube (3), wherein the tip side portion (7H) of the heating coil (7) located on the tip side of the outpost (9T) of an energization terminal shaft (9) has a coil length of 15 mm or shorter axially from the tip (3S) of the sheath tube (3), and the outer diameter of a sheath tip part (3C) surrounding the tip side portion (7H) is 4.4 mm or less.</p> |
