GLOW PLUG

PURPOSE:To obtain a glow plug improving an effect of a catalyst, superior in a temperature maintaining function of a plug after suspension of electrification and enabling to eliminate ignition delay after suspension of electrification, by making the catalyst into a reticular body made of metal. CONSTITUTION:A reticular body 24 having catalytic activity is wound round the external circumference of a shaft enclosing tube 14. As for the reticular body 24, a layer of substance having the catalytic activity is formed on the surface of its strand, through which oxidation reaction of injected fuel is expedited and a temperature of a glow plug 10 is maintained by its reaction heat. Thereby, the ignition delay of an engine can be eliminated by a method wherein a reaction surface area becomes large, reaction is expedited and maintenance of a temperature of the glow plug after suspension of electrification is facilitated.