发明授权
US3609072A Electric igniter system 失效
电气IGNITER系统

Electric igniter system
摘要:
An electric igniter system for a fuel burner including an electrical resistance type igniter, wherein the resistance element is of a type having a negative temperature coefficient and is coupled to a thermistor having a positive temperature coefficient. An electrically operated fuel valve is energized only after the igniter and thermistor resistances have been changed by heat from the igniter to values corresponding to the generation of fuel ignition temperatures by the igniter.
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