METHOD OF ELECTRIC INGNITER ACTUATION AND ASSOCIATED DEVICE Russian patent published in 2008 - IPC G08B17/06 F42C11/06 

FIELD: fire engineering.

SUBSTANCE: invention relates to fire engineering and is designed for automatic fire extinguishing. Method of electric igniter actuation includes preliminary charging of cumulative capacitor from electric power source through switch 1 and power supply from cumulative capacitor to electric igniter through switch 2. Temporary delay sufficient for cumulative capacitor charging is generated between signal controlled switch 1 and signal controlled switch 2. Actuation of temperature sensor 1 is the signal, which controls switch 1, whereas temperature sensor 2 actuation is the signal, which controls switch 2. Actuation temperature for sensor 2 is higher actuation temperature for sensor 1. Signals are generated if ambient temperature is increased. Electric igniter actuator includes energy source, cumulative capacitor, switch 1, electric igniter and switch 2. Normally open temperature sensor 1 is used as switch 1 and normally open temperature sensor 2 is used as switch 2. Actuation temperature for sensor 2 is higher actuation temperature for sensor 1. Thermal resistance between sensors 1 and 2 is less than thermal resistance between each sensor and environment.

EFFECT: proposed method and device allows for starting up electric igniter at high ambient temperatures while broadening the areas of igniter application.

18 cl, 5 dwg