INDEPENDENT HEAT STARTER Russian patent published in 1997 - IPC

FIELD: fire prevention for equipment of small-sized fire-extinguishing installations with a forced system of extinguisher expulsion, as well as due to generation of hot gas by installations of thermochemical operating principle. SUBSTANCE: at an origination of fire, when the ambient temperature attains the critical value, the heat fuse made of material possessing the effect of "shape memory" gets reset and takes the shape at actuation; tapered neck 1 of the spring-loaded needle gets disengaged from the heat fuse, and the primer cap is pierced. At burning of the solid-fuel charge the actuating systems of the fire-extinguishing installations are fed with working gas. Stabilization of burning and provision of the necessary flow rate of the gas generator occur by means of an orifice plate. EFFECT: enhanced reliability. 2 cl, 3 dwg