FIRE-EXTINGUISHING DEVICE Russian patent published in 2005 - IPC

FIELD: fire-fighting equipment, particularly aerosol generation devices.

SUBSTANCE: fire-extinguishing device includes aerosol generator creating gas-aerosol fire inhibiting substance and delivering the substance into closed space to be protected. Aerosol generator includes two pyrotechnic cartridges secured by two heat-shielding gypsum layers inside plate-like body parts facing each other, and rubbing ignition unit having ignition pin. Containers have rims defining annular outlet nozzle. Ignition pin is secured to fixed lid of rotary container holding generator. Container and lid are pivotally connected one to another and connected at least by three heat locks from opposite side thereof. Each heat lock is formed as spring-loaded rod suspended from stopper of heat-sensitive shape memory alloy. Heat locks are set so that heat locks are actuated under different triggering temperatures. Stop is made as ring installed in radial rod groove by cut thereof.

EFFECT: possibility of automatic actuation due to independent set of standby heat locks for different triggering temperatures, extended technological capabilities along with the usage of kinetic triggering heat lock impulse for synchronous fire alarm actuation.

2 cl, 1 dwg