A PYROTECHNIC PRESSURE GENERATING COMPOSITION FOR DIFFERENT HIGH PERFORMANCE PYRO DEVICES

摘要

Disclosed herein is a single pyrotechnic pressure generating composition for three different high performance pyro devices used in space applications. It comprises of guanidinium azotetrazolate (GZT) as fuel and ammonium perchlorate (AP) as oxidant besides containing an energetic binder. The invention is having space applications for explosive actuated multi strand cable cutting shut off valve, mortar based parachute deployment system for deceleration of crew module and burst qualification of nozzle closures of solid rocket motors/liquid engines at sea level. It is also useful in gas pressure actuated mechanical devices such as power cartridges for cutting cables/diaphragms, large caliber guns/mortars for accelerating projectiles and gas pressure generators such as pushing of pistons, electric generators, turbines and pneumatic tools.