PYROTECHNIC GAS GENERATOR FOR INFLATING SAFETY CUSHIONS IN VEHICLES

摘要

A pyrotechnic gas generator for inflating safety cushions in vehicles, including a device for regulating the operating pressure and/or limiting the maximum gas pressure in the generator, comprises a combustion chamber defined in a cup-shaped member having its open end releasably held against a casing part and movable away from the casing part, by the gas pressure in the combustion chamber, to open up an injection orifice of variable through flow area which connects the combustion chamber with a cooling chamber containing solid coolant.