Flüssigtreibgas-Aufblasvorrichtung mit einer Einrichtung zum Verhindern des Zerberstens der Vorrichtung

An inflator of a vehicle safety restraint system includes a housing having a reservoir of liquid propellant. A combustion chamber is disposed in the housing in communication with the liquid propellant reservoir. A regenerative piston is movably disposed within the housing for separating the liquid propellant reservoir and the combustion chamber. The piston head includes a plurality of injection ports for delivering the liquid propellant to the combustion chamber in a controlled manner. A pressure relieving bore, normally sealed by the piston stem, is disposed in the housing for relieving pressure in the liquid propellant reservoir. Decomposition or combustion within the propellant storage reservoir will move the piston to open the pressure relief bore which depressurizes the liquid propellant and prevents rupture and fragmentation of the inflator.