VEHICLE OCCUPANT RESTRAINT APPARATUS

摘要

To achieve programmed inflation of an airbag in a vehicle occupant restraint apparatus, movement of a piston (14), that separates a combustion chamber (20) from a liquid propellant reservoir (24), is utilized to vary the opening size of an injection port through which liquid propellant (26) is regeneratively pumped from the reservoir (24) into the combustion chamber (20) for combustion, such that the rate at which the bag inflation gas is generated during an inflation period may be controlled.