Variable inflation force airbag inflator

摘要

An inflator for an airbag includes a container defining and outer surface and an inner compartment. A plurality of igniters are disposed within the inner compartment and are operably associated with a gas-generating unit. Each gas-generating unit is formed by a pair of matched stamped housings. Bushing separate and secure the gas-generating units in place along the outer surface of the container. Each gas-generating unit defines an annular chamber filled with gas generating material. Each of the igniters within the container are independently ignitable and are mechanically isolated from each other to prevent actuation of one igniter in response to the actuation of an adjacent igniter. The igniters are independently actuated to control the magnitude of inflation force of the airbag.