COMPACT DUAL NOZZLE AIR BAG INFLATOR

摘要

A multi-level output inflator (10) for inflating an air bag in the event of a vehicle crash, comprising a housing, a wall section disposed in the housing to define separate primary and secondary combustion chambers (18,20) therein. A primary initiator (30) and primary propellant are disposed within the primary combustion chamber (18), and a secondary initiator (32) and secondary propellant are disposed with the secondary combustion chamber (20). The housing comprises a primary nozzle (22) in communication with the primary combustion chamber (18), and a secondary nozzle (32) in communication with the secondary combustion chamber (20). The primary and secondary initiators (30,32) may be fired separately, simultaneously, or in a timed sequence to inflate the air bag at different rates and levels depending on the nature of the vehicle crash. A method of assembling the components of the inflator is also described and covered.