US Patent 7762580 Aspirated inflators

Airbag inflator system includes an inflatable airbag, a flexible housing, and a gas generating system for generating gas which is directed from the housing to the interior of the airbag. The housing may be made by an extrusion process to provide it with its flexible cl of plastic. An aspirating structure or nozzle may be arranged between the gas generating system and an interior of the airbag, which nozzle is varied as a function of temperature. The aspirating structure or arrangement enables air from the passenger compartment of the vehicle to mix with the generated gas prior to being directed into the airbag.