Patent ID: 7740273

Claim:
A temperature or pressure compensated airbag inflator system, comprising: an inflatable airbag; a housing; and a gas generating system arranged in said housing for generating gas, said gas generating system comprising a combustion chamber and an arrangement for controlling the flow of gas out of said combustion chamber as a function of at least one of the temperature and pressure of the gas within said combustion chamber, said arrangement comprising; a first wall at least partially defining said combustion chamber, said first wall having an opening through which gas flows from said combustion chamber to inflate said airbag; and a base forming a second wall exterior of said combustion chamber and attached thereto, said first wall being spaced apart from said second wall to define a conduit therebetween, said conduit having an exit opening defined between said spaced apart first and second walls prior to generation of gas by said gas generating system, the gas once generated by said gas generating system passing through said conduit and out of said exit opening, said first wall being displaceable relative to said second wall to thereby vary at least one dimension of said conduit or said exit opening of said conduit after and as a result of generation of gas by said gas generating system and control flow of gas out of said combustion chamber.