Variable orifice construction

摘要

A pressure vessel for an air bag inflator. The pressure vessel has a portion that is deformable by internal pressure resulting from combustion of gas generant therein. The deformable portion of the pressure vessel has at least one exit orifice therein. Upon deformation of the pressure vessel portion by internal pressure, the size of the exit orifice is increased to expedite the release of pressurized combustion gas from the pressure vessel.

主权项

1. A pressure vessel for an air bag inflator,
the pressure vessel being formed of a material that is deformable by internal pressure therein resulting from the combustion of gas generant therein, the pressure vessel comprising at least one open and unobstructed exit orifice therein that is defined by a surrounding peripheral portion of the pressure vessel, whereby upon deformation of the pressure vessel by internal pressure the peripheral portion is expanded to increase the size of the exit orifice to expedite the release of pressurized combustion gas from the pressure vessel.