초록 ▼

An apparatus (10) for providing inflation fluid for inflating an inflatable vehicle occupant protection device (14) includes a housing (20) and an inflation fluid source (140) in the housing actuatable to provide inflation fluid under pressure. The housing (20) has a fluid passage (130) for directin

An apparatus (10) for providing inflation fluid for inflating an inflatable vehicle occupant protection device (14) includes a housing (20) and an inflation fluid source (140) in the housing actuatable to provide inflation fluid under pressure. The housing (20) has a fluid passage (130) for directing flow of inflation fluid out of the housing (20) to the inflatable device (14). The housing (20) deforms due to the pressure of inflation fluid in the housing upon actuation of the inflation fluid source (140). The flow area of the fluid passage (130) increases due to deformation of the housing (20) and varies in accordance with the pressure of inflation fluid in the housing upon actuation of the inflation fluid source (140). The apparatus also includes a flow control member (180) defining a control passage (210) located between the inflation fluid source (140) and the fluid passage (130). The control passage (210) has a smaller flow area than the fluid passage (130). The flow area of the control passage (210) increases due to deformation of the housing (20) and varies in accordance with the pressure of inflation fluid in the housing (20) upon actuation of the inflation fluid source (140).

대표청구항 ▼

[ Having described the invention, we claim:] [1.]1. An apparatus for providing inflation fluid for inflating an inflatable vehicle occupant protection device, said apparatus comprising:a housing;a combustion cup in said housing defining a combustion chamber;an inflation fluid source in said combusti

[ Having described the invention, we claim:] [1.]1. An apparatus for providing inflation fluid for inflating an inflatable vehicle occupant protection device, said apparatus comprising:a housing;a combustion cup in said housing defining a combustion chamber;an inflation fluid source in said combustion cup actuatable to provide inflation fluid under pressure;a fluid passage between said housing and said combustion cup for directing flow of inflation fluid out of said housing to the inflatable device;said housing deforming due to the pressure of inflation fluid in said housing upon actuation of said inflation fluid source to open said fluid passage;a flow area of said fluid passage increasing due to deformation of said housing and varying in accordance with the pressure of inflation fluid in said housing upon actuation of said inflation fluid source; anda flow control member having a domed central wall extending across the entire combustion chamber, said flow control member defining a control passage located between said inflation fluid source and said fluid passage, said control passage having a smaller flow area than said fluid passage, the flow area of said control passage increasing due to deformation of said housing and varying in accordance with the pressure of inflation fluid in said housing upon actuation of said inflation fluid source.