초록 ▼

An improved hybrid airbag inflator comprises a container for storing a compressed gas having a rupturable wall defining an exit opening. A pyrotechnic gas generator has an output directed into the container for adding heat and mass flow to the compressed gas in the container. A single initiator rupt

An improved hybrid airbag inflator comprises a container for storing a compressed gas having a rupturable wall defining an exit opening. A pyrotechnic gas generator has an output directed into the container for adding heat and mass flow to the compressed gas in the container. A single initiator ruptures the rupturable wall and initiates the gas generator, preferably via a pyrotechnic delay train which initiates combustion of the gas generator after a predetermined delay, to provide for delayed onset of the high pressure gas generator input. The initiator is preferably an electric detonator that produces a self forging fragment to rupture the rupturable wall and initiate the pyrotechnic delay. The pyrotechnic generator may also have a second output directed into a manifold leading from the container to the airbag and entering the manifold downstream from the inlet nozzles that restrict the flow of compressed gas into the manifold.

대표청구항 ▼

[ What is claimed is:] [11.] An apparatus for inflating an inflatable vehicle occupant restraint comprising:a container for storing a compressed gas, said container including a rupturable wall which is rupturable to define a gas exit opening in fluid communication with said inflatable vehicle occupa

[ What is claimed is:] [11.] An apparatus for inflating an inflatable vehicle occupant restraint comprising:a container for storing a compressed gas, said container including a rupturable wall which is rupturable to define a gas exit opening in fluid communication with said inflatable vehicle occupant restraint;a pyrotechnic gas generator having a combustion gas outlet directed into said compressed gas container for mixing a gas output of said pyrotechnic gas generator with said compressed gas;a pyrotechnic ignition train having an input end and an output end, said output end adapted to initiate combustion of said pyrotechnic gas generator; andan initiator, which upon initiation ruptures said rupturable wall and initiates said input end of said pyrotechnic ignition train, said initiator comprising an elongate housing containing an ignitable material having an output end covered by a metallic liner, which forms a self forging fragment upon initiation of said ignitable material.