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Pyrotechnical gas generator i.e. hybrid generator, for curtain type airbag triggering unit of automobile, has piston reapplying against seat under action of elastic return unit to allow passage of gases from upstream to downstream
Pyrotechnical gas generator i.e. hybrid generator, for curtain type airbag triggering unit of automobile, has piston reapplying against seat under action of elastic return unit to allow passage of gases from upstream to downstream
The generator has a combustion chamber (C) comprising a pyrotechnic initiator (2) and a pyrotechnic load (3) whose combustion is triggered by the initiator, which communicates with a spray chamber (D). Gases (G) resulting from combustion of the load are transferred by the spray chamber. The spray chamber is equipped with a piston (5) placed against a wall (14) by an elastic return unit (6) to block an opening (140). The piston is reapplied against a seat under an action of the elastic return unit, so as to allow passage of the gases from an upstream to a downstream through a channel.
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