Patent ID: 6338500
Filing Date: 2002-01-15
Classification: B60R,F42B,F42C

Abstract:
Hybrid gas generator (1) comprising a container (2, 102, 202) having an open end in which a compartment (3, 103, 203), which is located outside said container (2, 102, 202) and is provided with gas discharge orifices (6, 106, 206), is fixed, said compartment (3, 103, 203) containing an igniting system and having an openable wall which initially makes it possible to separate the inside of the container (2, 102, 202) from the inside of the compartment (3, 103, 203), in a leaktight fashion, said container (2, 102, 202) holding at least one gas under pressure, the igniting system comprising an initiator (12, 112, 212) with shaped explosive charge capable of destroying the openable wall of said compartment (3, 103, 203) from a distance, the initiator (12, 112, 212) with shaped explosive charge comprising an electrical initiator containing:i) a starting pyrotechnic composition (24) relayed by a relay primary explosive, ii) a composite explosive comprising at least one binder and at least one nitramine, said composite explosive being shaped in the form of a hollow charge, said compartment (3) accommodating a pyrotechnic charge (13) and having an internal partition (14) provided with an opening (15) closed by a diaphragm, said internal partition (14) making it possible to divide said compartment (3) into a first chamber for initiation and combustion (40) containing the initiator (12) with shaped explosive charge as well as the pyrotechnic charge (13), and a second chamber for mixing and discharging the gases (17) which includes the openable wall and the gas discharge orifice (6).