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1. (WO2018133977) HYBRID GAS GENERATOR, METHOD FOR OPERATING A HYBRID GAS GENERATOR, AIRBAG MODULE AND VEHICLE SAFETY SYSTEM

Pub. No.:    WO/2018/133977    International Application No.:    PCT/EP2017/079754
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Tue Nov 21 00:59:59 CET 2017
IPC: B60R 21/272
B60R 21/264
B60R 21/274
Applicants: TRW AIRBAG SYSTEMS GMBH
Inventors: JUNG, Christian
BIERWIRTH, Sebastian
EBNER, Johannes
NEUMAYER, Hans-Peter
OBERSTARR, Martin
HILLMANN, Daniel
ISENMANN, Uta
LAST, Detlef
Title: HYBRID GAS GENERATOR, METHOD FOR OPERATING A HYBRID GAS GENERATOR, AIRBAG MODULE AND VEHICLE SAFETY SYSTEM
Abstract:
The invention relates to a hybrid gas generator (10) which comprises a compressed gas chamber (20) and an igniting unit (30), wherein the compressed gas chamber (20) is closed by a first igniter-side bursting membrane (21) and a second bursting membrane (22). According to the invention, a first, rapidly burning-off pyrotechnic agent (51) and a second pyrotechnic agent (52) burning off slowly in comparison to the first pyrotechnic agent (51) are located in the hybrid gas generator (10), wherein the second bursting membrane (22) is openable by positive pressure which can be generated in the compressed gas chamber (20), and the first pyrotechnic agent (51) is separated from the second pyrotechnic agent (52) in such a manner that the positive pressure in the compressed gas chamber (20) for opening the second bursting membrane (22) can be generated by the first pyrotechnic agent (51).