EP 2076410 A2 20090708 - PYROTECHNICAL METHOD FOR DUAL-MODE GAS GENERATION AND RELATED PYROTECHNICAL GENERATOR
Title (en)
PYROTECHNICAL METHOD FOR DUAL-MODE GAS GENERATION AND RELATED PYROTECHNICAL GENERATOR
Title (de)
PYROTECHNISCHES VERFAHREN ZUR DOPPELMODUS-GASERZEUGUNG UND ENTSPRECHENDER PYROTECHNISCHER GENERATOR
Title (fr)
PROCÉDÉ PYROTECHNIQUE DE GÉNÉRATION DE GAZ A DEUX RÉGIMES - GÉNÉRATEUR PYROTECHNIQUE ASSOCIÉ
Publication
Application
Priority
- FR 2007052090 W 20071008
- FR 0654144 A 20061009
Abstract (en)
[origin: WO2008043946A2] The invention relates to a pyrotechnical method for generating a gas at two successive flow rates, i.e. a first flow rate and a second flow rate, said first flow rate being higher than said second flow rate, that comprises: the combustion of a first pyrotechnical charge (10) in a first combustion chamber (1) discharging into a second combustion chamber (2) through at least one nozzle (3); and the combustion of a second pyrotechnical charge (20) in said second combustion chamber (2) discharging towards the outside through at least one vent (21). Typically, said first combustion chamber (1) operates at a high pressure while said second combustion chamber (2) operates at a low pressure. The invention also relates to a gas pyrotechnical generator for implementing said method. The invention can essentially be used for side-protection inflatable bags (curtain airbags) used in automobile safety.
IPC 8 full level
B60R 21/264 (2006.01)
CPC (source: EP US)
B60R 21/2644 (2013.01 - EP US); F42B 3/04 (2013.01 - EP US); B60R 2021/2648 (2013.01 - EP US)
Citation (search report)
See references of WO 2008043946A2
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2008043946 A2 20080417; WO 2008043946 A3 20080529; EP 2076410 A2 20090708; US 2010083863 A1 20100408; US 8453575 B2 20130604
DOCDB simple family (application)
FR 2007052090 W 20071008; EP 07858521 A 20071008; US 44463207 A 20071008