Pyrotechnical method for dual-mode gas generation and related pyrotechnical generator
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United States of America Patent
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Jun 4, 2013
Grant Date -
Apr 8, 2010
app pub date -
Oct 8, 2007
filing date -
Oct 9, 2006
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Abstract
The subject of the present invention is a pyrotechnic method for generating gas at two successive flow rates—a first flow rate then a second flow rate, said first flow rate being higher than said second flow rate—which comprises:
- the combustion of a first pyrotechnic charge (10) in a first combustion chamber (1) discharging into a second combustion chamber (2) via at least one nozzle (3); andthe combustion of a second pyrotechnic charge (20) in said second combustion chamber (2) discharging to the outside via at least one vent (21). Characteristically, said first chamber (1) operates at high pressure and said second chamber (2) operates at low pressure.
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