FUEL TABLET AND PROPELLAN FOR A GAS GENERATOR
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United States of America Patent
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Sep 15, 2011
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Oct 29, 2010
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Abstract
The invention relates to a propellant pellet for pyrotechnical safety devices in vehicles, such as airbag modules, belt tensioners, micro-inflators and igniters. The propellant pellet according to the invention has a substantially cylindrical shape and can be obtained by dry injection of a powdered propellant composition. The pellets have a maximum diameter of 2 mm and preferably a relative bulk density, defined as ratio of bulk density of the propellant pellets to the maximum theoretical density of the propellant composition, of at least 0.5. A propellant charge, an igniter and an inflator each comprising a plurality of said propellant pellets are provided.
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