La Houille Blanche
Number 5, Octobre 2003
|Page(s)||111 - 115|
|Published online||01 July 2009|
Micropropulseur à propergol solide pour des applications spatiales
Solid Propellant Micro Thrusters For Space Application
LAAS-CNRS, 7 avenue du Colonel Roche, 31077 Toulouse cedex 4
2 LAAS-CNRS/CNES, 18 avenue Edouard Belin, 31501 Toulouse cedex 4
The paper presents the development of solid propellant micro thruster matrix on silicon. The concept is based on the pyrotechnic material combustion of propellant type stored in a micro machined silicon or Foturan tank. Each Thruster contains three parts : a thermal igniter, a tank and a nozzle. Due to the one shot characteristic thrusters are fabricated in array configuration. The main field of application is the realization of micro propulsion modules for nano satellite. The micro thrusters array presented in this paper contains 16 individual thrusters on 64 mm2 surface. Each thruster has a combustion surface of 2.25 mm2 and throat diameters of 105 µm and 150 µm. The manufacturing process is described and preliminary ignition results and combustion rate are given.
© Société Hydrotechnique de France, 2003
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