Fringed thermal protection device
AssigneeSociete Nationale Industrielle et Aerospatiale
InventorsChristiane Ferrier, Jean Claudel
Life of this patent
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Abstract
A thermal protection device for protecting walls of structures exposed to ablative flow at high temperatures in the presence of vibrations comprises, embedded in a thermally insulative matrix, a refractory armature formed by a fringed mat comprising a meshed part exposed to the ablative flow and fringes intended to be directed towards the wall of the structure to be protected. The device further comprises an open-weave refractory woven material parallel to the meshed part of the armature and through which the fringes pass.
Claims16
Thermal protection device for protecting a structure wall to be submitted to an ablative flow at high temperatures, said device comprising:
- a thermally insulative matrix layer for extending parallel to the structure wall;
- an open-weave refractory woven material provided with meshes and embedded in said thermally insulative matrix layer and extending parallel thereto;
- a refractory armature separate from said woven material and embedded in said thermally insulative matrix and comprising ablation means for exposure to the ablative flow, said ablation means comprising a meshed part, and fringes integral with said meshed part and extending through said meshes of said open-weave refractory woven material.
A thermal layer for protecting a structural wall therebeneath against ablative flow at high temperatures, comprising:
- a refractory armature in the form of a fringed mat formed of refractory fibers and including (i) ablation means for contact with hot gases and comprising a meshed part forming a surface layer for exposure to the ablative flow, and (ii) fringes integral with and extending from said meshed part in a direction substantially perpendicular therefrom;
- an open-weave refractory woven material formed of stiff fibers and provided with meshes, said meshes comprising interlocking adjacent coils extending generally parallel to one another, and said coils and said fringes of said armature being interpenetrating with one another whereby said fringes extend through said coils;
- and
- a thermally insulative matrix embedding said refractory armature and said open-weave refractory woven material.
A thermal protection device for protecting walls of structures exposed to ablative flow at high temperatures in the presence of vibrations comprising:
- a refractory armature formed by a fringed mat including ablation means for contact with the ablative flow and fringes substantially perpendicular to said ablation means, said ablation means comprising a mesh structure;
- an open-weave refractory woven material formed of steel fibers and lying adjacent to the mesh structure of the armature and through the meshes of which said fringes pass;
- and
- a thermally insulative matrix embedding said refractory armature and said open-weave refractory woven material.
Dependencies are inferred from the claim text.