Heat shield
AssigneeCommissariat a l'Energie Atomique
InventorsManfred Lipa, Claude Deck, Pierre Deschamps
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Abstract
The heat shield according to the invention makes it possible to protect a structure from a very high thermal flux. It is mainly constituted by tiles (2) fixed to a support structure (4) by means of a spring (8) fixed in translation with respect to a tile (2) and on which bears a locking arm (10). The latter can be fixed to the support structure (4) by means of locking screws (30), which are accessible from the outside through locking orifices (12) in the tile (2). The compression of the spring (8) allows locking to take place and also a satisfactory heat exchange from the tile (2) to the support structure (4), which can be cooled by cooling medium flow ducts (14).
Claims5
A heat shield comprising a support structure made from a heat conducting material and cooled by an internal cooling fluid flow, parallelepipedic protective tiles made from a heat resistant material and affixed to the support structure via elastic fixing means with a shaping layer therebetween, wherein the elastic fixing means comprise for each tile a tie rod fixed at a first end to the rear face of the tile, a plate spring fixed at its center perpendicular to the second end of the tie rod, and a mobile locking arm slidably mounted around the tie rod between the spring and the tile, and having at each end a bearing surface against which respectively abut each of the ends of the plate spring tensioned by a locking means, wherein the locking means comprise at least two locking screws screwed into the support structure and into fixing holes contained within said support structure, said locking screws each having a head which bears on the locking arm at the ends of said arm facing the rear face of the tile, the heads of the locking screws being accessible by the front face of the tile by a small diameter locking orifice.
Dependencies are inferred from the claim text.