Protective structure

Abstract

A protective structure, comprising a first material region having a surface facing the exterior and an inner boundary surface, wherein channels for conducting fluid are disposed between the outer surface and the inner boundary surface, and a second material region, which is thermally connected at least in sub-regions to the inner boundary surface of the first material region and which is porous, wherein in pores a reaction medium and/or cooling medium is stored and channels for conducting fluid extend as far as the inner boundary surface of the first material region.

1 . Protective structure, comprising:
 a first material region having a surface facing the exterior and an inner boundary surface;   channels for conducting fluid being disposed between the outer surface facing the exterior and the inner boundary surface; and   a second material region, which is thermally connected at least in sub-regions to the inner boundary surface of the first material region and which is porous;   wherein in pores at least one of a reaction medium and a cooling medium is stored; and   wherein channels for conducting fluid extend as far as the inner boundary surface of the first material region.   
     
     
         2 . Protective structure according to  claim 1 , wherein at least one of the first material region and the second material region is of an open-pored configuration. 
     
     
         3 . Protective structure according to  claim 2 , wherein the second material region has a higher porosity than the first material region. 
     
     
         4 . Protective structure according to  claim 1 , wherein at least one of the first material region and the second material region has channels formed by at least one of cracks and bores. 
     
     
         5 . Protective structure according to  claim 1 , wherein at least one of
 (i) a layer of activating medium is disposed on the surface facing the exterior; and   (ii) the channels of the first material region are infiltrated with activating medium, wherein the activating medium closes the channels leading to the exterior and wherein the activating medium is adapted to be activated at least one of thermally and chemically in order to open the channels in the direction of the exterior,   is provided.   
     
     
         6 . Protective structure according to  claim 1 , wherein the second material region is fluidically connected to a reservoir device for at least one of reaction medium and cooling medium. 
     
     
         7 . Protective structure according to  claim 1 , wherein the reservoir device is formed by a third material region or comprises such a material region. 
     
     
         8 . Protective structure according to  claim 1 , said protective structure comprising a support structure, to which the combination of first material region and second material region is fastened. 
     
     
         9 . Protective structure according to  claim 1 , wherein at least one of the reaction medium and the cooling medium is stored in the second material region in the form of a gas, a solid or a liquid or as a gel. 
     
     
         10 . Protective structure according to  claim 9 , wherein at least one of the reaction medium and the cooling medium is conveyable by at least one of capillary action and overpressure of at least one of the reaction medium and the cooling medium from the second material region to the surface of the first material region. 
     
     
         11 . Protective structure according to  claim 1 , wherein the first material region and the second material region are integrally connected. 
     
     
         12 . Protective structure according to  claim 1 , wherein the first material region and the second material region are manufactured by separate material layers. 
     
     
         13 . Protective structure according to  claim 1 , wherein a heat-insulating layer is disposed between the first material region and the second material region. 
     
     
         14 . Protective structure according to  claim 13 , wherein the heat-insulating layer is multiply connected. 
     
     
         15 . Protective structure according to  claim 14 , wherein in the region of holes of the heat-insulating layer the first material region and the second material region are thermally connected. 
     
     
         16 . Protective structure according to  claim 15 , wherein at holes of the heat-insulating layer strips project from the first material region into the second material region. 
     
     
         17 . Protective structure according to  claim 16 , wherein strips project as far as a support structure for the second material region. 
     
     
         18 . Protective structure according to  claim 16 , wherein strips are configured in the shape of at least one of (i) a cuboid; (ii) pyramid; (iii) truncated pyramid; (iv) cone; (v) truncated cone; (vi) wedge; (vii) truncated wedge; (viii) cylinder. 
     
     
         19 . Protective structure according to  claim 16 , wherein the strips are manufactured from the material of the first material region. 
     
     
         20 . Protective structure according to  claim 1 , wherein the first material region is manufactured from a fibre material or fibre-ceramic material or ceramic material. 
     
     
         21 . Protective structure according to  claim 20 , wherein the first material region is manufactured from graphite or C/C or SiC or C—SiC or C/C—SiC. 
     
     
         22 . Protective structure according to  claim 1 , wherein the cooling medium is selected so that at least one of transpiration cooling and effusion cooling is effected.