| 摘要 |
A heat shield configuration for structures carrying hot fluid, especially metal components of gas turbine systems and combustion chambers, includes adjacent mushroom-shaped ceramic material heat shield elements being mutually spaced apart defining expansion gaps therebetween, each of the heat shield elements having a surface-covering polygonal cap portion being flat or curved with straight or curved outer edges and a shank portion with an end facing away from the cap portion, the ends of the shank portions having beads formed thereon. A support structure on which the heat shield elements are anchored at a distance defines a space between the support structure and the heat shield elements to be subjected to fluid through channels formed in the support structure. Clamps secure the beads to the support structure and additional devices are provided for supporting the heat shield elements against the support structure. The clamps are formed of heat-resistance material, such as metal or heat-resistant alloys, with substantially greater elasticity then the ceramic material of the heat shield elements, the clamps having shapes forming springs fixing the heat shield elements on the support structure, and the clamps substantially determine a force with which the heat shield elements are retained on the support structure. |
