Combustion chamber with a closed cooling system for a turbine

A combustion chamber with a closed cooling system for a turbine comprising:

• an inner wall facing the combustion area;
• an outer wall bounding the combustion area;
• an intermediate space between the inner wall and the outer wall through which a cooling fluid can flow;
• a cooling fluid feed system opening into the intermediate space;
• and
• a cooling fluid discharge for discharging the cooling fluid from the intermediate space, comprising a plurality of drainage structures extending substantially along the axial orientation of the combustion chamber, the drainage structures interrupted by inlet structures that feed the cooling fluid feed system;
• wherein the outer wall is configured as a double-layer hollow tile and the drainage structures are located inside the hollow tile and configured between walls of feed tubes arranged in rows one behind the other in the axial direction of the combustion chamber and projecting through the hollow tile to feed in the cooling fluid, whereby the feed tubes have an opening cross-section that is longitudinally extended in the axial direction of the combustion chamber at least in the outer layer of the hollow tile.