Impact cooling system for cooling surface e.g. of combustion chamber wall

摘要

The system has two tubes (7) arranged in the flow direction of the cooling air one behind the other. Holes (8) are provided at the bottom of each tube. The end of the tube (7) seen in the flow direction is respectively tightly sealed.The design for the impact cooling can consist of trapezium sections arranged at right angles to the flow direction of the prim. cooling air. The trapeziums are connected with each other, and are respectively open at the small side of the trapezium. The side of the trapezium facing the cooling surface is provided with holes.