THERMAL POWER COOLED WALL CONSTRUCTION OF HIGH-TEMPERATURE AIR-GAS PATH ELEMENT

摘要

FIELD: machine building. ^ SUBSTANCE: thermal power cooled wall construction of high-temperature air-gas path element includes metal shell with cooling agent channels arranged in it. Shell is equipped on the path side with heat insulating screen adjacent to it. Screen is installed in shell as to seating with tightness and has grooves separated with ribs on the side of mating surface. Screen is made from heat-resistant composite material of carbon - carbon type or carbon - silicone carbide type or from metal of fekhral type. ^ EFFECT: wall construction provides effective cooling, decrease of temperature and thermal stresses in its elements, which allows producing light and reliable power machines and thermal units having the required running hours for various branches of engineering. ^ 8 cl