Combustion chamber walls with optimised dilution and cooling, combustion chamber and turbomachine equipped with same

摘要

The wall (7b) has dilution holes (30b) divided into small dilution holes and large dilution holes based on values of diameters, where the large and small holes are provided with respective downstream edges. Multiperforation orifices (40b) have an upstream edge with diameters less than that of the small holes. The small holes are axially displaced towards the downstream of the wall with respect to the large holes. The downstream edge of the small holes is aligned circumferentially with the downstream edge of the large holes.