Cooling device for a turbomachine shroud

摘要

The ventilation device for the turbo-machine ring (3) comprises a supply circuit (9) for gas originating from the turbo-machine discharging into a chamber (8) behind the ring. The chamber is cut by an annular distributor with its wall (7) drilled with distribution holes (12). The distributor is in the shape of a case (5) with a cover (6), placed between the wall and the circuit, drilled with holes (13) restricting the gas flow.