Rotor drum for e.g. turbo-jet engine of aircraft, has cooling units at internal surface and at right of sealing elements to exchange heat by convection between wall and cooling and ventilation air circulating inside walls and between disks

摘要

The drum has a rotor disk (20) and another rotor disk connected with each other by a cylindrical rotating wall (40) that includes annular sealing elements (46) extending radially towards from an external surface of the walls. The sealing elements cooperate with annular abradable elements (48) of a stator of a turbomachine for forming a labyrinth sealing joint. The walls include cooling units at internal surface and at the right of the sealing elements for exchanging heat by convection between the wall and cooling and ventilation air (50) circulating inside the walls and between the disks.