Patent ID: 6776573
Filing Date: 2004-08-17
Classification: F01D,Y02T

Abstract:
Rotor bladed disc flange, comprising:a hub fixed to the rotor; a web covering one face of the disc and having a periphery of the web adjacent to the disc; and a plurality of labyrinth seal lickers on one face of the web away from the disc, and comprising cutting parts inclined towards an axial direction of the rotor and away from the flange towards tapered ends of the cutting parts, the cutting parts of the lickers being staggered axially and radially from each other, the web and the lickers having, in an axial section, a center of inertia separated from the disc by a radius passing through a principal flexion zone of the flange at a transition between the web and a stiffer part of the flange to which the web is connected.