Patent ID: 8740568
Filing Date: 2014-06-03
Classification: F01D,Y02T

Abstract:
1. A turbomachine fan rotor having an axis of rotation and comprising: a disk carrying blades including roots that are engaged in substantially axial grooves in an outer periphery of the disk, each axial groove having a bottom; a retaining cheekplate secured to the disk; and spacers engaged between said bottom of the grooves in the disk and the blade roots, an upstream end of each spacer configured to bear against the retaining cheekplate, each spacer including a nib extending radially outwards relative to the axis of rotation and configured to retain an upstream end of the corresponding blade root, wherein the nib of each spacer includes a downstream abutment face against which the upstream end of the blade root directly bears in a stress state induced by a violent force exerted on at least one of the blades, the downstream abutment face being oblique relative to the axis of rotation of the rotor.