Patent ID: 8951017
Filing Date: 2015-02-10
Classification: F01D

Abstract:
1. A turbomachine blade made of composite material, in which a long dimension defines a radial direction, the blade including a root extending in an axial direction, with a bulb-shaped end suitable for engaging in a slot of a rotor disk and radially locking the root in the slot, wherein the bulb-shaped end of the root of the blade includes a first enlarged portion and a second projecting portion, wherein the second projecting portion is beside a front face of the first enlarged portion, and extends in a transverse direction, wherein the second projecting portion includes two fins that are symmetrical relative to an axial midplane of the root and each fin has a bearing face suitable for limiting tilting of the blade relative to the rotor disk about the axial direction, wherein a transverse extent of the projecting portion between free ends of the two fins is greater than a greatest distance between two side faces of the enlarged portion of the root of the blade, and wherein the root of the blade includes an insert having a portion that forms at least a part of the second projecting portion or that constitutes the second projecting portion.