| 摘要 |
The invention relates to a turbine blade having an airfoil (31) extending above a platform (32) and a root (33) extending below said platform, the root of said blade having the form of a radially extending arm (34), being produced from composite material and having at least one cylindrical face (34), the direction of the generatrices of which is oriented in the direction of said platform so as to allow a clamping piece (5) to slide towards the latter on said cylindrical face under the action of centrifugal force, characterized in that said arm has, at its lower end, a protuberance (35) forming a radial bearing point for engagement with an element for retaining the blade on a turbine disc (1), and in that the root (33) is located entirely on the side of said protuberance with respect to said face. |
