Patent ID: 7037078
Filing Date: 2006-05-02
Classification: F01D,Y02T,Y10S,Y10T

Abstract:
1. A method of making a turbomachine turbine, the turbine comprising one moving wheel having a rotor and a plurality of blade inserts, each of the inserts connected thereto used for the moving wheel comprising at least two blades interconnected by common inner and outer platforms and sharing a common root, the method comprising providing each of at least some of the blade inserts with a hollow root by forming a recess in the insert root, with hollow insert roots belonging to the wheel being voluntarily given different configurations for the recesses in their roots so as to adjust the resonant frequencies of the corresponding blade inserts to values that are significantly different and connecting the blade inserts to the rotor of the moving wheel, with the recesses formed in the hollow roots remaining free, thereby ensuring that the blade inserts of the wheel are out of tune.