Aube in arrow turbomachine
2006
The invention relates to a turbomachine blade comprising a plurality of blade sections (22) stacked along a radial axis (ZZ), and wherein the projection of a line (28a) connecting the leading edges of the sections of blade of the lower stack (28) in a meridian plane has a first longitudinal angle of inclination (alpha) to the leading edge (24) which is between 10 ° and 25 °, the projection of a line (30a) connecting the leading edges of the blade sections of the intermediate stack (30) has a second longitudinal angle of inclination (beta) towards the trailing edge (26) which is between 10 ° and 25 °, the projection of a line (32a) connecting the leading edges of the blade sections of the top stack (32) has a third longitudinal angle of inclination (gamma) to the trailing edge is between 20 ° and 50 °, and the lower limit ( 34) of the intermediate stack (30) of the blade sections is between 30% and 40% of the height total radial (h) of the stack of blade sections.
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