STIFFENED HUB FOR UNSHROUDED PROPELLER WITH VARIABLE-PITCH BLADES OF A TURBINE ENGINE

摘要

The invention relates to a hub for an unshrouded propeller (14) with variable-pitch blades (18) of a turbine engine, including two parallel annular flanks (34) between which are arranged rings (36) which are distributed angularly in a regular manner around a longitudinal axis (A) of the hub, which are connected to the annular flanks (34), and which include recesses (26) receiving bearings (32) with radial axes (R) for guiding the rotation of the blade shanks (30) of said propeller, said rings (36) being connected two-by-two by linking means (40) which are arranged between the annular flanks (34) and which include substantially radial reinforcement partitions (42, 44, 46), characterised in that at least some of said reinforcement partitions (42, 44, 46) are connected to said annular flanks (34).