A variable pitch blade propeller hub for a turbomachine with a longitudinal axis includes a polygonal ring supporting the blades, concentric with the longitudinal axis and including two spaced parallel annular end flanges between which are diametrically fastened, by root areas arising from the annular flanges, collars with cylindrical radial housings to receive the blades. The collars are equi-angularly distributed at the lateral periphery of the polygonal ring and separated from each other by intermediate areas with through-openings. The also includes connectors connecting the polygonal ring to a turbine rotor element of the turbomachine. The intermediate areas defined between two concentric collars and the annular end flanges include elements for reinforcing the collars that are arranged radially and/or tangentially and fastened at least to the lateral walls of two consecutive collars.
MOYEU D'HÉLICE À ANNEAU POLYGONAL RENFORCE ET TURBOMACHINE ÉQUIPÉE D'UN TEL MOYEU
PROPELLER HUB PROVIDED WITH REINFORCED POLYGONAL RING AND TURBOMASHINE EQUIPPED WITH SAID HUB
PROPELLERNABE MIT VERSTÄRKTEM POLYGONALRING UND TURBOMASCHINE AUSGESTATTET MIT DER NABE
2017-07-19
Patent
Electronic Resource
French
MOYEU D'HELICE A ANNEAU POLYGONAL RENFORCE ET TURBOMACHINE EQUIPEE D'UN TEL MOYEU
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