| 摘要 |
A turbine engine impeller (1a, 1c), comprising a disc bearing vanes with roots (3a, 3c) fitted in grooves (6a, 6c) substantially parallel to an axis of revolution of the disc, the root connected to a blade (4a, 4c) by an integrated platform (5a, 5c), the platforms cooperating to form a radially inner wall of a duct, at least one annular plate (14, 21) which is fixed to the disc comprising a transverse annular portion (32, 57) forming an axial stop of vane roots, characterised in that the integrated platform (5a, 5b, 5c) of each vane has no spoiler and stops axially to the right of transverse faces of the root, transverse annular portion bears an annular spoiler (16, 23) which extends in an axial space between the impeller and an adjacent module of the turbine engine without rubbing against said module. The turbine impeller may furthermore comprise an annular plate bearing annular knife-edge seals (34, 59) of a labyrinth sealing joint (35, 62). |
