Turbomachine rotor assembly with two bladed-discs separated by a spacer
AssigneeSnecma Moteurs
InventorsBruno Beutin, Michel Brault, Pascal Gervais, Elisabeth Guigli, Monique Thore
Life of this patent
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Abstract
A spacer (36) made to be installed between two permanently connected discs (31 and 32), without a bolted flange, and comprising axial thrust (43, 47) as well as outer radial thrust (45, 48) alignment surfaces (41). It comprises moreover an outer cover (37) to provide sealing and a cooling passageway, and stiffening tongues (38) which accommodate thrust loads.
Claims8
Turbomachine rotor assembly, comprising two bladed-discs (31,32) and a spacer (36), at least one of the discs (31) being equipped with serrations (3) to house the roots (4) of the blades (5), where the spacer (36) comprises a cover (37) surrounding the serrated disc (31);
- tongues (38) which slot into the serrations (3);
- internal radial thrust faces (41) on the matching faces (42) formed on one of the discs (31), and outer axial thrust faces (43, 47), the inner radial thrust faces (41) being located on the tongues (38), characterised in that the outer axial thrust faces form the primary faces (43) that press against one of the discs, and the secondary faces (47), opposite the primary faces (43) that press against an associated seal (7) on the other side of the discs.
Dependencies are inferred from the claim text.