Turbine wheel for a turbomachine including a damper with a groove

Abstract

A turbine wheel comprising a disk having a plurality of blades (3) arranged circumferentially end to end, each comprising a foot (4) retained in a recess, a platform (5) carrying a blade (6), an upstream radial wall (7) and a downstream radial wall (8) extending towards the disk from the platform, inter-blade cavities (9) being arranged circumferentially between two adjacent blades and housing a sealing and damping element, at least one inter-blade cavity comprising at least one groove (14) formed in the foot and platform of one of the two circumferentially adjacent blades, the groove extending circumferentially from a circumferential end face (12) to a radially internal face (11) of the platform and being configured to allow fluid connection of the inter-blade cavity to an inter-sector space located at the junction between the platforms of the two blades. Fig. 3.

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