Turbomachine rotor having a sealing ring

Claim 1

A rotor for a turbomachine, comprising: a plurality of rotor disks each carrying radially extending blades, p1 an annular spacer having a substantially double-T-shaped cross-section located between two successive ones of said disks, said spacer and one of said disks defining an annular space between them, and a gap existing between said spacer and one disk through which the region radially outwardly of said spacer and between the blades of the two successive disks communicates with the annular space, and a sealing ring within the annular space, said sealing ring being a strip of springy sheet material having a cross-sectional contour approximating the shape of the radially outer wall of the annular space and arranged with its width extending across the gap, said sealing ring being compressed across its width to axially load it, and the widthwise central portion of said sealing ring being bellied toward the axis of the rotor when the rotor is stationary, said bellied portion being straightened and said sealing ring being pressed by centrifugal force against the radially outer wall of the annular space to seal the gap when the rotor rotates.