BOLTLESS BLADE AND SEAL RETAINER

A boltless blade retainer which provides a cooling air chamber around the dovetail slots of a turbomachinery rotor is disclosed to include a continuous annular ring which has a portion extending radially outwardly therefrom to radially position the rotor blades within the dovetail slots and to preclude axial movement of the rotor blades within the dovetail slots. The blade retainer further includes a plurality of tabs which fit between fingers which extend from a face of the rotor disc near the rim thereof. The tabs and fingers hook together in an interlocking manner which prevents relative rotation of the blade retainer and the disc. After the retainer is positioned on the disc, a split retaining ring is installed under the hook-shaped disc fingers thus securing the blade retainer to the disc. A rabbet is provided near the rim of the rotor disc to support the retainer in the radial direction.