PACKAGES OF WORKING BLADES WITH COMBINED SHANKS Russian patent published in 2016 - IPC F01D5/30 

FIELD: energy.

SUBSTANCE: invention relates to heat engineering and can be used in designing working blades of steam and gas turbines. Packages of working blades, integrally-machined or welded, with shanks with radial and tangential twist, include shanks of type T representing T-like shanks, alternating with shanks of type B, formed by removal of support surfaces in T-shaped shank, wherein shanks of type T alternate with shanks of type B in combinations T+B, B+T, T+B+T, T+B+T+B, B+T+B+T, T+B+T+B+T. Packets are installed on disc with corresponding number of slots at observance of symmetry along circle with fork locking blades and location near latter, of shanks of type T packets. In case of location next to two shanks of B type between them is installed one rivet.

EFFECT: invention allows to reduce concentration of stresses on turbine disk and increasing its repairability.

1 cl, 3 dwg