AXIAL GAS TURBINE ROTOR Russian patent published in 2014 - IPC F01D5/08 F01D5/30 

FIELD: machine building.

SUBSTANCE: axial gas turbine rotor comprises a rotor disk with cooled working blades set on it and a cover disk which is set on the rotor disk rim forming an annular cavity and is fixed by stationary detachable connections. In the disk rim and in the base of tail end at each blade there provided are channels to supply cooling air into the cavities under the blades' base and into the inner cavities of the working blades. The rotor disk is fitted by a circular fitting collar made on the disk rim, and the cover disk is fitted by a groove mating the fitting collar. The channels in the disk rim are made open on its surface on the side of the cover disk and inclined on the side of the base of the tail end of each blade. The detachable connection is made as radially centred along one axis holes in the walls of the cover disk grooves and fitting collar of the rotor disk and as pins inserted in the said holes. The rotor comprises at least three detachable connections.

EFFECT: invention allows for the improvement of reliability and fabricability of the rotor of a gas turbine engine turbine and for the decrease of its weight.

2 dwg