TURBINE IMPELLER AND GAS-TURBINE ENGINE Russian patent published in 2015 - IPC F01D5/32 

FIELD: engines and pumps.

SUBSTANCE: turbine impeller includes a disk, a variety of blades and an axial stop ring. Each blade has a root and the first hook projecting from it in an axial direction. The first hook of the blade is oriented radially and determines the first groove opened radially in the direction of a rotation axis of the turbine impeller. The disk includes the second hooks projecting in an axial direction from its side end face on the same side as the first hooks. Every second hook is oriented radially and determines the second groove open radially in the direction of the rotation axis of the turbine impeller. The axial stop ring includes a tongue and has a possibility of being installed in the first and the second grooves for retention of blades in an axial direction. The tongue has a possibility of being arranged between two roots of adjacent blades for restriction of azimuthal movement of the ring. The other invention of the group relates to a gas-turbine engine containing the above said impeller.

EFFECT: group of inventions allows simplifying assembly of a turbine impeller.

13 cl, 5 dwg