FAN BLADE OF GAS TURBINE ENGINE Russian patent published in 2018 - IPC F01D5/26 F01D5/14 F04D29/38 

FIELD: machine building.

SUBSTANCE: invention relates to the field of mechanical engineering, namely to fan blades with a damper for damping vibrations, including long hollow wide-chord fan blades. Turbine fan blade consists of a base, a metal shell forming a trough, a back and a leading edge, load-bearing power elements installed in the cavity within the metal casing, and damping material. Blade has an end plug with which the load-bearing power elements are rigidly connected, intermediate partitions are installed between the base and the end plug, through the holes in which the load-bearing power elements pass, and the damping material is placed in the cavity between the intermediate partitions and the end plug and the intermediate partition and is made in the form of honeycombs filled with hollow aluminosilicate microspheres, load-bearing power element located closer to the leading edge is made in the form of a metal tube filled with aluminosilicate hollow microspheres.

EFFECT: design is simplified and shock and vibration strength is increased.

6 cl, 16 dwg