FAN OF GAS-TURBINE ENGINE Russian patent published in 2015 - IPC F01D5/30 F04D29/34 

FIELD: engines and pumps.

SUBSTANCE: fan of a gas-turbine engine includes a rotor disc, on the external peripheral part of which there are cells (14) intended for installation of root parts (24) of blades and restricted with longitudinal ribs (12). Each of the ribs includes radial eye lug (26) intended for attachment of the above disc on the rotor of the compressor located in a flow direction behind this fan. Side surfaces of the above eye lugs (26) form pores intended for retention of blades installed on the disc. Clamps (32) having a U-shape are installed on the eye lugs of the disc. Each of these clamps includes two side legs covering the side surfaces of one radial eye lug. Clamps for the eye lugs of the disc prevent wear of the side surfaces of these eye lugs as a result of their repeated mechanical contact with blades in case the fan is subject to action of an autorotation effect.

EFFECT: excluding the need for removal of a gas-turbine engine to perform restoring repair of eye lugs of ribs of a fan disc since installation of clamps can be performed directly on an engine installed under a wing of an aircraft.

8 cl, 6 dwg