BLADE OF GAS-TURBINE ENGINE ROTOR, PLATE OF GAS-TURBINE ENGINE ROTOR CONTAINING SUCH BLADE AND GAS-TURBINE ENGINE Russian patent published in 2012 - IPC F01D5/30 

FIELD: engines and pumps.

SUBSTANCE: blade of gas-turbine engine rotor contains leg with stop made in the form of ledge on one of its end front or aft surfaces. Leg stop includes central part with thickness less than that of stop ends in direction transverse to end surface. Length of central part of each stop is 3/4 or 4/5 of stop length in direction transverse to direct axis of blade. Another invention of the group refers to plate of gas-turbine rotor engine containing above mentioned blades, which legs are installed in slots on plate periphery, and annular flange. Annular flange is installed on plate coaxially and rests upon blades legs, at that stop of each blade leg enters corresponding cavity of flange to stop its rotation around plate axis. One more invention of the group refers to gas-turbine engine containing above mentioned rotor plate.

EFFECT: reducing weight of rotor blades without changes of flange shoulder fixing blades on plate of gas-turbine engine rotor.

8 cl, 5 dwg