FIELD: mechanical engineering; engines. SUBSTANCE: gas-turbine engine reduction gear has drive and output shafts, gear train of cylindrical herringbone gears of reduction gear first and second stages interconnected by torsion bars. Multiflow, for instance three-flow gear train is used being arranged in housing with cross splits. Torsion bars of gears are made with different number of splines being prime numbers. Gears are installed on antifriction bearings, and drive and output shafts, on ball radial-thrust bearings loaded axially by spring mechanisms. EFFECT: possibility to provide transmission of higher power, simplified design of reduction gear, improved reliability. 2 cl, 3 dwg
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