FIELD: mechanical engineering; gas-turbine engines.
SUBSTANCE: proposed double-flow gas-turbine engine is provided with drive of fan impeller furnished with reduction gear. Sliding bearing is installed between antifriction bearings of each idler gear of reduction gear. One race of each antifriction bearing is installed on gear axle through resilient element. Cage of antifriction bearing is located on inner race of bearing. Ratio of radial clearance over working surface of sliding bearing to radial clearance over working surface of antifriction bearing is 1.5-100.0.
EFFECT: improved reliability of double-flow gas-turbine engine owing to reduction of radial load on antifriction bearings of reduction gear idler gears at take-off and cruising flight.
3 dwg
