FIELD: aviation.
SUBSTANCE: invention relates to aircraft engineering, particularly, to the designs of helicopter rotor drives and may be used for rotary-wing aircraft with a coaxial bearing system, including superlight aircraft. Power drive of the coaxial bearing system is fixed between the upper and lower screws of the aircraft on the fixed tubular axis, which is also the axis of rotation of the screws. Power drive consists of at least two electric motors of the upper screw drive and two electric motors of the lower screw drive, which are located along the circumferences of the gear wheels of the upper and lower screws, respectively, gears of the screw drive and electric wires. At the same time electric motors of one propeller drive together transfer torque to gear wheel of upper or lower propeller, respectively.
EFFECT: higher safety, possibility of use for ultralight aircraft due to reduced weight of the structure.
4 cl, 2 dwg
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