ADJUSTABLE MECHANICAL SYSTEM TO STABILISE HELICOPTER MULTI-BLADE ROTOR Russian patent published in 2010 - IPC B64C9/00 B64C27/32 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to control over aerodynamic surfaces and can be incorporated with the circuit of controlling cyclic pitch of multi-blade rotor, primarily, of drone small-size helicopter. Stabilisation system consists of gyro fitted on rotor shaft with the help of yoke 1 and spider. Said gyro comprises ring 9 with gimbal, three rods 11 and three weights 12. Ring 9 is coupled with jacks 15 of rotor blade dogs 16. Blades are mounted with the help of yokes 17. Weights 12 feature aerodynamic shape and are arranged on the ends of rods 11 with fixed installation angle. Gyro coupled with rotor shaft by gimbal precesses with speed of said shaft. Weights 12 can be arranged and fixed at different distances of rotor rotation axis, thus, varying gyro ability of counteracting deviation of rotor blade end surface from gyro plane.

EFFECT: reduced weight of proposed system, better attenuation of gyro vibration, simple design of gyro ring suspension.

2 dwg