PROPULSOR Russian patent published in 2007 - IPC B64C27/605 

FIELD: flying vehicle main rotors.

SUBSTANCE: proposed propulsor includes main rotor with wobble plate. Main rotor has blades with roots, flapping hinge with thrust projection, head with shaft, gear train of reduction gear, control levers and damper. Root of each blade is secured by means of hinge to wall of shaft head by means of two bushes. Main rotor is also provided with pump, hydraulic motors, hydrodistributing bushes and reversible cock which are used for turning the blades. Main rotor is provided with turning mechanism for inclination relative to helicopter body. Turning mechanism includes worm mechanism mounted in between engageable surfaces of struts of swivel boss of main rotor and load-bearing struts of helicopter body. Worm shaft is secured on strut of body and is connected with reversible electric motor.

EFFECT: reduced overall dimensions; increased lifting force; simplified construction of wobble plate; enhanced reliability.

2 cl, 10 dwg