HELICOPTER ROTOR AND HELICOPTER WITH SAID ROTOR Russian patent published in 2013 - IPC B64C27/00 

FIELD: aircraft engineering.

SUBSTANCE: helicopter rotor 4 comprises transmission shaft 10 revolving around first axis B, hub 11 engaged with transmission shaft 10 at fixed angle to said first axis B to revolve around second axis C crossing said first axis B, and two blades attached to said hub 11 at fixed angle with respect to said first and second axes B, C to revolve around third axis D. Rotor 4 comprises means 50 to support blades 12 relative to hub 11 to revolve around third axes D. Said means 50 comprises at least one bearing element 60 made at least partially of elastomer and arranged between first surface 44 and second surface 24 and made integral with blade 12 and hub 11. Said element 60 deforms in operation to allow rotation of blade 12 relative to hub 11 around third axis D.

EFFECT: higher reliability, lower vibration and noise.

17 cl, 5 dwg