HELICOPTER ROTOR AND HELICOPTER WITH SAID ROTOR (VERSIONS) Russian patent published in 2014 - IPC B64C27/04 

FIELD: transport.

SUBSTANCE: invention relates to production of helicopters. Helicopter (1) rotor (4) comprises transmission shaft (10) running relative to first axis (B), hub (11) revolving along with transmission shaft relative to axis (B) and blades (12) extending from hub (11) relative to axis (B) and along second axes (C) located across first axis (B). Every blade (12) can displace relative to hub (11) and other blades (12) with respect to appropriate fourth axis (E) parallel with first axis (B) with respect to second axis (C) and relative to appropriate third axis (D) crossing said first and second axes (B, C). Propeller (4) comprises first dampers (25) to kill vibrations caused by those of appropriate blades (12) relative to axes (E) and second dampers (50) arranged between hub main case outer surface and two first dampers (25). First dampers (25, 25') are interconnected, each being connected with appropriate blade (12). First dampers (25) are arranged between first axis (B) and fourth axis (E) of blade (12) in radial direction relative to first axis (B).

EFFECT: decreased vibration caused by advanced-delayed blade motion.

8 cl, 6 dwg