EP 4054934 A1 20220914 - SINGLE-BLADE AIRCRAFT ROTOR
Title (en)
SINGLE-BLADE AIRCRAFT ROTOR
Title (de)
EINFLÜGELFLUGZEUGROTOR
Title (fr)
ROTOR D'AERONEF MONO-PALE
Publication
Application
Priority
- FR 1912342 A 20191104
- EP 2020080951 W 20201104
Abstract (en)
[origin: WO2021089616A1] Rotary wing aircraft rotor provided with a single blade (1) which has a longitudinal pitch axis (LL) and is hingedly mounted on the rotating shaft of the rotor about an axis (4) transverse to said rotating shaft, the wing system depicting a cone when the angle of its pitch is not zero, the rotor having a weighted device (6) for balancing the result (F8) of the horizontal component (F6) of the lifting force and the rotational drag force (F7) acting on the blade, the device being mounted so as to rotate with the wing system about its rotational shaft and generating, under the effect of the centrifugal force to which it is subjected when the wing system rotates, a horizontal force (F9) which is applied to the rotational shaft of the rotor, counter to the aforementioned result, with an intensity depending on the position of the weight(s) of the balancing device relative to the rotational shaft of the rotor.
IPC 8 full level
B64C 27/473 (2006.01); B64C 27/51 (2006.01)
CPC (source: CN EP US)
B64C 27/001 (2013.01 - US); B64C 27/43 (2013.01 - US); B64C 27/473 (2013.01 - CN EP US); B64C 27/51 (2013.01 - CN EP US); B64C 2027/005 (2013.01 - CN EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3102751 A1 20210507; CN 114641430 A 20220617; EP 4054934 A1 20220914; US 11987347 B2 20240521; US 2022388641 A1 20221208; WO 2021089616 A1 20210514
DOCDB simple family (application)
FR 1912342 A 20191104; CN 202080077092 A 20201104; EP 2020080951 W 20201104; EP 20800149 A 20201104; US 202017774285 A 20201104