SCREW FOR AIRCRAFT HOVERING AND METHOD OF DETECTING SPATIAL POSITION OF BLADE RELATIVE TO SAID SCREW BUSHING Russian patent published in 2020 - IPC B64C27/32 G01B11/26 B64D43/00 

Abstract RU 2724566 C2

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to propeller blades motion control systems. Screw (3, 3') for aircraft (1) made with possibility of hovering comprises drive shaft (6), bushing (5) connected to drive shaft (6) and made with possibility of rotation around first axis (A), and at least two blades (9) pivotally connected to bushing (5) by means of rigid or elastic connection so that they can take spatial position turned around and/or shifted along second axis (B, C, D). Aircraft (1) further comprises detection means (25) configured to detect the spatial position of at least one said vane (9) relative to bushing (5). Detector (25) is configured to obtain an optical image associated with the spatial position of blade (9) relative to bushing (5).

EFFECT: enabling determination of helicopter rotor blade displacements and turns using the minimum possible number of components.

13 cl, 9 dwg

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RU 2 724 566 C2

Authors

Redaelli, Matteo

Riviello, Luca

Colombo, Attilio

Trainelli, Lorenzo

Zappa, Emanuele

Rolando, Alberto

Cordisco, Potito

Vigoni, Edoardo

Terraneo, Mauro

Grassetti, Riccardo

Dates

2020-06-23Published

2017-04-07Filed