EP 2117663 B1 20140305 - HELICOPTER WITH HORIZONTAL CONTROL
Title (en)
HELICOPTER WITH HORIZONTAL CONTROL
Title (de)
HUBSCHRAUBER MIT HORIZONTALER STEUERUNG
Title (fr)
HÉLICOPTÈRE AVEC COMMANDE HORIZONTALE
Publication
Application
Priority
- US 2008051938 W 20080124
- US 62791907 A 20070126
Abstract (en)
[origin: WO2008092022A1] A helicopter includes a system to effect motion in a horizontal dimension thereby to direct the desired direction. The rotor blades are driven by a rotor shaft and which is hinge mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary. A control for moving the angle of incidence of at least one blade of the rotor cyclically along at least part of a 360-degree rotation path around the rotor shaft. This causes a variation in a lift force of the blade along at least part of the rotations path. This causes the body to be urged in a relatively horizontal direction from a relative position of rest. The control includes an actuator for engaging with an assembly depending from the rotor, the inter-engagement of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor. The system includes a rotor, preferably complemented with a stabilizer rotor. There is a control ring attached to the main rotor, and an actuator device connected with the helicopter body structure. The control ring is generally centered around the vertical rotor axis, and moves with the rotor when tilted around the feather axis.
IPC 8 full level
A63H 27/133 (2006.01); B64C 27/00 (2006.01)
CPC (source: EP)
A63H 27/12 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008092022 A1 20080731; EP 2117663 A1 20091118; EP 2117663 A4 20120125; EP 2117663 B1 20140305
DOCDB simple family (application)
US 2008051938 W 20080124; EP 08713970 A 20080124