US 11,673,647 B2
System for driving a flap arrangement between a retracted position and an extended position
Andreas Grimminger, Hamburg (DE); Markus Gibbert, Hamburg (DE); and Bernhard Schlipf, Hamburg (DE)
Assigned to Airbus Operations GmbH, Hamburg (DE)
Filed by Airbus Operations GmbH, Hamburg (DE)
Filed on Jul. 2, 2021, as Appl. No. 17/366,347.
Application 17/366,347 is a continuation of application No. 16/507,758, filed on Jul. 10, 2019, granted, now 11,077,933.
Claims priority of application No. 102018116881.0 (DE), filed on Jul. 12, 2018.
Prior Publication US 2021/0331782 A1, Oct. 28, 2021
Int. Cl. B64C 9/24 (2006.01); B64C 13/28 (2006.01)
CPC B64C 9/24 (2013.01) [B64C 13/28 (2013.01)] 20 Claims
OG exemplary drawing
 
8. A flap system for driving a leading-edge flap between a retracted position and an extended position, the system comprising:
a leading-edge flap having a first flap joint and a second flap joint,
a first scissor link,
a second scissor link,
a first connecting link, and
an actuator,
wherein the actuator is coupled with either the first scissor link or the first connecting link,
wherein the first scissor link comprises a first support joint for rotatably supporting the first scissor link on a first structurally fixed point, wherein an end of the first scissor link opposed to the first support joint is coupled with the first flap joint,
wherein the first connecting link comprises a second support joint for rotatably supporting the first connecting link on a second structurally fixed point and wherein an end of the first connecting link opposed to the second support joint is rotatably coupled with an end of the second scissor link,
wherein an end of the second scissor link opposed to the end coupled with the first connecting link is coupled with the second flap joint,
wherein additionally the first scissor link and the second scissor link are rotatably coupled to each other at a scissor joint to form a scissor arrangement, wherein the first scissor link and the second scissor link swivably support each other at the scissor joint,
wherein the actuator, the first scissor link, the second scissor link and the first connecting link are arranged to actively place the leading-edge flap from the retracted position into the extended position, and
wherein the actuator, the first scissor link, the second scissor link and the first connecting link are configured and arranged to actively place the leading-edge flap from the retracted position into an intermediate position, in which a chord axis of the flap is adjusted to a desired angle relative to a local chord axis of a wing, and to provide a translational motion afterwards along the chord axis of the flap moving the leading-edge flap into the extended position, in which the angle of the chord axis of the flap relative to the local chord axis of the wing is increased in a range of 10° to 15°.