High lift system for an aircraft

• US 8,844,878 B2
• Filed: 08/06/2008
• Issued: 09/30/2014
• Est. Priority Date: 08/06/2007
• Status: Active Grant

• Current Assignee: Airbus Operations GmbH (Airbus SE)
• Original Assignee: Airbus Operations GmbH (Airbus SE)
• Inventors: Voss, Timo, Loerke, Joachim
• Primary Examiner(s): Dinh, Tien
• Assistant Examiner(s): Fabula, Michael A
• Application Number:
  US12/671,572
• Publication Number:
  US 20110101174A1
• Time in Patent Office: 2,246 Days
• Field of Search: 244211-216, 244/45.R, 244/46, 244/48, 244/53
• US Class Current: 244/216
• CPC Class Codes: B64C 9/02 Mounting or supporting thereof
• CPC Class Codes: B64C 9/16 at the rear of the wing
• CPC Class Codes: B64C 9/28 by flaps at both the front and rear of the wing operating in unison

Abstract

A high lift system for an aircraft includes: a main wing, a flap disposed on the main wing of the aircraft that can be adjusted between a retracted position and several extended positions relative to the main wing by way of a flap actuating mechanism and a drive device, a carrier part disposed on the main wing to which the flap actuating mechanism is coupled and relative to which the flap actuating mechanism for adjusting the flap can be moved, where the carrier part is disposed on the main wing by way of a bearing device including an adjusting device with which the orientation of the carrier part relative to the orientation of the main wing can be adjusted.

Claims

1. A high lift system for an aircraft, comprising:

a main wing,

a flap that is arranged on the main wing of the aircraft and is adjustable relative to the main wing between a retracted position and several extended positions by means of flap actuating elements and a drive device,

at least one spoiler movably coupled to the main wing,

a motive coupling provided between the at least one spoiler and the flap such that the spoiler moves in complementary fashion as the flap moves, and

a carrier part arranged on the main wing, to which the flap actuating elements are coupled and relative to which the flap actuating elements are movable in order to adjust the flap wherein,

the carrier part is arranged on the main wing with the aid of a bearing device that features an adjusting device comprising a first adjusting device and a second adjusting device which have a distance from each other along a flow direction, and by means of which an orientation of the carrier part is adjustable relative to an orientation of the main wing,

at least one of the adjusting devices includes;

a distance adjusting device, by means of which a distance of an upper side of the carrier part on the distance adjusting device from a wing chord of the main wing is adjustable and which distance adjusting device comprises;

a screw connection with a receptacle device on a side of the carrier part,

a receptacle device on a side of the main wing,

a connecting element for adjustably connecting the receptacle devices,

a spacer located between the upper side of the carrier part and the main wing, and

wherein the motive coupling is configured to couple the adjustment of the flap to an adjustment of the spoiler in such a manner that the spoiler assumes a spoiler droop angle, at which a predetermined gap dimension between the spoiler and the flap exists, so that when the orientation of the carrier part relative to the orientation of the main wing is adjusted the motive coupling effects a corresponding change of the spoiler droop angle in the extended positions of the flap to maintain essentially the same gap dimension between the spoiler and the flap.

2. The high lift system according to claim 1, wherein the first adjusting device includes a joint for producing an articulated connection between the main wing and the carrier part and the second adjusting device includes a distance adjusting device.

3. The high lift system according to claim 1, wherein the first adjusting device is positioned upstream of the second adjusting device.

4. The high lift system according to claim 1, wherein the first adjusting device is in the form of an articulated bolt connection with a pin that is rigidly connected to the main wing, a receptacle device on the carrier part and an axle that connects the receptacle device and the pin in an articulated fashion.

5. The high lift system according to claim 1, wherein the carrier part is arranged underneath the wing such that it is aligned in the flow direction and guides a movable slide coupled to the flap.

6. The high lift system according to claim 5, wherein the connection between the slide and the flap includes a rigid connection and the slide is adjustable with respect to the carrier part by means the drive device, wherein the drive device features a rotary drive driving motor and an output lever that is coupled to the driving motor and to a connecting piece fixed to the flap.

7. The high lift system according to claim 5, wherein the flap is supported on the slide by means of an articulated connection that extends angular or transverse to the main flow direction.

8. The high lift system according to claim 7, wherein the drive device features a rotary drive driving motor and an output lever that is coupled to the driving motor and to a connecting piece fixed on the flap.

9. The high lift system according to claim 1, wherein the flap actuating elements comprise a bar linkage adjusting device.

10. The high lift system according to claim 9, wherein the bar linkage adjusting device includes:

a first connecting piece that is connected to the main wing, such that the carrier part is arranged underneath the first connecting piece,

second and third connecting pieces that are connected to the flap,

a first lever that is coupled at a first end to the first connecting piece by means of a first pivot joint arranged thereon and is coupled at a second end to the second connecting piece of the flap by means of a second pivot joint arranged thereon,

a second lever that is coupled at a first end to the carrier part by means of a third pivot joint arranged thereon and is coupled at a second end to the third connecting piece of the flap by means of a fourth pivot joint arranged thereon.

11. The high lift system according to claim 1, wherein the motive coupling between the spoiler and the flap is realized by at least one of:

mechanically, with a control, and with a regulating system.

12. The high lift system according to claim 1, wherein the spoiler is movably coupled directly to the main wing.