DE1962159A1 - Wing for aircraft with movable leading wing and a profile nose that can be displaced on the main wing - Google Patents

Description

Hydrofoil for aircraft with movable slat and one on the main wing displaceable profile nose The invention relates to a wing for aircraft with a movable slat and one that can be displaced on the main wing Profile nose.

In high-lift systems, according to current knowledge with a movable slat and a profile nose that can be displaced on the main wing achieved very favorable results. The aim is to use these high-lift aids on the one hand the size of the maximum lift and on the other hand the lift characteristics to be able to change without the aid of other buoyancy devices. In addition, it should continue unabated an exploitation of the curvature effect on the main wing can be guaranteed, the one makes a significant contribution to increasing lift by means of a slat.

With the invention are in a manner described above designed wing for aircraft fulfills the stated conditions by that the wing system has a high-speed flight profile that the profile nose from two miteinarder articulated partial flaps consists that the partial flaps at retracted slat with this form part of the Schnellflugprof.Lles and that the partial flaps both with retracted and extended slats for the curvature of the profile nose can be adjusted downwards. in this way it is with only one thing the already existing high-lift means, namely a movable slat and a movable profile nose, through an optionally different wide extension the partial flaps - with the slat extended or retracted - the back buoyancy as well as the buoyancy characrestic: backwash existing @@ of the invention @@@ @@ @dnung @ possible the Buoyancy devices in two for high lift generation Bringing significant positions: The partial flaps form an aerodynamic on the main wing very conveniently contoured lowering nose and thus enable one to be arranged as well aerodynamically designed slat in front of the main wing; with retracted Slats can form the partial flaps a lowered nose, which is an aerodynamic Have an effect similar to that of a Kruger flap.

A further development of the invention provides that a front partial flap has the contour of the profile nose of a high-speed flight profile on its outer surface and on its inside with a recess for part of the profile of the slat is provided. In this way, when the slat is retracted, its front part becomes Surrounded by the front partial flap to form a high-speed flight profile.

Another embodiment of the invention provides that a rear Partial flap an outer surface for curving the profile nose downwards as well as for forming having a part of the underside of the high-speed flight profile. The articulated with each other connected partial flaps can according to the desired profile curvature or lowering of the profile nose can be set.

Another embodiment of the invention is that the rear partial flap consists of individual skin fields and that in the areas of the Main fields rotatably connecting the front partial flap to the main wing Struts are provided. This results in a weight saving and with certain designs achieved an improvement in aerodynamic efficiency.

The partial flaps forming the profile nose can be relatively simple kinematics actuate and execute only rotary movements.

The invention also has the considerable advantage that the slat in which @@@ all can remain in its retracted position. if the @@@@@@@ arm lowering or arching the @@@@ llnase @ main wing An embodiment is illustrated in the drawing. They show: Fig. 1 a cross section through the front part of a main wing with the slat extended and lowered Profile nose, Fig. 2 a cross section through the main wing part according to Fig.

1 with retracted slat and lowered profile nose and Fig. 3 shows a cross section through the main wing part according to Fig.

l with the slat retracted to form a high-speed flight profile and into the Starting position raised profile nose.

A wing 1 of an aircraft, otherwise not shown has a movable slat 2 and a profile nose that can be displaced on the main wing 3, 4 equipped. The wing system has a high-speed flight profile (Fig. 3). The profile nose consists of two connected to one another by means of a joint 5 Partial flaps 3, 4. The partial flaps form when the slat 2 is retracted (Fig. 3) with this one part of the fast flight profiles. As Fig. 1 and 2 show, are the partial flaps 3 and 4 both when retracted (Fig. 2) and when extended (Fig.

1) Slat 2 can be adjusted to curve the profile nose downwards.

The front partial flap 3 has on its outer surface 7 the contour of Profile nose of a fast flight profile and is on its inside with a recess 6 provided for part of the profile of the slat 2.

In the retracted position of the slat (Fig. 3) surrounds the partial flap 9 a part of the slat and forms a part with this and the partial flap 4 of the high-speed flight profile.

The rear partial flap 4 is on the wing by means of a pivot bearing 8 1 rotatably mounted. It has an outer surface 9 for the curvature of the profile nose downwards as well as to form part of the underside of the high-speed flight profile on. A recess 10 is provided in the wing 1, into the Partial flap 4 when pivoting the partial flaps back into the one shown in Fig. 3 Starting position is placed.

By optionally adjusting the partial flaps 3 and 4 - when the or retracted slat 2 - is both the maximum lift and the lift characteristics changed in the area of maximum lift. In addition to the movable slat and the lowerable profile nose no further high-lift means are required. While the partial flaps 3, 4 only by rotating movements in the desired positions are brought, the slat can be curved or straight in the usual way Rails can be extended and retracted. The extension and retraction movements of the slat and the pivoting movements of the partial flaps are so with each other if necessary coupled that the respective desired intermediate positions - such as in Fig. 2 is shown - are adjustable. To save weight and improve the rear partial flap 4 can consist of individual skin fields of the aerodynamic effectiveness exist, in the areas of which the front partial flap 3 can be rotated with the main wing 1 connecting struts are provided.

Claims (4)

P a t e n t a n s p r ü c h e 1. Wing for aircraft with movable slat and one on the main wing displaceable profile nose, characterized in that the wing system a high-speed flight profile has that the profile nose of two articulated with each other connected partial flaps consists that the partial flaps when the slat is retracted with this form part of the high-speed flight profile and that the partial flaps both with retracted and extended slat to curve the profile nose are adjustable downwards. 2. A wing according to claim 1, characterized in that a front one Partial flap on its outer surface the contour of the profile nose se of a high-speed flight profile has and on its inside with a recess for part of the profile of the slat is provided. 3. hydrofoil according to claim 1 or 2, characterized in that a rear partial flap an outer surface for curving the profile nose downwards like also has tin forming part of the underside of the high-speed flight profile. 4. hydrofoil according to claims 1 to 3, characterized in that that the rear partial flap consists of individual skin fields and that in the areas the skin fields the front partial flap with the main wing rotatably connected Struts are provided. L e r s e i t e