DE4112585A1

DE4112585A1 - Aircraft with annular wing - generates laminar air flow radially from centre line to provide lift

Info

Publication number: DE4112585A1
Application number: DE19914112585
Authority: DE
Inventors: Hans Geschka
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-17
Filing date: 1991-04-17
Publication date: 1991-08-29

Abstract

The aircraft has an annular wing with a lift-generating profile (1), over which laminar air flow takes place in the radial direction from the centre-line (2), to generate lift. This air can be drawn in via a port (7) in the top guide plate (6) by a bladed fan (3), discharging to the wing in the radial direction, and directed by the top and bottom guide plates (6, 5) so as to generate the necessary lift. USE - For supersonic and hypersonic flight, there being no loss of lift at the ends of the supporting surfaces.

Description

Das Ringflügel-Luftfahrzeug, kurz: Ringflügler, ist ein senkrechstartender und -landender Flugkörper, der auch für schnellen Geradeausflug geeignet ist.The ring wing aircraft, in short: ring wing, is a vertical launching and landing missile that is also suitable for fast straight flight.

Aus der Literatur der Luftfahrt-Technik (z. B.: SCHLICHTING, H./TRUCKENBRODT, E.: Aerodynamik des Flugzeuges, Bln 1967/69, 2 Bände; ZIEREP, J.: Theorie der schallnahen und hyperschallströmungen, Karlsruhe 1966) geht hervor, daß bei allen bisher bekannten Konstruktionen von fest mit dem Flugzeug verbundenen und auch von rotierenden Tragflächen der Mangel der Grenzschichtbeeinflussung und der Auftriebsverluste an den Tragflächenenden hingenommen werden muß.From the literature of aviation technology (e.g. SCHLICHTING, H./TRUCKENBRODT, E .: aerodynamics of the aircraft, Bln 1967/69, 2 volumes; ZIEREP, J .: Theory of sound-related and hypersonic currents, Karlsruhe 1966) shows that with all previously known constructions of fixed connected to the aircraft and also by rotating wings the lack of boundary layer influence and Buoyancy losses at the wing ends are accepted got to.

Dieser Mangel wird erfindungsgemäß dadurch vermieden, daß ein in sich geschlossener, rotationssymmetrischer Ringflügel überall die gleichen Auftriebskräfte liefert, weil keine Tragflächenenden vorhanden sind.According to the invention, this deficiency is avoided by that a self-contained, rotationally symmetrical Ring wing provides the same buoyancy everywhere because there are no wing ends.

Der Luftstrom wrid durch die Gebläseflügel 3 erzeugt, deren Rotation der Antriebsmotor 4 bewirkt. Somit wird durch die Lufteinlaßklappen 7 ein symmetrisch angesaugter Luftstrom radial an den Ringflügel 1 geleitet.The air flow is generated by the fan blades 3 , the rotation of which causes the drive motor 4 . Thus, a symmetrically drawn air stream is directed radially to the ring wing 1 through the air inlet flaps 7 .

Damit ist der Ringflügel dadurch gekennzeichnet, daß der von der Symmetrieachse 2 her an das aerodynamisch zweckmäßig gestaltete Ringflügelprofil abgelenkte Luftstrom die Auftriebserzeugung bewirkt.The ring wing is thus characterized in that the air flow deflected from the symmetry axis 2 to the aerodynamically expediently designed ring wing profile causes the generation of lift.

Der Ringflügel ist dadurch gekennzeichnet, daß von der Symmetrieachse 2 her ein laminarer stetiger Luftstrom zur Auftriebserzeugung an den aerodynamisch zweckmäßig gestalteten Ringflügel 1 angeblasen wird.The ring wing is characterized in that a laminar, steady air flow for generating lift is blown from the axis of symmetry 2 to the aerodynamically designed ring wing 1 .

Der Übergang von Steig- zum Sinkflug wird durch Drosselung des Luftstromes erreicht. Die beiden Luftführungungsleitbleche 5 und 6 sind aerodynamisch so gestaltet und im Abstand zum Ringflügelprofil eingestellt, daß die größtmögliche Auftriebskraft P entsteht.The transition from climb to descent is achieved by throttling the air flow. The two air guide baffles 5 and 6 are aerodynamically designed and set at a distance from the ring wing profile so that the greatest possible buoyancy force P arises.

Die drei Möglichkeiten zum Übergang in den Horizontalflug sind:The three options for the transition to level flight are:

I) By inclining the axis of symmetry 2 to the vertical to derive a propulsive force V from the parallel force program P so that sufficient buoyancy force A remains effective. This creates a stable straight flight at a constant height.
II) Equipped with the engine 8, if necessary with a propeller or as a jet engine, the propulsive force V is generated which is superimposed on the circular flow around the profile so that the buoyancy force A is retained.
III) According to. Fig. 2, the two air guide vanes 5 , 6 closely placed on the ring wing 1 . Due to the appropriate shape of the guide plates 5 and 6 , a modified missile is created for fast straight and climb flight. The driving force for this is supplied by the jet engine 8 .

Die im Fluge einklappbaren rollfähigen Standbeine Fig. 3, 11 sind mit Druckaufnehmern ausgerüstet, die bereits vor dem Start eine genaue Trimmung des Ringflügels erlauben.The foldable standing legs Fig. 3, 11 in flight are equipped with pressure transducers that allow the ring wing to be trimmed precisely before take-off.

Gegenüber dem Triebwerk 8 und den Steuerflächen 10 werden zweckmäßig die Piloten- und Passagierkabine 12 bzw. die Frachträume angeordnet.Opposite the engine 8 and the control surfaces 10 , the pilot and passenger cabin 12 or the cargo holds are expediently arranged.

Um die Geräuschbelastung bei Start und Landung zu reduzieren, kann ein oben offener schallisolierter zylindrischer Turm geeigneter Größe und Formgestaltung eingesetzt werden. So kann der Einsatz von Ringflüglern z. B. von Bahnhofsdächern und in Stadtzentren erfolgen. Weite An fahrtswege zu Flughäfen werden überflüssig.To reduce the noise level during takeoff and landing, can be a soundproof cylindrical open top Tower of appropriate size and shape used will. So the use of ring wings z. B. from Station roofs and in city centers. Wide range Driving routes to airports are superfluous.

Bezugszeichen:Reference number:

1 Ringlüfgel
2 Symmetrieachse
3 Gebläseflügel
4 Antriebsmotor
5 unteres Leitblech
6 oberes Leitblech
7 Lufteinlaßklappen
8 Triebwerk
9 Seitenleitwerk
10 Höhenleitwerk
11 Standbeine
12 Piloten- und Passagierkabine 1 ring gel
2 axis of symmetry
3 fan blades
4 drive motor
5 lower baffle
6 upper baffle
7 air inlet flaps
8 engine
9 vertical tail
10 horizontal stabilizer
11 pillars
12 pilot and passenger cabins

Claims

1. Annular ring wing aircraft (short: ring wing), characterized in that the specially designed lift profile ( 1 ) from the axis of symmetry ( 2 ) is flowed radially with a laminar air flow to generate lift.

2. Ring wing aircraft according to claim 1, characterized in that the air flow required for generating lift is sucked in through an opening in the upper guide plate ( 4 ) ( 7 ) and is fed radially to the ring wing by fan blades ( 3 ).

3. Ring wing aircraft according to claim 1 and 2, characterized in that the outgoing air flow from the axis of symmetry through the lower ( 5 ) and the upper ( 6 ) baffle plate are deflected so that a sufficient lift is created on the ring wing ( 1 ).

4. Ring wing aircraft according to claim 1, 2 and 3, characterized in that the shape and the distance between the two baffles is aerodynamically designed by the ring wing surface, that the buoyancy effect is optimized.

5. Ring wing according to claim 1 to 4, characterized in that after the application of the upper guide plate ( 6 ) and closing the suction opening ( 7 ) and after the application of the lower guide plate ( 5 ) to the ring wing one for the hypersonic horizontal or Suitable disk-shaped missiles climb.

6. Ring wing aircraft according to claim 1 to 5, characterized in that the guide plates ( 5 ) and ( 6 ) are given such an external aerodynamic shape that when driven by a jet engine optimal flight characteristics arise.

7. ring wing aircraft according to claim 1 to 6, characterized in that the rollable, retractable legs ( 11 ) are equipped with pressure gauges that enable a trim before the start.

8. ring wing aircraft according to claim 1 to 7, characterized in that takeoff and landing in a cylindrical, soundproofed open tower at the top.