A kind of double airfoil type VTOL aircraftTechnical field
The present invention relates to a kind of VTOL aircraft, more particularly to a kind of double airfoil type VTOL aircraft.
Background technology
At present, vert main wing or rotation main wing type VTOL aircraft be more first compared with tilting rotor type VTOL aircraftThe VTOL aircraft for entering, but such aircraft of the various models researched and developed before this ends in failure, as Canada researches and developsCL-84, the XC-142 of American R ＆ D etc., failure the reason for be that the area of plane for verting is too big, main wing in vertical state when, by sideThe influence of wind is too big, thus when VTOL and hovering, with certain potential safety hazard, airworthiness is poor, it is impossible to realIt is practical.
The content of the invention
It is an object of the invention to：Verted existing for main wing or rotation main wing type VTOL aircraft not for above-mentionedFoot, research and development are a kind of to be influenceed smaller by crosswind, thus security higher vert main wing or rotation main wing type VTOL aircraft,The airworthiness requirement of civil aircraft is complied fully with, as the widely used VTOL aircraft of civil aviaton, for military field, more canEnsure the life security of soldier.
The purpose of the present invention realized by following scheme, and above-mentioned main wing is verted or rotation main wing type VTOL flies retainingOn the basis of the basic structure of machine is constant, the main wing of above-mentioned VTOL aircraft is changed to double-vane by single-blade, keeps area of planeEqual, so, as long as the half of the area original main wing of the single wing of main wing just disclosure satisfy that needs, the length of wing is corresponding to widthCan reduce, long and width both can be with scaled down, it is also possible to which inequality proportion reduces, and such as the width of continental rise type wing can reduceMore, the aspect ratio of aircraft is bigger, and more preferably, the length of carrier operation version wing can reduce more some more to the stability of flight, so flyThe width of machine is smaller, and more VTOL aircrafts can be carried on naval vessels.
Double airfoil type VTOL aircraft of the invention, engine based on turbo oar engine, in upper lower wingBetween, dividing plate is installed on engine both sides, and the upper lower wing of dividing plate connection can both increase the intensity of wing, again can be with upper lower wingA duct is constituted, aircraft can avoid the generation of ring of eddy phenomenon, improve security in VTOL and hovering,Meet or exceed the level of security of helicopter.
Double airfoil type VTOL aircraft of the invention, is at least left and right symmetrically arranged two engines on main wing, typically need peaceFill four to six engines, or even the engine of eight and the above is installed, the gross thrust that engine is produced should be total more than taking offWeight, and suitably allow some leeway.
Double airfoil type VTOL aircraft of the invention, main wing both can be using pattern of verting, it would however also be possible to employ rotary mode,According to pattern of verting, main wing can be verted 90 ° or so, and the power that inclining rotary mechanism can bear is smaller, and light-small aircraft can be used, ifUsing rotary mode, rotatable 360 ° or so in theory of main wing, the power that rotating mechanism can bear is larger, and medium and heavy aircraft also may be usedUsing.
Double airfoil type VTOL aircraft of the invention, the biplane from early stage is different, and double-vane is mounted in inclining rotary mechanismOr on rotating mechanism, be connected with fuselage indirectly, again smaller than the biplane of early stage, main wing is in for the gross area of wingDuring horizontality, using the aircraft of pattern of verting, the height of main wing is highly identical or slightly higher with fuselage, and aircraft is slided and runMechanical characteristic with horizontal flight is general, and using the aircraft of rotary mode, the height of the height less than fuselage of main wing, aircraft is slided and runMechanical characteristic with horizontal flight is more preferable.
Brief description of the drawings
Fig. 1 is the double-vane schematic diagram of the double airfoil type VTOL aircraft of rotation main wing type of the invention.
In figure：1st, upper limb, 2, swing bolster, 3, turbo oar engine, 4, the arc shaped wing of connection double-vane, 5, bottom wing, 6, dividing plate,7th, engine bearer.
Specific embodiment
With reference to embodiments and compare accompanying drawing the present invention is described in detail.
The double airfoil type VTOL aircraft of rotation main wing type of the invention is main to be made up of fuselage and rotation main wing two parts,Fuselage is fixed wing aircraft fuselage, near the center of gravity of airplane below spandrel girder on fuselage, there is a circle through fuselage both sidesHole, the size and swing bolster of circular hole（2）It is in the same size, fuselage interior has fixed swing bolster（2）Bearing, swing bolster（2）Can only within the bearing rotate and there can not be other movements, also drive and control swing bolster（2）The mechanism of rotation andThe mechanism of locking rotation, swing bolster（2）Can rotate through fuselage and on demand within the bearing, it is ensured that the main wing of aircraft is instituteThe angle for needing, rotation main wing is by upper limb（1）, swing bolster（2）, turbo oar engine（3）, bottom wing（5）, dividing plate（6）, engine branchSeat（7）, and the arc shaped wing for connecting double-vane（4）Constitute.
Double airfoil type VTOL aircraft of the invention, when sliding race landing is with horizontal flight, is connected to swing bolster（2）Two endsUpper limb（1）With bottom wing（5）It is the level of state, the lift needed for producing aircraft, the lift of generation passes to swing bolster（2）,Swing bolster（2）Lift is passed to by fuselage by bearing again, the arc shaped wing of double-vane is connected（4）Auxiliary lifting is produced, and is causedAircraft is more stablized, or even more preferable than the effect of winglet.
Double airfoil type VTOL aircraft of the invention, when VTOL is with hovering, is connected to swing bolster（2）Two endsUpper limb（1）With bottom wing（5）In vertical state, the lift needed for the propeller of engine produces aircraft, the lift transmission of generationTo swing bolster（2）, swing bolster（2）Lift is passed to by fuselage by bearing again, dividing plate is installed on engine both sides（6）, everyThe upper lower wing of plate connection, can both increase the intensity of wing, can constitute a duct with upper lower wing again, and aircraft is vertically risingWhen drop is with hovering, the generation of ring of eddy phenomenon can be avoided, improve security, meet or exceed the safe water of helicopterIt is flat.