CN105015770A

CN105015770A - Vertical take-off and landing aircraft with wing body blended with single duct

Info

Publication number: CN105015770A
Application number: CN201510452513.0A
Authority: CN
Inventors: 张飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-29
Filing date: 2015-07-29
Publication date: 2015-11-04

Abstract

The invention discloses a vertical take-off and landing aircraft with a wing body blended with a single duct. The aircraft mainly consists of an aircraft fuselage 3, a front engine 2 and a duct engine 8. The aircraft fuselage 3 is in a blended wing body layout. The front engine 2 is installed on the front part of the fuselage of the aircraft, and the duct 7 is positioned in the middle part of the fuselage 3 of the aircraft. Parts 4 are folding wings positioned on two sides of the fuselage 3. The duct engine 8 is positioned in the middle of the duct 7, and fixedly arranged on the fuselage of the aircraft by a fixing rod 11. Parts 5 and 6 are flaps of the aircraft, and are positioned on the back part of the aircraft and the back parts of the wings. Parts 9 are folding positions of the wings of the aircraft. A front propeller 1 of the aircraft is positioned at the front end of the aircraft. Empennages 12 of the aircraft are positioned at the tail of the aircraft, and are in V-shaped symmetrical distribution. Three undercarriages 13 of the aircraft are distributed on the lower part of the aircraft in a manner that one undercarriage is at the front and two undercarriages are at the back, and the undercarriages 13 can also be supporting rods 14. The vertical take-off and landing aircraft disclosed by the invention is mainly applicable to the field of aviation, and can be applied as small and medium-sized airplanes, unmanned aerial vehicles, model airplanes and aerial photography airplanes.

Description

Blended wing-body list culvert vertical take-off and landing aircraft

Technical field

The present invention is a kind of employing blended wing-body aerodynamic arrangement, is the aircraft of single duct, is a kind of new multi-purpose aircraft, is mainly applicable to aviation field in the middle of fuselage, can be used as middle-size and small-size aircraft and unmanned plane and model plane aerial photography aircraft and applies.

Background technology

Along with the fast development of aviation industry, aircraft is more and more advanced, and the kind of aircraft is also more and more various.But main based on fixed wing aircraft and autogyro at present, but most of fixed wing aircraft needs longer plane track, can not vertical takeoff and landing and hovering, use very inconvenient.And autogyro is present in several root problem because employing screw propeller.First, autogyro easily causes sonic boom phenomenon because of front blade awing, and the reason that rear blade easily produces stall event causes flying speed slower.And because of the reason that screw propeller makes air-flow move from top to bottom, helicopter cabin can not be excessive, also limit the load carrying ability of autogyro simultaneously.In today that development in science and technology becomes more and more important, the solution of above problem is also more and more necessary.For above deficiency, the present invention can effectively overcome the above problems to a certain extent, can show the outstanding ability that other kind aircraft do not have simultaneously.

Summary of the invention

The object of the invention is can not vertical takeoff and landing and hovering for most of fixed wing aircraft, autogyro speed, volume, the problem limited with load carrying ability, designing one can vertical takeoff and landing, and speed and volume aspect effectively increase, and function more comprehensively, 1ift-drag ratio is higher, the good aircraft of stealth.

Technical scheme of the present invention is: a kind of blended wing-body list culvert vertical take-off and landing aircraft.Which employs the aerodynamic arrangement of blended wing-body, and be furnished with screw propeller onward impulse is provided, make it have the flight characteristics of conventional fixed-wing aircraft.Himself is with duct simultaneously, installs driving engine and rotor, for it provides lift upwards, make it have the characteristic of autogyro in duct.It is primarily of aircraft fuselage 3, and F/F 2 and duct driving engine 8 form.Aircraft fuselage 3 is blended wing-body layout.F/F 2 is installed on aircraft fuselage front portion, F/F 2 is provided with preposition screw propeller 1.Duct 7 is positioned in the middle part of aircraft fuselage 3.4 is folding wing, is positioned at fuselage 3 both sides.Duct driving engine 8 is positioned in the middle of duct 7, and drives shrouded propeller 10, and duct driving engine 8 is fixed on aircraft fuselage by fixed link 11.5 and 6 is the wing flap of aircraft, is positioned at aircraft rear portion and wing rear portion.9 is aircraft wing burst.The preposition screw propeller 1 of aircraft is positioned at aircraft front end.The empennage 12 of aircraft is positioned at aircraft afterbody, V-shaped symmetrical.The alighting gear 13 of aircraft has 3, is front 1 rear 2 formulas, is distributed in aircraft bottom, also can be strut bar 14, such simplified operation complexity, more convenient aircraft vertical landing.Fixed link 11 quantity connecting duct driving engine 8 and aircraft fuselage 3 is not fixed, and is set to 3 herein, circumferentially angularly distributes.

beneficial effect of the present invention:

The structure of this aircraft takes full advantage of aerodynamics, and can produce ground effect, 1ift-drag ratio is higher, can have the cruise efficiency of fixed wing aircraft and the ability of helicopter vertical takeoff and landing simultaneously.Aircraft have employed the aerodynamic arrangement of blended wing-body, can have higher lift coefficient while the higher stealth of guarantee.The present invention simultaneously can reach vertical takeoff and landing by duct driving engine, and the effect of hovering.Present invention employs two cover systems of fixed wing aircraft and helicopter, when when two driving engines, any one damages, aircraft can rely on another engine health to land, so the present invention is safer.The present invention can make aircraft have flying speed higher than pure helicopter, and stealth is good, and flight efficiency is high, can be dual-use.

Accompanying drawing explanation

Fig. 1 is the birds-eye view of aircraft entirety.

Fig. 2 is the front view of aircraft entirety.

Fig. 3 is the lateral plan of aircraft entirety.

Fig. 4 is the lateral plan of aircraft support bar 14.

Fig. 5 is the schematic diagram of the duct driving engine 8 of aircraft.

1. preposition screw propeller, 2. F/F, 3. aircraft fuselage, 4. folding wing, 5. wing flap, 6. wing flap, 7. ducts, 8. duct driving engine, 9. wing-folding place, 10. shrouded propeller in figure, 11. fixed links, 12.V T tail, 13. alighting gears, 14, strut bar.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is further illustrated.

A kind of blended wing-body list culvert vertical take-off and landing aircraft.Aircraft is primarily of aircraft fuselage 3, and F/F 2 and duct driving engine 8 form.As shown in Figure 1, aircraft fuselage 3 is primarily of folding wing 4, and wing flap 5, wing flap 6 and rudder-vator 12 form.The particular location at wing-folding place 9 as shown in Figure 1.What wing-folding suitably can reduce aircraft parks area.5 and 6 is the wing flap of aircraft, is positioned at aircraft rear portion and wing rear portion, can be used for increasing lift, increases resistance, change direction.The V-shaped symmetry of empennage 12 is installed on aircraft afterbody, from Fig. 2 and Fig. 3.A pair rudder-vator can control pitching and the left and right turn of aircraft simultaneously.Duct driving engine 8 is positioned in the static geometric center of gravity of aircraft.Be installed on aircraft fuselage 3 by fixed link 11.For the counter torque of balance duct driving engine, duct driving engine 8 can be coaxial anti-paddle motor, also can be driving engine mounting means as shown graphically in fig 5.Two driving engines are arranged on a base, and hand of rotation is contrary, for balancing counter torque.Drive shrouded propeller 10 to rotate the lift produced upwards when duct driving engine 8 normally works, aircraft can upwards be flown, and aircraft obtains a pulling force forward by F/F 2 simultaneously, can flight forward.When cruising normally, the fuselage 3 upper surface radian of aircraft is greater than lower surface radian, and like this when flight forward, aircraft fuselage can be equivalent to the wing of fixed wing aircraft, can produce lift.The alighting gear 13 of aircraft is positioned at aircraft bottom, and in two symmetrical after last, also can be strut bar 14, such simplified operation complexity, more convenient aircraft vertical landing, from Fig. 3 and Fig. 4.

operation logic;

During aircraft takeoff, can adopt two kinds of modes of taking off, one is vertical takeoff and landing.A kind of is sliding race landing.When adopting vertical takeoff and landing, duct driving engine 8 carrying screws rotates, thus produces lift, and aircraft is upwards flown, and when aircraft rises to certain altitude, aircraft obtains a pulling force forward by F/F 2, now can flight forward.When adopting sliding race landing, aircraft directly can obtain a pulling force forward by F/F 2, and miniwatt opens duct driving engine 8 to increase lift simultaneously, and now aircraft can rolling start as fixed wing aircraft.

When aircraft is normaled cruise, can high-performance unlatching F/F 2, low power unlatching duct driving engine 8, now cruise efficiency is the highest.The air-flow that shrouded propeller 10 produces all flows through in the middle of duct, increases power, reduces air-flow resistance, and aircraft front incoming flow flows backward along aircraft lower house simultaneously, can form one deck air cushion when flowing through duct.Can be produced certain lift by the action of high-speed airflow that sustainer, main engine accelerates by duct on air cushion, principle is similar to air cushion vehicle and sails on the water.

When aircraft lands, vertical landing or sliding race formula landing also can be adopted.Principle is similar to principle of taking off.Owing to adopting the design of single duct, during vertical takeoff and landing, a certain amount of ring of eddy may be produced.

The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.

Claims

1. a blended wing-body list culvert vertical take-off and landing aircraft, it is primarily of aircraft fuselage 3, and F/F 2 and duct driving engine 8 form; Aircraft fuselage 3 is blended wing-body layout; F/F 2 is installed on aircraft fuselage front portion, F/F 2 is provided with preposition screw propeller 1; Duct 7 is positioned in the middle part of aircraft fuselage 3; 4 is folding wing, is positioned at fuselage 3 both sides; Duct driving engine 8 is positioned in the middle of duct 7, and drives shrouded propeller 10, and duct driving engine 8 is fixed on aircraft fuselage by fixed link 11; 5 and 6 is the wing flap of aircraft, is positioned at aircraft rear portion and wing rear portion; 9 is aircraft wing burst; The empennage 12 of aircraft is positioned at aircraft afterbody, V-shaped symmetrical; The alighting gear 13 of aircraft has 3, is front 1 rear 2 formulas, is distributed in aircraft bottom.

2. blended wing-body list culvert vertical take-off and landing aircraft according to claim 1, is characterized in that fixed link 11 quantity of described connection duct driving engine 8 and aircraft fuselage 3 is not fixed, can arrange, be set to 3 herein, circumferentially angularly distribute by demand.

3. blended wing-body list culvert vertical take-off and landing aircraft according to claim 1, is characterized in that described driving engine can be propeller turbine, piston engine, electrical motor, spark ignition engine, its mounting means can be coaxial anti-paddle motor mode, also can symmetrically up and down install.

4. blended wing-body list culvert vertical take-off and landing aircraft according to claim 1, is characterized in that as SUAV (small unmanned aerial vehicle), model plane, take photo by plane and toy airplane time can not adopt folding wing 4 and wing flap 5, wing flap 6.

5. blended wing-body list culvert vertical take-off and landing aircraft according to claim 1, is characterized in that described alighting gear 13 can be strut bar, simplified operation complexity, more convenient aircraft vertical landing.