CN104627364A

CN104627364A - Device for effectively increasing load of helicopter under same power

Info

Publication number: CN104627364A
Application number: CN201310565671.8A
Authority: CN
Inventors: 王雅飞; 王学礼; 刘旭英
Original assignee: Yinchuan Shanghetu New Technology Development Co Ltd
Current assignee: Yinchuan Shanghetu New Technology Development Co Ltd
Priority date: 2013-11-13
Filing date: 2013-11-13
Publication date: 2015-05-20

Abstract

The invention relates to a device for effectively increasing the load of a helicopter under same power. According to the device, a pair of top wings are additionally arranged above a helicopter rotor; because the top wings are disk-shaped bodies with straight bottom surfaces and upwards convex top surfaces, the top wings can be endued with certain lifting force as long as wind passes through the top wings according to a Bernoulli fluid mechanics principle, and such a method has a much better lifting force effect compared with a method for additionally providing two pairs of wings exposed at the downwash wind pressure of the rotor, so that the helicopter provided with the device can be effectively increased in load, reduced in rotor load, reduced in helicopter energy consumption and reduced in carbon discharge amount and achieves the environmental friendliness under the precondition that engine power is not increased.

Description

The device of helicopter load is effectively increased under a kind of equal power

Technical field

Effectively increase a device for helicopter load under equal power, belong to air material class.

Background technology

The method of current increase helicopter load only has two, and namely one is the power increasing driving engine, the revolution of rotor is increased or makes the diameter of rotor increase or the quantity of paddle is increased, and two is install aileron and wing on fuselage both sides, increases the lift of aircraft.But these two kinds of methods all also exist fatal weakness again, namely one is increase the weight and volume that the power of driving engine will certainly increase aircraft, two be wash wind and downward wind-force under the aileron installed is in aircraft rotary wing compressing under, thus the lift increased is very limited, although just limited from the lift increased after adding aileron, but but can hang the aspects such as bomb more easily to consider, increase aileron is still very calculated.Can under the prerequisite not increasing aircraft engine acc power, effectively increase lift and the load of aircraft? this is the thing that helicopter manufacturing firm of China and foreign countries is dreamed of always, but effect is little so far.

Summary of the invention

The present invention does not increase for above-mentioned helicopter the difficult problem that power is just difficult to increase lift and load, manufacture and design a kind of device, make the helicopter installing this device under the prerequisite not increasing engine power, also can increase the load that even can increase helicopter significantly.

The method that the present invention takes installs one pair of roof limb additional above lifting airscrew.Because the Top wing is the disc body that a bottom surface radian little end face radian is large, therefore according to Bernoulli Jacob's fluid mechanics principle, no matter aircraft moves ahead, side flies or turn, as long as head-on there is distinguished and admirable mistake, just all can give the lift that roof limb is certain.The size of lift is decided by the size of roof limb and the speed of a ship or plane of aircraft, and namely the size of roof limb is larger, and more great ， Fan speed is faster for lift, and lift is larger.But because the speed of a ship or plane of getting off the plane in the prerequisite not changing aircraft engine mechanomotive force is certain, therefore the deciding factor increasing airplane ascensional force is exactly increase the area size of roof limb as wide as possible.

accompanying drawing:accompanying drawing is structural representation of the present invention, [1] be roof limb, [2] are roof limb bottom surface, are called for short bottom surface, [3] be roof limb end face, be called for short end face, [4] are pitman, and [5] are rotor, [6] be slurry hub, [7] be rotor power axle, [8] are fuselage, and [9] are aileron.

specific embodiments:specific embodiment of the invention project plan comparison is simple, as long as namely produce one pair of roof limb according to layout design, the top being installed at helicopter is just passable.

The Top wing [1] is the disc body that a cambered surface that bottom surface [2] is straight, end face [3] protruding or bottom surface [2] are upwards recessed and recessed is less than the cambered surface that end face [3] raises up, and is arranged on the top center position of rotor [5] by pitman [4] and slurry hub [6]; The protruding bottom surface of end face due to the Top wing [1] is straight, therefore according in Bernoulli Jacob's fluid mechanics about the principle of " the large pressure of flow velocity is little, and the little pressure of flow velocity is large ", when air flows to the edge of another side from any edge of the Top wing [1], distance from bottom is short, flow velocity is slow, and pressure is large, and distance from top is long, flow velocity is fast, pressure is little, therefore namely air-flow can lift power to bottom surface [2] generation one lift upwards, and this power of lifting can pass through formula i.e. lift=airfoil lift coefficient × 1/2 × density of air × speed square × wing area tries to achieve.

According to calculating, this Top wing [1] is under the state of aircraft normal flight, and the lift brought to aircraft is much higher than the gravity of the Top wing [1] self.In other words, after adding load onto this Top wing [1] to helicopter, not only can not increase the weight of the burden of aircraft, also instead can increase the lift of aircraft, reduce the burden of rotor, reduce the energy consumption of aircraft.Again because this Top wing [1] meets hydromechanical smooth dish fluid, and be in the central part of rotor, therefore the resistance of the wind of the hand of rotation caused to rotor when following rotor wing rotation is very little, almost negligible.

In sum, helicopter is after installing the Top wing [1] of the present invention, not only can increase the lift of aircraft, reduce the burden of rotor, reduce the energy consumption of aircraft, and the quantity discharged of carbon dioxide can also be reduced, clean atmosphere, reducing environmental protection cost, is good job feelings of benefiting the nation and the people really.

Claims

1. under an equal power, effectively increase the device of helicopter load, be made up of roof limb [1], bottom surface [2], end face [3], pitman [4] and rotor [5], slurry hub [6], rotor power axle [7], fuselage [8], aileron [9] etc., it is characterized in that: described roof limb [1] is arranged on the top center position of rotor [5] by pitman [4].

2. under a kind of equal power according to claim 1, effectively increase the device of helicopter load, it is characterized in that: described roof limb [1] is the disc body that a bottom surface [2] is straight, end face [3] is protruding, and its bottom surface [2] also can be upwards recessed cambered surfaces.