阅读说明：本技术 一种涵道风扇动力低成本高速长航时布局的飞行器 (Ducted fan power low-cost high-speed long-endurance layout aircraft ) 是由 杨小川 毛仲君 汪华松 罗巍 魏建烽 何炬恒 姜久龙 刘瑞 于 2020-05-14 设计创作，主要内容包括：本发明涉及飞行器技术领域,公开了一种涵道风扇动力低成本高速长航时布局的飞行器,包括机身、机翼,机身靠近尾部的位置设置有涵道风扇,涵道风扇与机身同轴设置。本发明采用涵道风扇与机身同轴设置,涵道风扇与机身融为一体,减小迎风面积,且半径较螺旋桨小,转速高,适用于高速飞行,相较于活塞发动机-螺旋桨布局飞行器能显著提高速度；涵道风扇与活塞发动机搭配的高速布局,依靠活塞发动机低耗油特点,能达到高速飞行且显著减小飞行器装载燃油的重量,以降低全机重量并降低成本；同等燃油重量情况下较喷气动力工作时间更长,提高航时。(The invention relates to the technical field of aircrafts, and discloses an aircraft with a ducted fan power, low cost, high speed and long endurance layout. The ducted fan and the aircraft body are coaxially arranged, the ducted fan and the aircraft body are integrated, the windward area is reduced, the radius is smaller than that of a propeller, the rotating speed is high, the ducted fan is suitable for high-speed flight, and the speed can be obviously improved compared with a piston engine-propeller layout aircraft; the high-speed layout of the matching of the ducted fan and the piston engine can achieve high-speed flight and obviously reduce the weight of fuel loaded by an aircraft by depending on the low-fuel-consumption characteristic of the piston engine so as to reduce the weight of the whole aircraft and reduce the cost; the working time is longer than that of jet power under the condition of the same fuel weight, and the time of flight is improved.)

1. The utility model provides an aircraft of overall arrangement during high-speed long voyage of duct fan power low-cost, includes fuselage (1), wing (2), its characterized in that: the ducted fan is characterized in that a ducted fan (4) is arranged at the position, close to the tail, of the machine body (1), and the ducted fan (4) and the machine body (1) are coaxially arranged.

2. The ducted fan powered low-cost high-speed long endurance layout aircraft according to claim 1, characterized by: the inlet end and the outlet end of the ducted fan (4) are respectively provided with a plurality of support rods (5) along the radial direction of the ducted fan (4), one end of each support rod (5) is fixed on the inner wall of the ducted fan (4), and the other end of each support rod (5) is fixed on the machine body (1) to realize the coaxial fixation of the ducted fan (4) and the machine body (1); the aircraft is characterized in that slipstream rudders (3) capable of controlling the deflection of the aircraft are symmetrically arranged at the outlet end of the ducted fan (4) in the circumferential direction, the slipstream rudders (3) are hinged to support rods (5) at the outlet end of the ducted fan (4) and are far away from one side of blades of the ducted fan (4), and the slipstream rudders (3) are driven by a steering engine pull rod (6) to deflect.

3. The ducted fan powered low-cost high-speed long endurance layout aircraft according to claim 2, characterized by: the number of the supporting rods (5) used for hinging the slipstream rudders (3) is four, the four supporting rods (5) are in a cross structure and are radially distributed along the ducted fan (4), two of the supporting rods (5) are positioned in the vertical direction, and the other two supporting rods (5) are positioned in the horizontal direction.

4. The ducted fan powered low-cost high-speed long endurance layout aircraft according to any one of claims 1-3, characterized by: the driving mechanism of the ducted fan (4) is a piston engine.

5. The ducted fan powered low-cost high-speed long endurance layout aircraft according to claim 4, characterized by: the wing (2) adopts a sweepback wing.

Technical Field

The invention relates to the technical field of aircrafts, in particular to an aircraft with a duct fan power, low cost, high speed and long endurance layout.

Background

In the field of aviation aircrafts, low-cost high-speed long-endurance aircrafts are a class of aircrafts with advanced concepts, have important significance for the innovative development of future aircrafts, and have great application prospects in the military and civil fields. However, the technical difficulty of the aircraft is high, and the problems of contradiction between high-speed flight and indexes such as low cost, light weight, long flight time and the like of the aircraft are obvious. At present, related researches at home and abroad are few, so that the problem of contradiction between high-speed flight and the characteristics of low cost, light weight and long endurance is a key factor for developing the aircraft.

The existing low-cost aircraft mostly adopts electric power layout, and has the problems of low flying speed, short flight time and the like; the aircraft adopting the piston engine-propeller propulsion power layout has the problems of relatively low flying speed and the like, and the aircraft achieving the high-speed configuration mostly adopts the turbojet/turbofan power layout in the layout design, so that the aircraft can meet the requirement of high flying speed, but has the defects of short flying time, heavy weight and high cost.

Disclosure of Invention

Based on the problems, the invention provides the aircraft with the ducted fan power, low cost, high speed and long endurance layout, the ducted fan and the aircraft body are coaxially arranged, the ducted fan and the aircraft body are integrated, the windward area is reduced, the radius is smaller than that of a propeller, the rotating speed is high, the aircraft is suitable for high-speed flight, and the speed can be obviously improved compared with the aircraft with the piston engine-propeller layout; the high-speed layout of the matching of the ducted fan and the piston engine can achieve high-speed flight and obviously reduce the weight of fuel loaded by an aircraft by depending on the low-fuel-consumption characteristic of the piston engine so as to reduce the weight of the whole aircraft and reduce the cost; the working time is longer than that of jet power under the condition of the same fuel weight, and the time of flight is improved.

In order to solve the technical problems, the aircraft comprises an aircraft body and wings, wherein a ducted fan is arranged at the position, close to the tail, of the aircraft body, and the ducted fan and the aircraft body are coaxially arranged.

Furthermore, a plurality of support rods are arranged at the inlet end and the outlet end of the ducted fan along the radial direction of the ducted fan, one end of each support rod is fixed on the inner wall of the ducted fan, and the other end of each support rod is fixed on the machine body to realize the coaxial fixation of the ducted fan and the machine body; the exit end of the ducted fan is annularly and symmetrically provided with slip flow rudders capable of controlling the aircraft to deflect, the slip flow rudders are hinged to a support rod at the exit end of the ducted fan and far away from one side of the ducted fan blades, and the slip flow rudders are driven to deflect by a steering engine pull rod.

Furthermore, the number of the supporting rods for hinging the slip flow rudder is four, the four supporting rods are in a cross structure and are distributed along the radial direction of the ducted fan, two of the supporting rods are located in the vertical direction, and the other two supporting rods are located in the horizontal direction.

Further, the drive mechanism of the ducted fan is a piston engine.

Further, the wing adopts a sweepback wing.

Compared with the prior art, the invention has the beneficial effects that:

1) the ducted fan and the aircraft body are coaxially arranged, the ducted fan and the aircraft body are integrated, the windward area is reduced, the radius is smaller than that of a propeller, the rotating speed is high, the ducted fan is suitable for high-speed flight, and the speed can be obviously improved compared with a piston engine-propeller layout aircraft;

2) the high-speed layout of the matching of the ducted fan and the piston engine can achieve high-speed flight and obviously reduce the weight of fuel loaded by an aircraft by depending on the low-fuel-consumption characteristic of the piston engine so as to reduce the weight of the whole aircraft and reduce the cost; the working time is longer than that of jet power under the condition of the same fuel weight, and the time of flight is improved;

3) the exposed parts are reduced, the windward area is small, and the device can be suitable for high-speed layout configuration.

Drawings

FIG. 1 is a schematic view of an embodiment of an aircraft with a ducted fan power low-cost high-speed long-endurance layout of a tailless slipstream rudder;

FIG. 2 is a front view of an aircraft in an embodiment of the aircraft in a ducted fan power low cost high speed long endurance configuration without tailed slipstream rudders;

FIG. 3 is a schematic view of the installation of a slipstream rudder in the ducted fan in the embodiment;

wherein: 1. a body; 2. an airfoil; 3. a slipstream rudder; 4. a ducted fan; 5. a support bar; 6. steering wheel pull rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.