Aircraft jet airfoil system

Abstract

An aircraft jet airfoil system belongs to the technical field of aircrafts. The utility model provides an air jet airfoil system of an aircraft, which comprises an air compression device and an air jet airfoil, and is characterized in that the air jet airfoil is provided with an airfoil air jet port on the airfoil of the aircraft or a control surface air jet port on the control surface of the airfoil; and the airfoil air jet holes or the control surface air jet holes can jet air compressed by the air compression device. According to the utility model, the control force of the airfoil of the aircraft can be enhanced, the attitude control capability of the aircraft is further improved, and the aircraft can still realize stable control of the flight attitude when flying at a low speed.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircrafts, especially fixed-wing aircrafts. Background Art

[0002] For a fixed-wing aircraft, after reaching a certain flight speed, the control surfaces of the aircraft can generate corresponding control forces to adjust the flight attitude of the aircraft, so as to achieve stable flight. When the flight speed of the aircraft is relatively low, the relative speed between the aircraft and the atmosphere is relatively low, and the control force generated by the control surfaces of the aircraft is insufficient. At this time, the flight safety will be seriously threatened, and even the aircraft may crash and people may die. If the aircraft can provide greater control force at the same flight speed, especially when the flight speed is relatively low, the controllability and maneuverability of the aircraft can be improved, and the aircraft can fly more safely and agilely. Summary of the Invention

[0003] Aiming at the above problems and making up for the deficiencies of the prior art, the utility model provides a jet wing surface, which can provide greater control force for the aircraft and enhance the controllability and maneuverability of the aircraft.

[0004] To achieve the above object, the utility model adopts the following technical solutions.

[0005] An aircraft jet wing surface system includes an air compression device and a jet wing surface. It is characterized in that the jet wing surface has wing surface jet nozzles on the wing surface of the aircraft or rudder surface jet nozzles on the control surface of the wing surface, and the wing surface jet nozzles or rudder surface jet nozzles can eject the air compressed by the air compression device.

[0006] Further, the wing surface jet nozzles are located in front of the control surface of the wing surface; the rudder surface jet nozzles are located at the trailing edge of the control surface.

[0007] Further, the included angle between the outlet direction of the wing surface jet nozzles and the wing surface chord line is not greater than 30 degrees; the included angle between the outlet direction of the rudder surface jet nozzles and the rudder surface chord line is not greater than 30 degrees.

[0008] Further, the air compression device is part of the function of the engine or an air compressor.

[0009] Further, there is an air flow control device between the air compression device and the wing surface jet nozzles or the rudder surface jet nozzles and they are connected through an air duct, and the air flow control device can control the air injection volume of the wing surface jet nozzles or the rudder surface jet nozzles.

[0010] Further, the air compression device has an air compression control device, which can control the compressed air pressure or the compressed air volume.

[0011] Advantages of the Utility Model

[0012] The jet wing surface system of the utility model can provide greater control force for the aircraft, enhance the controllability and maneuverability of the aircraft. Especially when the flight speed is relatively low, it can make the aircraft fly more safely and agilely. Brief Description of the Drawings

[0013] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer and more understandable, the following further details the utility model in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Markings in the figure: 1 is the jet wing surface, 2 is the wing surface jet orifice, 3 is the control surface, 4 is the control surface jet orifice, 5 is the air compression device, 6 is the air flow control device, 7 is the air duct, 8 is the air compression control device. Specific Embodiments

[0016] As shown in the drawings, this embodiment provides a jet wing surface system for an aircraft, which includes an air compression device 5 and a jet wing surface 1. The jet wing surface 1 has a wing surface jet orifice 2 on the wing surface of the aircraft or a control surface jet orifice 4 on the control surface 3 of the wing surface, and the air compressed by the air compression device 5 can be ejected from the wing surface jet orifice 2 or the control surface jet orifice 4.

[0017] The wing surface jet orifice 2 is located in front of the control surface 3 of the wing surface; the control surface jet orifice 4 is located at the trailing edge of the control surface 3.

[0018] The included angle between the outlet direction of the wing surface jet orifice 2 and the chord line of the jet wing surface 1 is not greater than 30 degrees, and the air flow basically ejects along the wing surface. And because the wing surface jet orifice 2 is located in front of the control surface 3 of the wing surface, when the control surface 3 tilts upward, the air flow ejected from the wing surface jet orifice 2 on the upper side of the wing surface will eject onto the upper surface of the control surface 3, giving a downward force to the control surface 3; when the control surface 3 tilts downward, the air flow ejected from the wing surface jet orifice 2 on the lower side of the wing surface will eject onto the lower surface of the control surface 3, giving an upward force to the control surface. The included angle between the outlet direction of the control surface jet orifice 4 and the chord line of the control surface 3 is not greater than 30 degrees, and the air flow basically ejects along the trailing edge of the control surface 3. When the control surface 3 tilts upward, the air flow ejects upward, giving a downward force to the control surface 3; when the control surface 3 tilts downward, the air flow ejects downward, giving an upward force to the control surface 3. Therefore, whether the wing surface jet orifice 2 or the control surface jet orifice 4 is adopted, and whether the control surface 3 tilts upward or downward, the acting force generated by the jet wing surface 1 is consistent with the force required to control the control surface 3 of a normal wing aircraft.

[0019] The air ejected by the jet wing surface 1 is sourced from the air compression device 5, which can be an air compressor or bleed air from the engine fan, compressor, etc.

[0020] There is an air flow control device 6 between the air compression device 5 and the wing surface jet nozzle 2 or the rudder surface jet nozzle 4 and they are connected through an air duct 7, so that the air flow control device 6 can control the air ejection volume of multiple different wing surface jet nozzles 2 or rudder surface jet nozzles 4. For example, when both the aircraft wing and the vertical tail have rudder surface jet nozzles 4, when the aircraft needs to adjust its left - right flight attitude, the air flow control device 6 of the tail can be controlled to increase the air flow to the tail, and at the same time, the air flow control device 6 of the wing can be controlled to reduce the air flow to the wing.

[0021] The greatest function of the jet wing surface 1 is to increase the controllability at low speeds of the aircraft, while there is no urgent need when the aircraft is flying at high speeds. In addition, whether extracting compressed air from the engine or extracting power from the engine to drive the air compressor will reduce the thrust or output power of the engine. Therefore, an air compression control device 8 can be installed on the air compression device 5 to control the compressed air pressure or the amount of compressed air, and reduce or shut off the extraction of compressed air or driving power from the engine by the air compression device 5 when the aircraft is flying at high speeds.

[0022] It can be understood that the above specific description of the present utility model is only for explaining the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the usage requirements, it is within the protection scope of the present utility model.

Claims

1. Aircraft jet wing surface system, comprising an air compression device (5) and a jet wing surface (1), characterized in that, The jet wing surface (1) has wing surface jet nozzles (2) on the wing surface of the aircraft or has rudder surface jet nozzles (4) on the rudder surface (3) of the wing surface. The wing surface jet nozzles (2) or the rudder surface jet nozzles (4) can eject the air compressed by the air compression device (5).

2. The aircraft jet wing surface system according to claim 1, characterized in that, The wing surface jet nozzles (2) are located in front of the rudder surface (3) of the wing surface; the rudder surface jet nozzles (4) are located at the trailing edge of the rudder surface (3).

3. The aircraft jet wing surface system according to claim 2, characterized in that, The included angle between the outlet direction of the wing surface jet nozzles (2) and the wing surface chord line is not greater than 30 degrees; the included angle between the outlet direction of the rudder surface jet nozzles (4) and the rudder surface chord line is not greater than 30 degrees.

4. The aircraft jet wing surface system according to claim 3, characterized in that, The air compression device (5) is a partial function of the engine or an air compressor.

5. The aircraft jet wing surface system according to claim 4, characterized in that An air flow control device (6) is provided between the air compression device (5) and the wing surface jet nozzles (2) or the rudder surface jet nozzles (4) and they are connected through an air duct (7). The air flow control device (6) can control the air injection volume of the wing surface jet nozzles (2) or the rudder surface jet nozzles (4).

6. The aircraft jet wing surface system according to claim 5, wherein, The air compression device (5) has an air compression control device (8) which can control the compressed air pressure or the compressed air volume.

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