Airborne carbon fiber material integrally-formed air inlet and outlet duct

Abstract

According to the airborne carbon fiber material integrally-formed air inlet and outlet duct, the carbon fiber integrally-formed technology is adopted, and the air inlet and outlet duct has good sealing performance; the radians of the air inlet and the air outlet are consistent with the machine body, so that better fitting property is realized; the carbon fiber material is light in weight, high in strength, good in elasticity modulus and convenient to mount, dismount and maintain; and the material has the characteristics of good corrosion resistance and small thermal expansion coefficient, and can adapt to different use environments.

Description

Technical Field

[0001] The invention belongs to the field of aviation technology and relates to an airborne carbon fiber material integrally formed inlet and outlet air duct. Background Art

[0002] When the aircraft liquid cooling system compressor is working, it needs to introduce ram air from the outside and discharge the high-temperature gas from the cabin to the outside.

[0003] At present, the existing ram air ducts and outlet ducts are mostly made of aluminum alloy and are welded after being sampled on the aircraft. The shape of the duct is difficult to control, the fit with the aircraft surface is poor, and the duct is too rigid, making it difficult to install, disassemble and maintain. Summary of the invention

[0004] The present invention provides an airborne carbon fiber material integrally formed inlet and outlet air duct, which is used for an aircraft liquid cooling system to draw air from outside the cabin and exhaust air to outside the cabin. The air duct is integrally formed with carbon fiber material, is easy to assemble and disassemble, and has good adhesion to the aircraft surface.

[0005] The present invention provides an airborne carbon fiber material integrally formed inlet and outlet air duct, comprising: an inlet air duct and an outlet air duct;

[0006] The air inlet duct comprises: a first air inlet 1, a first flange 2, and a first air duct 3;

[0007] The first flange 2 is fixed to the outside of the fuselage skin, a through hole is arranged at the center of the first flange 2, and the first air duct 3 is arranged on the inside of the fuselage, one end of which is connected to the central through hole of the first flange 2, and the other end is connected to the air inlet of the compressor of the liquid cooling system inside the fuselage;

[0008] The first air inlet 1 is in the shape of a "cat's ear", is arranged on the outside of the fuselage, is connected to the first flange 2, and covers the central through hole of the first flange 2;

[0009] The first air inlet 1 faces the nose of the aircraft;

[0010] The first air inlet 1, the first flange 2 and the first air duct 3 are made of carbon fiber material and are integrally formed.

[0011] Optionally, the wall thickness of the first air inlet 1 is 2.5 mm, the height of the highest point from the fuselage is 175 mm, and the width is 324 mm.

[0012] Optionally, the first flange 2 is connected to the aircraft fuselage via 23 M5 bolts;

[0013] The first flange 2 has a thickness of 3.5 mm, a length of 415 mm and a width of 360 mm.

[0014] Optionally, the first air duct 3 is connected to the compressor via a clamp;

[0015] The first air duct 3 has a wall thickness of 1 mm, a tube diameter of 195 mm, and a length of 350 mm.

[0016] Optionally, the air outlet includes: a second flange 4, a second air duct 5 and a second air inlet 6;

[0017] The second flange 4 is circular and fixed to the inside of the aircraft fuselage, with a ventilation hole at the center; an air outlet is provided at a corresponding position on the aircraft fuselage;

[0018] One end of the second air inlet 6 is connected to the exhaust end of the compressor in the aircraft fuselage, and the other end is connected to one end of the second air duct 5, and the other end of the second air duct 5 is connected to the second flange 4;

[0019] The second flange 4, the second air duct 5 and the second air inlet 6 are made of carbon fiber material and are integrally formed.

[0020] Optionally, the second flange 4 is connected to the aircraft fuselage by 15 M5 bolts;

[0021] The second flange 4 has a thickness of 2.5 mm and a diameter of 260 mm.

[0022] Optionally, the second air duct 5 is a straight pipe;

[0023] The second air duct 5 has a wall thickness of 1 mm, a tube diameter of 200 mm, a length of 190 mm, and an angle of 56° with the second flange 4 .

[0024] Optionally, the second air inlet 6 is connected to the compressor via a clamp;

[0025] The second air inlet 6 is a curved pipe, and the wall thickness of the second air inlet 6 is 1 mm and the diameter is 200 mm.

[0026] The present invention provides an airborne carbon fiber integrated air inlet and outlet duct, which adopts carbon fiber integrated forming technology and has good sealing performance; the curvature of the air inlet is coordinated with the body and has good fit; the carbon fiber material is light in weight, high in strength, and good in elastic modulus, and is relatively convenient to install, disassemble and maintain; and has the characteristics of good corrosion resistance and small thermal expansion coefficient, and can adapt to different use environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the air inlet duct structure;

[0028] Figure 2 This is a schematic diagram of the connection between the air inlet and the aircraft;

[0029] Figure 3 Schematic diagram of the air outlet structure;

[0030] Figure 4This is a schematic diagram of the connection between the air outlet and the aircraft;

[0031] Description of reference numerals:

[0032] 1-First air inlet;

[0033] 2- first flange;

[0034] 3-First air duct;

[0035] 4- second flange;

[0036] 5- Second air duct;

[0037] 6- Second air inlet. DETAILED DESCRIPTION

[0038] The airborne carbon fiber material integrally formed air inlet and outlet duct provided by the present invention is explained below with reference to the accompanying drawings.

[0039] like Figure 1-4 As shown, the present invention provides an airborne carbon fiber material integrally formed inlet and outlet air duct, comprising: an air inlet duct and an air outlet duct.

[0040] like Figure 1 and 2 As shown, the air inlet duct includes: a first air inlet 1, a first flange 2, and a first air duct 3.

[0041] The first air inlet 1 is in the shape of a "cat's ear" and is connected to the first flange 2. Its wall thickness is 2.5 mm, its height is 175 mm, and its width is 324 mm.

[0042] The first flange 2 is connected to the aircraft fuselage by 23 M5 bolts, and has a thickness of 3.5 mm, a length of 415 mm, and a width of 360 mm;

[0043] The first air duct 3 is connected to the compressor through a clamp, and has a wall thickness of 1 mm, a pipe diameter of 195 mm, and a length of 350 mm.

[0044] Connection diagram of air inlet and fuselage Figure 2 The first air inlet 1 is installed on the outside of the fuselage, the first flange 2 is connected to the fuselage through 23 M5 bolts, and the first air duct 3 is connected to the compressor of the liquid cooling system. When working, the ram air enters from the first air inlet 1 and enters the compressor through the first air duct 3.

[0045] like Figure 3 and 4 As shown, the present invention provides an air outlet duct integrally formed of carbon fiber material, comprising: a second flange 4, a second air duct 5, and a second air inlet 6.

[0046] The second flange 4 is connected to the aircraft fuselage by 15 M5 bolts, and has a thickness of 2.5 mm and a diameter of 260 mm;

[0047] The second air duct 5 is a straight pipe with a wall thickness of 1 mm, a pipe diameter of 200 mm, a length of 190 mm, and an angle of 56° with the flange;

[0048] The second air inlet 6 is connected to the compressor via a clamp, and has a wall thickness of 1 mm and a diameter of 200 mm.

[0049] Connection diagram of air outlet and fuselage Figure 4 The air outlet is installed on the inner side of the fuselage, and the second flange 4 is connected to the fuselage through 15 M5 bolts. When working, the hot air discharged from the compressor enters from the second air inlet 6 and is discharged from the aircraft through the second air duct 5 and the second flange 4.

Claims

1. An airborne carbon fiber integrally formed air inlet and outlet duct, characterized in that: include: Air inlet and outlet; The air inlet duct comprises: a first air inlet (1), a first flange (2), and a first air duct (3); The first flange (2) is fixed on the outside of the fuselage skin, a through hole is arranged at the center of the first flange (2), and the first air duct (3) is arranged on the inside of the fuselage, one end of which is connected to the through hole at the center of the first flange (2), and the other end of which is connected to the air inlet of the compressor of the liquid cooling system inside the fuselage; The first air inlet (1) is in the shape of a "cat's ear", is arranged on the outside of the fuselage, is connected to the first flange (2), and covers the central through hole of the first flange (2); The first air inlet (1) faces the direction of the aircraft head; The first air inlet (1), the first flange (2) and the first air duct (3) are made of carbon fiber material and are all integrally formed.

2. The airborne carbon fiber integrally formed air inlet duct according to claim 1, characterized in that: The wall thickness of the first air inlet (1) is 2.5 mm, the height of the highest point from the fuselage is 175 mm, and the width is 324 mm.

3. The airborne carbon fiber integrally formed air inlet duct according to claim 1, characterized in that: The first flange (2) is connected to the aircraft fuselage via 23 M5 bolts; The first flange (2) has a thickness of 3.5 mm, a length of 415 mm and a width of 360 mm.

4. The airborne carbon fiber integrally formed air inlet duct according to claim 1, characterized in that: The first air duct (3) is connected to the compressor via a clamp; The first air duct (3) has a wall thickness of 1 mm, a tube diameter of 195 mm and a length of 350 mm.

5. The airborne carbon fiber integrally formed air inlet duct according to claim 1, characterized in that: The air outlet includes: A second flange (4), a second air duct (5) and a second air inlet (6); The second flange (4) is circular and fixed to the inside of the aircraft fuselage, with a ventilation hole at the center; an air outlet is provided at a corresponding position on the aircraft fuselage; One end of the second air inlet (6) is connected to the exhaust end of the compressor in the aircraft fuselage, and the other end is connected to one end of the second air duct (5), and the other end of the second air duct (5) is connected to the second flange (4); The second flange (4), the second air duct (5) and the second air inlet (6) are made of carbon fiber material and are integrally formed.

6. The airborne carbon fiber integrally formed air inlet duct according to claim 5, characterized in that: The second flange (4) is connected to the aircraft fuselage via 15 M5 bolts; The thickness of the second flange (4) is 2.5 mm and the diameter is 260 mm.

7. The airborne carbon fiber integrally formed air inlet duct according to claim 5, characterized in that: The second air duct (5) is a straight pipe; The wall thickness of the second air duct (5) is 1 mm, the pipe diameter is 200 mm, the length is 190 mm, and the angle between the second air duct (5) and the second flange (4) is 56°.

8. The airborne carbon fiber integrally formed air inlet duct according to claim 5, characterized in that: The second air inlet (6) is connected to the compressor via a clamp; The second air inlet (6) is a curved pipe, and the wall thickness of the second air inlet (6) is 1 mm and the diameter is 200 mm.

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