Novel three-dimensional braided structure for resistance wire of anti-icing air inlet duct
A three-dimensional, resistance wire technology, used in ohmic resistance heating, air inlets of turbine/propulsion devices, electrical components, etc., can solve problems such as manufacturability and regional failures, and achieve the goal of ensuring manufacturability and improving reliability. Effect
Pending Publication Date: 2022-03-01
江西九由航空装备有限公司
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[0005] Aiming at the problems of manufacturability and regional failure in the use of existing electric heaters, the present invention provides a new three-dimensional braided structure of anti-icing inlet duct resistance wires. Also improves the reliability of the heating element
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[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0017] Such as Figure 1 to Figure 6 This novel anti-icing inlet duct resistance wire three-dimensional braided structure of the present invention shown, engine 11 comprises cowling 12, and inlet duct 15 is positioned at cowling 12, and inlet duct 15 is provided with hyperbolic 16, and double The resistance wire braiding layer 14 is installed on the curve 16, and the resistance wire braiding layer 14 is woven by radial resistance wires 141 and latitudinal resistance wires 142.
[0018] Further, in the three-dimensional braided structure of the novel anti-icing air duct resistance wires of the present invention, the distance between the radial resistance wires ...
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The invention discloses a novel three-dimensional braided structure for resistance wires of an anti-icing air inlet duct, an air inlet duct is positioned in an engine fairing, a hyperbolic curve is arranged in the air inlet duct, a resistance wire braided layer is mounted on the hyperbolic curve, and the resistance wire braided layer is formed by braiding radial resistance wires and weft resistance wires. The resistance wires are staggered along the radial direction and the weft direction by adopting the weaving structure, so that when a certain resistance wire fails due to impact influence or other factors, the resistance wires at the front, the back, the left and the right of the short resistance wire can still work, and the areas in the two cells can still meet the anti-icing requirement. The manufacturability of the heating assembly on the complex hyperboloid in laying is guaranteed, and meanwhile the reliability of the heating assembly is improved.
Description
technical field [0001] The invention belongs to the technical field of aero-engine components, and in particular relates to a novel three-dimensional weaving structure of anti-icing air inlet resistance wires. Background technique [0002] When the aircraft passes through the clouds under certain weather conditions, it is easy to freeze on the airframe. After the aircraft freezes, the flight performance of the aircraft will be greatly affected and the flight safety will be threatened. [0003] For a long time, aircraft anti-icing and de-icing technology has been an important research topic in aircraft system design. For components such as wings, empennages, and engine intakes, systems such as thermal anti-icing, mechanical de-icing, and liquid anti-icing are currently commonly used. These systems still have deficiencies in terms of installation and reliability. Especially in the air intake of an aircraft engine, the curved surface of the air intake is complex, the curvatur...
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IPC IPC(8): F02C7/04F02C7/047H05B3/34
CPCF02C7/04F02C7/047H05B3/34
Inventor 高宏斌刘晓婷
Owner 江西九由航空装备有限公司