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Anti-lightning ventilation pipeline structure of fuel tank of aircraft

A technology for venting pipelines and aircraft fuel tanks, applied in the direction of fuel tank safety measures, etc., can solve problems such as major disaster hazards, threatening flight safety, and no backfire prevention, and achieve the goal of eliminating disaster hazards, ensuring flight safety, and improving lightning protection effects. Effect

Active Publication Date: 2014-07-02
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the ventilation pipeline is not insulated, and there is no ability to prevent backfire
Therefore, the current aircraft fuel tank ventilation pipeline has a major disaster hazard, which threatens flight safety.

Method used

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  • Anti-lightning ventilation pipeline structure of fuel tank of aircraft
  • Anti-lightning ventilation pipeline structure of fuel tank of aircraft

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Embodiment Construction

[0008] The present invention will be described in further detail below. see figure 2 , the anti-lightning ventilation pipeline structure of the aircraft fuel tank, including the trumpet-shaped pipe joint 1, the connecting screw 2, the ventilation pipeline and the first outer casing joint nut 4, the left end of the trumpet-shaped pipe joint 1 and the ventilation pipeline is welded as a whole, the first The outer casing joint nut 4 and the right end of the ventilation pipeline are connected through a conduit flare, and there is a flange with a screw through hole on the horn-shaped pipe joint 1, and the horn-shaped pipe joint 1 is fixed on the aircraft skin by connecting screws 2; It is characterized in that the ventilation pipeline is composed of a first hard tube 10, a first clamp 5a, a rubber insulating hose 11, a second clamp 5b, a second hard tube 6, a second outer casing joint nut 8a, and an anti-backlash An insulated ventilation pipeline formed by connecting the fire pip...

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PUM

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Abstract

The invention belongs to aircraft fuel supply technologies, and relates to an anti-lightning ventilation pipeline structure of a fuel tank of an aircraft. The anti-lightning ventilation pipeline structure is characterized in that a ventilation pipeline comprises an insulating ventilation pipeline, and the insulating ventilation pipeline comprises a first rigid pipe (10), a first hoop (5a), a rubber insulating hose (11), a second hoop (5b), a second rigid pipe (6), a second outer sleeve joint nut (8a), an anti-backfire pipe (7), a third outer sleeve joint nut (8b) and a third rigid pipe (9) which are connected with one another. The anti-lightning ventilation pipeline structure of the fuel tank of the aircraft has the advantages that a lightning protection effect of a fuel system can be greatly improved, hidden disaster danger can be eliminated, and the flight safety can be guaranteed.

Description

technical field [0001] The invention belongs to aircraft fuel supply technology, and relates to an aircraft fuel tank anti-lightning ventilation pipeline structure. Background technique [0002] Existing aircraft fuel tank vent lines see figure 1 , which is composed of a trumpet-shaped pipe joint 1, a connecting bolt 2, a ventilation pipeline and a first outer casing joint nut 4 that are transitionally connected with the air vent of the aircraft. The ventilation pipeline is a ventilation conduit 3, the left end of the trumpet-shaped pipe joint 1 and the ventilation conduit 3 is welded as a whole, and the first outer casing joint nut 4 and the right end of the ventilation conduit 3 are connected through a conduit flare, and on the trumpet-shaped pipe joint 1 There is a flange with screw through holes, and the trumpet-shaped pipe joint 1 is fixed on the aircraft skin through the connecting screw 2, and the first outer sleeve joint nut 4 is connected with the pipe joint on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D37/32
Inventor 金峰安杨丁利伟张可心
Owner HARBIN
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