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Flame-through fuselage and flame-through-resistant floor for flame-through fuselage

A floor and flame technology, applied in aircraft floors, fuselage insulation, aircraft accessories, etc., can solve the problem of high cost

Active Publication Date: 2018-08-21
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design can meet the airworthiness requirements, but the cost is very high

Method used

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  • Flame-through fuselage and flame-through-resistant floor for flame-through fuselage
  • Flame-through fuselage and flame-through-resistant floor for flame-through fuselage

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Embodiment Construction

[0018] The technical contents and technical effects of the present invention will be further illustrated by describing the embodiments below in conjunction with the accompanying drawings.

[0019] Explanation of technical terms:

[0020] The direction along the front and back of the aircraft is called "longitudinal"; the direction along the left and right of the aircraft is called "transverse"; taking the body as the reference, the outside and the bottom are the same side, and the inside and the top are the same side.

[0021] figure 1 The illustrated embodiment comprises a longitudinally extending passenger compartment floor 3 and a cargo compartment floor 4, which are of the same material and of the same construction, combined below figure 2 Taking the cargo compartment floor 4 as an example to describe the structure of the anti-flame burn-through floor adopted in the present invention.

[0022] like figure 2 As shown, the cargo floor 4 extends longitudinally of the fus...

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PUM

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Abstract

The invention provides a flame-burning-through-resistant floor. The floor extends longitudinally and comprises a plurality of floor strips which extend longitudinally and are adjacent to one another, a plurality of flame-burning-through-resistant films covering the lower surfaces of the floor strips correspondingly, and an inverted-T-shaped firewall sealant which extends longitudinally between one pair of floor strips in butt joint. The upper portion of the firewall sealant is located between the pair of floor strips. The lower portion of the firewall sealant extends on the lower surfaces of at least one parts of the flame-burning-through-resistant films of the pair of floor strips. The invention further provides a flame-burning-through-resistant machine. The flame-burning-through-resistant machine comprises a machine body, a first floor extending longitudinally along the machine body, and a heat and sound insulation layer covering the inner surface of the machine body. The heat and sound insulation layer comprises the flame-burning-through-resistant films. The first floor comprises a horizontal floor part and extending parts which are transversely overlapped on the heat and sound insulation layer on the two sides. The flame-burning-through-resistant floor is adopted by the first floor. The heat and sound insulation layer at least extends to the position under the floor part of the first floor.

Description

technical field [0001] The invention relates to an anti-flame burn-through fuselage with an anti-flame burn-through floor, in particular to an anti-flame burn-through fuselage on an aircraft. Background technique [0002] In the field of aircraft fuselage manufacturing, due to the safety of product use, the requirements for its resistance to flame burn-through are particularly high. [0003] At present, for aircraft with more than 20 seats, the airworthiness regulations require that the heat / sound insulation materials (including fixing methods) of the lower part of the aircraft meet the requirements of 1000°C for 4 minutes to resist flame burn-through, and the heat flux is less than 2.27w / cm 2 . The essence of this clause is to ensure that the aircraft catches fire after an accidental crash and lands, and the overall fuselage can resist external flames from burning through the fuselage, so as to ensure that the occupants in the cabin have enough time for emergency evacuatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C1/18B64C1/40
CPCB64C1/18B64C1/40
Inventor 韩峰何立燕冯盟周良道刘若斯冯梓鑫胡莹
Owner COMAC
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