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Air intake, nacelle and propulsion system of an aircraft with single-piece sectors

A technology for engine compartments and air intakes, applied in the direction of combustion of engine components, machines/engines, intake ports of power plants, etc., to achieve the effect of reducing resistance

Pending Publication Date: 2020-01-17
AIRBUS OPERATIONS (SAS)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These solutions only partially reduce the observed problems and still have their own limitations when the diameter of the nacelle is increased

Method used

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  • Air intake, nacelle and propulsion system of an aircraft with single-piece sectors
  • Air intake, nacelle and propulsion system of an aircraft with single-piece sectors
  • Air intake, nacelle and propulsion system of an aircraft with single-piece sectors

Examples

Experimental program
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Effect test

Embodiment Construction

[0053] The air inlet according to the invention shown in the figures essentially consists of a plurality of sectors 1 of so-called monolithic sectors, for example of Figure 4 Twelve monolithic sectors 1 are shown. In a variant, the air inlet may comprise only six integral sectors or a smaller number of integral sectors.

[0054] According to one embodiment, each integral sector 1 comprises an integral continuous wall 10 comprising a portion 12 forming a lip, a portion 11 forming an outer panel and a portion 13 forming an inner panel. For the sake of simplicity, reference numeral 13 designates both the part of the integral sector forming the inner panel and the integral wall part of the rear skin forming said part forming the inner panel.

[0055] Each integral sector 1 is fastened to the rear frame 19 by means of a first row of fixings (rivets) 17 at the rear end of said portion 11 forming the outer panel of its integral continuous skin. It is also fixed to the engine flang...

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PUM

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Abstract

An aircraft nacelle air intake includes sectors each having a lip forming portion, an outer panel forming portion and an inner panel forming portion. The outer panel forming portions and lip forming portions are formed by a continuous one-piece wall. At at least one junction between two adjacent sectors, an opening and a hatch are provided between the outer panel forming portions of the sectors. The inner panel forming portions and the lip forming portions of the sectors are edge to edge and fixed to each other by fixing devices accessible from the inside of the sectors and invisible from outside of the sectors. A maintenance method in which, when a zone of a sector is damaged, the sector concerned is removed as a whole and is replaced by a new of recycled sector is also described.

Description

technical field [0001] The present invention relates to propulsion assemblies for aircraft, more particularly to nacelles of such propulsion assemblies, and more precisely to air intakes for aircraft nacelles. Background technique [0002] Traditionally, an aircraft nacelle consists, from front to rear: a first section upstream of the aerodynamic flow, known as the air intake; a second section covering the engine blower casing, known as the blower cowl; and usually a second section downstream of the aerodynamic flow. Three-section, which has a thrust reversal area surrounding the engine turbine body. [0003] Such as figure 1 The air intake shown generally includes structural members such as a front frame 101 and a rear frame 104, and also includes a lip 100 supported by the front frame from front to rear of the nacelle, an outer panel 102 extending the lip outside the nacelle (which Forming the outer wall of the air intake), extending the lip inside the nacelle and formin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D33/02
CPCB64D33/02B64D2033/0206B64D2033/0233B64D2033/022B64F5/10B64D29/08Y02P70/50B64C7/02B64D29/06F01D25/24
Inventor A·波特F·旁斯A·布里J·桑提耶
Owner AIRBUS OPERATIONS (SAS)