SOUNDPROOF PANEL, AIR INTAKE DESIGN AND INNER FIXED STRUCTURE WITH SUCH PANEL FOR AIRCRAFT ENGINE NACELLE Russian patent published in 2015 - IPC F02C7/45 

FIELD: construction.

SUBSTANCE: soundproof panel comprises a bearing coating and a sound-absorbing porous material fixed on the specified coating. The structure of the porous material is chosen from the group, including: foams, foamed materials, thick felts, and also materials containing combinations of small-size elements, and the porous material itself is selected from the group, including: polymer, metal, ceramic, composite materials and carbon foam. On the side opposite to the bearing coating the soundproof panel comprises a plate, which partially covers the specified panel, besides, an aligning element is fixed on the plate. Another invention of the group relates to an inner fixed structure of a turbojet aircraft engine nacelle, comprising the above soundproof panel. Another invention of the group relates to design of an air intake comprising an edge of an air intake and a pneumatic anti-icing chamber. The edge of the air intake is equipped with the first soundproof panel, comprising a bearing coating, and a porous material fixed on the bearing coating. The first soundproof panel on the side opposite to the bearing coating comprises a plate partially covering the soundproof panel, besides, an aligning element is fixed on the plate. The anti-icing chamber is formed by the specified edge and the inner partition, closing the anti-icing chamber and comprising a bent element fixed by a rivet on the specified plate. The first soundproof panel comprises a porous material with open pores. The air intake design is made as capable of displacement relative to the jacket for performance of service works.

EFFECT: group of inventions makes it possible to simplify design of a soundproof panel and to provide for alignment of an air intake structure relative to an aircraft engine jacket.

13 cl, 15 dwg