Removable mechanical part for acoustic insulation of an air inlet casing
AssigneeSafran Power Units
InventorsLaurent Stéphane Tardy, Jaime Georges Paul Culla
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Abstract
The invention relates to an acoustic insulation assembly for an auxiliary power unit having a centrifugal compressor (1), comprising a ring-shaped casing (8) for an air inlet (3) and comprising a plurality of reinforcing arms (9) connecting its inner walls, a plurality of removable mechanical acoustic insulation parts (10), each mechanical part (10) being ring-shaped and comprising attachment means (11) intended to engage with the casing (8), such that the mechanical part (10) and the flow surface of the casing (8), defined by a pair of reinforcing arms (9), overlie one another.
Claims9
An acoustic insulation assembly for an auxiliary power unit having a centrifugal compressor, the acoustic insulation assembly comprising:
- a ring-shaped casing for an air inlet including a plurality of reinforcing arms connecting inner walls of the ring-shaped casing, wherein the air inlet is an air inlet of the centrifugal compressor,
- the acoustic insulation assembly comprising:
- a plurality of mechanical acoustic insulation parts, each mechanical part being ring-shaped and comprising attachment means to engage with the casing such that the mechanical part and a flow surface of the casing, defined by a pair of reinforcing arms of the plurality of reinforcing arms, overlie one another.
Dependencies are inferred from the claim text.