ACOUSTIC INSULATION ASSEMBLY FOR AN AUXILIARY POWER UNIT HAVING A CENTRIFUGAL COMPRESSOR
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United States of America Patent
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Issued Date -
Jun 20, 2024
app pub date -
Jun 30, 2022
filing date -
Jun 30, 2022
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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.
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