Compression assembly for a turbine engine
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United States of America Patent
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Jul 16, 2019
Grant Date -
Oct 1, 2015
app pub date -
Nov 7, 2013
filing date -
Nov 9, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Compression assembly for a turbine engine, in particular a turboshaft engine, said assembly comprising an air inlet duct capable of receiving an air flow, at least one air compression stage comprising at least one movable compressor wheel onto which the duct discharges, and a pre-rotation grille which is positioned in the air inlet duct upstream of the movable compressor wheel in order to adjust the speed of the air in said flow at the inlet of the movable wheel and comprises a plurality of variable-setting vanes, the assembly being characterized in that the pitch between two consecutive vanes of the grille is greater than the chord of one of the two vanes at a given height of the air duct, preferably in its upper part.
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