CPC F02K 1/72 (2013.01) [F02K 1/827 (2013.01)] | 9 Claims |
1. A thrust reverser for an aircraft propulsion unit, having a longitudinal central axis and comprising a fixed structure, at least one cowl and a plurality of diversion cascades, the cowl and the cascades forming a movable system able to move in translation with respect to the fixed structure along the longitudinal central axis, between an advanced direct-thrust position and a retracted thrust-reversal position, the movable system further comprising at least one rear cascade-support structure for supporting the cascades, wherein a rear end of at least several of the plurality of diversion cascades are secured on said at least one rear cascade-support structure, said at least one rear cascade-support structure extending in a circumferential direction of the thrust reverser,
wherein said at least one rear cascade-support structure incorporates an acoustic absorption device comprising a lattice of cells and a skin covering the cells, the skin including a first surface arranged facing the cells, and a second surface opposite to the first, radially delimiting towards the outside a part of a secondary gas-flow duct, in the advanced direct-thrust position of the movable system,
wherein the cowl is able to move in rotation about a pivot axis between a closed flight position and an open maintenance position, said at least one rear cascade-support structure comprising an axial connection member intended to cooperate with a complementary axial connection member provided on a front end of the cowl, when the latter is in the closed flight position.
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