SUPERSONIC SPEED ATTENUATOR COMPRISING A DE-ICING DEVICE FOR AN AIR INLET OF AN AIRCRAFT POWER PLANT, AND CORRESPONDING DE-ICING METHOD

摘要

Disclosed is a supersonic speed attenuator (2) for an air inlet (5) of an aircraft power plant (8), comprising a conical external wall (20) with a tapered end (21) upstream and an internal dividing wall (22) that delimits, with the conical external wall (20), a cavity (23); the supersonic speed attenuator (2) further comprising a de-icing device (1) comprising: an internal wall (10) mounted in the cavity (23) opposite the conical external wall (20) so that, together, the two walls delimit a calibrated de-icing volume; at least one member (11) for supplying a de-icing air flow (FD), opening into the de-icing volume; and at least one member (12) for discharging the de-icing air flow (FD) from the de-icing space.